Related
So I was putting V21A on my p925g, got it on and working fine, rooted it, and then when I started to flash CWM, it started acting funny. It told me to mount the SD card, so I went into options and mounted it, everything seemed fine. I then went to flash CWM again and it told me to mount the SD Card again, so I restarted my phone, and thats when it stopped working.
When I boot into Android System Recovery <3e> it says:
E:Can't mount CACHE:recovery/command
E:Can't mount CACHE:recovery/log
E:Can't open CACHE:recovery/log
and if I try to wipe data/cache/ or any of the options, it says completed, then it says E:can't mount CACHE:recovery/log
So.. am I totally screwed now..? Is there a way I can have my device recognized by USB so I can re-flash V21A, or recover the phone?
Dose it boot to the logo if so it can be fixed ill give you a link in. A sec
http://forum.xda-developers.com/showthread.php?t=1491870
And if your still having problems you talk to dark at this link
http://forum.xda-developers.com/showthread.php?t=1483630
If this helped you say thx
xstokerx said:
Dose it boot to the logo if so it can be fixed ill give you a link in. A sec
http://forum.xda-developers.com/showthread.php?t=1491870
And if your still having problems you talk to dark at this link
http://forum.xda-developers.com/showthread.php?t=1483630
If this helped you say thx
Click to expand...
Click to collapse
Yes it boots to the logo, but the problem is I can't get it to be recognized as a USB device.. Therefore I can't flash, or do anything like that..
Edit: Also I've tried to get download mode to work, but I can never seem to actually get it to work.
Ok turn It off pull the battery out then hold down the buttons for download mode plug the usb in and put the battery back in all wile hold those button down and let go when it vibrats or when devise manger sees it
xstokerx said:
Ok turn It off pull the battery out then hold down the buttons for download mode plug the usb in and put the battery back in all wile hold those button down and let go when it vibrats or when devise manger sees it
Click to expand...
Click to collapse
Haha okay thanks a lot, I'll see what happens. I'm at school right now, with my phone in my backpack.. I was going to see if I could get a replacement, but it sounds like I could fix it, if not I'll see if dark can help me!
That sounds like a problem I can definitely fix.
Sent from my Samsung Galaxy S II
The Dark Lestat said:
That sounds like a problem I can definitely fix.
Sent from my Samsung Galaxy S II
Click to expand...
Click to collapse
Haha okay, I'll hold you to it if I can't get it fixed tonight.
When I attempt to start my phone in download mode, in device manager COM&LPT section will show up with an Unknown device under it, then quickly disappear - There is a bubble in the bottom right that says there was a problem installing hardware.. Any ideas?
Arigo said:
When I attempt to start my phone in download mode, in device manager COM&LPT section will show up with an Unknown device under it, then quickly disappear - There is a bubble in the bottom right that says there was a problem installing hardware.. Any ideas?
Click to expand...
Click to collapse
If you have time today, I can TeamViewer you and fix it.
The Dark Lestat said:
If you have time today, I can TeamViewer you and fix it.
Click to expand...
Click to collapse
Haha thanks anyways, I managed to get it working. My problem was holding down the power button too long, which would shut the phone off.. >.<... Your thread is very good, and straight forward, ive learned quite a bit about my phone. Just a tip to others who flash the v21a - root using super one click, and then flash CWM via dark's flash manager, I tried to flash through rom manager, and it gave me the option for the optimus x2, thinking nothing of it, i flashed it which was the source of my problems.. im now using the King 3D rom.. has everything I need, the only downfall for me is frequent browser crashes..
Sent from my LG-P920 using XDA App
Arigo said:
Haha thanks anyways, I managed to get it working. My problem was holding down the power button too long, which would shut the phone off.. >.<... Your thread is very good, and straight forward, ive learned quite a bit about my phone. Just a tip to others who flash the v21a - root using super one click, and then flash CWM via dark's flash manager, I tried to flash through rom manager, and it gave me the option for the optimus x2, thinking nothing of it, i flashed it which was the source of my problems.. im now using the King 3D rom.. has everything I need, the only downfall for me is frequent browser crashes..
Sent from my LG-P920 using XDA App
Click to expand...
Click to collapse
Well that's great that you got it!
Optimus 3D with an identical problem
Hi guys,
UK based noob here in desperate need of some help! My LG Optimus 3D won't boot past the stock Android recovery screen. When i select "Wipe cache" etc it displays "can't mount CACHE:recovery/log".
Using the method of pressing volume up & power button i can get Windows to recognise the phone when looking at Device Manager (it shows "LGE mobile composite USB device"), but ADB doesn't let me communicate with the phone and neither does any other program.
Please please please can someone help me?! How can i fix my phone?
BACKGROUND-
I got to this stage after doing the following: i used LG Mobile Update (after a LOT of messing about trying to get it to work) to update to Android 2.3.5. It kept all my data and settings but unrooted my phone. So i re-used SuperOneClick to root my phone again.
Upgrading to Android 2.3.5 didn't give me the updated stock email app, so i wanted to try and update that myself. I went into ROM Manager.. and here is where i think i made my mistake. Instead of flashing ClockworkMod Recovery as i would do normally to do a backup image of my phone, i instead went straight to "Backup existing ROM" in the main ROM Manager page. My phone rebooted itself.. and now i am where i am. Screwed!
donuldvan said:
Hi guys,
UK based noob here in desperate need of some help! My LG Optimus 3D won't boot past the stock Android recovery screen. When i select "Wipe cache" etc it displays "can't mount CACHE:recovery/log".
Using the method of pressing volume up & power button i can get Windows to recognise the phone when looking at Device Manager (it shows "LGE mobile composite USB device"), but ADB doesn't let me communicate with the phone and neither does any other program.
Please please please can someone help me?! How can i fix my phone?
BACKGROUND-
I got to this stage after doing the following: i used LG Mobile Update (after a LOT of messing about trying to get it to work) to update to Android 2.3.5. It kept all my data and settings but unrooted my phone. So i re-used SuperOneClick to root my phone again.
Upgrading to Android 2.3.5 didn't give me the updated stock email app, so i wanted to try and update that myself. I went into ROM Manager.. and here is where i think i made my mistake. Instead of flashing ClockworkMod Recovery as i would do normally to do a backup image of my phone, i instead went straight to "Backup existing ROM" in the main ROM Manager page. My phone rebooted itself.. and now i am where i am. Screwed!
Click to expand...
Click to collapse
I'm not exactly sure, but once I got my phone in download mode (volume up + power) I just used dark lestat's guide to flash the european V21A KDZ. Once I flashed that, I downloaded his recovery manager, and flashed CWM that way. The first time I flashed CWM via rom manager is what caused all my problems..
Arigo said:
I'm not exactly sure, but once I got my phone in download mode (volume up + power) I just used dark lestat's guide to flash the european V21A KDZ. Once I flashed that, I downloaded his recovery manager, and flashed CWM that way. The first time I flashed CWM via rom manager is what caused all my problems..
Click to expand...
Click to collapse
Yeah that's where I went wrong too.
I seem to be able to get it in some sort of download mode, but I'm not entirely sure. I use the volume up + power button technique. I used the LG update software to download a recovery image and it started updating the phone, but when it gets to 15% complete it says the connection between the computer and the phone has been lost. It's really annoying!
I'll re-read Dark Lestat's guide and try that. Thanks for your response.
Got it working! Dark Lestat's guide worked a treat. I honestly thought I'd bricked my phone.
hi guys im running on gingerbread 2.3.4 V20E and i cant root my device. iv tried unlock root, gingerbreak superone click but doesn't work. also i gave tried blackjack v1.2 but i didnt get proper root access. HELP! thanks for reading!
ashvinfroyo said:
hi guys im running on gingerbread 2.3.4 V20E and i cant root my device. iv tried unlock root, gingerbreak superone click but doesn't work. also i gave tried blackjack v1.2 but i didnt get proper root access. HELP! thanks for reading!
Click to expand...
Click to collapse
No exploit will work... LG fixed that.. damn lg
Anyways why did not you search before, there are a no of threads regarding rooting.
Use cwm injection method and flash your rom again. http://forum.xda-developers.com/showthread.php?t=1512203
By the way you should try other custom roms here as well rather than stock.
A future reference and best rooting technique http://tinyurl.com/6t9vm27:thumbup:
Sent from my LG-P970 using XDA
First of all, since you're new to this board please read the Welcome To The LG Optimus Black Section..... (Please Read If You're New)
Also, read the [HOW TO]The Big N00B how-to! since it will answer most of your questions.
Second, if you would have searched you would have found your answer already, but i'll help you (i'm in a good mood today too ).
You can find an already rooted v20E firmware HERE.
Just follow the steps from THIS post but instead of using the V20B firmware files use the ones from the V20E firmware (i've already given the link to the V20E above).
Good luck and happy modding
Can't wipe data/factory reset
hello i just flashed my optimus black with smartflash as instructed i boot into recovery but however when i select wipe data there is no "yes" option to select i can only select no! HELP
Are you on cwm touch??? If you are, then yes option will be below the no. Scroll down with your volume rocker...
Sent from my LG-P970 using XDA
wow it worked!
thanks man it worked! many thanks!
ashvinfroyo said:
thanks man it worked! many thanks!
Click to expand...
Click to collapse
You are welcome ... by the way touch scrolling is also available... :-D
Sent from my LG-P970 using XDA
Smartflashtool has stopped working
Hi, my OB also has v20E firmware installed by default. I 've tried to root the phone by using smartflashtool method that has already been described above. However, whenever I tried to root my device, it always ended up in failures. The smartflashtool program either showed "Timeout error is occurred" (sometimes) up or "Smartflashtool MFC has stopped working" (most of the times) at various points in the rooting progress
I used all of the programs mentioned on the posts above but still no luck
- Installed LGSmartPhone_ModemlinkDUNDrive_WHQL_ML_Ver_1.0
- Installed LGWindowsMobile_USBDriver_WHQL_ML_Ver_1.0
- Installed LGUnitedMobileDriver_S4981MAN36AP22_ML_WHQL_Ver_3.6
- [patched]V20E_SEA.bin
- V20e_SEA.fls
And currently, my phone cannot boot into the main phone screen (it can only display LG logo at best). Please help!
b3aver said:
Hi, my OB also has v20E firmware installed by default. I 've tried to root the phone by using smartflashtool method that has already been described above. However, whenever I tried to root my device, it always ended up in failures. The smartflashtool program either showed "Timeout error is occurred" (sometimes) up or "Smartflashtool MFC has stopped working" (most of the times) at various points in the rooting progress
I used all of the programs mentioned on the posts above but still no luck
- Installed LGSmartPhone_ModemlinkDUNDrive_WHQL_ML_Ver_1.0
- Installed LGWindowsMobile_USBDriver_WHQL_ML_Ver_1.0
- Installed LGUnitedMobileDriver_S4981MAN36AP22_ML_WHQL_Ver_3.6
- [patched]V20E_SEA.bin
- V20e_SEA.fls
And currently, my phone cannot boot into the main phone screen (it can only display LG logo at best). Please help!
Click to expand...
Click to collapse
hi,
sure, you haven't root your device !
phone will reboot recovery
13. Wipe all data/factiry reset
14. flash Superuser.zip " for root device
15. Reboot system now
superuser.zip download : http://www.mediafire.com/?a1re78800owv3aj Flash with cmw touch in recovery
run smartflashtool with rights administrator also...
use this patched rom => http://forum.xda-developers.com/showpost.php?p=23833005&postcount=186
YkZ_1967 said:
hi,
sure, you haven't root your device !
phone will reboot recovery
13. Wipe all data/factiry reset
14. flash Superuser.zip " for root device
15. Reboot system now
Hi, thanks for your reply. Unfortunately, I haven't gotten to the point where the phone was rooted successfully (100%), whenever I tried to run B_SmartFlashTool_Extern.exe, it always ended up in error. What did I do wrong? I've used the appropriate files and installer, haven't I? Now, I'm totally freaked out because my phone has run out of battery and doesn't show any sign of charging even though I've connected the charger
Oh by the way, I've already used the patch rom for V20e, but still no avail and already tried running the program with admin rights
Click to expand...
Click to collapse
are you able to enter in S/W update mode now ?
key volume + and usb plugged
or use r&dtt method => http://forum.xda-developers.com/showthread.php?t=1111771
Ok, I'm totally freaked out now. I can't even start the S/W update mode anymore although I've been charging the phone for about 15 minutes. No, I don't know how to use r&dtt method, tried to read the post but I don't which one is r&dtt method. Can you help me? I've checked the charger and it felt warm after 15 minutes of charging though
b3aver said:
Ok, I'm totally freaked out now. I can't even start the S/W update mode anymore although I've been charging the phone for about 15 minutes. No, I don't know how to use r&dtt method, tried to read the post but I don't which one is r&dtt method. Can you help me? I've checked the charger and it felt warm after 15 minutes of charging though
Click to expand...
Click to collapse
remove the battery and leave five minutes without
phone must be on power off
plug usb cable and press volume keys+
say me if the phone can be enter in S/W update mode, i' m watching for LGFlashTool.exe, never used again, always unbrick my Ob with smartflash tools method
Question about root
Hi, I just root rights to V20O not only to root recovery, how to do it. Recovery mode without dissolving it.
Hi Folks,
I have a P970H and I was trying to make it a little faster. I tried a few roms and decided to use the original V20Q but I was having GPS problems.
Following google, I arrived here - http://forum.xda-developers.com/archive/index.php/t-1503459.html
Then, I decided to follow this:
m4rkiz
31st March 2012, 02:17 PM
SR3-R2 is very good (I personally use SR2 with PP9 for best smoothness).
And if you want, you can flash a tweak pack, too.
i would prefer to have combination that someone (named You) tested already, is that full list then?
1. rom - Rebuild_of_V20q_Update.zip
2. root + cwm
3. baseband - bb20120313.zip
4. kernel - Horse_Power_2x_Xtreme_StableRelease_SR2.zip
5. tweak pack - V20q_Tweak_Pack_FD_off_by_Flix123.zip
6. performace pack - HP_PerformancePack_V9_Modified_by_Flix123.zip
any comments on order in which should i flash those files?
Click to expand...
Click to collapse
as I was already on stock V20Q w/ Root, I booted on recovery, flashed with Rebuild_of_V20q_Update.zip and (I think that here was my mistake) I also applied a root.zip, the same that I've used on stock rom. When I clicked on reboot.. Voilá - NOTHING. NADA. NIENT. My phone does not boot anymore. It does not turn on, not even go to download screen (VOL UP + USB).
What do you think. did I bricked my black?
That ROm is for Optimus 2X as indicated in the thread tittle. Have you even read what thread are you at?
For the itch of flashing. Most members here "always" finds the download link without even reading information on what they are downloading. I believe you wouldn't put diesel on a gasoline car, would you?
try reviving with SmartFlash.
http://forum.xda-developers.com/showthread.php?t=1448803
http://forum.xda-developers.com/showthread.php?t=1692191
Well, then, i can throw it away. I've spent all day long reading forums and my GPS wasn't working, its really possible that I haven't realized that I was using a wrong rom.
Unfortunately for me, there is no signal from the phone, not even a tiny led blink.
leofa said:
Well, then, i can throw it away. I've spent all day long reading forums and my GPS wasn't working, its really possible that I haven't realized that I was using a wrong rom.
Unfortunately for me, there is no signal from the phone, not even a tiny led blink.
Click to expand...
Click to collapse
Next time read everting carfull i had this problem once on my htc but htc never brick and lg bricks in one time
Sent from my LG-P970 using xda premium
I think you still have chances to unbrick your phone..
First you have to enter into software upgrade mode to smart flash a ROM (.bin files)
I think (volume up + power) is wrong....it is (volume down + power key)..is right...just refer the instructions carefully
Here, I am giving the link, refer it carefully, I succussfully installed through it. (http://forum.xda-developers.com/showthread.php?t=1448803)
Go through this link, relaxedly follow the instructions.. your phone will be ubbricked and also search in google about how to enter into software upgrade mode of P970 phone
If it not successful, you have a to try as final option with LG update tool with recovery option (also search google about how to recovery with LG update tool)
Press THANKS button if I helped you
sekhar13515 said:
I think you still have chances to unbrick your phone..
First you have to enter into software upgrade mode to smart flash a ROM (.bin files)
I think (volume up + power) is wrong....it is (volume down + power key)..is right...just refer the instructions carefully
Here, I am giving the link, refer it carefully, I succussfully installed through it. (http://forum.xda-developers.com/showthread.php?t=1448803)
Go through this link, relaxedly follow the instructions.. your phone will be ubbricked and also search in google about how to enter into software upgrade mode of P970 phone
If it not successful, you have a to try as final option with LG update tool with recovery option (also search google about how to recovery with LG update tool)
Press THANKS button if I helped you
Click to expand...
Click to collapse
Hi Sekhar, the problem is that the phone doesn't even start. It doesn't recognize as a USB devicw on the computer, so, it does not create a COM port...
Then you send it to repairs.
Sent from my LG-P970 using xda premium
hi last night i installed swapper from market and ran it. afterward when i restarted my phone, it got stuck on LG logo. i waited even half hour but it doesn't go any further.
condition is that i can't access adb at lg logo screen, but i can have adb on flashing mod which comes when you press power button + vol up .
secondly it doesn't detect my internal sdcard in default recovery. when i try to access sdcard from adb by cd sdcard, it doesn't go in sdcard. when i try to flash another update.zip from ext-sdcard from default recovery, it says unknown volume for path [/sdcard].
so did swapper deleted my internal sdcard partition or what did it do? what is the solution? i tried to find swapper app from adb, went through folders to folder but i couldn't find it out. may be if i can find it from adb and remove it and also it's created file from sdcard my phone come back to life?
in the last my phone is in warranty. atleast someone show me a way to completely remove rooting from my phone through adb so i can take my phone to their customer center.
i also have lg pc suite and mobile support tool.
i had root access with supersu and i installed cwm recovery in my phone. but since phone is not starting up, i can't go into cwm recovery, i can only go in the default recovery.
please help
Re: i think swapper bricked My O4X, please help,
You tried to flash your version with kdz?
Maybe you don't need to do a clean install and keep your files and apps.
Sent from my LG-P880 using xda app-developers app
RuedasLocas said:
You tried to flash your version with kdz?
Maybe you don't need to do a clean install and keep your files and apps.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
what mean by kdz?
i just want my phone back in any cost, even if all data is lost, please
Re: i think swapper bricked My O4X, please help,
Mr.LOVER said:
what mean by kdz?
i just want my phone back in any cost, even if all data is lost, please
Click to expand...
Click to collapse
In that case use LGFlash Tool. Follow the tutorial "how to roll back..." in the 7th post you have the links for all needed files.
Sent from my LG-P880 using xda app-developers app
RuedasLocas said:
In that case use LGFlash Tool. Follow the tutorial "how to roll back..." in the 7th post you have the links for all needed files.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
7th post? which thread's 7th post? can you give link?
till that i'm gonna find.
by the way i used lg support tool , menu recovery firmware. and it downloaded 472mb file and then started extracting it and then started updating... but stoped at 4% forever.
where should i put my phone? i mean it can't boot into OS, should i go in default recovery and connect to lg tool or flashing mod?
RuedasLocas said:
In that case use LGFlash Tool. Follow the tutorial "how to roll back..." in the 7th post you have the links for all needed files.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
bro its ****in up my mind. there are a lot of things on internet, lots of guides, on xda forums there is a post i saw http://forum.xda-developers.com/showthread.php?t=2069723
this post is a tutorial to flash kdz, but i don't know what is my current firmware version, if its 20x or 10x. and how can i see that? coz he says don't downgrade from 20x to 10x with this tool, and i don't know if my is 20x may be? and i might make my problem more complicated by doing wrong things.
please guide me with right path. i'm in trouble and i'm not very experienced in these stuff, i just wanna know things i don't know like i don't know which version of kdz i should download from his link, my country is pakistan and it is not in list of countries over there, and there is european open kdz which is 10a 10b etc. which is for me? your signature says you have 20x, i don't see any 20x over there?
i repeat my situation again.
installed swapper
restarted phone
stuck on LG logo
restarted again n again, no luck
tried adb commands to remove swapper package but can't find sdcard in my root.
tried default recovery, wipe data, wipe cache, restarted, no luck
copied a custonexus rom on my ext-sd, renamed it to update.zip, went to default recovery, tried install update from ext-sd, it gives error "unknown volume for path [/sdcard]"
tried to push update.zip to cache "adb push update.zip /cache", it gives error "permission denied" file system read only.
tried to do these things by connecting my phone to pc while phone is in recovery by removing batteries and inserting, Vol down + power long hold, no luck
tried to do these things while in strange mode lol, removing batteries and inserting, vol up + power long hold. no luck
tried LG support tools, menu > customer support > recovery phone while in strange mode lol vol up + power long hold, it downloads, extracts, and on process of updating it gets stuck on 4%, waited half hour, but no luck
tried the above while going in recovery mode on phone and same options above, but it doesn't connect device.
tried to power on and on LG Logo, same did same above but no luck.
tried to go in S/W mode and do the same above, but it says communication problem, remove batteries and insert and restart update.
now thats all i could do and i know at the moment to do. flashing kdz is new thing for me, im gonna try it but i'm not sure where to start. where to download my kdz and which are right kdz for me.
this is where i need your help. please spare me some time and just tell me and think about what could i do now,
why my phone is stuck on lg logo even internal sdcard is not available, i don't know if it's unmounted by swapper, deleted or formated or partition removed. i can't use adb commands to push coz it's read only, I'm stuck
i can't even take my phone to warranty center coz it's rooted, it has root files in it which will show them it was rooted and warranty will void , even if i delete root files, how can i convince them what did i do with my phone that it's system files are touched and they can't be touched without being rooted.
STUCK NEED HELP
oh yea, one more thing to mention, i recently updated busybox and installed it as smart install, and never rebooted my phone after it, until this time.
dude, just do what Ruedalocas said
go to this thread:
http://forum.xda-developers.com/showthread.php?t=2179126
and in the seventh post is RuedasLocas tutorial, just follow it. There is even a youtube tutorial.
finally I got my phone back now
thank you very much for taking interest in helping me.
for those with similiar problems,
i went to this guide http://forum.xda-developers.com/showthread.php?t=2069723
and followed instructions,
downloaded european open v10h kdz version and flashed it as instructions. and thats all,
thanks a million
i just got through the instruction and gosh i got my lg 4x hd
thanks a million for the developer
Mr.LOVER said:
finally I got my phone back now
thank you very much for taking interest in helping me.
for those with similiar problems,
i went to this guide http://forum.xda-developers.com/showthread.php?t=2069723
and followed instructions,
downloaded european open v10h kdz version and flashed it as instructions. and thats all,
Click to expand...
Click to collapse
Hello everybody,
so I'm as new to this forum as I am to the android world. Just this Wednesday i bought a new LG Optimus 4X HD on amazon.de
Thought it would be nice to start of with Cyanogenmod.
So I started my search for some good "How-To's"...it were many I went through and I already invested many hours in getting this running. Sadly it still doesn't work. I actually wanted to stay with one How-To but at one point there's always a download not working so that other sources are needed.
So what did I do...
-I rooted it yes (at this point I needed to download "Rooting Toolkit for Optimus 4X HD" which wasn't downloadable so i switched to another How-To, btw. first How-To: http://androidlegend.com/android-4-2-1-via-cyanogenmod-10-1-for-lg-optimus-4x-hd-p880-cm10-1/
-Installed "LG 4X Recovery 1.2" and installed this way CWM.
-At another point here I installed ROM Manager, installed it and went into Recovery and here happend the first problem, kernel panic.
Said something like "couldn't load kernel/wrong kernel", kernel panics...Me panics too
Anyway, force kill -> auto reboot -> still kernel panic -> again -> batterie out and a few times with usb cable connected to PC -> Batterie again, works :good:
Ok so Clockworkmods Rom Manager seemed to be not that good... did recovery boot with LG 4X Recovery, tada works, I go into the folder with the Cyanogenmod-zip and want to start the ROM installation and it says Status 7 (of course I googled Status 7 and searched here in the xda-boards for it, nothing helpful found yet)
Installed older version of LG 4X Recovery (1.1), still same fault.
I uninstall the ROM manager, redownload and reinstall, try to backup -> Kernel panic.
I search for a different How-To, yet nothing good happened. Others go something similar and say "at booting press On-Button and Volume down-button at the same time", I do that -> Kernel panic
I have no idea whats wrong with the kernel...but normal booting works fine.
Next I read something about needing to unlock bootloader, have a workthrough aka this http://forum.xda-developers.com/showthread.php?t=2224020
After I enter "adb reboot oem-unlock" in DOS command window it should say something concerning "open bootloader", but not in my case, just a normal reboot happened (this is what it looks like at least). Checking the hidden menu also doesn't show anything as I don't have the option with the boot-loader status there.
Next trick, I go to LG Recovery again and first wipe the whole stuff and try then the Cyanogen istall, still doesn't work and as I wasn't able to backups before (tried Titanium but it froze at 12% and the stuff about ROM Manager is told^^) I now had a clean factory install, all my work before lost, nothing rooted and still a kernel which panics when I do the "safe-boot"(this volume- and on-button-thing).
I also tried 3-All-in-one solutions, neither of them worked. (2 german ones, and one english one)
So I think thats it, ah wrong, still not finished. I also tried to install a new kernel to erase that f****ng problem with the kernel panic. I choose to use WerwewolfJB_v005 http://forum.xda-developers.com/showthread.php?t=2256899
the easy and fast way made the same as the try before with the "open bootloader"-try, just normal restart. When I enter the second line in the command line, it just says "waiting for device".
So yeah, thats it. I don't know what else to do. Does anyone know what I could also do, or is this case unsolvable? Is the Smartphone broken or did I make a mistake at any point? What should I do?
I'd be super glad if anyone could help me here. I hope I described my case well enough. I hope I didn't forget anything.
Thanks in advance!
Greetz chrisus
I am also new to this stuff but maybe i could help you anyway
What is the Firmware Version of your phone?
(Sorry for bad english )
The old "adb reboot oem-unlock" didn't work for me on UK, v234-000 either. I followed this thread instead and it worked perfectly first time.
As long as your phone has been turned on and connected to the network for long enough on v20x you should be fine - once you get the notification from LG about your phone being registered or similar then you'll be fine, normally a couple of hours.
Just reflash your phone to stock, wait for the notification and try the two-step method from the above post and you should be fine.
root , recorery and unlock boot loader
you must have your bootloader unlocked in order to flash kernels
( this worked for me but I can't guarantee it will work for others you can only try !! be aware when messing with firmware and bootloader you warranty could be voided )
make sure your phone is rooted you know if it is rooted because you will have superuser installed in your apps ( grey square icon with green android head on it ). if not I used this method to root my phone so try this http://forum.xda-developers.com/showthread.php?t=2180688
if your phone is rooted next you will need a recovery this will help to backup your phone and create a restore point so in case any thing goes wrong. to install a recovery go to play store and download rom manager ( clockworkmod ) once installed open rom manger and select recovery setup. then select install or update recovery then select your phone ( lg optimus 4x hd). then select flash clockworkmod recovery. and then wait while it downloads and setup . hopefully when finished it will say succesfull. ( make sure phone is rooted or it wont work ) to check clockwork mod is working you can reboot into recovery through rom manager or power off phone then hold volume down key press power button to power up but keep holding volume down key until recovery boot up. ( be a wise option to backup phone now in recovery)
next to unlock bootloader ( so you can flash roms with kernels) go to this thread, http://forum.xda-developers.com/showthread.php?t=2224020
and download the BL_unlock_new .rar file when its download copy it to your desktop on pc and then extract it to desktop on pc . now make sure your phone is not connected to your computer go to phone settings,then go to development options, and then select usb debugging on. once debugging is on now connect your phone to pc wait for it to connect you can keep your phone on charging mode. now open the BL_unlocking_new extracted folder on desktop on pc and double click on the BL_unlock file a box should open up on your desktop asking you to tap a key to continue so press a key now your phone should reboot and some white writing will appear on screen .on your desktop the bottom line should say please... now tap a key on computer it should say press any key to continue < waiting for device> now disconnect phone from computer look on phone screen it should say now ready! now hold power button for 10 secs and let phone reboot. to test if bootloader is unlocked on phone go to dail pad and dail this 3845#*880# you should get the hidden menu on your screen scroll down to bootloader unlock check and select then select bootloader unlock check and hopefully it should say unlock...
now you have root , recovery and bootloader unlock, now you can download a rom for this phone copy rom ( should be a zip file ) to your phone then open rom manager on phone and reboot in to recovery or power off phone, hold volume down button then press power button should now boot into recovery then you want to use volume keys to scroll down and select wipe data/factory reset with power button then scroll down and select advanced then scroll down and select wipe dalvik cache then you want to select go back then select install zip from sd card then select where you saved your rom sd card or external sd card then select rom then select install...
hopefully if that's helped you or anybody else ...
Hursty uk said:
next to unlock bootloader ( so you can flash roms with kernels) go to this thread, http://forum.xda-developers.com/showthread.php?t=2224020
and download the BL_unlock_new .rar file
Click to expand...
Click to collapse
If the OP can possibly get his bootloader unlocked following the official method then he should, rather than using that file. Nobody really knows what all the 'fuses' that are blown by using that file do and that would certainly result in his warranty being voided in any country, whereas in a lot of countries his warranty won't actually be voided by using the official unlock method.
added warning
SimonTS said:
If the OP can possibly get his bootloader unlocked following the official method then he should, rather than using that file. Nobody really knows what all the 'fuses' that are blown by using that file do and that would certainly result in his warranty being voided in any country, whereas in a lot of countries his warranty won't actually be voided by using the official unlock method.
Click to expand...
Click to collapse
edited last post with a warning you could void warranty !!
Ok, thanks for the answers so far. But still, wasn't able to get any further.
@Dexxon: Firmware version is 4.0.3
Besides: Kernel Version is 2.6.39.4 and there's also something written like "[email protected] #1" in the hidden menu...is this normal? AP Bootloader Verison unknown and AP OS Version is 2.6.39.4 also this jinwoo...
@SimonTS: I tried to unlock the bootloader with your link and advices (which is the same as i tried before).
Got a message saying "Thanks for buying this LG Phone..blabla" and I guess thats what you mentantioned about that informing.
Battery was loaded to 100% so i connected it to PC, said "LG Software Mode Connection" on the phone (before I always took that "data exchange connection"), went to the adb folder and made a command window there, entered "adb reboot-bootloader", smartphone reboots, should stay in LG window screen, but it doesn't. It just boots totally normal into the home screen.
@Hursty uk: As I said in the first post. Everything regarding the ROM Manager from CWM sends my Phone into kernel panic. As this is quite hard to get a normal reboot again (even battery out for some time and back-in doesn't solve this) I really prefere to not use this option. As it is just frustrating and doesn't help.
And yes it is already rooted (I have SuperSU and I checked it with the "Root Checker"-App) Everything says it is rooted. I rooted it with that method: androidlegend.com/how-to-root-lg-optimus-4x-hd-o4x-p880
Ah I really don't know what else to do. Is something just wrong with my device?
btw I also can't do a software update with the LG Software from there website, so I could at least go 4.1 instead of 4.0.3 atm...
When I try it that way, and install the USB-Drvier for LG P880 the SW-Update button stays grey and is unclickable even though the phone is connected.
chrisus said:
Ok, thanks for the answers so far. But still, wasn't able to get any further.
@Dexxon: Firmware version is 4.0.3
Besides: Kernel Version is 2.6.39.4 and there's also something written like "[email protected] #1" in the hidden menu...is this normal? AP Bootloader Verison unknown and AP OS Version is 2.6.39.4 also this jinwoo...
@SimonTS: I tried to unlock the bootloader with your link and advices (which is the same as i tried before).
Got a message saying "Thanks for buying this LG Phone..blabla" and I guess thats what you mentantioned about that informing.
Battery was loaded to 100% so i connected it to PC, said "LG Software Mode Connection" on the phone (before I always took that "data exchange connection"), went to the adb folder and made a command window there, entered "adb reboot-bootloader", smartphone reboots, should stay in LG window screen, but it doesn't. It just boots totally normal into the home screen.
@Hursty uk: As I said in the first post. Everything regarding the ROM Manager from CWM sends my Phone into kernel panic. As this is quite hard to get a normal reboot again (even battery out for some time and back-in doesn't solve this) I really prefere to not use this option. As it is just frustrating and doesn't help.
And yes it is already rooted (I have SuperSU and I checked it with the "Root Checker"-App) Everything says it is rooted. I rooted it with that method: androidlegend.com/how-to-root-lg-optimus-4x-hd-o4x-p880
Ah I really don't know what else to do. Is something just wrong with my device?
btw I also can't do a software update with the LG Software from there website, so I could at least go 4.1 instead of 4.0.3 atm...
When I try it that way, and install the USB-Drvier for LG P880 the SW-Update button stays grey and is unclickable even though the phone is connected.
Click to expand...
Click to collapse
To unlock the bootloader following either of the official methods requires you to be running v20x (The LG Stock v4.1 code) first, so that is why the commands are doing nothing for you.
For the moment, forget about CWM, Root, Bootloaders etc - the key thing is to get your phone working again. Can you reinstall stock v10x software following the guide on this page?
SimonTS said:
To unlock the bootloader following either of the official methods requires you to be running v20x (The LG Stock v4.1 code) first, so that is why the commands are doing nothing for you.
For the moment, forget about CWM, Root, Bootloaders etc - the key thing is to get your phone working again. Can you reinstall stock v10x software following the guide on this page?
Click to expand...
Click to collapse
He might as well just flash JB with flashtool, saves him flashing ICS just to flash JB straight after
Sent from my rooted P880
SimonTS said:
To unlock the bootloader following either of the official methods requires you to be running v20x (The LG Stock v4.1 code) first, so that is why the commands are doing nothing for you.
For the moment, forget about CWM, Root, Bootloaders etc - the key thing is to get your phone working again. Can you reinstall stock v10x software following the guide on this page?
Click to expand...
Click to collapse
that would of been my next answer @SimonTS . A while back a flashed something on my phone and it got stuck at the lg bootup picture what I had to do was re-install original firmware ( through KDZ files) to get my phone working. I would try the link @SimonTS suggested .
@non4 said:
He might as well just flash JB with flashtool, saves him flashing ICS just to flash JB straight after
Click to expand...
Click to collapse
Indeed - sorry, having a slightly dense day and was more thinking about getting him back to the stage at which his phone was working correctly before.
SimonTS said:
To unlock the bootloader following either of the official methods requires you to be running v20x (The LG Stock v4.1 code) first, so that is why the commands are doing nothing for you.
For the moment, forget about CWM, Root, Bootloaders etc - the key thing is to get your phone working again. Can you reinstall stock v10x software following the guide on this page?
Click to expand...
Click to collapse
Thanks for that link, I tried it but that also didn't work (at least I guess so...)
I did everything like said at the link but at the last point the program (kdz_fw_upd.exe) crashes. Tried it 3 times, every time as administrator like mentioned in that forum post. I'm using Win 8 64bit btw...
Screenshot is in the attached .jpg. My system is japanese, but I think you can figure out what this kind of window means. It just says that the program isn't responding and needs to be shutdown.
I tried it like mentioned with putting the battery back in when the log starts and without putting it back in, in both cases the program crashes after a few seconds (~10 secs) when started.
Where do I actually see which V**x version is installed? If v10x or v20a? Surprisingly the LG Support Tool said I have v10H when the phone was still connected after the crash. And it offered me a SW-Update. But I haven't done that one yet, not sure if that would work correct...
@ chrisus
man, what is your phone status now?
in what situation you are actually?
gtdaniel said:
@ chrisus
man, what is your phone status now?
in what situation you are actually?
Click to expand...
Click to collapse
Freshly wiped so its factory reset, just rooted and LG 4X Recovery installed (for CWM touch). Nothing more.
Following Informations from Root Checker-App:
Product: x3_open_eu
Host: buildgb2
User: jinwoo.lee (wtf? i don't know what should be here at the point user, but that is clearly not me, is this factory set style?)
Additional Phone Informations from settings:
Android version: 4.0.3
Kernel version: 2.6.39.4
Build number: IML74K
Software version: LG-P880-V10h-NOV-19-2012 (ah now I see where that v10x-info is^^)
chrisus said:
Freshly wiped so its factory reset, just rooted and LG 4X Recovery installed (for CWM touch). Nothing more.
Following Informations from Root Checker-App:
Product: x3_open_eu
Host: buildgb2
User: jinwoo.lee (wtf? i don't know what should be here at the point user, but that is clearly not me, is this factory set style?)
Additional Phone Informations from settings:
Android version: 4.0.3
Kernel version: 2.6.39.4
Build number: IML74K
Software version: LG-P880-V10h-NOV-19-2012 (ah now I see where that v10x-info is^^)
Click to expand...
Click to collapse
cool!
i am glad you can bring the phone in working status again.
now you have to do to put cyanogen on your phone is:
1. install JB 4.1.2 update
2. root it again
3. install CWM Recovery again
4. unlock bootloader
for first step go to:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=
after <=> put your IMEI number
and download a v20a version compatible with your device
and apply update
if you are again in trouble post here...
and if you are else to do, please post here to not make to loose time...
gtdaniel said:
cool!
i am glad you can bring the phone in working status again.
now you have to do to put cyanogen on your phone is:
1. install JB 4.1.2 update
2. root it again
3. install CWM Recovery again
4. unlock bootloader
for first step go to:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=
after <=> put your IMEI number
and download a v20a version compatible with your device
and apply update
if you are again in trouble post here...
and if you are else to do, please post here to not make to loose time...
Click to expand...
Click to collapse
+1 this. Also, there have been many problems with running these apps using Windows 8, and you need to make sure you're not using a USB 3 port as they being other problems in to the equation.
gtdaniel said:
cool!
i am glad you can bring the phone in working status again.
now you have to do to put cyanogen on your phone is:
1. install JB 4.1.2 update
2. root it again
3. install CWM Recovery again
4. unlock bootloader
for first step go to:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=
after <=> put your IMEI number
and download a v20a version compatible with your device
and apply update
if you are again in trouble post here...
and if you are else to do, please post here to not make to loose time...
Click to expand...
Click to collapse
Ok so I've flashed JB with the LG Updater (without batterie and volume down button pressed connecting to PC, than start the update -> meanwhile putting batterie back in)
JB worked just fine and I also don't had the problem with the kernel panic when booting with volume down and power button.
So I thought, everything fresh and also different, I might give the ROM Manager App again a try (after I rooted it that way: http://forum.xda-developers.com/showthread.php?t=2180688 )...well, wasn't that smart. After I installed the Recovery for P880 in the ROM Manager, i made a normal boot (just for sure), back in the app, i wanted to go into Recovery mode and again kernel panic, bit different this time cause it does a shutdown after 5 seconds^^
Anyway, this way it didn't work, from now on I also couldn't go into safe mode anymore, same kernel panic.
As this kind of recovery doesn't seem to work, I tried the "old" way with the "LG 4X Recovery" I mentioned before. After recovery installation i just wanted to boot normal aaaand nothing happened. It stayed in the LG screen. Restart and anything didn't help here so I backed back to v10H with previous methods. Now I just got a security error saying "morning call is empty", no idea what that means but I just did the same method for JB again.
Worked afterwards, so I wanted to try it without ROM Manager Recovery installed and just LG 4X Recovery, (after rooted again of course) and it didn't boot again. Same game again.
So now I have JB installed, I'm going to root it now again, but I don't know what way I should go for doing the Recovery Part. I'm stuck on point 3 here
Any advices? btw thanks a lot until here, at least I made it half-way-through to JB now. Worst case I'd stay with that one at least.
I'm not entirely sure which threads you've been reading. Once you have the stock v20x ROM on your phone, just leave it alone for a few hours and make sure it is fully charged
After that, try to unlock the bootloader before doing anything else. If that works then you can worry about CWM and custom ROMs.
chrisus said:
Ok so I've flashed JB with the LG Updater (without batterie and volume down button pressed connecting to PC, than start the update -> meanwhile putting batterie back in)
JB worked just fine and I also don't had the problem with the kernel panic when booting with volume down and power button.
So I thought, everything fresh and also different, I might give the ROM Manager App again a try (after I rooted it that way: http://forum.xda-developers.com/showthread.php?t=2180688 )...well, wasn't that smart. After I installed the Recovery for P880 in the ROM Manager, i made a normal boot (just for sure), back in the app, i wanted to go into Recovery mode and again kernel panic, bit different this time cause it does a shutdown after 5 seconds^^
Anyway, this way it didn't work, from now on I also couldn't go into safe mode anymore, same kernel panic.
As this kind of recovery doesn't seem to work, I tried the "old" way with the "LG 4X Recovery" I mentioned before. After recovery installation i just wanted to boot normal aaaand nothing happened. It stayed in the LG screen. Restart and anything didn't help here so I backed back to v10H with previous methods. Now I just got a security error saying "morning call is empty", no idea what that means but I just did the same method for JB again.
Worked afterwards, so I wanted to try it without ROM Manager Recovery installed and just LG 4X Recovery, (after rooted again of course) and it didn't boot again. Same game again.
So now I have JB installed, I'm going to root it now again, but I don't know what way I should go for doing the Recovery Part. I'm stuck on point 3 here
Any advices? btw thanks a lot until here, at least I made it half-way-through to JB now. Worst case I'd stay with that one at least.
Click to expand...
Click to collapse
ok.
now i suppose you have a functional rooted JB 4.1.2 device.
from that you have to going on to rest of the steps to have CM installed on your device.so if it is not that (functional rooted JB device) is need to flash again JB and rooted again.
if you have the proper kdz file the tutorial for flasing is there: http://forum.xda-developers.com/showthread.php?t=2069723
and the tutorial for rooting device is there: http://forum.xda-developers.com/showthread.php?t=2180688&highlight=root+jb+4+1+2+
after that make some reboot of device to verify that:
1. the device boot to system normaly a few times (just let the device boot itself)
2. the device enter in S/W Upgrade Mode (with the device off, put the USB cable in device and PC or in device and AC adapter and press VOL DOWN + POWER) a few times
3. the device boot in Stock Recovery (with the device off, press VOL DOWN + POWER) a few time.
if you can manage to do this tree steps a few times normaly then you have a fully functional device and we go to next step that is Custom Recovery
the chance to make this steps without errors is more big if you start from scratch meaning fully wipe the device and flashing stock LG software on the device.
so, let as know here when you are ready...
gtdaniel said:
ok.
now i suppose you have a functional rooted JB 4.1.2 device.
from that you have to going on to rest of the steps to have CM installed on your device.so if it is not that (functional rooted JB device) is need to flash again JB and rooted again.
if you have the proper kdz file the tutorial for flasing is there: http://forum.xda-developers.com/showthread.php?t=2069723
and the tutorial for rooting device is there: http://forum.xda-developers.com/showthread.php?t=2180688&highlight=root+jb+4+1+2+
after that make some reboot of device to verify that:
1. the device boot to system normaly a few times (just let the device boot itself)
2. the device enter in S/W Upgrade Mode (with the device off, put the USB cable in device and PC or in device and AC adapter and press VOL DOWN + POWER) a few times
3. the device boot in Stock Recovery (with the device off, press VOL DOWN + POWER) a few time.
if you can manage to do this tree steps a few times normaly then you have a fully functional device and we go to next step that is Custom Recovery
the chance to make this steps without errors is more big if you start from scratch meaning fully wipe the device and flashing stock LG software on the device.
so, let as know here when you are ready...
Click to expand...
Click to collapse
he should unlock bootloader before flashing custom recovery.
so, dont use rom manager before you unlock bootloader, that's why you get kernel panics.