Develop Bugs

Getting into TWRP Recovery

Hello everybody,
I hope somebody can help me, I just flashed TWRP and CMB on my 8.3
But i forgot to wipe data before. Now the boot animation still stays.
Can somebody tell me how to get into TWRP, I tried everything. Power + Vol + - ....
Is it a good idea to recover it with the LG tool?
Thanks,
Beagle

First of all you need the 2.6.3.1 version of twrp as the previous one cant enter recovery with a key combo. Then try this:
- With Device Powered Off And Unplugged
- Press and hold Power Button + Volume Down
- When the LG logo shows up, release the power button only
- Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
- When the factory reset screen appears, release your hold on all buttons
- Follow On Screen Indications
Click to expand...
Click to collapse
although it will say to perform a factory reset it will enter recovery mode
take a look here,its posted by the developer himself http://forum.xda-developers.com/showpost.php?p=48338272&postcount=16

yes i have 2.6.3.1 because otherwise i wouldnt be able to install cmb.
And i tried all this combos, but nothing worked.

Beagle1987 said:
yes i have 2.6.3.1 because otherwise i wouldnt be able to install cmb.
And i tried all this combos, but nothing worked.
Click to expand...
Click to collapse
I just tried it myself, and he's got it basically right.
When you first see the LG logo after holding Vol Down + Power, let go of both buttons, then immediately hit and hold Vol Down + Vol Up + Power. It should register.

Beagle1987 said:
yes i have 2.6.3.1 because otherwise i wouldnt be able to install cmb.
And i tried all this combos, but nothing worked.
Click to expand...
Click to collapse
It does work it is tricky tho
took me a few tries the first time

113832955
Ok Thanks guys I got it after 100 tries
Now I factory reseted it and everything is working!
Thank you all for your great work!

Beagle1987 said:
Ok Thanks guys I got it after 100 tries
Now I factory reseted it and everything is working!
Thank you all for your great work!
Click to expand...
Click to collapse
They didn't make it easy haha the G2 is a little ticky too and completely different keypress just to make it even more confusing lol thanks LG

[Q] Acidentally Wiped System, What can I do?

I accidentally formatted the system partition so the tablet will not boot. I can't get back in to TWRP, I didn't have anything to flash in there anyway because CM would fail. What can I do?
Thank you.

You could try the LG mobile support tool

techrider6262 said:
You could try the LG mobile support tool
Click to expand...
Click to collapse
I think you have to pay to use it.

No its free just go the the website and download it.You can downloaded it from the link in this post.
http://forum.xda-developers.com/showthread.php?t=2543350

Can you write to it in ADB? How far does it come when it tries to boot? just LG bootloop? And what edition of TWRP did you use to flash?

CuraeL said:
Can you write to it in ADB? How far does it come when it tries to boot? just LG bootloop? And what edition of TWRP did you use to flash?
Click to expand...
Click to collapse
I realize why it didn't flash. Because I was using an older version of TWRP that wouldn't flash AOSP roms. Is there any way to boot to recovery from the device being off?
The method in the link doesn't seem to work anymore.

How far do you get in the boot? LG screen? When connect to PC do you get connect/disconnect sounds? Please answer the questions as I'm thinking about this. I can't find any key combos so we need to find out if we have a small window where we can talk to ADB.. Any connection sounds? How far do you get?
Are you familiar with ADB and Fastboot?

CuraeL said:
How far do you get in the boot? LG screen? When connect to PC do you get connect/disconnect sounds? Please answer the questions as I'm thinking about this. I can't find any key combos so we need to find out if we have a small window where we can talk to ADB.. Any connection sounds? How far do you get?
Are you familiar with ADB and Fastboot?
Click to expand...
Click to collapse
I don't hear any sounds. It just stays at the LG screen. I made it to the factory reset screen but it didn't do anything. I followed these steps:
Make sure your device is fully charged and turned off.
Simultaneously press and hold the power and volume down buttons.
When the LG logo shows up, release the power button only.
Now press and hold the power and volume up button while keeping your hold on the volume down button.
When the factory reset screen appears, release your hold on all buttons.
Press the power button to continue.
Press the power button again to confirm if you’re sure you wish to continue with the reset.
Click to expand...
Click to collapse
ADB doesn't work at the LG screen, I just get the error: device not found message.
I can just send it back but I'd prefer to get it working.
Thanks

skatingrocker17 said:
I don't hear any sounds. It just stays at the LG screen. I made it to the factory reset screen but it didn't do anything. I followed these steps:
ADB doesn't work at the LG screen, I just get the error: device not found message.
I can just send it back but I'd prefer to get it working.
Thanks
Click to expand...
Click to collapse
Okay, okay, I dunno what you can do maybe ADB Works in here: Turn off the device AND disconnect from PC. When shut Down, you DONT hold power, but hold Volume up + Volume Down, when you hold both, you plug in USB cable. This takes you to download mode. That is perhaps a step in the right direction if you can start ADB from download mode. Then you can boot into recovery. But I don't know. This is maybe the last option for you. No recovery key combo has been discovered yet. If you can do a fastboot boot recovery from download mode, that would be golden. Then you can use the SD Card to get back with the newest TWRP and the CM11 nightly. Please let me know if this Works man. I'm sorry for your loss, otherwise. Factory Reset, as you said, will not work, since there's nothing to "restore" from. You deleted it. :/

Unfortunately, ADB doesn't work in download mode.

skatingrocker17 said:
Unfortunately, ADB doesn't work in download mode.
Click to expand...
Click to collapse
Were you able to download the LG tool?

skatingrocker17 said:
Unfortunately, ADB doesn't work in download mode.
Click to expand...
Click to collapse
Damn that sucks. I was looking around the G2 forums to see about download mode and what LG usually did with it. Apparently they are using something called KDZ files, and they are able to flash stock roms back onto the device with something called FlashTool. Now, if it were my tablet and it was in the state yours is, I would try and read the tutorial. And then I'd follow it step by step but instead of the G2 KDZ, I'd see if I could find a KDZ with a G Pad rom instead. And just.. Yolo that ****.. From download mode.
Here's the thread, if you wanna read it.. http://forum.xda-developers.com/showthread.php?t=2432476. I dunno man. The LG Tool thing, maybe you should try and see what techrider6262 is saying, he might have an idea as well, otherwise, just go all out crazy and see if you can magically use the FlashTool on your G Pad instead of the G2, since they are from "same line up." I know that's not the same as same model and so on.. But still.. Download mode.. Is download mode. Ofc. the tool itself or the settings in the tool might not work.. But.. You know. Why not.. Can't hurt.. Download mode will prolly still be available afterwards.. "For science."

got the same problem. i couldnt i wiped all data on the tablet and couldnt select the rom from the ext.sd. now its stuck at the lg logo.

skatingrocker17 said:
Unfortunately, ADB doesn't work in download mode.
Click to expand...
Click to collapse
blazze11 said:
got the same problem. i couldnt i wiped all data on the tablet and couldnt select the rom from the ext.sd. now its stuck at the lg logo.
Click to expand...
Click to collapse
This guys.. Is for download mode fix. I am pretty sure this works. Since you have access to Dload mode. Good luck.
I use the download mode to install the original official rom.
1. Download the LG MOBILE SUPPORT TOOL by this link:http://www.lg.com/us/support-mobile/lg-V500-White
2. install the software in computer, Plug in USB cable with computer, Open the software LG MOBILE SUPPORT TOOL.
3. Turn off Pad and unplug.
4. press hold both volume up and volume down, Then plug in usb cable, And then pad is in downlaod mode
5. USB driver will be insatlled automatically
6. In LG MOBILE SUPPORT TOOL, click option---.country and language-OK, then click option--upgrade recovery
7. It will installe original official rom automatically.
8. After about 1.5 hours, The pad will be installed the last official room.
^ This is a quote and now I shut down the thread, sorry, don't know who said it, just got stoked when I saw it.

thanks, the tool is downloading the rom. hope its works.
// it worked thanks a lot, will try to flash cm 11 tomorrow again.

blazze11 said:
thanks, the tool is downloading the rom. hope its works.
// it worked thanks a lot, will try to flash cm 11 tomorrow again.
Click to expand...
Click to collapse
That is GREAT!
Now remember mate, clear DATA in TWPR, not system.. Never system. Clear only data/factory reset, then just flash CM 11. Nothing else is needed. Remember to install superSU from market after you get booted, otherwise root will not work. Update Binary in SuperSU.

Okay thanks for your help. Its so stupid that there is no key combination for recovery.
I will use your advice and try it later.

blazze11 said:
Okay thanks for your help. Its so stupid that there is no key combination for recovery.
I will use your advice and try it later.
Click to expand...
Click to collapse
Agreed.

blazze11 said:
Okay thanks for your help. Its so stupid that there is no key combination for recovery.
I will use your advice and try it later.
Click to expand...
Click to collapse
There is...
With device powered off do this...
Hold volume key down and press and hold power button.
When LG Logo appears let go of just the power key while still holding the volume key down and then press power key again and volume up while still holding down the volume key.
You get to the factory reset screen and just keep pressing power until you get into recovery.

AndroidUser00110001 said:
There is...
With device powered off do this...
Hold volume key down and press and hold power button.
When LG Logo appears let go of just the power key while still holding the volume key down and then press power key again and volume up while still holding down the volume key.
You get to the factory reset screen and just keep pressing power until you get into recovery.
Click to expand...
Click to collapse
Okay, i will try it next time. Everything is working right now.
Thanks

[Resolved] LG G4 (H815) Bootloop after installing SuperSu

Hello!
I have a big problem with my new LG G4 and i hope xda can help my. I have update to Android 6.0, unlocked the bootloader, and installed TWRP. This has everything works. Then i installed SuperSU with TWRP and now the phone will not boot. When I start the phone, then I only see the LG logo and is in the top left: "Bootloader state: bootloader unlocked (please look this screenshot: postimg.org/image/qzumppnb9). I can not in the recovery with the Power-Button and Volume +. And i can not connect with ADB/Fastboot. If i run a command in the console, than is wrtitten: "waiting for device"... And the Software "WinDroid" says: "Offline". After checking device: "No device found".
How can i connect to fastboot again and install a new rom or similar?
Please help me, what can i do? :crying:

Strange that i do not get help in this large forum. Regardless, it have found a solution.
For all people with the same problem:
You can access the recovery with the following key combination:
Power off your Phone
Press Volume DOWN + Power and hold this until you can see the LG-Logo
Then release only the power button for 1 second and press again until you can see the reset menu from the phone
Now confirm everything with YES and you can see the recovery
Then i installed this version of SuperSU (download.chainfire.eu/896/SuperSU/BETA-SuperSU-v2.66-20160103015024.zip?retrieve_file=1) from the external SD card and Android is restarted!!

Andolium said:
Strange that i do not get help in this large forum.
Click to expand...
Click to collapse
it might be because you're in the Verizon G4 forum, lol oops.
glad you found a solution

I did this but after see the android icon image, then phone booted and same behaviour.... : /

Thank You!!!
Andolium said:
Strange that i do not get help in this large forum. Regardless, it have found a solution.
For all people with the same problem:
You can access the recovery with the following key combination:
Power off your Phone
Press Volume DOWN + Power and hold this until you can see the LG-Logo
Then release only the power button for 1 second and press again until you can see the reset menu from the phone
Now confirm everything with YES and you can see the recovery
Then i installed this version of SuperSU (download.chainfire.eu/896/SuperSU/BETA-SuperSU-v2.66-20160103015024.zip?retrieve_file=1) from the external SD card and Android is restarted!!
Click to expand...
Click to collapse
Thank you so much for your solution. I searched and searched and was not able to find any solution to this problem. My phone was stuck in bootloop and I tried every solution, even reflashed twrp a couple of times but the I stumbled upon your solution so KUDOS

str8spir said:
Thank you so much for your solution. I searched and searched and was not able to find any solution to this problem. My phone was stuck in bootloop and I tried every solution, even reflashed twrp a couple of times but the I stumbled upon your solution so KUDOS
Click to expand...
Click to collapse
In my case did not help. I was only able to restore all android refurbishing with LGUP

LG G4 wont boot in recovery mode

Hi,
I have a bootloop issue (I was using LOS official and it crashed when I answered a call) and when I try booting in recovery mode it just starts normally.
I do the Power + Vol down until I see the LG logo then release both for a short time and hold them again but it starts the LOS bootanimation..
What I am doing wrong ?

Emin3ms said:
Hi,
I have a bootloop issue (I was using LOS official and it crashed when I answered a call) and when I try booting in recovery mode it just starts normally.
I do the Power + Vol down until I see the LG logo then release both for a short time and hold them again but it starts the LOS bootanimation..
What I am doing wrong ?
Click to expand...
Click to collapse
The G4 has a really stupid way of entering the recovery. I couldn't get in for a while too. Try again making sure you are actually pressing the buttons together at the same time. That means having just one click. They have to be clicked down at the exact same time.
Also, the instructions you've seen (first Google result) may not be the best. This is what I do WITH a custom recovery (TWRP).
1. Power off completely
2. Holding power and volume down at the exact same time until the lg logo appears.
3. Continue holding the volume down button but release the power button for a second.
4. Press and hold power and volume down again.
5. When asked if you want to wipe the device, select yes. This won't wipe the device but will take you to TWRP (if you installed it). Otherwise, it wipes the device.

htr5 said:
The G4 has a really stupid way of entering the recovery. I couldn't get in for a while too. Try again making sure you are actually pressing the buttons together at the same time. That means having just one click. They have to be clicked down at the exact same time.
Also, the instructions you've seen (first Google result) may not be the best. This is what I do WITH a custom recovery (TWRP).
1. Power off completely
2. Holding power and volume down at the exact same time until the lg logo appears.
3. Continue holding the volume down button but release the power button for a second.
4. Press and hold power and volume down again.
5. When asked if you want to wipe the device, select yes. This won't wipe the device but will take you to TWRP (if you installed it). Otherwise, it wipes the device.
Click to expand...
Click to collapse
Same Issue here, I was on Genisys opened whatsapp cuause I had a new message and phone rebooted.
after that it just stay on LG logo.
I followed your steps and got to the option of factory reset but after I hit ok with the power button phone just reboots back to the LG logo.
I think mine is the genuine bootloop issue.

htr5 said:
The G4 has a really stupid way of entering the recovery. I couldn't get in for a while too. Try again making sure you are actually pressing the buttons together at the same time. That means having just one click. They have to be clicked down at the exact same time.
Also, the instructions you've seen (first Google result) may not be the best. This is what I do WITH a custom recovery (TWRP).
1. Power off completely
2. Holding power and volume down at the exact same time until the lg logo appears.
3. Continue holding the volume down button but release the power button for a second.
4. Press and hold power and volume down again.
5. When asked if you want to wipe the device, select yes. This won't wipe the device but will take you to TWRP (if you installed it). Otherwise, it wipes the device.
Click to expand...
Click to collapse
Ok after a few tries I managed to do it this way

Hi guys, today I've managed to brick my G4 so it doesnt boot neither to recovery nor fastboot nor download mode. It just loops the LG logo as you can see here https://www.youtube.com/watch?v=9gm0dh6bLp4
Any ideas how to recover?
Thank you

Jirrick said:
Hi guys, today I've managed to brick my G4 so it doesnt boot neither to recovery nor fastboot nor download mode. It just loops the LG logo as you can see here https://www.youtube.com/watch?v=9gm0dh6bLp4
Any ideas how to recover?
Thank you
Click to expand...
Click to collapse
If you don't remember doing anything that might have caused this, then it may be the LG G4 bootloop bug.
I'd put the phone in a zip lock back, in the freezer overnight and then back up all my data as quickly as possible. You're phone may be dead.

htr5 said:
If you don't remember doing anything that might have caused this, then it may be the LG G4 bootloop bug.
I'd put the phone in a zip lock back, in the freezer overnight and then back up all my data as quickly as possible. You're phone may be dead.
Click to expand...
Click to collapse
I'm sure I've bricked it while flashing LOS (regular dirty flash of new weekly like i do nearly every week), this time just went something wrong...
As far as I can tell from some YT videos my reboot pattern is different from regular G4 bootloop

Thx for your replies, I managed to revive my phone after whole day of tinkering. Had to overcome some issues so I've posted the solution: https://forum.xda-developers.com/showpost.php?p=73539738&postcount=1

htr5 said:
The G4 has a really stupid way of entering the recovery. I couldn't get in for a while too. Try again making sure you are actually pressing the buttons together at the same time. That means having just one click. They have to be clicked down at the exact same time.
Also, the instructions you've seen (first Google result) may not be the best. This is what I do WITH a custom recovery (TWRP).
1. Power off completely
2. Holding power and volume down at the exact same time until the lg logo appears.
3. Continue holding the volume down button but release the power button for a second.
4. Press and hold power and volume down again.
5. When asked if you want to wipe the device, select yes. This won't wipe the device but will take you to TWRP (if you installed it). Otherwise, it wipes the device.
Click to expand...
Click to collapse
OH MY GOD. It still doesn't work, I am tired and out of my mind, I tried many many times, Idk what else to do. I will try again and again but I am just becoming more mad instead of fixing the problem. DAMMIT

Eldpool said:
OH MY GOD. It still doesn't work, I am tired and out of my mind, I tried many many times, Idk what else to do. I will try again and again but I am just becoming more mad instead of fixing the problem. DAMMIT
Click to expand...
Click to collapse
Hmm, wait, ok. I did it finally, you just need to press them simultaneously and then when LG logo appears just release the power button for literally 1 second and then press and continue to hold both of buttons. That's it.

Eldpool said:
Hmm, wait, ok. I did it finally, you just need to press them simultaneously and then when LG logo appears just release the power button for literally 1 second and then press and continue to hold both of buttons. That's it.
Click to expand...
Click to collapse
This actually worked!!!!....The 1 Second is crucial in the process, I did it on my first try after reading post

I did the procedure but it went to a page that said clear your phone or not! Just it, and there is no option to clean cache partition or any other

v500 Stuck Bootlooping - Cant Access TWRP

Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.

Bump - $10 USD to whoever can help me solve this first

To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk
---------- Post added at 12:58 PM ---------- Previous post was at 12:55 PM ----------
RUGGNATION said:
Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk

RUGGNATION said:
Hi all,
(---cut---) So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
Have you tried LG Flash Tool 2014?

b0li said:
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Click to expand...
Click to collapse
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.

ze7zez said:
Have you tried LG Flash Tool 2014?
Click to expand...
Click to collapse
I did but ive been unable to get it to work and/or find the right file to load into it.

RUGGNATION said:
I did but ive been unable to get it to work and/or find the right file to load into it.
Click to expand...
Click to collapse
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
or
Enter the serial number XXXXXXXXXXXXX into the link
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=LGXXXXXXXXXXXXX
and you will receive a link to the ROM.

ze7zez said:
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
Click to expand...
Click to collapse
Thanks for the link, so far i havent been able to get my computer to recognize the usb connection when in download mode. I'm using the OEM cable and downloaded the drivers in the LG Flash Tool thread, but no luck.

RUGGNATION said:
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.
Click to expand...
Click to collapse
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
In TWRP, do advanced wipe without internal storage.
Before you flash the ROM, check its checksum carefully to see if it is identical to the one on the server.

ze7zez said:
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
Click to expand...
Click to collapse
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.

RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.

ze7zez said:
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.
Click to expand...
Click to collapse
That did the trick, can't believe it was just because i wasn't pressing the keys exactly right. I was able to get back into TWRP and reflash the ROM so now everything is working. Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
PM me your paypal or venmo

RUGGNATION said:
Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
Click to expand...
Click to collapse
Perhaps the problem is not the usb socket or cable.
Blow out the socket with compressed air and try again.
If that doesn't work, then your OS may be a problem.
In this case, try [LIVE-ISO][FWUL]adb/fastboot without any installation and driver issues.

I tried another computer too, same result - the tablet recognizes the connection so it starts charging, and despite the USB settings in dev options being set for MTP, it doesn't connect.
I'll try your link later, but it seems like its a problem with the tablet compared to computer.

RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
You can always transfer data using microSD or via WiFi tethering.
If via WiFi, I recommend the SwiFTP server - simple and reliable.

I tried to update Lineage and am running into an issue now where as soon as the LG logo pops up, a message that says "Secure booting error! Cause: boot certification verify" pops up almost immediately so I can't use the hardware buttons to get into TWRP. Any ideas around this one? Thanks again all!