(Q) downgrade from v30 to v20 - LG Optimus 2x

Is it possible to make a downgrade to my rom só i can restart to use new cm nightlies
Greetings
Sent from my LG-P990 using Tapatalk 2

I Think i found the awnser, i Will use smartflash (mainly this was my doubt. I didn't Know if This would damage the Phone)
Sent from my LG-P990 using Tapatalk 2

rolling_stone said:
I Think i found the awnser, i Will use smartflash (mainly this was my doubt. I didn't Know if This would damage the Phone)
Sent from my LG-P990 using Tapatalk 2
Click to expand...
Click to collapse
I dont think you can just downgrade with smartflash tools. V30 has a locked ICS bootloader if im correct and apparently my O2X bootlooped when i did that. Now i stuck and even NVFLASH fails

i downgraded my v28g to v20s with smartflash

Thats the answer....
Use Nvflash i downgraded many times from v28a,g,v30a down to v20 or cyanogen mod Its the savest way.
Im form germany... only found the german forum but the zips of nvflash work very well use it:
http://www.handy-faq.de/forum/lg_op...timus_speed_p990_original_rom_2x_flashen.html

DarkFantasy6 said:
Thats the answer....
Use Nvflash i downgraded many times from v28a,g,v30a down to v20 or cyanogen mod Its the savest way.
Im form germany... only found the german forum but the zips of nvflash work very well use it:
http://www.handy-faq.de/forum/lg_op...timus_speed_p990_original_rom_2x_flashen.html
Click to expand...
Click to collapse
I think it might be time for me to throw away my P990 because im not sure if the VOL UP button actually works or is it the PC problem.
---------- Post added at 07:24 PM ---------- Previous post was at 07:05 PM ----------
max21ns said:
i downgraded my v28g to v20s with smartflash
Click to expand...
Click to collapse
Anyway although I doubt smartflash could work for my case, I decided to give it try and flash V20B rom (starhub) via the .fls and .bin files method. It gave me an error when it was about to partition the "7 partitions". So i exited and unplug my phone as the SW upgrade screen on my phone turned to a blank screen. I wanted to try again and plug back holding the VOL DOWN button to enter SW mode. I heard the Windows sound notification (when a device is plugged or unplugged) as i do so but the screen was still blank. So i checked the device manager screen and saw that i entered the NVFLASH recovery mode.
Im confused as to how it would work now but anyway i was grateful to your post and that made me give smartflash a try still. :laugh::good:

the easiest way in your situation is using this [TOOL] Full Brick Repair (Clean & Easy)
It's nvflashable and already includes a CM10 nightly. Boot it up and upgrade CM10 with the built in upgrader. That's what I did yesterday. Then boot into recovery and flash gapps.

agent6 said:
Anyway although I doubt smartflash could work for my case, I decided to give it try and flash V20B rom (starhub) via the .fls and .bin files method. It gave me an error when it was about to partition the "7 partitions". So i exited and unplug my phone as the SW upgrade screen on my phone turned to a blank screen. I wanted to try again and plug back holding the VOL DOWN button to enter SW mode. I heard the Windows sound notification (when a device is plugged or unplugged) as i do so but the screen was still blank. So i checked the device manager screen and saw that i entered the NVFLASH recovery mode.
Im confused as to how it would work now but anyway i was grateful to your post and that made me give smartflash a try still. :laugh::good:
Click to expand...
Click to collapse
I had the same problem, and I leave the battery in the phone and it worked, try it

well
after reading some information, i solved my question using this thread
http://forum.xda-developers.com/showthread.php?t=1715272
thank you all guys that tried to help me.

Related

[Q] Semi-bricked / Smartflash tool not working

Hi
I'm helping out a friend, which O2X I have rooted and flashed WIUI on to (I previously owned one myself too)
For some reason the phone started to get hot after a while and used up the battery fast, until one day where he couldn't even turn it on again.
Now, he has been trying to fix it himself with NVflash, but no luck, so now its up to me and you guys.
I have used the smartflash tool and flashed the EURO OPEN stock ROM and everything went succesfull, but when the phone reboots, the LG logo appears, and it bootloops.
I tried both with battery and no battery in, but still no cigar.
Any suggestions what I should try next?
PS: If I try to turn on the phone normally, nothing happens. not even a blink from the screen, but I can get into S/W mode and APX
Try lg update tool, choose recover as option, then choose imei as entrance
SuperSkill said:
Try lg update tool, choose recover as option, then choose imei as entrance
Click to expand...
Click to collapse
EDIT: The software says the update is not compatible (dunno if translation is correct, but you get the point)
Update is aborted :/
No more suggestions on what to do?
Tried:
NVflash
Smartflash (Flashed EURO OPEN rom)
LG Update tool (recover function)
The phone still won't boot.
Smartflash is the only solution like you said that the phone can boot in s/w mode try to dig some answer in smartflash thread or search in google i know you can find some answer there
Sent from my Optimus 2X using xda premium
Assuming you have carried out the procedures correctly, looks like this device is actually defective. Probably not what you want to hear, I know, but...
Before giving up completely, you can NVFlash it again (using the original 10C NVFlash from Modaco) and post the log here. Wouldn't get my hopes up though.

[Q] LG - P970 bootlooping

Hey guys, i really need some help asap. I really know i will be called a noob for asking this, but i had flashed V20n into my Lg Optimus Black (P970). After i installed Zeus mod on it i got a few bugs, very rarely and some times it wouldnt start. I used to take the battery out for a few hours and everything worked perfect. The last 2 days to it refuses to open. Stays on the LG screen and the buttons flash (has reached CMR screen, i have done a format and then restarted it, and nothing works now AGAIN). I have used easy flasher, trying to install the v20s from 3 different forums but none of them helps. I would really appreciate if i could get some useful fast answers or other link refferals. I have absolutely no personal time within the day, and i will need to know fast in case i need to take it to the service center.
HeinekenAmstel said:
Hey guys, i really need some help asap. I really know i will be called a noob for asking this, but i had flashed V20n into my Lg Optimus Black (P970). After i installed Zeus mod on it i got a few bugs, very rarely and some times it wouldnt start. I used to take the battery out for a few hours and everything worked perfect. The last 2 days to it refuses to open. Stays on the LG screen and the buttons flash (has reached CMR screen, i have done a format and then restarted it, and nothing works now AGAIN). I have used easy flasher, trying to install the v20s from 3 different forums but none of them helps. I would really appreciate if i could get some useful fast answers or other link refferals. I have absolutely no personal time within the day, and i will need to know fast in case i need to take it to the service center.
Click to expand...
Click to collapse
What about smartflashtool, did you try it yet?
If not, download it (use search to find it), then go to my noob how to, download the patched v20s provided in there and then it should work fine again. Dont forget to flash the superuser.zip and do a data, cache, dalvik wipe.
N00BY0815 said:
What about smartflashtool, did you try it yet?
If not, download it (use search to find it), then go to my noob how to, download the patched v20s provided in there and then it should work fine again. Dont forget to flash the superuser.zip and do a data, cache, dalvik wipe.
Click to expand...
Click to collapse
I have tryed it 3 times but with nothing happening. I flashed the AP and the CP file through smartflash :-/ everything in the console succeeds but when it resets target and phone reboots, it wont open. It was just lying there 30 min on the lg sign and the buttons flashing
HeinekenAmstel said:
I have tryed it 3 times but with nothing happening. I flashed the AP and the CP file through smartflash :-/ everything in the console succeeds but when it resets target and phone reboots, it wont open. It was just lying there 30 min on the lg sign and the buttons flashing
Click to expand...
Click to collapse
Try to flash a v10 version. Or try b2c app and emergency recovery.
Sent from my LG-P970 using xda app-developers app
Are you using touch version of clockworkmod recovery? If yes try to use normal clockworkmod recovery. I have a case before whatever rom i flashed i always ended into bootloop because of the touch version of clockworkmod.
Mr. Dimples said:
Are you using touch version of clockworkmod recovery? If yes try to use normal clockworkmod recovery. I have a case before whatever rom i flashed i always ended into bootloop because of the touch version of clockworkmod.
Click to expand...
Click to collapse
yes, i have the touch mod. How can i switch to normal? Works by flashing?
N00BY0815 said:
Try to flash a v10 version. Or try b2c app and emergency recovery.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
is there any chance that by switching to v10 it will work? Also, will i be able to go back to v20 after that? And, i got no idea how to use a b2c app so ill look in the site. Just incase i dont find anything can u send me a link plz?
ty
N00BY0815 said:
Try to flash a v10 version. Or try b2c app and emergency recovery.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
b2c emergency recovery did nothing... :-/
Fixed
i cant install cwm with the kdz file... i tryed to reflash with smartflash and your patched rom, but stuck into bootloop. Every time i use smartflash i bootloop ... :-/ when i run the kdz file update, everything works great but i canw find a way to flash cwm on it :-/
methods tryed:
i used the method described here: http://forum.xda-developers.com/showthread.php?t=1512203 "FAILED" i have tryed all applications like R&D Test tool, BlackJack etc. But tey all fail... Only one that used to work was the smartflash one, that for some odd reason says it succeses but makes my phone bootloop :-/
Try to flash a very old one like V10A_00.kdz that you can root with GingerBreak-v1.20.apk

Is my O2x bricked?

hy guys,
i have a problem.
i was on v28g first generation rom and today i tried to upgrade to second generation.
i nvflashed the second generation rom, the phone started, no problem. after a while, the phone freezes and i had to pull off the battery because the phone doesn't respond to any command.
since then my phone is dead, don't want to start, nothing.
i tried to nvflash the first and the second generation rom, but the process is stopping at "waiting for bootloader to initialize".
i tried to nvflash a froyo/gb rom but i had the same issue.
smartflash don't works
the pc don't recognize the phone
the phone is dead dead dead
any idea?
thanks
i'm not an expert, but i've been following the development since a while. you can try a few things...
1 - try to nvflash from another pc
2 - open the file as pc administrator
3 - nv flash an old gb rom
good luck
Did you try a hard rest? Usually it works...
i tried a hard reset (both methods) but the phone is dead, does not react.
O2 is literally unbrickable....
\/ Check my signature down there \/
jerichoo said:
hy guys,
i tried to nvflash the first and the second generation rom, but the process is stopping at "waiting for bootloader to initialize".
Click to expand...
Click to collapse
after connecting your phone in APX mode (battery out, hold both volume + and - then plug in USB) put battery in again and use nvflash.
My P990 has this problem too, need to put battery back in to use nvflash.
I've been through some similar experience after flashing v28 leak ICS.
I wanted to come back to CM7 or the stock LG ROM.
The only method that worked is this described here: http://forum.xda-developers.com/showthread.php?t=1970979
It uses nvflash to flash an old version of LG stock ROM. After that you can update it however you want.
You will have to root your device again after this.
jerichoo said:
hy guys,
i have a problem.
i was on v28g first generation rom and today i tried to upgrade to second generation.
i nvflashed the second generation rom, the phone started, no problem. after a while, the phone freezes and i had to pull off the battery because the phone doesn't respond to any command.
since then my phone is dead, don't want to start, nothing.
i tried to nvflash the first and the second generation rom, but the process is stopping at "waiting for bootloader to initialize".
i tried to nvflash a froyo/gb rom but i had the same issue.
smartflash don't works
the pc don't recognize the phone
the phone is dead dead dead
any idea?
thanks
Click to expand...
Click to collapse
Its just network/USB cable problem.. replace USB cable. it will work.
guys, I tried EVERY method, unsuccessfully.
same message "waiting for bootloader to initialize"
Maybe the battery?
Sent from my LG-P990 using xda app-developers app
jerichoo said:
hy guys,
i have a problem.
i was on v28g first generation rom and today i tried to upgrade to second generation.
i nvflashed the second generation rom, the phone started, no problem. after a while, the phone freezes and i had to pull off the battery because the phone doesn't respond to any command.
since then my phone is dead, don't want to start, nothing.
i tried to nvflash the first and the second generation rom, but the process is stopping at "waiting for bootloader to initialize".
i tried to nvflash a froyo/gb rom but i had the same issue.
smartflash don't works
the pc don't recognize the phone
the phone is dead dead dead
any idea?
thanks
Click to expand...
Click to collapse
Lol brick 2x XD. Flash originale rom:thumbup:
Sent from my LG-P990 using xda app-developers app
neo5icek said:
Maybe the battery?
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
when you use nvflash the baterry must be pulled off, so i guess it has nothing to do.
alexcyb said:
Lol brick 2x XD. Flash originale rom:thumbup:
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
i tried to flash a v10 and a v20 rom
http://forum.xda-developers.com/showthread.php?t=1054492
http://www.youtube.com/watch?v=nmzk92rV6k4
http://www.modaco.com/topic/335474-25-mar-nvflash-stock-rom-release-v10b-dated-1300166062-15032011/ (recommended)
(reinstall system or try on another pc)
thanks everyone, for the moment, the phone is going to warranty...
Good Luck
Sent from my LG-P990 using xda app-developers app
jerichoo said:
thanks everyone, for the moment, the phone is going to warranty...
Click to expand...
Click to collapse
man.. you "can't brick" your phone....it will always be able to get into nvflash mode.. and this is the way out.
Maybe your phone is tired of always reFLASHing. Give it a break perhaps
aldyu said:
Maybe your phone is tired of always reFLASHing. Give it a break perhaps
Click to expand...
Click to collapse
+1
that's very possible
jerichoo said:
hy guys,
i have a problem.
i was on v28g first generation rom and today i tried to upgrade to second generation.
i nvflashed the second generation rom, the phone started, no problem. after a while, the phone freezes and i had to pull off the battery because the phone doesn't respond to any command.
since then my phone is dead, don't want to start, nothing.
i tried to nvflash the first and the second generation rom, but the process is stopping at "waiting for bootloader to initialize".
i tried to nvflash a froyo/gb rom but i had the same issue.
smartflash don't works
the pc don't recognize the phone
the phone is dead dead dead
any idea?
thanks
Click to expand...
Click to collapse
O2x is unbrickable !
Use progmaq-default-cm-10 to return to CM10 with old bootloader ...
Good Luck ! :good:
tried that too (proqmag, homero etc), the phone is f*****g dead, no sign of life, all the nvflashes stucks at "waiting for the bootloader to initialize", i tried on different pc's, i don't know what else to do....

please help bricked my phone

please help me i have flashed using convert kdz and flashed by SFT.. my phone now not working.. no power any thing... what i do now ???:crying:
remove the battery, enter in s/w update mode and reflash whith SFT but with a good rom.
=> http://forum.xda-developers.com/showthread.php?t=1448803
rom V20O => http://forum.xda-developers.com/showpost.php?p=23788913&postcount=170
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
jimmysmart83 said:
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
If you really did everything and in a right way, you can start to build a new house because you have the first brick already.But...it's not so easy to brick a phone with SFT.If you really followed the rules for Smart Flash Tool it's practically impossible.I know that people tend to panic in such situations and do something wrong in a rush.Well, take the battery, sim card and memory card out of the phone; hold the volume up button and then plug your usb cable( sure that cable and contacts are okay ), which is pluged in your computer with SFT opened; sometimes the phone enters in s/w mode in a second but sometimes needs five.Then flash a GB rom or anything you want.If nothing will happen is very much possible that you have a hardware problem( something similar happened to me when my motherboard was fu.ked and this is quite common with P970 ).Good luck.:fingers-crossed:
P.S. Are you talking about SE arc or LGE P970?
jimmysmart83 said:
But it's not connecting to s/w update mode. No power any more... Pc not detect my phone...
I tried everything.. removed battery and connect phone but nothing happend, just like dead phone.
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
Did you maybe flash a wrong ROM? Double check please. Whats the name of your kdz file? Where did you get it from? Did you interupt the update procedure? Or did it get interrupted?
Sent from my LG-P970 using xda app-developers app
Edvin73 said:
If you really did everything and in a right way, you can start to build a new house because you have the first brick already.But...it's not so easy to brick a phone with SFT.If you really followed the rules for Smart Flash Tool it's practically impossible.I know that people tend to panic in such situations and do something wrong in a rush.Well, take the battery, sim card and memory card out of the phone; hold the volume up button and then plug your usb cable( sure that cable and contacts are okay ), which is pluged in your computer with SFT opened; sometimes the phone enters in s/w mode in a second but sometimes needs five.Then flash a GB rom or anything you want.If nothing will happen is very much possible that you have a hardware problem( something similar happened to me when my motherboard was fu.ked and this is quite common with P970 ).Good luck.:fingers-crossed:
P.S. Are you talking about SE arc or LGE P970?
Click to expand...
Click to collapse
maybe something wrong i did but sft tool completed flash my phone i think my kdz file was wrong maybe... i give it to mobile repair center today and he also said that phone is totally dead not detecting to pc, now he will check motherboard... tomorrow i will know...
i am talking about LG P970
anyway i have SE Arc S also.
N00BY0815 said:
Did you maybe flash a wrong ROM? Double check please. Whats the name of your kdz file? Where did you get it from? Did you interupt the update procedure? Or did it get interrupted?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
jimmysmart83 said:
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
Click to expand...
Click to collapse
Are you sure you used the v10G for P970? Cause otherwise only and interruption could cause such a hard failure...
N00BY0815 said:
Are you sure you used the v10G for P970? Cause otherwise only and interruption could cause such a hard failure...
Click to expand...
Click to collapse
yes m sure.
jimmysmart83 said:
first time i was flashed stock ROM V10A which downloaded from here But my phone bootloop its only showing LG logo and touch buttons flashing only, so i searched in xda to try another method and i got V10G_00.kdz file from india region and got [TOOL] LGExtract 0.2.1 do it all process i think i lost my recovery or maybe motherboard problem....
anyway if any suggestions please reply...
Click to expand...
Click to collapse
Well, the phone goes in bootloop when you flash patched files with recovery and then forget to flash Superuser.You must not boot your phone when it enters in recovery after flashing with SFT but flash Superuser from your SD card first.I think that this maybe was your first problem.But LG logo and flashing leds are also a very possible sign for a faulty motherboard.The same happened to me with one week old P970 with official firmware and not rooted, when I tried just to reboot the thing.And if your phone died after this, you can be 99.9% sure that you have a fu.ked motherboard.

[Q] Bootlooping on LG optimus Black

I have been using zeus v7.6 perfectly untill today. While i was texting someone the screen started wobbling arround. (behaving a bit like the windows xp error message when you move it arround and it leaves a trail behind it). i tried restarting in recovery mode but freezed on the lg logo, having a small faint wite line at the bottom of the screen. I have tried smartflash tool with no succes, and i have also tried the script from the cotkey, but it gets stuck at the first step. Also, i cannot interact with the KDZ updater ... I could really use some help, as i cannot afford a new phone :-/
HeinekenAmstel said:
I have been using zeus v7.6 perfectly untill today. While i was texting someone the screen started wobbling arround. (behaving a bit like the windows xp error message when you move it arround and it leaves a trail behind it). i tried restarting in recovery mode but freezed on the lg logo, having a small faint wite line at the bottom of the screen. I have tried smartflash tool with no succes, and i have also tried the script from the cotkey, but it gets stuck at the first step. Also, i cannot interact with the KDZ updater ... I could really use some help, as i cannot afford a new phone :-/
Click to expand...
Click to collapse
Have you tried to remove battery and connect the phone by usb to pc, pressing vol + button?
danielr18 said:
Have you tried to remove battery and connect the phone by usb to pc, pressing vol + button?
Click to expand...
Click to collapse
Yes, i have entered S/W mode. Smartflash tool finds my phone, i set the CP and AP bin, it tells me it finished with the ""TADA"" noise and my phone restarts... well, it doesnt start, it just stays on the lg logo with the lights flashing :-/. I have tried many different versions but none starts :-/ Thank you for replying btw
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
Yes, i have entered S/W mode. Smartflash tool finds my phone, i set the CP and AP bin, it tells me it finished with the ""TADA"" noise and my phone restarts... well, it doesnt start, it just stays on the lg logo with the lights flashing :-/. I have tried many different versions but none starts :-/ Thank you for replying btw
Click to expand...
Click to collapse
B2C app and emergency recovery? The lg update tool...
Sent from my LG-P970 using xda app-developers app
N00BY0815 said:
B2C app and emergency recovery? The lg update tool...
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
I have tried it allready in the past with no succes :-/ idk why, but last time i managed to unbrick it it had quite a bit of luck involved... my basic problem is that im from a laptop and its in greek. theres something wrong with the language and i can only see symbols ... ill try again in the evening and ill let you know
Ran the KDZ updater but phone stiil stays on the lg logo...
Still unsuccessfull... Here is the log file:
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
Still unsuccessfull... Here is the log file:
Click to expand...
Click to collapse
Looks strange... do you also have a log of sft? And do you run those programs as admin? You re on XP right? Did you already disable your antivirus? Try another usb port/pc? Are you sure yourr files are good? Maybe dl the v20s from my noob how to and compare md5 sums afterwards.
Sent from my LG-P970 using xda app-developers app
no, i have not tried disabling antivirus and i am using windows 7. i will disable antivirus now and send you the SfT Log
Smart Flash Log
Here is the Smart Flash log
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
no, i have not tried disabling antivirus and i am using windows 7. i will disable antivirus now and send you the SfT Log
Click to expand...
Click to collapse
Did you run sft as admin? And follow the readme? You have to disable something in the device manager.
Sent from my LG-P970 using xda app-developers app
great, lg emergency recovery tool tells me this model is not supported for upgrading =.=
Similar problem, I was on Huexs´s 6.4, was rooted, recovery was working, then I flashed v30d by tantrums, was using it without problems, then some problems with sd card, from that point I am not able to run recovery, so I tried to flash patched v20 with Smartflash, but when it goes to rebooting, it always stay in bootloop. Only way for me is flash v30b, then root it with Unlockroot, but thats all, I can normaly use phone rooted, but I am not able to push to phone recovery image, so I can not flash any zip file ( like new kernels. etc.).
Managed to flash V30b
i managd to flash the v30b by the kdz updater but... Everything was working normally. I shut off the phone so i can go to sleep and i put it to charge. the picture i got is the lg logo with a white faint line down the bottom of the screen again. I unplug the charger and remove the battery. The next morning it worked perfectly again for aprox. 9 hours, that i was at school. Then i try texting my gf and the pictures below show what happened... WTH? Any help would be deeply appreciated :-/
OMG are you getting the same problem as redy ? O.O That crazy screen looks like his. :/
Sent from my LG-P970 using Tapatalk 2
what prob has redy got?
I got some news about this prob. When it starts, if i lock the device am continue after a while it works ok again for a bit
Sent from my half working LG-P970 using xda app-developers app
@robusto try flashing v30B. then root your OB and flash TWRP recovery. You can do it like this:
1. Install goomanager
2. Open goomanager and provide root permision
3. Hit menu and choose 'Install OpenRecovery'.
Now you have TWRP Recovery and you should be able to flash any .zip file.
It worked for me.
(or you can get twrp recovery just by pushing the twrp recovery image file using terminal emulator).
Good luck!
(sorry for my bad english x_x).
Sent from my LG-P970 using xda premium
AW: [Q] Bootlooping on LG optimus Black
GPaul said:
@robusto try flashing v30B. then root your OB and flash TWRP recovery. You can do it like this:
1. Install goomanager
2. Open goomanager and provide root permision
3. Hit menu and choose 'Install OpenRecovery'.
Now you have TWRP Recovery and you should be able to flash any .zip file.
It worked for me.
(or you can get twrp recovery just by pushing the twrp recovery image file using terminal emulator).
Good luck!
(sorry for my bad english x_x).
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
I am quite sure this wont work... security error...
Sent from my LG-P970 using xda app-developers app
any idea on how can i restore my imei from the S/W upgrade screen?
the lg united tool reads wrong imei and does not even start upgrading.
I am now on stock V30B Europe, rooted by unlockroot, uninstalled garbage and apps, whitch I dont need, using Holo launcher and LMT and am satisfied, bechmark with antutu 3100. Only I am not able change kernel, what could be phone speed up, but nevermid. I can live with it. Only can be good to convert some kernel.zip to same file, whitch can be flashed with kdz flasher or smartflashtool. Anyway thanks for ideas.
---------- Post added at 06:07 PM ---------- Previous post was at 05:53 PM ----------
HeinekenAmstel, try to left out of phone the battery for one day, then try to flash kdz v30b for your country from here http://lg-phone-firmware.com/index.php?id_mod=1, but connect phone to PC without battery in. And may be is good to do it on PC with WIN XP. For me this is working better then on PC with WIN7. Good luck.

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