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] Root/bootloader problem

Hello,
I tried to root my P990 with option 3 from All-In-One Toolkit. All went well until it asked me to change to a new ICS bootloader. I choose the second option ICS-cwm-6.0.2.5.img. It went well until it wanted to send ics-bootloader.bin to the phone. It got stuck at 655360/891024 bytes sent. Now my phone won't start. What should I do?

username10000 said:
Hello,
I tried to root my P990 with option 3 from All-In-One Toolkit. All went well until it asked me to change to a new ICS bootloader. I choose the second option ICS-cwm-6.0.2.5.img. It went well until it wanted to send ics-bootloader.bin to the phone. It got stuck at 655360/891024 bytes sent. Now my phone won't start. What should I do?
Click to expand...
Click to collapse
Use AIO P990 TOOL that is in the Android Develpment, there is an option to change to GB/ICS layout , try it, and you will have your phone running again!

MrAlez said:
Use AIO P990 TOOL that is in the Android Develpment, there is an option to change to GB/ICS layout , try it, and you will have your phone running again!
Click to expand...
Click to collapse
I tried it but I still get errors. I tried all 3 options from the ICS layout. I even tried the GB versions.
I also forgot to mention that I have android 4.0(V30b).

username10000 said:
I tried it but I still get errors. I tried all 3 options from the ICS layout. I even tried the GB versions.
I also forgot to mention that I have android 4.0(V30b).
Click to expand...
Click to collapse
have you try installing a OFFICIAL STOCK FIRMWARE? after a you change the layout you have to FLASH your device

MrAlez said:
have you try installing a OFFICIAL STOCK FIRMWARE? after a you change the layout you have to FLASH your device
Click to expand...
Click to collapse
But how can I install a official stock firmware? I cannot open my phone. I can only enter in APX mode.
EDIT:
I managed to complete the layout change, but the phone still doesn't turn on. I tried to reinstall the stock rom with SmartFlash but it gave me an error at some point.

username10000 said:
But how can I install a official stock firmware? I cannot open my phone. I can only enter in APX mode.
EDIT:
I managed to complete the layout change, but the phone still doesn't turn on. I tried to reinstall the stock rom with SmartFlash but it gave me an error at some point.
Click to expand...
Click to collapse
search for a KDZ GB file if you changed to the OLD Layout, then use AIO to restore the KDZ and follow all the instruction, then you will have your phone with the stock rom

MrAlez said:
search for a KDZ GB file if you changed to the OLD Layout, then use AIO to restore the KDZ and follow all the instruction, then you will have your phone with the stock rom
Click to expand...
Click to collapse
I have the new layout. I tried to restore the KDZ with the off-line LG tool but it kept saying that to connect the phone to the computer. I also tried with the SmartFlash tool but it kept timing out.
EDIT:
I did it. Thanks for the help.

username10000 said:
I have the new layout. I tried to restore the KDZ with the off-line LG tool but it kept saying that to connect the phone to the computer. I also tried with the SmartFlash tool but it kept timing out.
EDIT:
I did it. Thanks for the help.
Click to expand...
Click to collapse
No problem mate! I'm Glad i helped you !

I have a paperweights, help...

I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Install the CWM by room (room enox iodak08 +), I can enter the bootloader, installing, when reboot the sistem entering the boot but does not start with the system and back to CWM after being taken. I can not get into the room and I can get into CWM. I've done factory reset and wipecache, I returned instal to the room, and nothing, enters the boot but does not start with the room.
I'm in a tricky situation, I stopped to have a mobile phone and I stick one paperweights. Need a little help.

Manholas said:
I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Install the CWM by room (room enox iodak08 +), I can enter the bootloader, installing, when reboot the sistem entering the boot but does not start with the system and back to CWM after being taken. I can not get into the room and I can get into CWM. I've done factory reset and wipecache, I returned instal to the room, and nothing, enters the boot but does not start with the room.
I'm in a tricky situation, I stopped to have a mobile phone and I stick one paperweights. Need a little help.
Click to expand...
Click to collapse
As always - flash a kdz and start from scratch if you can't get it working. And ... SEARCH

SimonTS said:
As always - flash a kdz and start from scratch if you can't get it working. And ... SEARCH
Click to expand...
Click to collapse
I can not get the pc to recognize the phone. I already have the KDZ file (V20A_00.kdz)

Manholas said:
I can not get the pc to recognize the phone. I already have the KDZ file (V20A_00.kdz)
Click to expand...
Click to collapse
Install or reinstall latest drivers from LG and try again when it does'nt work change usb port or try it on other PC.
Good Luck..

as I am in CWM recovery, removed the sd card and put a room.zip and flash. Did the installation but when "reboot sistem" back to cwm recovery.

The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?

Manholas said:
The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers

Manholas said:
The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
As you stated in your first post...
Manholas said:
I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Click to expand...
Click to collapse
It has been stated time and time again that your must NEVER carry out a vendor OTA on a rooted or modified device. It causes a problem 90% of the time as the OTA has no flexibility to deal with something it isn't expecting to find - so you get exactly what you have.
Just be thankful that it is almost impossible to hard-brick our device or you really would have a paperweight. Instead you just need to search and read a little to get it back up and running.

Flying_Bear said:
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers
Click to expand...
Click to collapse
If you turn on the mobile it goes into CWM recovery. The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?

SimonTS said:
As you stated in your first post...
It has been stated time and time again that your must NEVER carry out a vendor OTA on a rooted or modified device. It causes a problem 90% of the time as the OTA has no flexibility to deal with something it isn't expecting to find - so you get exactly what you have.
Just be thankful that it is almost impossible to hard-brick our device or you really would have a paperweight. Instead you just need to search and read a little to get it back up and running.
Click to expand...
Click to collapse
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks

Flying_Bear said:
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers
Click to expand...
Click to collapse
Manholas said:
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks
Click to expand...
Click to collapse
As @Flying_Bear has already said to you...

Manholas said:
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks
Click to expand...
Click to collapse
You need to get your PC to recognise the phone, thats the first step in this repair (unless the usb port is broken, there's no reason why it wont recognise, whats your OS and version, usb 2 or 3?)
why not put cm10.1 on a microsd and flash it from there?

JoinTheRealms said:
You need to get your PC to recognise the phone, thats the first step in this repair (unless the usb port is broken, there's no reason why it wont recognise, whats your OS and version, usb 2 or 3?)
why not put cm10.1 on a microsd and flash it from there?
Click to expand...
Click to collapse
it still won't work, after upgrading it ota while having custom recovery installed, a person will be locked to recovery for some reason (atleast other people were). the only way to fix it that i know of is to reflash a kdz
Manholas said:
If you turn on the mobile it goes into CWM recovery. The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
cmon, pay some attention you don't need to turn on the phone, or boot into the system itself to boot into s/w mode. now, there are tons (like 3 or 4 guides, plus many other topics opened by people with exact same problem like you) threads that tell you what to do (hint: figure out how to boot into s/w mode), so i'll let you search around for the guide.

I suggest using this method: http://forum.xda-developers.com/showthread.php?t=2682146
It's easier, faster and safer than flashing a .kdz file. (Plus, it tells you how to get into the s/w upgrade mode!)
Greetings from my Nexus 7 FHD!

balloon27 said:
I suggest using this method: http://forum.xda-developers.com/showthread.php?t=2682146
It's easier, faster and safer than flashing a .kdz file. (Plus, it tells you how to get into the s/w upgrade mode!)
Greetings from my Nexus 7 FHD!
Click to expand...
Click to collapse
I think this method also flashes a kdz, but does it automatically for you. But yeah, this one is easier than manually flashing. Thanks for posting it
Also, thiy method will format internal sd card. My suggestion is to do a data/system format from cwm before you go in to flashing a kdz, either manually or automatically, so you don't end up with formatted internal sd card

A big thanks to SimonTS, JoinTheRealms, Flying_Bear and balloon27. This is a fantastic forum and you guys are spectacular. Due to professional reasons only going back to the forum after seven days, I go to the sea and I'm without net. Got this getaway just to thank you for the care provided, the mobile phone is the same and will just touch it after a week. Once again, thank you very much.

I just make the process advised by balloon27 (http://forum.xda-developers.com/show....php?t=2682146). I have my 4X hd back .... yupi, yupi, yupi, yupi, yupi, ..... you guys are just the greatest. Once again a big thank you all of you. The 4X HD is working like a charm, a thank-you to the forum.

[Q] D405N Bootloop - please help me :)

This is the first time I write here, because I do not know. My cell phone is in bootloop. I can not get into cwm and reset the data did not help. SDK does not work - fastboot writes that waits on the device. LG Support tool stops me at 4%(and yes I install LG drivers). I tried almost all tutorials here and neither helped. Does anyone have any idea?
Sorry for my english.

Yazyyk said:
This is the first time I write here, because I do not know. My cell phone is in bootloop. I can not get into cwm and reset the data did not help. SDK does not work - fastboot writes that waits on the device. LG Support tool stops me at 4%(and yes I install LG drivers). I tried almost all tutorials here and neither helped. Does anyone have any idea?
Sorry for my english.
Click to expand...
Click to collapse
What did you do before the bootloop happened?

razoract said:
What did you do before the bootloop happened?
Click to expand...
Click to collapse
I installed Chainfire 3D from the store. Subsequently wanted to restart and I was in bootloop. :/

Yazyyk said:
I installed Chainfire 3D from the store. Subsequently wanted to restart and I was in bootloop. :/
Click to expand...
Click to collapse
Are you on a custom ROM?
You have CWM installed? Why can't you boot into it?
You can always try a to flash KDZ here if nothing works.

razoract said:
Are you on a custom ROM?
You have CWM installed? Why can't you boot into it?
You can always try a to flash KDZ here if nothing works.
Click to expand...
Click to collapse
As I wrote .. I have CWM installed, but it will not let me in there. It always skips. And I had CyanogenMod. KDZ flash I always stop at 4% .. The instructions I tried

Yazyyk said:
As I wrote .. I have CWM installed, but it will not let me in there. It always skips. And I had CyanogenMod. KDZ flash I always stop at 4% .. The instructions I tried
Click to expand...
Click to collapse
People reported being stuck at 4% when they had a corrupted KDZ.
Maybe try downloading the KDZ again and flash it.
Other than that, no idea...

razoract said:
People reported being stuck at 4% when they had a corrupted KDZ.
Maybe try downloading the KDZ again and flash it.
Other than that, no idea...
Click to expand...
Click to collapse
After re-downloading KDZ file still not working..

Solve this problem :d
Yazyyk said:
After re-downloading KDZ file still not working..
Click to expand...
Click to collapse
SOLUTION 100%
press the keys
volume and less power to the LG logo release and immediately press again the keys until check white lettering telling you to format all down with less volume key and click the power button to agree to the choice you're finally in a recovery and you can install CyanogenMod: D
-lg L90 group: D https://www.facebook.com/groups/1414818918778253/

But I wrote that I can not get there. When you confirm 2x so, it appears to me again lg logo. Thats the problem..

solve problem pt2 xD
Yazyyk said:
But I wrote that I can not get there. When you confirm 2x so, it appears to me again lg logo. Thats the problem..
Click to expand...
Click to collapse
Shut down your LG l90
Pressing vol - and connect USB
Enter in bootdownloading
Check tutorial install stock ROM.

DevelopersROMTeam said:
Shut down your LG l90
Pressing vol - and connect USB
Enter in bootdownloading
Check tutorial install stock ROM.
Click to expand...
Click to collapse
Heh I stuck at 4% ...

Yazyyk said:
Heh I stuck at 4% ...
Click to expand...
Click to collapse
Flashing the KDZ does seem to be the only possibility left for you though.. Try installing twrp 2.8.0.0 (can be found in development threads) through adb (while in download mode? turn phone off and connect with volume down pressed) and see if you can flash CM using twrp. Also try to download the flasher again. Did you remove the old folder in the hidden appdata folder as stated in the KDZ tut? Just follow it step by step from the beginning if the twrp thing doesn't work for you, doing a clean download of all the needed files. I've flashed the KDZ many times myself and never had any problems myself, so this is all the advice I can give you..

LG G4 H811 (T-Mobile) bricked

Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!

Mine is doing the same thing and I am getting errors on 9% on both versions of tools version 2014 and 2016. No one has an idea why? I have done this unit before what out any problems!

Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk

dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
This is what solved the issue for me. I simply had the wrong KDZ. The 20o is the one I needed.

My lg g4 got the fault in the system where it stuck in the bootloader and all I did was us lg up and kdz 10n and the phone didn't boot but I was able to return it and get a phone because when you do that your deleted everything off it and making it to where it was when it came out of the box

dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk

otto68 said:
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
you may have the infamous bootloop if you dont know do a search lg g4 bootloop... if so you must sent it to LG theres no way to fix it only LG.

mikespan said:
Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!
Click to expand...
Click to collapse
Message tungkick. He fix ANYTHING. He did mine. Mine was just like yours. He fixd it in ten minutes(from his computer)
Hit thnx if this helpd

otto68 said:
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
One small thing you might want to try first. Open LGUP with your phone connected in download mode. Choose the kdz file you want to use, then CLOSE LGUP (leaving the phone connected). Then reopen LGUP and the kdz file should still be selected. Then click Start.

mikespan said:
Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!
Click to expand...
Click to collapse
Have you try booting into download and open LG Bridge, software update and follow the steps it tells you?

Mine randomly restarted and entered a boot loop on the way into work today. I couldn't enter recovery. I just let it loop. When I checked it when I got to work about 30 minutes later, the screen was dark and I figured it had died. It was booted to my lock screen. The weird part is that all of my "recent apps" were still open. I'd taken the battery out several times. It now reboots without issue. Perhaps I slipped into an alternate universe where my phone didn't die on the way to work. #mandellaeffect

dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Hello,I got trouble connecting the LGUP. It tells me the device model is unknown so I can't choose it.I guess it's because I edited the build.prop:crying: Could you tell me how to rescue my phone?