[Q] Bootloop after update to Stock Rom JB - LG Optimus 4X HD

Hi guys,
I had have a few months CM11 on my LGP880 and that worked fine. :good:
After the last update of CM11, my LGP880 came in a bootloop that I could not get out.
On the XDA forum i found some solutions to get out of the bootloop and one worked well.
http://forum.xda-developers.com/showthread.php?p=35971349#post35971349 (was not working for me, stays in bootloop)
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7 (This works well for me):good:
With the "LGFlash Tool 2014" i flashed stock rom, ICS V10A, on my LGP880 and after that V10b en later V10d.
My LGP880 worked fine and without problems.
After a few days I wanted to upgrade to JB.
I flashed the stock rom, JB V20a, with the same "LGFlash Tool 2014", on my LGP880 and installation went smoothly but I came back in a bootloop at startup. :crying:
(starts up several times and then a dead screen and sometimes completely off)
From the stock recovery several times i did wipe data / factory reset, wipe cache etc. , but my LGP880 remained in a bootloop.
Again, with the "LGFlash Tool 2014" back to ICS V10a and the bootloop was gone and my LGP880 worked well again.:fingers-crossed:
Now I have the original "LG Mobile Support Tool" installed and I performed an update to ICS V10b on my LGP880 (with ICSa running well !!)
Update to ICS V10b, 10d, 10f and 10h went smoothly and my LGP880 worked well.
With the same "LG Mobile Support Tool" later on upgraded to JB V20a and my LGP880 comes back in a boot loop ?? :crying:
ICS is not a problem but after updating to JB I'm in a boot loop.
Because I want to go get back to CM10 I first need to get a upgrade to JB that is stable.
Is there a solution?

@jksr have you tried doing a factory reset in stock recovery. This question is already answered many times and it's stated at the end of that flashing tutorial if you get a bootlop perform a factory reset in stock recovery.
Good luck.
Sent from my LG-P880 using XDA Premium 4 mobile app

sPEADy said:
@jksr have you tried doing a factory reset in stock recovery. This question is already answered many times and it's stated at the end of that flashing tutorial if you get a bootlop perform a factory reset in stock recovery.
Good luck.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hello sPEADy,
Thanks for your comment,
Yes, I did factory reset and etc. several times.
See my post: From the stock recovery several times i did wipe data / factory reset, wipe cache etc. , but my LGP880 remained in a bootloop.
I know that this problem is often discussed, there is plenty to read about.
Coming out of the bootloop is not a problem:
Coming out from the boot loop went well when I go back to ICS Stock Rom.
Then again my LGP880 is in original factory settings (ICS V10a, Unrooted and with the original recovery that is locked).
My LGP880 works fine then.
The problem is that the bootloop comes back immediately after upgrading to JB. ??
I do an upgrade to JB with the original (latest software and drivers) "LG Mobile Support Tool" from the LG site.
This problem (in a bootloop after upgrading to JB) I have not seen before on the Internet?
(Go back to ICS solves the bootloop and my LGP880 works well again.)
I need JB to unlock the bootloader again and then go back to CM10.
(Unlock bootloader in LGP880 is not possible in ICS, after the upgrade to JB is the bootloader standard unlocked)
Thanks again and i hope that somebody knows a solution

i know solution ... in flashtool have 2 choice first flash rom second upgrade recovery ...you choose the second and all fix

Related

[Q] how to downgrade My LG BLACK

How To downgrade LG BLACK 2.3.4 to 2.2
What exactly is your rom now? Is is custom, or stock?
Factory reset either via settings, or cwm is the first step, then either restore a backup of froyo, you have got, or flash a v10x version via smartflash (also perform a factory reset before)
Sent from my LG-P970 using Tapatalk
why downgrade?
this method is simple and works great..
http://forum.xda-developers.com/showthread.php?t=1448803
after this you will have v10 (froyo).. you can also do a factory upgrade after this step to get original lg upgrade to GB.

Should I Go Back To GB ???

Hi everyone as you can see i am a noob and have learnt everything within a month from these forums i started off by rooting my note and then i flashed the now famous repack from china and from there i have been 99% of the time using stunner but also liquid smooth. Before i flashed the chinese repack i did a backup in clockwork after all this came out about the emmc problems with the repack i used that clockwork backup to go back to gingerbread and then flashed a rootable firmware through pc odin when i checked about phone i found everything was back to normally including baseband version is back to N7000XXLB2. I managed 2 days with gb then thourght stuff this and reflashed the repack and went back to stunner( i carnt live without tablet mode 160 dpi ) and still on stunner my baseband version has not changed its still N7000XXLB2 ? My question is in my situation would you go back to gb or stay with stunner ?? Also i have bourght a jig which i have used twice to remove yellow triangle. What would you do ?
Sonic1981 said:
My question is in my situation would you go back to gb or stay with stunner ??
Click to expand...
Click to collapse
I did neither when faced with the same dilemma.
I went back to rooted GB and immediately flashed CM9, which is safe, because it is not based on the infamous Repack.
Your modem hasn't changed because not a single custom Rom contains its own radio.
You jig will do fuq all for your Note if, God forbid, it comes to the worst, i.e. hardbrick.
Not even JTag would help you then.
Thanks for the reply is there a noob style instuctions on how to install cm9 and link please lol as i will do it now ! Also i have heard ppl saying that once u have flashed the repack it changes your bootloader and theres no way to change it back is that correct ?
HELP
I have just flashed back to stock gb using pc odin and now ive got bootloop what di i do ?????
Sonic1981 said:
I have just flashed back to stock gb using pc odin and now ive got bootloop what di i do ?????
Click to expand...
Click to collapse
Try wipe data, wipe cache, wipe battery, and wipe dalvik. That works for me when I downgrade to GB too.
PeterGChan said:
Try wipe data, wipe cache, wipe battery, and wipe dalvik. That works for me when I downgrade to GB too.
Click to expand...
Click to collapse
Nobody ever says how, but one way is via stock recovery mode: Vol up, home + power at boot up. Then select wipe / factory reset.
Of course you should revert back to gingerbread unless you want to join the party with this guy: http://forum.xda-developers.com/showthread.php?p=25730932

[Q] Super reset?

Hello everybody! I flashed on my LGP880 the rom eternity(cm10.1) and now i want to come back to stock rom. for me was v10f. but i don't know how because i haven't any PC now and i can't flash the file .kdz
Today i tried to make reset from original recovery but nothing changed and at reboot was again CMboot(eternity rom).
So, i want to ask: there is a way to make fullreset for come back in stock rom ( v10f without root and recovery)?
mono90 said:
Hello everybody! I flashed on my LGP880 the rom eternity(cm10.1) and now i want to come back to stock rom. for me was v10f. but i don't know how because i haven't any PC now and i can't flash the file .kdz
Today i tried to make reset from original recovery but nothing changed and at reboot was again CMboot(eternity rom).
So, i want to ask: there is a way to make fullreset for come back in stock rom ( v10f without root and recovery)?
Click to expand...
Click to collapse
The only way is to flash .kdz
Or you may go back with cwm backup which was taken before cm install. Don't know wether it work.
mono90 said:
Hello everybody! I flashed on my LGP880 the rom eternity(cm10.1) and now i want to come back to stock rom. for me was v10f. but i don't know how because i haven't any PC now and i can't flash the file .kdz
Today i tried to make reset from original recovery but nothing changed and at reboot was again CMboot(eternity rom).
So, i want to ask: there is a way to make fullreset for come back in stock rom ( v10f without root and recovery)?
Click to expand...
Click to collapse
If you had taken the stock backup before installing custom rom, you can install the recovery apk form this page http://forum.xda-developers.com/showthread.php?t=2123602&page=10 , install it as normal apk, reboot into recovery and restore with your backup.
It worked for me perfectly
mono90 said:
Hello everybody! I flashed on my LGP880 the rom eternity(cm10.1) and now i want to come back to stock rom. for me was v10f. but i don't know how because i haven't any PC now and i can't flash the file .kdz
Today i tried to make reset from original recovery but nothing changed and at reboot was again CMboot(eternity rom).
So, i want to ask: there is a way to make fullreset for come back in stock rom ( v10f without root and recovery)?
Click to expand...
Click to collapse
There s a way to make Super Reset on 4X HD, but after a super reset guss what comes...
An ULTRA Reset which is basically vol- and Powering 0n the device.
After an ULTRA Reset if you are not satisfied with the results, you can try making an ULTIMATE RESET, by downloading v10h firmware and flashing it with tool called KDZ.
You can find many tutorials about this on the General section on this forum.
You previous system doesnt exist anymore.
Only way to get back to any stock LG Rom is sadly the pc-kdz way
Sent from my LG-P880 using xda app-developers app

[Q] HELP, stuck in boot loop LG 2x

HI,
Here's how I screwed up my optimus 2x, would be thankful, if someone can point me in the right direction.
1. Installed V30b over the weekend, which worked fine without any issues.
2. Rooted with CWM using NVflash
3. Found this very slow so yesterday tried to go back to gingerbread
4.Installed a modified V20s by Felix, which still kept it on the ICS
5.Used the V20Q release to do an offline upgrade using AIO
6.Phone stuck on LG logo
7. Tried flashing GB CWM didnt work
8.Tried smartflashing V20Q, didnt work
9.Used LG software to recover it, which installed v30b again
10. on boot dead lg bot would appear, no revoery possible
11.flased ICS CWM using NVflash,
12. stuck on boot loop.
Somewhere in the middle I also tried putting a bootloader, and also cleared dalvik cache. I forgot where I did that.
but seems like i have screwed it badly
seems like some sort of partition and bootloader problem
can anyone help me go back to ginger bread please.
AW: [Q] HELP, stuck in boot loop LG 2x
cipher233 said:
HI,
Here's how I screwed up my optimus 2x, would be thankful, if someone can point me in the right direction.
1. Installed V30b over the weekend, which worked fine without any issues.
2. Rooted with CWM using NVflash
3. Found this very slow so yesterday tried to go back to gingerbread
4.Installed a modified V20s by Felix, which still kept it on the ICS
5.Used the V20Q release to do an offline upgrade using AIO
6.Phone stuck on LG logo
7. Tried flashing GB CWM didnt work
8.Tried smartflashing V20Q, didnt work
9.Used LG software to recover it, which installed v30b again
10. on boot dead lg bot would appear, no revoery possible
11.flased ICS CWM using NVflash,
12. stuck on boot loop.
Somewhere in the middle I also tried putting a bootloader, and also cleared dalvik cache. I forgot where I did that.
but seems like i have screwed it badly
seems like some sort of partition and bootloader problem
can anyone help me go back to ginger bread please.
Click to expand...
Click to collapse
here buddy look in my thread there's a link providing a unbrick v10 ROM. Look here http://forum.xda-developers.com/showthread.php?t=2065451 just flash that and start over new with AOI tool
Sent from my LG-P990 using xda premium
cipher233 said:
HI,
Here's how I screwed up my optimus 2x, would be thankful, if someone can point me in the right direction.
1. Installed V30b over the weekend, which worked fine without any issues.
2. Rooted with CWM using NVflash
3. Found this very slow so yesterday tried to go back to gingerbread
4.Installed a modified V20s by Felix, which still kept it on the ICS
5.Used the V20Q release to do an offline upgrade using AIO
6.Phone stuck on LG logo
7. Tried flashing GB CWM didnt work
8.Tried smartflashing V20Q, didnt work
9.Used LG software to recover it, which installed v30b again
10. on boot dead lg bot would appear, no revoery possible
11.flased ICS CWM using NVflash,
12. stuck on boot loop.
Click to expand...
Click to collapse
This is wrong in some many levels... ok not to worry anything can be fixed, bricked doesnt exist anymore,
1.- dowload a rom in .zip format that uses the NEW BOOTLOADER / ICS bootloader / Unlocked bootloader, its important, no old bootloader or GB bootloader, the V30b rom is a good one
2.- Use AIO Tools and select 4 and select new layout
3.- Use AIO Tools and select 8 and select the new bootloader
4.- Now the phone reboots and CWM shows on screen, select flash from external SD card or Internal SD card, find your rom in .zip extension/format and select it, will be flashed (means installed), now reboot
5.- enjoy.
LG optimus 2x p990 stuck in bootloop
Deal All,
i am new to XDA and having issue with my LG O2x.
I had manged to upgrade LG O2x on ICS and it was running fine, but last Saturday i tried to check update via LG update tool, it says update available, when respective file download completed, O2x started in boot-loop.
I am not able to figure out what went wrong and how to solve it ?
As i was not prepared all so no backup of ROM, no developer mode ON and top of that i am not able to get into recovery mode by precessing volume down + Power button.
i can only enter in software upgrade mode, can anyone help me out ?
Thanks in advance !
Rajesh
Check out AIO tool under stickies. Read first post carefully and you should be fine
Try to flash via smartflash a GB stock rom or Ics
Wysłane z mojego LG-P990 przy użyciu Tapatalka
LG optimus 2x p990 stuck in bootloop
thanks for all your advice !
I got success when i flashed to GB. I figured out what was wrong.
i just put battery when phone is in software upgrade mode & it worked.
Rajesh
Wysłane z mojego Xperia Arc S przy użyciu Tapatalka

Bricked I9000, but have download mode. It got trickier than I thought.

Hi,
I think I bricked my phone very well. I used Odin to put some GB Kernel in order to be able to upgrade to JB. Later I got into recovery mode and cleaned cache and many other things, but was unable to wipe data\factory reset, from there it all went down. I tried fixing it using this guide, but it didn't help. I still can get into download mode, though. And sometimes even into recovery, but it gives me tones of errors.
What can I do? How do I fix it now???
Thanks in advance!
Fix:
Try to flash a stock GB rom with Odin.
Kernel/ Upgrade to JB
After that flash a rooted kernel. Try CF-Root or Semaphore Kernel.
pila405 said:
Hi,
I think I bricked my phone very well. I used Odin to put some GB Kernel in order to be able to upgrade to JB. Later I got into recovery mode and cleaned cache and many other things, but was unable to wipe data\factory reset, from there it all went down. I tried fixing it using this guide, but it didn't help. I still can get into download mode, though. And sometimes even into recovery, but it gives me tones of errors.
What can I do? How do I fix it now???
Thanks in advance!
Click to expand...
Click to collapse
flash rom first, find ur own firmware, then flash rom using odin, if ur pet kernel first, there will be no rom to reset.
Sent from my GT-I9000 using xda premium
I indeed flashed stock GB, and managed to update to JB from there
Thank you very much guys!
pila405 said:
I indeed flashed stock GB, and managed to update to JB from there
Thank you very much guys!
Click to expand...
Click to collapse
Press the thanks button if someone helped you
Hi,
got one problem. hope im typing in right section.
Flashed my I9000 to 2.3.6 JVU plus CF-Root. Minutes later ive tried to flash Gamerzrom via CWM.
(done a full wipe / factory reset, wiped caches etc.).
After that Phone reboots and is stuck in a bootloop containing the Semaphore screen and i cannot
enter CWM again. I have to reinstall stock rom first and then root it again.
Dunno what im doing wrong at that point; am i using wrong kernel?
thanks in advance
that gamerzrom...2.3 or 4.2?
if u wanna flash to 4.x, need to flash cm9 first.flash twice, from 2.3 to cm9 to cm10.dont do shortcut please...
cm9 need to flash twice, bootloop will occur on first flash,use 3 button combo to go back to recovery,its da matter of releasing da 3 button,release it rite after u see da white sgs,if still cant, flash back firmware n redo step.
after flashing cm9, do not reboot,flash cm10 or gamerzrom,first flash will error,flash it back again n then reboot, do wipe everything except sd when in 2.3, and please...read first before asking

Categories

Resources