[Q] No OS installed - LG Optimus 2x

I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.

teddycypria said:
I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.
Click to expand...
Click to collapse
Hi Mate dont panic it´s easy to fix have u try any Nflash procedure yet ?

Try Stefans V28G via nflash:
http://forum.xda-developers.com/showthread.php?t=1986097
Direct link: http://d-h.st/PNj
Installation NVFlash version (under Windows): (internal SD will be wiped, /data partiton can be saved and restored with 2nd generation builds)
download the ROM, unpack it with WinRar, 7Zip or similar to any folder you want
take battery out of phone, press VOL + AND VOL - simulataneously, and while doing this plug the phone via USB to your PC
screen of phone remains black, this is normal, but you should hear a sound that you plugged the device. Probably you have to install APX drivers at this point if you are asked. They are included in the latest NVFlash builds. Tutorial on driver installation: http://www.modaco.com/topic/335416-n...-links-active/
assuming that you already installed APX drivers: run the "flash_windows.bat" file in the folder where you extracted the ROM
follow the instructions
That's already it Usually no complications to be feared. Enjoy!
Click to expand...
Click to collapse

You can connect phone to pc and copy a cm10, don't reboot phone, you must mount mass USB storage. Copy and flash: )
Inviato dal mio LG-P990 con Tapatalk 2

Will try it out
Thanks Domfis and Creison, I will try it out and see what happens. I hope it works :fingers-crossed: out cause I really do not wish to change my phone now that official ICS is out. If I manage to do this I will wait till summer to change my phone. Currently using my old nokia 3310

teddycypria said:
I had installed CM10 on my optimus 2x but I had a problem with the rom so I tried to flash another rom.
By mistake I wiped data, davlik-cache and everything else. So I don't have a backup. When I try to install another rom through TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot?
Please I only want to return to the original stock rom and upgrade from that to ICS. I found the guide on how to update to ICS so all I'm asking for is how to get out of this No OS installed trouble.
I appreciate alll effort.
Click to expand...
Click to collapse
Please ask all questions in Q&A. Thread moved there.

teddycypria said:
Currently using my old nokia 3310
Click to expand...
Click to collapse
ROFL!!! :laugh:

assistance plz
also getting same message.but when flashing rom says no os want to continue. any help would be great. still have stock rom.

infamous215 said:
also getting same message.but when flashing rom says no os want to continue. any help would be great. still have stock rom.
Click to expand...
Click to collapse
i suppose you're on the old bootloader? then just use AIO Toolkit ->> http://forum.xda-developers.com/showthread.php?t=2020737
Use Option 4, then you'll get the new bootloader and CWM installed. Afterwards just flash a ICS Rom or CM10(ICS BL) via CWM!

error
I have had LG P9920 Rooted phone and its working smoothly( I rooted my phone using cyanogenmod 10.2 and super user cmd ) .yesterday I try to install new kikkat os for my rooted lg phone . and I am download new recovery .img and zip file ,then I mounted twrp recovery .img file in command line in phone (dd-if ….)after mount that .img I restarted my phone and boot up twrp the I wiped data, davlik-cache and everything else. So I don't get a backup. Then system and android data I wiped.it error shown “e: unable to mount sdcard .system and fail to factory reset “…
I cant see internal memory its show 0mb.so I tried to several time wiped data and everything, but finally “TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot? “
Please anyone who can have same idea above this matter please help me, I appreciate all effort.

mahesh dimuthu said:
I have had LG P9920 Rooted phone and its working smoothly( I rooted my phone using cyanogenmod 10.2 and super user cmd ) .yesterday I try to install new kikkat os for my rooted lg phone . and I am download new recovery .img and zip file ,then I mounted twrp recovery .img file in command line in phone (dd-if ….)after mount that .img I restarted my phone and boot up twrp the I wiped data, davlik-cache and everything else. So I don't get a backup. Then system and android data I wiped.it error shown “e: unable to mount sdcard .system and fail to factory reset “…
I cant see internal memory its show 0mb.so I tried to several time wiped data and everything, but finally “TWRP is says that it failed and afterwards it says No OS installed, Are you sure you want to reboot? “
Please anyone who can have same idea above this matter please help me, I appreciate all effort.
Click to expand...
Click to collapse
Since data is lost anyway, try running AIO toolkit to reflash the bootloader which also fixes recovery and partitions.

Related

[Q] How do you Remove CyanogenMod7 nightly.

Hi guys, first of all I'm a total noob.. first android phone first time rooting, and installing a mod... I should of done more research before installing the CyanogenMod on my phone because now its all buggy and i feel it worked better before. If some one can help me get my phone back to 2.2 that would great.
-Do i fist install a stock rom from http://forum.xda-developers.com/showthread.php?p=12890619#post12890619
-I'm located in the philippines and I dont see any rom for my country all i remember is that I had v10b.
-im not sure if my phone is using ext3/or ext4 but i think its ext4 since im using cyanogenmod. do i need to set it back to ext3 first?
I backed up my phone using nvflash and nandflash.
-first thing i tried before was: wipe data/factory rest, wipe cache partition, wipe dalvik cache and then hit restore. afterwards i booted my phone and it was stuck at the loading bar. so tried the same steps again but nothing so i loaded cm7 zip again my my phone booted up. how do i take this off can someone help please.
i really dont know what im doing..
Follow this
http://forum.xda-developers.com/showthread.php?t=1007825
it will restore your phone back to stock
after nvflashing v10b back on your phone, you can restore your backup if you like to. root and clockworkmod must be installed first though. To install clockworkmod you can also download the clockworkmod recovery img and replace recovery.img in the nvflash files. this will install cwm directly and you don't need to root your device.
You don't need to convert back to ext3. I'm not even sure if cm7 uses ext4...
The reason why you are not able to restore your backup is because of some bug in cwm with restoring boot.img I think..
oscarlg said:
Hi guys, first of all I'm a total noob.. first android phone first time rooting, and installing a mod... I should of done more research before installing the CyanogenMod on my phone because now its all buggy and i feel it worked better before. If some one can help me get my phone back to 2.2 that would great.
-Do i fist install a stock rom from http://forum.xda-developers.com/showthread.php?p=12890619#post12890619
-I'm located in the philippines and I dont see any rom for my country all i remember is that I had v10b.
-im not sure if my phone is using ext3/or ext4 but i think its ext4 since im using cyanogenmod. do i need to set it back to ext3 first?
I backed up my phone using nvflash and nandflash.
-first thing i tried before was: wipe data/factory rest, wipe cache partition, wipe dalvik cache and then hit restore. afterwards i booted my phone and it was stuck at the loading bar. so tried the same steps again but nothing so i loaded cm7 zip again my my phone booted up. how do i take this off can someone help please.
i really dont know what im doing..
Click to expand...
Click to collapse
same thing had happened with me...
not a sigle CWM bakup working,no other zip working through CWM...
i tried with smartflash as well as with NVflash,but the results were same.
then one of the XDA user from this forum adviced me to use onther usb port(preefrably backside one)
and just repeat the NVflash process and guess what !!!!
finally i have managed to get rid of CM7 !!!! and now m back on v10b !!!
try it out,it should work,cheers
thank you
Thanks for the replies guys ill give it a go right now and let you know what happen.
Kickasskev said:
Follow this
http://forum.xda-developers.com/showthread.php?t=1007825
it will restore your phone back to stock
Click to expand...
Click to collapse
i followed the instructions on that page but when i get to the part where i click on nvflash a black screen like cmd pops up then disappears. i tried running as administrator but no go same thing.. am i missing something?
oscarlg said:
i followed the instructions on that page but when i get to the part where i click on nvflash a black screen like cmd pops up then disappears. i tried running as administrator but no go same thing.. am i missing something?
Click to expand...
Click to collapse
same thing had happened with me...
not a sigle CWM bakup working,no other zip working through CWM...
i tried with smartflash as well as with NVflash,but the results were same.
then one of the XDA user from this forum adviced me to use onther usb port(preefrably backside one)
and just repeat the NVflash process and guess what !!!!
finally i have managed to get rid of CM7 !!!! and now m back on v10b !!!
try it out,it should work,cheers
[CHANGE THE USB PORT AND IT WILL WORK FOR SURE]

[Q] rom manager recovery mode

Hi guys,
posting here as i've tried searching and nothing comes up (anything that does has out dated download links or just doesnt apply)
Problem: after rooting my phone when i try to use rom manager, nothing happens. I've bout CWM touch, I've downloaded the normal CWM but when i try to either load cyanogen from the zip on my sd card it does nothing, it prompts me to back up, wipe etc but then when it says it will boot to recovery nothing happens. Also tried other apps to reboot and none of them work
any advice on this?
I've seen a cmd prompt set of instructions for Superoneclick, but im lost as to the getting to the directory through cmd tool.
any help would be greatly appreciated
phone specs
Android version 2.3.4
XMM6160
kernel: 2.6.35
build #: GRJ22
Software version: V20b
rooted: yes
Hi , if you have CWM touch, install QtADB on your computer => http://qtadb.wordpress.com/download/
reboot recovery from menu
or install android sdk and in a command prompt : adb reboot recovery
or at reboot OB, press G-key
Did you flashed recovery? First option in rom manager.
Trolling in the deep
yep clicked the first option, the prompt for the device comes up, i hit it, then the bar loads... then "succes".
then when i try to install from SD card nothing happens
Thankyou YkZ_1967 !!! However I installed qtADB and got reboot recovery, but it just reset the phone. Any ideas?
eddyd42 said:
yep clicked the first option, the prompt for the device comes up, i hit it, then the bar loads... then "succes".
then when i try to install from SD card nothing happens
Thankyou YkZ_1967 !!! However I installed qtADB and got reboot recovery, but it just reset the phone. Any ideas?
Click to expand...
Click to collapse
that's depend what you want to do, if you install custom rom, reboot in recovery, wipe data/cache / dalvik , then install zip from sdcard and choose your rom, then after success flash, reboot now.
I want to install cyanogen but when i try to load from sd card in rom manager it wont go into boot recovery.
when i managed to get it to boot recovery in the way you suggested it only reset the phone.
I feel like i'm missing something, did not think it would be this difficult
eddyd42 said:
I want to install cyanogen but when i try to load from sd card in rom manager it wont go into boot recovery.
when i managed to get it to boot recovery in the way you suggested it only reset the phone.
I feel like i'm missing something, did not think it would be this difficult
Click to expand...
Click to collapse
That means actually no cwm recovery installed yet so it will reset your phone everytime you want to enter recovery mode. This is the best thing you should do : reroot your phone like in this guide http://forum.xda-developers.com/showthread.php?t=1487105. It will automatically installing cwm recovery touch. After that, you can go to recovery mode by using quick boot (download it from playstore). Therefor, you can start flashing roms, but remember don't use rom manager, coz it wont detect your cwm recovery touch and forcing you to flash the non-touch cwm recovery.
Sent from my MB860
This is the root method I recommend : http://forum.xda-developers.com/showpost.php?p=22304591&postcount=91.
Sent from my MB860
follow the method with smartflashtools and v20.x patched with cwm touch by SnegovikRZN , then you have OB rooted with CWM Touch, you will be able to install CM7 and unbrick your phone.
Thank you thank you thank you!!!!
Got it to work that way all i had to do was flash that then clear data/wipe cache/wipe dalvik and then load from sd card and it works! very happy now
how can I boot into recovery , from a turned off phone
bimasakti85 said:
This is the root method I recommend : http://forum.xda-developers.com/showpost.php?p=22304591&postcount=91.
Sent from my MB860
Click to expand...
Click to collapse
dude d link for PATCHED_LGP970AT-00-V20n-262-XXX-DEC-31-2011%2B0_AP.7z iz not working pls can u gimme another source for this file
eddyd42 said:
Hi guys,
posting here as i've tried searching and nothing comes up (anything that does has out dated download links or just doesnt apply)
Problem: after rooting my phone when i try to use rom manager, nothing happens. I've bout CWM touch, I've downloaded the normal CWM but when i try to either load cyanogen from the zip on my sd card it does nothing, it prompts me to back up, wipe etc but then when it says it will boot to recovery nothing happens. Also tried other apps to reboot and none of them work
any advice on this?
I've seen a cmd prompt set of instructions for Superoneclick, but im lost as to the getting to the directory through cmd tool.
any help would be greatly appreciated
phone specs
Android version 2.3.4
XMM6160
kernel: 2.6.35
build #: GRJ22
Software version: V20b
rooted: yes
Click to expand...
Click to collapse
after you try to install zip from SD card and fails, check to see if it shows: error can't mount /sdcard. or something like that. ???
if it syas so. try a different recovery like TWRP, i was having a problem, similar to what you describe, an hour ago while rooting and flashing my mother's in law OB, i flashed the CWMT recovery and for some reason it couldn't load the ZIP from SD and it showed this error, so i flashed TWRP recovery and then it was fine, i manage to flash marvel rom and all was good.
hope it helps.
---------- Post added at 04:40 PM ---------- Previous post was at 04:34 PM ----------
bimasakti85 said:
That means actually no cwm recovery installed yet so it will reset your phone everytime you want to enter recovery mode. This is the best thing you should do : reroot your phone like in this guide http://forum.xda-developers.com/showthread.php?t=1487105. It will automatically installing cwm recovery touch. After that, you can go to recovery mode by using quick boot (download it from playstore). Therefor, you can start flashing roms, but remember don't use rom manager, coz it wont detect your cwm recovery touch and forcing you to flash the non-touch cwm recovery.
Sent from my MB860
Click to expand...
Click to collapse
you are right, but i had a problem, the CWM was flash and ob went into CWM recovery mode, but for some reason it stated an error that it cannot mount /sdcard, so i tried via recovery menu to mount sd card, didnt work, then i tried again to flash a different version of CWM, same error, then i went and flshed TWRP and it worked.
i wonder if its a specific OB bug, bcoz this problem happen on my mother in law OB and on my OB it was rooting and flashing just fine, exactly like the guide.

EDIT: SOLVED :D 10$ for whoever can help me with Cyanogen

I am currently running V20a EURxx the one that everyone was downloading a while back, via the lg suite hack..
I have installed the all-in-one root tool and "think" i have rooted it but i found it to be very confusing
Cyanogenmod 10.1 (the one that came out yesterday) is what i want. http://forum.xda-developers.com/showthread.php?t=2238040
so.....
What are the steps i have to take? I have rooted and done custom roms in the past but am still kind of a n00b.. Please help a fellow XDA member
ragdoll20 said:
I am currently running V20a EURxx the one that everyone was downloading a while back, via the lg suite hack..
I have installed the all-in-one root tool and "think" i have rooted it but i found it to be very confusing
Cyanogenmod 10.1 (the one that came out yesterday) is what i want. http://forum.xda-developers.com/showthread.php?t=2238040
so.....
What are the steps i have to take? I have rooted and done custom roms in the past but am still kind of a n00b.. Please help a fellow XDA member
Click to expand...
Click to collapse
You have the steps right there in the first post. I'll leave some explanations
You need cwm (clockwordmod recovery) first. The easiest way to install it is via rommanager https://play.google.com/store/apps/details?id=com.koushikdutta.rommanager&hl=en. Use rommanager to flash cwm.
Once cwm is installed. Then proceed.
1. Place cm-10.1-20130416-NIGHTLY-p880.zip and gapps-jb-20130301-signed.zip in to your internal sdcard
- Download cm http://get.cm/get/jenkins/25315/cm-10.1-20130417-NIGHTLY-p880.zip
- Download gapps http://goo.im/gapps/gapps-jb-20130301-signed.zip
- Move the files to your internal sdcard
You need to be in cwm recovery for the next steps. To do this you need to power off your phone, Hold VolUp and Power Button at the same time to power on your phone. Wait till you get to cwm recovery console.
2. BACKUP ALL YOUR DATA with CWM Recovery
- In cwm console select backup. use vol+/vol- to navigate through the menus and use power button to select the option.
3. In CWM Recovery make wipe data/factory reset, wipe cache partition, wipe dalvik cache, format system
- These options can also be found in cwm
4. Flashcm-10.1-20130416-NIGHTLY-p880.zip from sdcard
- Still in cwm. Select Install zip from sdcard -> choose zip from sdcard -> navigate to where you put cm-10.1-20130416-NIGHTLY-p880.zip
5. Gapps-jb-20130301-signed.zip from sdcard
- Still in cwm. Select Install zip from sdcard -> choose zip from sdcard -> gapps-jb-20130301-signed.zip
6. Done
- Reboot
I'm not an expert, but that is how I did it.
ragdoll20 said:
I am currently running V20a EURxx the one that everyone was downloading a while back, via the lg suite hack..
I have installed the all-in-one root tool and "think" i have rooted it but i found it to be very confusing
Cyanogenmod 10.1 (the one that came out yesterday) is what i want. http://forum.xda-developers.com/showthread.php?t=2238040
so.....
What are the steps i have to take? I have rooted and done custom roms in the past but am still kind of a n00b.. Please help a fellow XDA member
Click to expand...
Click to collapse
Actually, the first thing you must do is unlock the bootloader. For now, the only sure versions are EUR-XXX (and to be clear, it's not enough that you installed the Euro-Open FW, your phone must have the software identified as EUR-XXX - for instance, german sim-free phones will be identified as 262-000, even if they install Euro-Open FW, and they don't seem to be unlockable as of yet).
So, check the software version (at system settings -> phone info -> software information -> software version) and, if it's Eur-XXX or something similar, you can unlock the bootloader.
If you're using the all-in-one tool, you just have to follow the instructions on it's thread to unlock the bootloader.
Only then can you install CM with the method akosierwin provided.
Okay i followed the steps and installed clockwork mod via the rom manager...BUT!
If i boot into recovery it says: LG Security,ERROR boot image signature, 5 seconds shut down something something...
Whats that all about? thanks for the fast reply's!
you need to unlock your bootloader first
Yep, unlock your bootloader first.
Here are the steps for that
http://forum.xda-developers.com/showthread.php?t=2224020
Okay i unlocked the bootloader ( when im in the S/W upgrade screen it says unlocked at the top..) i have clockworkmod installed but i cant install anything... All the zips give: assert failed,status 7.. Now im in a bootloop. I can go into clockword mod but thats about it. I have tried other zips than the Nightlys from cyanogen but nothing works. WTF
ragdoll20 said:
Okay i unlocked the bootloader ( when im in the S/W upgrade screen it says unlocked at the top..) i have clockworkmod installed but i cant install anything... All the zips give: assert failed,status 7.. Now im in a bootloop. I can go into clockword mod but thats about it. I have tried other zips than the Nightlys from cyanogen but nothing works. WTF
Click to expand...
Click to collapse
In the general section there's a thread callled flashable CM 10.1 FIX P880 (or similar).
The status 7 error occurs because of a little line (p880 instead of x3 for device recognition).
Install the CM from there or try to reinstall CWM through ROM Manager (should be latest and working)
And don't forget the GApps (from goo.im or the thread with the fixed CM)
EDIT: Link to the fix http://forum.xda-developers.com/showthread.php?t=2238814
ImInMunichBitch said:
In the general section there's a thread callled flashable CM 10.1 FIX P880 (or similar).
The status 7 error occurs because of a little line (p880 instead of x3 for device recognition).
Install the CM from there or try to reinstall CWM through ROM Manager (should be latest and working)
And don't forget the GApps (from goo.im or the thread with the fixed CM)
EDIT: Link to the fix http://forum.xda-developers.com/showthread.php?t=2238814
Click to expand...
Click to collapse
Thanks a bunch! I didnt find that thread, i will try it now!
ImInMunichBitch said:
In the general section there's a thread callled flashable CM 10.1 FIX P880 (or similar).
The status 7 error occurs because of a little line (p880 instead of x3 for device recognition).
Install the CM from there or try to reinstall CWM through ROM Manager (should be latest and working)
And don't forget the GApps (from goo.im or the thread with the fixed CM)
EDIT: Link to the fix http://forum.xda-developers.com/showthread.php?t=2238814
Click to expand...
Click to collapse
IT WORKED!! YOU JUST MADE MY DAY! PM me and i'll give your reward :laugh:
ragdoll20 said:
IT WORKED!! YOU JUST MADE MY DAY! PM me and i'll give your reward :laugh:
Click to expand...
Click to collapse
I'm glad that I helped you, but I really don't want some kind of reward
Just click the thanks button and donate to our developers if you want to give a reward
to the people who deserve it
In the steps for installing CM, there is the advice to do a nandroid backup of the existing system!
Is it possible, after wiping and installing CM 10.1, to restore only data, so I would have all my Apps and Userdata back, or would this cause problems with CM 10.1 settings?
Has someone tried this already?
Is CWM after wiping and installing still present?
Bogeyof said:
In the steps for installing CM, there is the advice to do a nandroid backup of the existing system!
Is it possible, after wiping and installing CM 10.1, to restore only data, so I would have all my Apps and Userdata back, or would this cause problems with CM 10.1 settings?
Has someone tried this already?
Is CWM after wiping and installing still present?
Click to expand...
Click to collapse
CWM ist still installed after CM 10.1 flash.
If you want to have your apps + data back install titanium,
though I don't really know about restoring a backup on CM
(but it's a different android so I think it wouldn't work)
ImInMunichBitch said:
CWM ist still installed after CM 10.1 flash.
If you want to have your apps + data back install titanium,
though I don't really know about restoring a backup on CM
(but it's a different android so I think it wouldn't work)
Click to expand...
Click to collapse
Thanks, but I tried with Titanium Backup on V20a (after wiping and installing V20a over V10h) and not all Apps was correctly restored, settings of system, all the screens of Nova Launcher, the Widgets and their settings and many more was wrong or not restored, so I tried with restoring only "data" from CWM-Backup and it works perfectly...
Anyone tried this on CM 10.1?
Glad that it worked
Didn't know that.
Sent from my LG-P880

[Q] Unable to start WiFi after flashing CWM 6.0.2.8 and 6.0.3.1 on custom JB ROM

Hello All,
I am on stock v4.1.2, flashed myself.
Now I want to move on to custom ROM.
My current stock ROM is rooted, and I have also unlocked my bootloader.
Now when I want to install custom ROM, I need to flash CWM, and when I do (tried v6.2.8 and v6.0.3.1), and install any ROM, my WiFi becomes unresponsive (failed to turn on). When I flash V20A back, everything turns normal.
I also gone through http://forum.xda-developers.com/showthread.php?t=2180138&page=43, and install the unsecure boot image after installing CWM 6028, but this make my custom rom hang on startup (on bootload screen).
Kindly help me out.
I have search a lot in the P880 forum, and didn't find any help regarding to this problem.
[email protected] said:
Hello All,
I am on stock v4.1.2, flashed myself.
Now I want to move on to custom ROM.
My current stock ROM is rooted, and I have also unlocked my bootloader.
Now when I want to install custom ROM, I need to flash CWM, and when I do (tried v6.2.8 and v6.0.3.1), and install any ROM, my WiFi becomes unresponsive (failed to turn on). When I flash V20A back, everything turns normal.
I also gone through http://forum.xda-developers.com/showthread.php?t=2180138&page=43, and install the unsecure boot image after installing CWM 6028, but this make my custom rom hang on startup (on bootload screen).
Kindly help me out.
I have search a lot in the P880 forum, and didn't find any help regarding to this problem.
Click to expand...
Click to collapse
i dont understand what the recovery has to do with the wifi. recovery is just an interface to easy install something, copy paste , edit , change permissions , etc , things we do using adb commands. it is just an environment. its something else u are doing wrong there.
<EDIT> yea i saw the thread on your link. others seem to have same problem but with the unsecure boot. why do u need unsecure boot if the bootloader is unlocked ? just install teamwin recovery or cwm recovery and the rom u want.
kessaras said:
i dont understand what the recovery has to do with the wifi. recovery is just an interface to easy install something, copy paste , edit , change permissions , etc , things we do using adb commands. it is just an environment. its something else u are doing wrong there.
<EDIT> yea i saw the thread on your link. others seem to have same problem but with the unsecure boot. why do u need unsecure boot if the bootloader is unlocked ? just install teamwin recovery or cwm recovery and the rom u want.
Click to expand...
Click to collapse
Well, I did. And it all went fine, and I am able to install various custom ROMs, and after I install custom ROM, my WiFi becomes unresponsive. I am completely at lost. I also tried MIUI v5 which is non-CM10.2 based, and it also showed the same issue.
Here are my steps to install a custom ROM.
- Currently I am on my V20A stock ROM.
- Root the stock ROM using the All-In-One-Toolkit v1.4.1
- Flush the CWM 6031 using ADB as
Code:
su
cat /mnt/sdcard/recovery.img > /dev/block/mmcblk0p1
sync
- After reboot, my device has the CWM.
- Copy custom ROM zip files to my device, and reboot to recovery
- Wipe out by data and cache
- Install ROM
thats it
And when I boot into the new custom ROM, my WiFi do not work.
Please help.
[email protected] said:
Well, I did. And it all went fine, and I am able to install various custom ROMs, and after I install custom ROM, my WiFi becomes unresponsive. I am completely at lost. I also tried MIUI v5 which is non-CM10.2 based, and it also showed the same issue.
Here are my steps to install a custom ROM.
- Currently I am on my V20A stock ROM.
- Root the stock ROM using the All-In-One-Toolkit v1.4.1
- Flush the CWM 6031 using ADB as
Code:
su
cat /mnt/sdcard/recovery.img > /dev/block/mmcblk0p1
sync
- After reboot, my device has the CWM.
- Copy custom ROM zip files to my device, and reboot to recovery
- Wipe out by data and cache
- Install ROM
thats it
And when I boot into the new custom ROM, my WiFi do not work.
Please help.
Click to expand...
Click to collapse
not exactly.
And here are my steps to install a custom ROM (if currently I am on my V20A stock ROM)
1. Root the stock ROM using the All-In-One-Toolkit v1.4.1
2. Unlock bootloader using All-In-One-Toolkit v1.4.1 or manually like this.
3. Flash the CWM 6.0.4.5 or 6.0.4.4 or TeamWin Recovery
4. Reboot the device in recovery.
5. Enter ADB sideload and install custom rom or using ADB bootloader or using ADB copy the rom in sd card and use install in recovery.
6. Wipe data and cache and reboot system.
<<STEPS DESCRIBED IN HELP SECTION - FREQUENTLY ASKED QUESTIONS>> ( by the way those must be updated too )
kessaras said:
not exactly.
And here are my steps to install a custom ROM (if currently I am on my V20A stock ROM)
1. Root the stock ROM using the All-In-One-Toolkit v1.4.1
2. Unlock bootloader using All-In-One-Toolkit v1.4.1 or manually like this.
3. Flash the CWM 6.0.4.5 or 6.0.4.4 or TeamWin Recovery
4. Reboot the device in recovery.
5. Enter ADB sideload and install custom rom or using ADB bootloader or using ADB copy the rom in sd card and use install in recovery.
6. Wipe data and cache and reboot system.
<<STEPS DESCRIBED IN HELP SECTION - FREQUENTLY ASKED QUESTIONS>> ( by the way those must be updated too )
Click to expand...
Click to collapse
I did wipe the data and cache after installing the custom ROM. But the result is the same; No WiFi response.
However, I always copy my custom ROMs by mounting my phone through USB to my Win8 laptop, and then copy the ROM file through windows explorer. And then install the ROM from the CWN recovery. Thus do not use ADB for copying files, or installing custom ROM as mentioned above. If this is the main issue reason, then advice.
Also I haven't tried TWRP till yet. Will do now. Till then, what else I can do.
Thanks for the quick replies.
i dont know what else you may doing wrong then. one was the insecure boot which is useless since u have unlocked the bootloader and the other that u had flash older version of cwm recovery. maybe compatibility issue with that version of cwm rec ? test and see.
format system also, when installing a new rom, not just data, cache & dalvik
kessaras said:
i dont know what else you may doing wrong then. one was the insecure boot which is useless since u have unlocked the bootloader and the other that u had flash older version of cwm recovery. maybe compatibility issue with that version of cwm rec ? test and see.
Click to expand...
Click to collapse
One piece of detail I missed to mentioned in my case previously was that, I unlocked my phone using the method mentioned in the thread http://forum.xda-developers.com/showthread.php?t=2263627 as I was unable to unlock using the official method.
After I unlock my bootloader, I have flashed V20A KDZ several times, and each time the SW Upd mode show me that my bootloader status is unlocked. Thus after first attempt of unlocking, I never came across need to unlocked my bootloader again as each time when I do the KDZ flash, I get the bootloader status as unlocked. And after each flash of KDZ, I was able to install CWM and custom ROMs, and boot into them successfully.
Is this something causing the issue?
[email protected] said:
One piece of detail I missed to mentioned in my case previously was that, I unlocked my phone using the method mentioned in the thread http://forum.xda-developers.com/showthread.php?t=2263627 as I was unable to unlock using the official method.
After I unlock my bootloader, I have flashed V20A KDZ several times, and each time the SW Upd mode show me that my bootloader status is unlocked. Thus after first attempt of unlocking, I never came across need to unlocked my bootloader again as each time when I do the KDZ flash, I get the bootloader status as unlocked. And after each flash of KDZ, I was able to install CWM and custom ROMs, and boot into them successfully.
Is this something causing the issue?
Click to expand...
Click to collapse
Now, I have repeated using CWM 6.0.4.5 and TWRP, and no breakthrough .... Starting to lose hope ... Help !!!
sorry , personally i dont know what else u may doing wrong there . and no it doesnt matter which way u unlock the phone, but since u unlock it , it stays that way until u lock it.
at least stock rom is working fine ? if that works fine there, then just install only custom kernel, do your tweaks, install another launcher and then delete the default, etc. u can do any modification u like to the stock one to make it look and work the way u want it.
kessaras said:
sorry , personally i dont know what else u may doing wrong there . and no it doesnt matter which way u unlock the phone, but since u unlock it , it stays that way until u lock it.
at least stock rom is working fine ? if that works fine there, then just install only custom kernel, do your tweaks, install another launcher and then delete the default, etc. u can do any modification u like to the stock one to make it look and work the way u want it.
Click to expand...
Click to collapse
Does it help if I installed a custom kernel on my custom ROM (with WiFi issue). My understanding is that the WiFi driver is compiled inside the kernel. So changing the kernel might reduce the issue. What do you think? If yes, then kindly advice me on which kernel should I install on my till now custom ROM MIUI v5 http://en.miui.com/download-79.html.
[email protected] said:
Does it help if I installed a custom kernel on my custom ROM (with WiFi issue). My understanding is that the WiFi driver is compiled inside the kernel. So changing the kernel might reduce the issue. What do you think? If yes, then kindly advice me on which kernel should I install on my till now custom ROM MIUI v5 http://en.miui.com/download-79.html.
Click to expand...
Click to collapse
a developer would never release a rom in public with wifi issues by default and since i have already tested all roms available before i end up to one, i can say that they all worked , but only had small bugs on homescreen. really i dont know what you are doing wrong and not even a teamviewer connection wouldnt help in this case. but on stock your phone works fine ? only in a custom rom u have this issue ?
<<EDIT>> did you also do a full format before going to another rom ? there is a choice in teamwin recovery ( dont know if its in cwm also ) to format data. careful i dont mean to wipe everything you see because you will remove the recovery too and u will have to flash it back. the format option deletes everything besides the recovery. if you dont format before you go to a totally different rom, then you maybe have issues. especially when going from stock to custom, differences are huge. you must format before flashing. and dont forget the gapps, if they are not inluded in rom. ( in your case miui there must have them inside, because i see its 256 mb+)
kessaras said:
a developer would never release a rom in public with wifi issues by default and since i have already tested all roms available before i end up to one, i can say that they all worked , but only had small bugs on homescreen. really i dont know what you are doing wrong and not even a teamviewer connection wouldnt help in this case. but on stock your phone works fine ? only in a custom rom u have this issue ?
<<EDIT>> did you also do a full format before going to another rom ? there is a choice in teamwin recovery ( dont know if its in cwm also ) to format data. careful i dont mean to wipe everything you see because you will remove the recovery too and u will have to flash it back. the format option deletes everything besides the recovery. if you dont format before you go to a totally different rom, then you maybe have issues. especially when going from stock to custom, differences are huge. you must format before flashing. and dont forget the gapps, if they are not inluded in rom. ( in your case miui there must have them inside, because i see its 256 mb+)
Click to expand...
Click to collapse
YES. When I flashed stock V20A, I never had issues with Wifi. Its when I install custom ROM, and any custom ROM.
So I suppose, either there is something wrong in my installing method, or in my stock ROM that won't allow WiFi to work on any custom ROM. But how much influential will be the stock ROM if it is being replaced by a custom ROM?
Well, I haven't formated before I install any custom ROM, as it was not instructed in the forums. But I will do that now, and let you know the results shortly.
Thanks again for the replies.
[email protected] said:
Well, I haven't formated before I install any custom ROM, as it was not instructed in the forums.
Click to expand...
Click to collapse
yea some informations are always missing from the instructions generally , but this is a developer forum , so it doesnt always include informations that are 100% well known to be done. So format and install again and tell me if its everything ok.
kessaras said:
yea some informations are always missing from the instructions generally , but this is a developer forum , so it doesnt always include informations that are 100% well known to be done. So format and install again and tell me if its everything ok.
Click to expand...
Click to collapse
Can you direct me how to install a custom ROM using ADB? Since when I format my /data, all of my custom roms that I copied will get deleted. So the only remaining option is to copy them using ADB.
[email protected] said:
Can you direct me how to install a custom ROM using ADB? Since when I format my /data, all of my custom roms that I copied will get deleted. So the only remaining option is to copy them using ADB.
Click to expand...
Click to collapse
What?????
Why would wiping your /data folder on internal storage delete your custom ROMs? Surely you keep them on your external SD-Card?
[email protected] said:
Can you direct me how to install a custom ROM using ADB? Since when I format my /data, all of my custom roms that I copied will get deleted. So the only remaining option is to copy them using ADB.
Click to expand...
Click to collapse
you dont need to copy it . u can open adb sideload from recovery and on pc use command : adb sideload [path/filename of rom.zip]
SimonTS said:
What?????
Why would wiping your /data folder on internal storage delete your custom ROMs? Surely you keep them on your external SD-Card?
Click to expand...
Click to collapse
So you are saying that, I copy them to external_sd, and then do the data format. Ok ... Will do and let you know.
BTW, I also found V20B. I will start with this stock rom instead of V20A. This might improves some thing.
[email protected] said:
So you are saying that, I copy them to external_sd, and then do the data format. Ok ... Will do and let you know.
BTW, I also found V20B. I will start with this stock rom instead of V20A. This might improves some thing.
Click to expand...
Click to collapse
AT LAST .... FIXED ...
I did two things, V20B, and format /system, /data before installing new ROM. So my steps were:
1) Flush V20B instead of V20A
2) After rooting, and installed CWM 6044 touch, copy custom ROM MIUI to external SDCARD
3) Reboot into recovery, and format /system, /data, and /cache partitions
4) Install custom ROM from external SDCARD
5) Wipe data and cache
6) Reboot into the new world
:good: formatting did the work sorry i didnt think of it earlier.

[Q] Stuck at CM recovery after accepting newest official software update

Hi, device is rooted, and clockworkmod recovery 6.0.4.5 installed.
ROM is JB, the official update from LG. Today device reported there is an update to the installed firmware.
I rebooted in CM recovery, took a nandroid backup, booted, and accepted to download the official update to my official JB rom. After downloading I was asked to reboot (in order to install), and the phone reboots to the CM recovery.
From there I don't know what to do. I have tried rebooting, but again find myself to the CM recovery. I have tried "reboot to bootloader" and get stuck at the LG boot screen logo with the message "Now Ready!" in tiny white letters on the upper left corner.
I would try "install zip" but I don't know where the downloaded update is (if it even is in an acceptable zip format)
Phone isn't bricked, I guess I can always restore from the recently taken backup, but I really would like to know if there is a way to install this update.
Thank you
http://forum.xda-developers.com/showthread.php?p=50645445
Could you please please please try to search the next time I've seen this question for probably 3-4 times
Sent from my LG-P880 using xda app-developers app
you can't ota over unlocked bl/cwm, you must flash update manually
moneyvirus said:
http://forum.xda-developers.com/showthread.php?p=50645445
Could you please please please try to search the next time I've seen this question for probably 3-4 times
Click to expand...
Click to collapse
You're right, but you know, sometimes you just can't nail the right keywords especially if its not your native language. I searched, but obviously not good enough.
Rudjgaard said:
you can't ota over unlocked bl/cwm, you must flash update manually
Click to expand...
Click to collapse
Sadly, this seems to be the case.. bummer.
Thanks everyone
Not even my nandroid backup can help me get to where I was before? So much for nandroid being the ultimate backup, a "snapshot image" of the device...
So, what if, I use CM recovery to install a custom rom, and then restore from my nandroid backup (being the official JB) ?
Flash with kdz flasher original ROM then flash cwm you can put back your backup. I think the problem starts that the update pushes something in the boot section that is expecting an other (read original) recovery . when you installed cwm it boots up cwm so that's why an nandroid backup doesn't work I think ( to be honest I'm not 100% sure this is correct)
Sent from my LG-P880 using xda app-developers app
I can't even flash cyanogenmod???
I downloaded latest stable build, copied it to sd card, selected it from the CM recovery ("install zip"), installed fine, reboot, still stuck at CM recovery!!!
What gives?
EPa said:
I can't even flash cyanogenmod???
I downloaded latest stable build, copied it to sd card, selected it from the CM recovery ("install zip"), installed fine, reboot, still stuck at CM recovery!!!
What gives?
Click to expand...
Click to collapse
Have you yet followed the advice and installed the KDZ?
Trying to avoid that, as it seems too much work for a phone that was working fine, and stuck to recovery due to some silly boot flag or something.
Saw it as a chance to try cyanogenmod. But it seems having CM recovery and the cyanogenmod rom on the sd card won't cut it! Talk about failure..
EPa said:
Trying to avoid that, as it seems too much work for a phone that was working fine, and stuck to recovery due to some silly boot flag or something.
Saw it as a chance to try cyanogenmod. But it seems having CM recovery and the cyanogenmod rom on the sd card won't cut it! Talk about failure..
Click to expand...
Click to collapse
I don't think you will have a choice. If you created the nandroid backup on your SD card then you aren't going to lose it, so just flash the KDZ, root again and install your backup, or accept the LG update and rebuild all your software again.
Yes, one thing is for sure. I had to install the KDZ to be able to proceed with anything..
It's just funny having a working CWM recovery and a cyanogen rom on the device and after flashing it, still not having a device that boots. A "recovery"/flash tool, should be able to "recover" from such a situation..
EPa said:
Yes, one thing is for sure. I had to install the KDZ to be able to proceed with anything..
It's just funny having a working CWM recovery and a cyanogen rom on the device and after flashing it, still not having a device that boots. A "recovery"/flash tool, should be able to "recover" from such a situation..
Click to expand...
Click to collapse
You can't blame the recovery. It is clearly stated many, many times that you should never attempt an official OTA update with a non-standard (rooted or recovery installed) device. On other devices you could even hard-brick AFAIK, so consider yourself lucky that you only had to reflash a KDZ and start again.
For restoring stock rom use this: http://forum.xda-developers.com/showthread.php?t=2682146 I can confirm it works and it is (very) easy.
Yes that's what I used and I also confirm it works and is very easy.

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