Develop Bugs

[Q] LG PRO E980 Stuck at CWM Recovery Screen

Hi,
I'm not very knowledgeable with this phone.
I updated the phone, but then it went into CWM-based Recovery screen and it won't let me get to the home screen. I have no idea what to do. Please help.

ogee87 said:
Hi,
I'm not very knowledgeable with this phone.
I updated the phone, but then it went into CWM-based Recovery screen and it won't let me get to the home screen. I have no idea what to do. Please help.
Click to expand...
Click to collapse
You have soft bricked your phone. The update will only work if NEITHER CWM or TWRP recoveries are installed. You must be on stock recovery for the update to work, otherwise you end up where you are - soft bricked.
Now you will have to help yourself. Either you are going to have to read and learn how to use LG Flash Tool to re-install a stock ROM, or you are going to have to use ADB to try and undo what you've done - see this post: http://forum.xda-developers.com/showpost.php?p=49370751&postcount=70
Also, be advised that if you restore your phone and then update while you are unrooted, the new update will prevent you from rooting your phone.

Thanks visionlogic for your replied. I almost updated before re-rooting it. You saved me! THANK!
visionlogic said:
You have soft bricked your phone. The update will only work if NEITHER CWM or TWRP recoveries are installed. You must be on stock recovery for the update to work, otherwise you end up where you are - soft bricked.
Now you will have to help yourself. Either you are going to have to read and learn how to use LG Flash Tool to re-install a stock ROM, or you are going to have to use ADB to try and undo what you've done - see this post: http://forum.xda-developers.com/showpost.php?p=49370751&postcount=70
Also, be advised that if you restore your phone and then update while you are unrooted, the new update will prevent you from rooting your phone.
Click to expand...
Click to collapse

[Q] Please get me Stock Bootloader from KDZ

Hi everyone.
I'm so frustrated for a week to get get back to Stock Recovery Menu from CWM Recovery. The problem is, I want to restore Stock Firmware for my LG Optimus G E973 but it won't work unless I role back to Stock Recovery Menu. I've been searching around for it but no luck. Now the only hope is to get Stock Recovery image and push it into the phone and I think the only ways to get it is, someone backup Stock Recovery from the same phone model or extract it from original Stock ROM image. I failed to do so. For the convenience to download the KDZ file, I uploaded it to Google Drive with the link below. I bag you, PLEASE, help me get Stock Recovery image from the .kdz file I uploaded for you. I will wait for your response every seconds and thank in advance.
https://drive.google.com/file/d/0B8G245x5wYw2a1VhTjVZQXdqOTQ

Why not just flash back the official kdz? The download mode works regardless you have stock recovery or CWM.

I did. it won't work. I used KDZ_FW_UPD_EN with .kdz file while putting my phone in Download Mode. Then the program restart the phone to proceed the installation but CWM recovery appear instead of stock recovery and nothing happen.

Read this
http://forum.xda-developers.com/showthread.php?t=2388440
[GUIDE] Flashing Original Firmwares >1GB / Unbrick Procedure (UPDATED 07/12/13)
this is all you need, back your data up then firstly you need " hard reset procedure " then flash kdz i used this too many time but dont forget it will erase all your data (sd card too)
Sent from my LG-E975 using xda app-developers app

Rexkh said:
I did. it won't work. I used KDZ_FW_UPD_EN with .kdz file while putting my phone in Download Mode. Then the program restart the phone to proceed the installation but CWM recovery appear instead of stock recovery and nothing happen.
Click to expand...
Click to collapse
You need to flash official full KDZ upgrade. What phone you have originally? F180 or E975? or some other? Wipe + Factory reset in recovery before putting into download mode. (The major nuisance with this set is all you can do is power button thingi and no battery pullouts.
TELLUS: http://tny.cz/98a22ec6
BELL/BWA: http://tny.cz/a0b914fc
BELL Mobility: http://tny.cz/dce80a93

I finally found the solution accidentally, Just manually set the phone in Download Mode for 2nd time when it stuck in fastboot mode. Bingo!

Stuck at boot

Hi hoping someone can help, I accidentally wrote the wrong file to my system partition and am stuck at smartwatch 3 logo.
i tried pc companion and it tells be there "no software available for my device" all i can get to is fastboot mode stock recovery is gone too
I wrote twrp to it but as of yet have not been able to launch it. its running 5.1.1 os and i cant remember build number other than it began with an L
Please help
ZR1

if you read this and know i have no hope please let me know that too please
seems like if i had stock partitions images i could flash using adb i"d be good yes?? no?

I do not have time to help right now, but since you can get to fastboot, you are probably fine. Find the stock 5.1.1 recovery and boot to it. Then sideload the latest update. You will be good to go.
The command in a terminal window is...
Code:
Fastboot boot <stock recovery.img>
Alternatively, you can boot to twrp and install a twrp flushable zip.
Good luck.

Lekofraggle thank you for your help.
I did what you said with img file from this thread http://forum.xda-developers.com/sma...50-version-t2988087/post62897403#post62897403
it wrote the img file but still just hangs at boot image, and i still cant get twrp to work after holding power button and choosing recovery option screen goes blank and then starts to boot and hangs at smartwatch 3 image
all the things i"ve rooted before in my life i"ve never screwed up this bad.

zr1 said:
Lekofraggle thank you for your help.
I did what you said with img file from this thread http://forum.xda-developers.com/sma...50-version-t2988087/post62897403#post62897403
it wrote the img file but still just hangs at boot image, and i still cant get twrp to work after holding power button and choosing recovery option screen goes blank and then starts to boot and hangs at smartwatch 3 image
all the things i"ve rooted before in my life i"ve never screwed up this bad.
Click to expand...
Click to collapse
Have you tried Sony Companion to repair your watch?
If you were running 5.1.1, then the recovery you mention is for 5.0.1, so that might be the reason why you can not boot into it. See if you can find the stock recovery for 5.1.1
I have used the following method a couple of times now to get me out of trouble after playing around with my SW3
http://forum.xda-developers.com/smartwatch-3/general/guide-roll-watch-to-previous-software-t3176801
You can then use the stock recovery you already have and update via OTA files to get it back to the latest firmware or via Sony Companion.

I had the exact same issue after I did fastboot flash using corrupt system.img (which wasn't a snapshot that could be flashed but rather a tarball). Since you have TWRP installed you can confirm this by trying to mount system partition in recovery mode. After it fails, connect to recovery via adb and view latest kernel messages (dmesg). It should show something like "failed to locate ext4 filesystem".
If this is your case, you can use TWRP restore function to restore system from your TWRP backup. It will then erase the partition, mkfs.ext4 and write the files from tarball. This did the trick for me.
(If you don't have backup, try looking for downloads in other threads here)
Edit: Re-read your post. Since your TWRP is broken, try hotbooting it using fastboot boot new_boot.img (you can take it here)

ebones thank you thank you thank you
I had downloaded new_boot img already so im not sure what i was doing wrong but i did what you said and she booted right into TWRP i now have to sideload the right update.zip file and run it in twrp correct?
edit; having trouble sideloading wear-supersu.zip what is the correct command?

GOT IT!!! I installed stock rom from this thread http://forum.xda-developers.com/sma...rom-repacked-stock-rom-swr50-version-t2988087 through TWRP and it works cant thank you guys enough
Thanks ZR1

[Brick phone] help needed

I have flashed many phones before my G4 and this is the first time I'm having to ask for help.
The firmware installed was AICP CM13, then the screen went green with a DemiGod message. I held the vol down button to reboot and it came back up. After a few restarts and green screens i figured I needed to reflash the firmware. I booted into Recovery and while wiping the device to flash a new firmware, TWRP crashed. After leaving it for half hour or so, I took the battery out to enter into TWRP so I can flash the new firmware. TWRP is no there to be seen. I hold down the vol down and power button, releasing power for second or two and choose to go into recovery. Every time the phone just gets stuck on the LG screen displaying "Bootloader state :Bootlader unlocked!".
In short, I have no firmware, the device has been wiped and TWRP doesn't seem to be working.
I have tried to flash a KDZ file (H81520A_00.kdz) using the flash guide here. This comes back as unsuccessful saying "connection to server failed". As shown below.
View attachment 3605673
The method to flash an .img file using cmd on the pc includes moving the 4gb .img file to the parent folder of the phone storage. I can't get to move any files whatsoever to my device so figured this method would not work.
Seems if I can somehow flash TWRP, then I should be able to install a new firmware.
Any help much appreciated.

Hi, Can you get an ADB connection to your phone, or get your phone into bootloader somehow. From there you could try 'fastboot boot recovery.img'?
If so, then from within TWRP you can flash twrp recovery so the recovery is then sorted. Then you could flash click here (the full version). This will then allow LG UP to find a connection. From there if you really wanted to can flash any KDZ as a proper reset. Hope it works buddy!!

rav101 said:
Hi, Can you get an ADB connection to your phone, or get your phone into bootloader somehow. From there you could try 'fastboot boot recovery.img'?
If so, then from within TWRP you can flash twrp recovery so the recovery is then sorted. Then you could flash click here (the full version). This will then allow LG UP to find a connection. From there if you really wanted to can flash any KDZ as a proper reset. Hope it works buddy!!
Click to expand...
Click to collapse
I can get into recovery but I am unsure as to how I could try 'fastboot boot recovery.img'. Would that be the same as flashing an img when the root method first came out?

AndHD2 said:
I can get into recovery but I am unsure as to how I could try 'fastboot boot recovery.img'. Would that be the same as flashing an img when the root method first came out?
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Click to collapse
Just to make sure you know. TWRP is your recovery. Your last message said you did not have TWRP?
When I first rooted my phone (and subsequently when I install a .kdz), I have to go into the bootloader and install TWRP. I personally do this by using the above command "fastboot boot recovery.img" with the recovery.img being placed on my computer in the same location as my adb installation. This command only boots up TWRP but does not flash it. I then flash twrp by having a copy of it on my external sd card. Within twrp you can select to flash zip, or there is an option to flash an image. I use this to flash twrp (from twrp... its a little inception like but it works). Once you have twrp up and running, you can install a rom. If you want to do flash a .kdz, I have found you need to be on a stock based rom in the first place hence why i referenced the v20a full system zip.
Hope that made sense.
Regards,
Ravi

It is late here and with me being tired I said recovery instead of download. I can boot into download mode but when I try to boot into recovery then it just goes straight to the LG splash screen and it will either remain in that screen or the green Demigod screen would come up.
I'm off to sleep and away from my laptop as I have to be up in 5 hours. Luckily I still have my Note 4 so at least I'm not without a phone in the morning. I will try the steps what you have suggested just as soon as I get back from work.
Many thanks

rav101 said:
Just to make sure you know. TWRP is your recovery. Your last message said you did not have TWRP?
When I first rooted my phone (and subsequently when I install a .kdz), I have to go into the bootloader and install TWRP. I personally do this by using the above command "fastboot boot recovery.img" with the recovery.img being placed on my computer in the same location as my adb installation. This command only boots up TWRP but does not flash it. I then flash twrp by having a copy of it on my external sd card. Within twrp you can select to flash zip, or there is an option to flash an image. I use this to flash twrp (from twrp... its a little inception like but it works). Once you have twrp up and running, you can install a rom. If you want to do flash a .kdz, I have found you need to be on a stock based rom in the first place hence why i referenced the v20a full system zip.
Hope that made sense.
Regards,
Ravi
Click to expand...
Click to collapse
I have finally got chance to sit down and have a go at performing the procedure listed above. I downloaded the adb and fastboot installation as outline here. It is the minimum to what this thread says I will need for my device. I moved the recovery.img to the installation location which were in Windows/programs files (x86)/Minimal adb and fastboot. I launched the program and typed in 'fastboot boot recovery.img'. I tried this in download mode, charging mode (phone off) and while on the LG flash screen where TWRP didnt load but in all cases I have had no response at all.
If someone can help the much appreciated.

AndHD2 said:
I have finally got chance to sit down and have a go at performing the procedure listed above. I downloaded the adb and fastboot installation as outline here. It is the minimum to what this thread says I will need for my device. I moved the recovery.img to the installation location which were in Windows/programs files (x86)/Minimal adb and fastboot. I launched the program and typed in 'fastboot boot recovery.img'. I tried this in download mode, charging mode (phone off) and while on the LG flash screen where TWRP didnt load but in all cases I have had no response at all.
If someone can help the much appreciated.
Click to expand...
Click to collapse
Hi @AndHD2, I'm sorry but I can't think of anything else

rav101 said:
Hi @AndHD2, I'm sorry but I can't think of anything else
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Click to collapse
I had another demigod type screen but this was grey and not green with less detail. However it did say it were a kernel error.
Is the handset still under warrenty with the bootloader unlocked. I have a feeling its not

RUU to Stock Android 7 (Sprint) Now TWRP wont boot

Title says it all. I RUU'd back to stock so I could get the proper N firmware from Sprint now that its released. That went fine but after sending TWRP to phone via ADB i can't get to recovery even though the ADB commands complete fine. It will sit there for a bit after choosing recovery and then reboot and go back to the main OS of the phone.
Any idea whats going on and how to fix this?
Thanks!

ej_424 said:
Title says it all. I RUU'd back to stock so I could get the proper N firmware from Sprint now that its released. That went fine but after sending TWRP to phone via ADB i can't get to recovery even though the ADB commands complete fine. It will sit there for a bit after choosing recovery and then reboot and go back to the main OS of the phone.
Any idea whats going on and how to fix this?
Thanks!
Click to expand...
Click to collapse
If I'm guessing, the ruu also flashes the recovery. You need to flash twrp again.

Figured out I needed to use the unofficial releases of TWRP with N support. This thread can be closed. Thanks!