Database Develop

[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

[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.

Desperate call for help!

I recently rooted my Galaxy Exhibit 4G and installed the unofficial CM10 ROM. After a while I realized how slow everything was working, so I decided to turn back. However, when I tried to recover my previous backup (rooted stock) it gave me the stupid md5 error. followed directions on how to fix it, but then I had problems recovering the system and data. I then turned to Odin, but it didn't help, and my phone now tries to start up, reaches the Galaxy Exhibit 4G logo, and then fails to load, and tries over again. I can still access odin mode, but recovery won't boot and just reboots the whole system.
Can anybody please help me? What can I do? I tried to follow directions on the forums, and on the wiki, but everything just got worse. I have nowhere else to turn

Why not install a flavor of Gingerbread like Peach Sunrise or...gosh, I forget our GB days!
Honestly, look at Slimbean and an OC kernel. They've given me personally the best performance I've seen on this phone, but even they will slow down after a while. I do a fresh install every few months when the lag gets atrocious, keeps the phone spic and span.
There's only so much you can do on 300 Mb of ram- even on Gingerbread.

Sounds like you will have to flash a recovery using Odin. Once in recovery then you can flash a rom. The reason your phone won't boot up is probably because it has nothing to boot into. Try cm7. I have been running it while waiting for my Lumia 521 to get here and it is amazingly fast. Fastest my phone has ever been.
Sent from my SGH-T679 using xda app-developers app

BrandonCormier said:
Sounds like you will have to flash a recovery using Odin. Once in recovery then you can flash a rom. The reason your phone won't boot up is probably because it has nothing to boot into. Try cm7. I have been running it while waiting for my Lumia 521 to get here and it is amazingly fast. Fastest my phone has ever been.
Sent from my SGH-T679 using xda app-developers app
Click to expand...
Click to collapse
i used odin but i now have no access to recovery mode on my phone. every time i try to access i see the recovery logo but then it just reboots. i have factory phpne now which is already an improvement from the most brick my phone was beforre

danikvsn said:
i used odin but i now have no access to recovery mode on my phone. every time i try to access i see the recovery logo but then it just reboots. i have factory phpne now which is already an improvement from the most brick my phone was beforre
Click to expand...
Click to collapse
If you are using stock recovery then when you see the recovery screen hit the menu key. It should make the screen dim a bit. You should reboot into recovery then where you can flash cwm.
Sent from my SGH-T679 using xda app-developers app

BOOT LOOP

Hi,
My LG Optimus Black P970 is locked in boot loop and I can't fix it.
I did the whole procedure from this topic, until the last SFT screen with the message 'Download Complete' written in green. But the phone restarts and gets into boot loop again.
I tried to repair the phone with the LG Mobile Support Tool, but it didn't work either. In fact, after this last procedure the LG logo stopped appearing, now the screen just lights up (but does not show anything) and buttons LED blink.
What do I do?
Thank you

Initialization
Do yo turn off completely the phone and connect the usb cable without battery?

Flash ICS
Sent from my LG-P970 using xda app-developers app

Try smartflashtool a v20 firmware with CWM.Flash it then boot to recovery.From there,Wipe Data/Factory Reset and then reboot
Sent from my LG-P970 using Tapatalk 4 Beta

BlackPie said:
Try smartflashtool a v20 firmware with CWM.Flash it then boot to recovery.From there,Wipe Data/Factory Reset and then reboot
Sent from my LG-P970 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Thanks everyone for the replies. After several firmwares, I tried Europe V20S and it worked, at least partially. The boot loop is gone, but another problem appeared.
Now the screen is splitting into several. I think it might be a firmware conflict (for trying to install different firmwares repeatedly - do not know if I'm talking silly, noob here) and a wipe data / factory reset would help.
So I tried to follow this topic, since Optimus Black doesn't have a keycombination to get to Recoverymode on booting, but It didn't work.
Is there another way?
Thanks

Bricked?

Issue: Phone suddenly shuts down, when trying to boot it, it just keeps restarting when hitting the bootanimation.
I use the phone less than 30 mins and suddenly it just shuts down and I have to do a full wipe for it to work again. Even after full wipe, it works perfectly fine for max 1 hour of use, then it shuts down and new wipe is required.
What I have tried:
Flashing PA, CM10.2, flashing full stock ICS V30A.kdz, repartion with AIO-Toolkit and even tried using Homero's ICS NvFlash version of ICS. Nothing helps, I use the phone a little, and then it just needs to be wiped again.
Anyone who had an issue similar to this? If not, then I think the O2X path ends here
Hoping someone can help.
-Natalya

Try to go back to old bootloader and use a GB rom and see if the problem persists. See the group on my signature on Facebook.
Sent from my LG-P990 using xda app-developers app

natalya said:
Issue: Phone suddenly shuts down, when trying to boot it, it just keeps restarting when hitting the bootanimation.
I use the phone less than 30 mins and suddenly it just shuts down and I have to do a full wipe for it to work again. Even after full wipe, it works perfectly fine for max 1 hour of use, then it shuts down and new wipe is required.
What I have tried:
Flashing PA, CM10.2, flashing full stock ICS V30A.kdz, repartion with AIO-Toolkit and even tried using Homero's ICS NvFlash version of ICS. Nothing helps, I use the phone a little, and then it just needs to be wiped again.
Anyone who had an issue similar to this? If not, then I think the O2X path ends here
Hoping someone can help.
-Natalya
Click to expand...
Click to collapse
did you try to fully wipe, system, dalvik, cache and full wipe,or try on TRWP select advance wipe and select everything(exclude sdcard) hit thanks if it works for you, i had a similar error but not the same has you.
Sorry for the poor english.

filarod said:
Try to go back to old bootloader and use a GB rom and see if the problem persists. See the group on my signature on Facebook.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
I tried using Homero V20S NvFlash ROM yes, which is on old bl, but it didn't help
After I use the phone like 1-2 hours maybe less, it just restarts and then won't boot again and I have to do full wipe again.
Yes psmax, I tried and sometimes, when I flash ROMs even in TWRP, the phone just shuts down in the middle of the flashing process. What the hell can be causing this?

Could it be an hardware problem?..
Sent from my LG-P990 using xda app-developers app

filarod said:
Could it be an hardware problem?..
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
How can I know if its a hardware problem? That's what I am afraid of - because if it is, then its goodbye O2X

Sold the phone today.
Officially looking for a new phone now. Hmmmmmmm i wonder if i shall buy another o2x now that its being offered to me extremely cheap... i dunno what to do

Had almost same symptom: quick drop from fully charged to 60%, then random BSODs and reboots.
New battery did the trick for me.
Sent from my LG-P990 using xda app-developers app

A broken battery could send wrong readings to the kernel, which in turn responds with a shutdown or a crash. Most of the hw problems could depend on this...