Develop Bugs

[Q] Stuck LG Optimus G Boot Logo After Unlocking [SOLVED]

So, today I tried to root and unlock my device, it successfully rooted but after unlocking through FreeGee with TWRP 2.5.0.0, I turn OFF the device and it cannot get past the LG Boot logo. I have all the latest updates, firmwares, etc.

Try flashing a tennybin through LGNPST
http://forum.xda-developers.com/showthread.php?t=2230106

Thanks.
EFEXR said:
Try flashing a tennybin through LGNPST
http://forum.xda-developers.com/showthread.php?t=2230106
Click to expand...
Click to collapse
Thanks for the reply, really appreciate it. I wanted my phone to be rooted and unlocked tho, and TeenyBins is suppose to do that. But I do not understand the instructions, and how I understand it is-- Loading the downloaded .bin file in LGNPST? Is that correct?

First you must download the LGNPST program. I can't link it to you because we are not allowed to link the program. You can find the LGNPST link in the IRC, so ask there and they will link you. (make sure you read the steps that are given to you in the IRC on how to properly set up LGNPST)
Once LGNPST is running correctly on your computer, download the teenybin.
Select the correct .dll
Select the correct teenybin you want to flash.
Turn off phone. Connect phone to computer via USB.
Go into Download mode on your phone (Press and hold Vol Up+Vol Down+Power). Do this while phone is off and you will boot into download mode.
Now press start in LGNPST and it will flash the teenybin.
You will not be stuck in the LG boot logo anymore. I did these steps because I also was stuck a while back in the LG boot screen and the teenybin does help.

EFEXR said:
First you must download the LGNPST program. I can't link it to you because we are not allowed to link the program. You can find the LGNPST link in the IRC, so ask there and they will link you. (make sure you read the steps that are given to you in the IRC on how to properly set up LGNPST)
Once LGNPST is running correctly on your computer, download the teenybin.
Select the correct .dll
Select the correct teenybin you want to flash.
Turn off phone. Connect phone to computer via USB.
Go into Download mode on your phone (Press and hold Vol Up+Vol Down+Power). Do this while phone is off and you will boot into download mode.
Now press start in LGNPST and it will flash the teenybin.
You will not be stuck in the LG boot logo anymore. I did these steps because I also was stuck a while back in the LG boot screen and the teenybin does help.
Click to expand...
Click to collapse
I've already done those steps and in completely stock Android 4.1.2 ZVB. I understand now that you have to flash the TeenyBin .bin file in LGNPST to unlock the phone, which I had trouble doing on FreeGee which led me to softbrick and go back to stock and to reset it. My question is, does TeenyBin file root your phone or do I have to root it and then load TeenyBin file on LGNPST to unlock?

I believe that if you're completely stock (non-rooted) and you flash a teenybin once you are in recovery. TWRP will root for you.
Don't take my word for it, but I believe that one of those devs that worked on the teenybin said that.

EFEXR said:
I believe that if you're completely stock (non-rooted) and you flash a teenybin once you are in recovery. TWRP will root for you.
Don't take my word for it, but I believe that one of those devs that worked on the teenybin said that.
Click to expand...
Click to collapse
Back again and after 2 times of restocking with LG Tool. I followed this guide to root and unlock (http://forum.xda-developers.com/showthread.php?t=2050582). Rooting seems to work 100% with this guide but after unlocking with FreeGee, I shut down my phone and LG Boot seems to just be looping forever... SO, anyways, I am rooted again and wanted to see if using TeenyBins will unlock my phone... Im afraid of anymore bricks and possibly a permanent one. Should I go flash it? Also I'm new to the rooting and unlocking thing and I have a bad English so please bear with me.

your issue is you need to "SBL unlock"
so you can either use TeenyBin AltBin or just go all the way back to stock.. then using FreeGee app.. open it.. hit menu button > select "sbl unlock" > get code > enter code > then unlock like normal.
if you want to use teenybin but plan on staying stock... id suggest "TeenyBin ZVBin". the other teenybin files are more for fixing softbrick/unlocking.. and then getting u into twrp recovery to flash a custom rom zip.

autoprime said:
your issue is you need to "SBL unlock"
so you can either use TeenyBin AltBin or just go all the way back to stock.. then using FreeGee app.. open it.. hit menu button > select "sbl unlock" > get code > enter code > then unlock like normal.
if you want to use teenybin but plan on staying stock... id suggest "TeenyBin ZVBin". the other teenybin files are more for fixing softbrick/unlocking.. and then getting u into twrp recovery to flash a custom rom zip.
Click to expand...
Click to collapse
I am still rooted and locked so u mean all i have to do is run freegee app and select sbl to unlock? Doesn't FreeGee only work when rooted? then why do u want me to go back to stock and run freegee?
all i wanna do btw when I unlock is load this rom (http://forum.xda-developers.com/showthread.php?t=2219393) please help and guide me to unlock and after that loading the rom is up to me. I've loaded a rom before on my first gen kindle.

Hitsugaya111 said:
I am still rooted and locked so u mean all i have to do is run freegee app and select sbl to unlock? Doesn't FreeGee only work when rooted? then why do u want me to go back to stock and run freegee?
all i wanna do btw when I unlock is load this rom (http://forum.xda-developers.com/showthread.php?t=2219393) please help and guide me to unlock and after that loading the rom is up to me. I've loaded a rom before on my first gen kindle.
Click to expand...
Click to collapse
Just took the risk of unlocking using SBL unlock... should i restart my phone -_- I'm afraid I might hard brick it or stuck on a loop of Lg logo

Hitsugaya111 said:
I am still rooted and locked so u mean all i have to do is run freegee app and select sbl to unlock? Doesn't FreeGee only work when rooted? then why do u want me to go back to stock and run freegee?
all i wanna do btw when I unlock is load this rom (http://forum.xda-developers.com/showthread.php?t=2219393) please help and guide me to unlock and after that loading the rom is up to me. I've loaded a rom before on my first gen kindle.
Click to expand...
Click to collapse
i was under impression u couldnt boot.
if you want to use the rom you linked...
download the rom zip AND gapps zip... stick them on internal sdcard... power off phone and boot into Download Mode... flash LS970 TeenyBin AltBin. after you flash teenybin altbin your phone will reboot at 67% then probably get stuck at boot. power off and boot into fastboot(vol up + power).. then boot into recovery from there.
once inside twrp recovery.. do a factory reset.. then flash rom zip.. then flash gapps zip... reboot.

autoprime said:
i was under impression u couldnt boot.
if you want to use the rom you linked...
download the rom zip AND gapps zip... stick them on internal sdcard... power off phone and boot into Download Mode... flash LS970 TeenyBin AltBin. after you flash teenybin altbin your phone will reboot at 67% then probably get stuck at boot. power off and boot into fastboot(vol up + power).. then boot into recovery from there.
once inside twrp recovery.. do a factory reset.. then flash rom zip.. then flash gapps zip... reboot.
Click to expand...
Click to collapse
Holy cow... Thanks for the SBL Unlock I got everything working! Finally I can load this rom Thnak you again.

teeny bin rocks
Teeny bin saved my booty twice it rocks

:victory: The application helped restore my phone back to normal after I used the orginial stock bin, but after I used the teenybin and flashed Vanilla Rootbox I noticed my battery life drains a lot faster than usual. My usage on the phone is REALLY heavy like, it would last up to 6 hours and I recharge it when it hits 60% while I'm in class, (I'm a senior at high school).. I can admit I mess up my battery life. Is there a way to fix it?

How to root the g510-200

to root your g510-200
Step 1: download and install Huawei drivers on your pc
Step 2: unlock your bootloader at this site http://www.huaweidevice.com/worldwide/servicePolicy.do?method=preUnlock you will have to wait a day or so for your code. follow instructions on that website to unlock your bootloader.
Step 3: download
installTWRPg510.zip
Click to expand...
Click to collapse
OR
installCWMg510.zip
Click to expand...
Click to collapse
and extract to desktop.
Step 4: go to settings on your phone, enable usb debugging and turn fast boot off. Now connect you phone to your pc in fastboot mode (start phone while holding volume down to enter fastboot mode. phone will stay on boot animation) go to the folder on your desktop and click the install-windows batch file. press any key to reboot. you now have cwm or twrp recovery installed.
Step 5: copy UPDATE-superSU.zip to your sd card and reboot phone into recovery by starting the phone while holding down the volume up button. choose install zip from sd card and flash
UPDATE-superSU.zip
Click to expand...
Click to collapse
your phone is now rooted. keep this file in your sd card because some custom roms don't have root and you will need to re-flash this file. if superSU doesnt show up in your apps just download it from marketplace its free.
Step 6: make a back up of your stock rooted rom before you start flashing any custom roms.

I have tested this myself!
I have a g510-0200 with b189 optus firmware and i rooted my phone this way. Then restored it to stock factory b173 rom then rooted it again. So it works very well on both firmwares. :good:

ROMS!!!!
There are plenty of roms to try here! http://www.modaco.com/topic/365268-all-custom-roms-for-huawei-ascend-y300g510/ you can flash y300 (u8833) roms on your g510 too. you can flash custom g510-0100 roms on your g510-0200 phone and visa versa as long as your flashing them in a custom recovery. However if you are downloading factory stock firmware from huawei and installing it via the dload method on your sd card you MUST have the correct firmware eg: g510-0200 on a g510-0200 phone. This is only what ive read and im not willing to brick my phone. correct me if im wrong?

Not able to get into TWRP or CWM
Hey there sonyachin!
I too have the same phone model as yours... Huawei Ascend G510-0200
I have rooted it using another method
But I can't seem to get it in CWM or TWRP...
Will I still able to use your method of getting TWRP or CWM without Unrooting and Re-Rooting again???
It will be really a great help if you can reply fast!!!
Im new to rooting so... Yeah...

Brick Huawei G510
i have an Huawei G510-0100 and unlock the bootloader, run CM11 on it, i came across swapper2 and do a swap on my phone and then after the second reboot i did, the whole screen turns into blue.can't get fastboot and recovery mode anymore. i've tried force updating and normal update with the firmware build number of my phone and so many others but none installed i keep getting failed. Please can anybody help me out on what to do to get my phone working again. i'll be verry grateful for dat, Thanks in advance.... i wish this G510 has a flashtool to recover it

when i try to flash it
it give me this massage,
sending, recovery <7168 kb>...OKAY
writing recovery... FAILED<remot: Commend not allowed>
pls solve this
presleyt9 said:
i have an Huawei G510-0100 and unlock the bootloader, run CM11 on it, i came across swapper2 and do a swap on my phone and then after the second reboot i did, the whole screen turns into blue.can't get fastboot and recovery mode anymore. i've tried force updating and normal update with the firmware build number of my phone and so many others but none installed i keep getting failed. Please can anybody help me out on what to do to get my phone working again. i'll be verry grateful for dat, Thanks in advance.... i wish this G510 has a flashtool to recover it
Click to expand...
Click to collapse

[Q] Phone will not turn on!

So I flashed cm 10.2 on my Galaxy S3 AT&T, and forgot to flash the right gapps, so I did that, except I forgot to do a factory reset when I flashed them. When I went to reboot, my phone would not turn on, nor get into recovery mode. It keeps showing the Samsung logo with the little CyanogenMod figure underneath it, and keeps vibrating repeatedly while trying to turn on. This is not a boot loop (I think) because my phone doesnt even get as far as the arrow animation that keeps going in circles. All I can do is access download mode. Can anyone help me? I have tried taking the battery out multple times and waiting for the battery to charge and then trying to turn it on, to no success.

rohanr014 said:
So I flashed cm 10.2 on my Galaxy S3 AT&T, and forgot to flash the right gapps, so I did that, except I forgot to do a factory reset when I flashed them. When I went to reboot, my phone would not turn on, nor get into recovery mode. It keeps showing the Samsung logo with the little CyanogenMod figure underneath it, and keeps vibrating repeatedly while trying to turn on. This is not a boot loop (I think) because my phone doesnt even get as far as the arrow animation that keeps going in circles. All I can do is access download mode. Can anyone help me? I have tried taking the battery out multple times and waiting for the battery to charge and then trying to turn it on, to no success.
Click to expand...
Click to collapse
If you can get to download mode, try flashing a stock file via Odin to reset your phone to working conditions. Thereafter, you can go back to a custom ROM. Would you recall what firmware version you were on prior to flashing CM? If it was anything older than 4.3 (e.g. 4.1.2, 4.1.1), you can Odin back to 4.1.1. If you already had 4.3, you would need to Odin back to 4.3 following the instructions posted in the thread below ..
http://forum.xda-developers.com/showthread.php?t=2722660&page=3. Scroll through carefully for the file you need for 4.3. Otherwise, you can find the Odin flash-able 4.1.1 stock file on sammobile.com

Larry2999 said:
If you can get to download mode, try flashing a stock file via Odin to reset your phone to working conditions. Thereafter, you can go back to a custom ROM. Would you recall what firmware version you were on prior to flashing CM? If it was anything older than 4.3 (e.g. 4.1.2, 4.1.1), you can Odin back to 4.1.1. If you already had 4.3, you would need to Odin back to 4.3 following the instructions posted in the thread below ..
http://forum.xda-developers.com/showthread.php?t=2722660&page=3. Scroll through carefully for the file you need for 4.3. Otherwise, you can find the Odin flash-able 4.1.1 stock file on sammobile.com
Click to expand...
Click to collapse
I have looked at the thread but I am new to all this stuff, how do I flash using Odin?

rohanr014 said:
I have looked at the thread but I am new to all this stuff, how do I flash using Odin?
Click to expand...
Click to collapse
First you will need to download and extract the Odin tool. Odin is Samsung's tool for flashing (installing) firmware. You can download Odin v3.07 via the link below ...
http://www.mediafire.com/download/772dlmuaxfgm0x2/Odin307.zip
Once you have downloaded it, extract the files and look for the executable file (*.exe). That's the one you will need to run to open Odin.
We also need to identify the appropriate firmware to flash. You did not answer the earlier question on what Android version your device was on prior to flashing the custom firmware. This is important to let us know which official version you can safely revert to (4.1.1 or 4.3). If you were an older version than 4.3, you should flash 4.1.1 but if you were already on 4.3, then you should stick to this. Either way, you can download the 4.1.1 file via this link .. http://rapidgator.net/file/681a28a5...ATT_I747UCDLK3_I747ATTDLK3_Original.zip.html?
Download the files to your PC and extract.
To flash via Odin, open Odin.exe on your PC
Click on the PDA tab and navigate to the file you just extracted. Select the file ending in *.tar.md5 (For 4.1.1, this would be I747UCDLK3_I747ATTDLK3_I747UCDLK3_HOME.tar.md5). Make sure this file is showing in the PDA tab.
Boot your phone into download mode and connect to your computer with a good quality micro-USB cable. Make sure your phone is recognized by Odin. You should see the message Added in the left pane.
Do not check or uncheck any boxes other than the defaults.
Click on start and waiting for firmware flashing to end and you see Pass. Your phone will reboot at this stage. You can disconnect from your PC
However, for 4.3, it looks like the Odin flash-able file has been taken offline so you would need to this via custom recovery. That's a different process so please revert on your Android version first so we'll know whether this is required or not

I was running JB 4.3, and I am planning to flash 4.1.1 as you've said. I am downloading that rom from the SamMobile site, however it is taking quite a while...
I understand that it shouldnt be a two minute download, however its been 2 hours and only 210 MB has been downloaded.
Also, I have Odin v3.09, which in the place of a PDA tab, there is an AP tab... should I place the file in the AP tab?

rohanr014 said:
I was running JB 4.3, and I am planning to flash 4.1.1 as you've said. I am downloading that rom from the SamMobile site, however it is taking quite a while...
I understand that it shouldnt be a two minute download, however its been 2 hours and only 210 MB has been downloaded.
Also, I have Odin v3.09, which in the place of a PDA tab, there is an AP tab... should I place the file in the AP tab?
Click to expand...
Click to collapse
Please do not try to flash 4.1.1 if you were on JB 4.3 otherwise you could hard brick your phone due to the secure bootloader in 4.3. You need to revert to stock 4.3 via custom recovery. You may go to the thread below for instructions...
http://forum.xda-developers.com/showthread.php?t=2658486
1) Flash custom recovery (I would suggest TWRP because of the GUI). In Odin v3.09 use the AP tab in place of PDA. You can download TWRP for your device via the link below ...
http://techerrata.com/file/twrp2/d2att/openrecovery-twrp-2.6.3.1-d2att.tar
2) Download the stock restore zip file in the thread above and copy to your (micro) SD card. The (TWRP) stock restore zip is also available via the following link .... http://www.mediafire.com/download/30idxwhg2hidxx2/ATT_I747_UCUEMJB_StockRestore_2282014.zip
3) Flash the custom recovery file via Odin. Remove battery immediately the flashing is complete to stop reboot.
4) Place the SD card with the recovery file in your phone
5) Reboot into recovery mode by simultaneously holding down the Volume Up, Home and Power buttons. Hold all buttons until you see the blue flash across your screen, then release power button but keep holding the volume up and home buttons until the Android image appears.
6) Select install and navigate to the stock restore file. Swipe across screen to flash and wait for installation to be complete.
7) Clear cache/dalvik and reboot to system
If you are unable to boot to recovery, then you may still try flashing using Odin v3.09. You may follow the instructions in the thread below and load all the respective partitions. You would need to use the version that has separate flashable files as the single *.tar file has been taken down.

Larry2999 said:
Please do not try to flash 4.1.1 if you were on JB 4.3 otherwise you could hard brick your phone due to the secure bootloader in 4.3. You need to revert to stock 4.3 via custom recovery. You may go to the thread below for instructions...
http://forum.xda-developers.com/showthread.php?t=2658486
1) Flash custom recovery (I would suggest TWRP because of the GUI). In Odin v3.09 use the AP tab in place of PDA. You can download TWRP for your device via the link below ...
http://techerrata.com/file/twrp2/d2att/openrecovery-twrp-2.6.3.1-d2att.tar
2) Download the stock restore zip file in the thread above and copy to your (micro) SD card. The (TWRP) stock restore zip is also available via the following link .... http://www.mediafire.com/download/30idxwhg2hidxx2/ATT_I747_UCUEMJB_StockRestore_2282014.zip
3) Flash the custom recovery file via Odin. Remove battery immediately the flashing is complete to stop reboot.
4) Place the SD card with the recovery file in your phone
5) Reboot into recovery mode by simultaneously holding down the Volume Up, Home and Power buttons. Hold all buttons until you see the blue flash across your screen, then release power button but keep holding the volume up and home buttons until the Android image appears.
6) Select install and navigate to the stock restore file. Swipe across screen to flash and wait for installation to be complete.
7) Clear cache/dalvik and reboot to system
If you are unable to boot to recovery, then you may still try flashing using Odin v3.09. You may follow the instructions in the thread below and load all the respective partitions. You would need to use the version that has separate flashable files as the single *.tar file has been taken down.
Click to expand...
Click to collapse
Just to reaffirm since I am not very experienced and do not wish to break my phone:
1) Download the twrp 2.6.3.1 d2att.tar file and flash it to my phone in download mode via Odin.
2)Download zip file on my computer, and take out the microSD from my phone, and copy the file to my microSD.
3) I am confused here because you stated to flash the custom recovery in step 1... anyways when flash is complete I immediately take my battery out to stop the reboot.
4) I insert the microSD with the zip file containing the stock rom
5) Now I should be able to reboot into recovery mode on my phone, though I could not beforehand.
6) Once in Recovery, go to Install and flash the custom stock.
7)Wipe dalvik cache and cache, and reboot to system.
Please clear up any confusion, I am very cautious and inexperienced. Sorry.

rohanr014 said:
Just to reaffirm since I am not very experienced and do not wish to break my phone:
1) Download the twrp 2.6.3.1 d2att.tar file and flash it to my phone in download mode via Odin.
2)Download zip file on my computer, and take out the microSD from my phone, and copy the file to my microSD.
3) I am confused here because you stated to flash the custom recovery in step 1... anyways when flash is complete I immediately take my battery out to stop the reboot.
4) I insert the microSD with the zip file containing the stock rom
5) Now I should be able to reboot into recovery mode on my phone, though I could not beforehand.
6) Once in Recovery, go to Install and flash the custom stock.
7)Wipe dalvik cache and cache, and reboot to system.
Please clear up any confusion, I am very cautious and inexperienced. Sorry.
Click to expand...
Click to collapse
Yes, you are correct. What you are doing in step 1) is flashing custom recovery to your phone. Custom recovery allows you install zip files to your phone and is more functional and versatile than stock recovery.
The zip file referred to in 2) is the stock restore zip. This is the file you will be flashing from (custom) recovery and is the one from the following link (http://www.mediafire.com/download/30...re_2282014.zip). Once you have downloaded it to your computer, save to an SD card so you can insert it into your phone to flash.
The battery pull is after flashing the TWRP file. You then have to boot into (custom) recovery mode to flash the stock restore zip from the SD card.
You are OK on the other steps. Trust this clarifies. Let me know if you encounter any issues.

I have done everything you said, I flashed the TWRP file via Odin, and then i copied the stock zip file to my microSD and put it back into my phone.
I am able to boot into recovery, and everytime I go to flash the stock rom, midway through the flash my phone starts rebooting. Even if I try to clear dalvik cache and cache first, once they are cleared my phone automatically starts rebooting. What do I do now? The zip file is there and I can reach TWRP recovery, but the flash wont complete because my phone starts rebooting. I am at a 100% battery right now so I do not know what the cause of this could be. Please help, I cannot tell what I did wrong if I did do anything wrong.

Try installing the latest version of Philz Touch for the d2lte. Some people have good results with TWRP. I found Philz Touch, which is based on CWM, better for my purposes. Philz can be installed via Odin as long as you down the tar version.
http://goo.im/devs/philz_touch/CWM_Advanced_Edition/d2lte

Larry2999 said:
Yes, you are correct. What you are doing in step 1) is flashing custom recovery to your phone. Custom recovery allows you install zip files to your phone and is more functional and versatile than stock recovery.
The zip file referred to in 2) is the stock restore zip. This is the file you will be flashing from (custom) recovery and is the one from the following link (http://www.mediafire.com/download/30...re_2282014.zip). Once you have downloaded it to your computer, save to an SD card so you can insert it into your phone to flash.
The battery pull is after flashing the TWRP file. You then have to boot into (custom) recovery mode to flash the stock restore zip from the SD card.
You are OK on the other steps. Trust this clarifies. Let me know if you encounter any issues.
Click to expand...
Click to collapse
Ok, something very strange has occured.
Since my phone would not flash the original stock rom, I decided to go ahead and flash CM10.2 and its gapps to see if it the problem was with my phone or with the file. Everything worked fine and my phone booted and ran CM10.2, but then I had absolutely no signal anywhere. I could confirm something was wrong because there were multiple AT&T users near me that had good signal. So then I went to flash the stock rom, and it worked. I cleared dalvik and cache like normal after all these flashes and performed factory resets, however when I flashed this stock rom, it worked but 1) I could not connect to Wifi 2) I could not use apps with root requirements, and Root Checker said I did not have root access, even though I had definitely rooted my phone earlier when I first ran CM11 and CM10.2
Should I root again? Please help, my phone is working and I can go into download, stock recovery, and normal mode.

audit13 said:
Try installing the latest version of Philz Touch for the d2lte. Some people have good results with TWRP. I found Philz Touch, which is based on CWM, better for my purposes. Philz can be installed via Odin as long as you down the tar version.
http://goo.im/devs/philz_touch/CWM_Advanced_Edition/d2lte
Click to expand...
Click to collapse
The whole idea was to get your phone back to working state. Thereafter, you can build up on the food chain. The stock file you flashed restores the phone to near factory settings including a complete stock (official) firmware, stock recovery, resetting the flash counter. Unfortunately, it also removes root as well. You can, however, re-root in a number of ways. You may also do as Audit advised and reflash Philz Touch custom recovery which would allow you flash any custom ROM of your choice. You do not necessarily need to root to flash custom ROMs if you have custom recovery. However, if you need to use apps which require root, I would recommend you try SafeRoot (http://forum.xda-developers.com/showthread.php?t=2565758). Very easy to use and worked quite well for me.
Finally, you should be able to restore your Wi-Fi from settings. Wi-Fi setup should have happened during the set-up process upon reboot after the firmware installation but sometimes this step is skipped. If you go to Settings, you should be able to enable and set up Wi-Fi.

What to do when LG Flash Tool doesn't work

I was on a stock based ROM (my phone would not boot a cm based one for some reason) but can't remember which one. So I backed everything up including a backup of my nandroid and put it all on my sd card so I can downgrade to KK. I followed the instructions (from where I can't remember because I've been to so many threads and sites for a fix) using LG Flash Tool and downloaded the 10d .tot file along with the .dll file. All went fine until the 89% mark and came up the error "can't communicate with device". Well ok I did it again... same thing. Started my massive search online to find a fix. I tried a mod.dll, an LGUP_8974.dll and found another .dll I can't find right now. But I can get up to 94% with the mod and LGup ones. Once the error was "unable to get miniOS confirmation boot" or something like that but that only happens when doing an upgrade dl. I've tried the board DL and upgrade DL. Now on the modded .dlls on upgrade dl, when it tries to boot the led will flash like normal when booting but I'm just stuck in a boot loop. So in short...
No custom recovery,
Boot loop at LG logo
uninstalled/reinstalled drivers
used every combination of .dlls and action mode in flashtools there is. Even tried older versions.
I do have download mode.
I can get to stock recovery and do a reset but that does nothing.
If I can get twrp on it I can restore my nandroid on my sd card. Any help would be appreciated.

yogi-4 said:
I was on a stock based ROM (my phone would not boot a cm based one for some reason) but can't remember which one. So I backed everything up including a backup of my nandroid and put it all on my sd card so I can downgrade to KK. I followed the instructions (from where I can't remember because I've been to so many threads and sites for a fix) using LG Flash Tool and downloaded the 10d .tot file along with the .dll file. All went fine until the 89% mark and came up the error "can't communicate with device". Well ok I did it again... same thing. Started my massive search online to find a fix. I tried a mod.dll, an LGUP_8974.dll and found another .dll I can't find right now. But I can get up to 94% with the mod and LGup ones. Once the error was "unable to get miniOS confirmation boot" or something like that but that only happens when doing an upgrade dl. I've tried the board DL and upgrade DL. Now on the modded .dlls on upgrade dl, when it tries to boot the led will flash like normal when booting but I'm just stuck in a boot loop. So in short...
No custom recovery,
Boot loop at LG logo
uninstalled/reinstalled drivers
used every combination of .dlls and action mode in flashtools there is. Even tried older versions.
I do have download mode.
I can get to stock recovery and do a reset but that does nothing.
If I can get twrp on it I can restore my nandroid on my sd card. Any help would be appreciated.
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Click to collapse
If you boot into download mode and delete the laf partition (download mode) you will get fastboot next time that you enter download mode and you can use fastboot to flash and/or boot TWRP. Note make sure that you have a backup of laf first if you ever want download mode back. The following is for another LG phone but it should work. http://forum.xda-developers.com/showpost.php?p=60699787&postcount=1932 the backed up laf in the post wont work but you can always extract it from a tot file for your device.
Hope that this helps.

That worked!! I flashed a rom that had an aroma installer and it didn't boot, same boot loop. Flashed another aroma rom and it booted perfectly!! Thanks again.
Edit: A beer is on it's way!

yogi-4 said:
That worked!! I flashed a rom that had an aroma installer and it didn't boot, same boot loop. Flashed another aroma rom and it booted perfectly!! Thanks again.
Edit: A beer is on it's way!
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Thanks for the donation.

LG G4 - Boot problem - Download mode works

Hi,
I have problem with my LG G4 (H815). I has stacked at boot screen and sometimes it is able to boot to home screen but after a few second of work, it restarts again. Few days ago the situation was the same but after a few attempts it booted normally. I can normally enter recovery mode and download mode.
Has anyone idea what to do to recover data (photos) from it?
I will probably try to flash stock firmware via LG Tool but I don't know which version is now installed and I cannot find a proper kdz file.
Can anyone help to find a proper kdz file for this phone? and give a link to quide how to flash phone without wipe data?

kara mustafa said:
Hi,
I have problem with my LG G4 (H815). I has stacked at boot screen and sometimes it is able to boot to home screen but after a few second of work, it restarts again. Few days ago the situation was the same but after a few attempts it booted normally. I can normally enter recovery mode and download mode.
Has anyone idea what to do to recover data (photos) from it?
I will probably try to flash stock firmware via LG Tool but I don't know which version is now installed and I cannot find a proper kdz file.
Can anyone help to find a proper kdz file for this phone? and give a link to quide how to flash phone without wipe data?
Click to expand...
Click to collapse
if you can boot into twrp connect usb and transfer all files data you need.
then flash stock.

raptorddd said:
if you can boot into twrp connect usb and transfer all files data you need.
then flash stock.
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Click to collapse
I don't have TWRP installed. If I have and access to download mode and stock recovery, is there any method that let me install TWRP to recovery data, if I can't boot to home screen?

kara mustafa said:
I don't have TWRP installed. If I have and access to download mode and stock recovery, is there any method that let me install TWRP to recovery data, if I can't boot to home screen?
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Click to collapse
o when you mentioned recovery i wasnt expecting the stock recovery.. so does your phone boot.? does it have the infamous bootloop when you see logo and it reboots again into a bootloop sometimes optimizing apps then reboots..?
if so i think the only way to recover data its to use the freezer method.. search for it... sorry
if its bootloop then its hardware and needs to be sent to LG just make sure the moisture strips arent allow to get losit or water.

is there any way to force bootloop???? with a kdz file or changing something with root permision ??? i need to send my phone to the SAT

juan272 said:
is there any way to force bootloop???? with a kdz file or changing something with root permision ??? i need to send my phone to the SAT
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Click to collapse
i would say strees the phone play heavy games under sunlight.. another way maybe to flash KDZ let it optimize then reflash again dont let it rest optimizing gets very hot..

kara mustafa said:
I don't have TWRP installed. If I have and access to download mode and stock recovery, is there any method that let me install TWRP to recovery data, if I can't boot to home screen?
Click to expand...
Click to collapse
You need to have an unlocked bootloader to do so.
What are the first 3 digits of your serial number (sticker behind battery)
If it starts with 5xx your chances are good to have the boot loop issue which is hardware related.
Try the freezer method to recover and send the device to LG for replacement.
.
Sent from my LG-H815 using XDA Labs