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] Stuck at Splash Screen?

So I tried to flash the Venom rom 1.2 version from stock rooted S-On and after flashing I am now stuck at the splash screen and cannot access the bootloader, any suggestions?
EDIT: I have figured out the problem and solved it, mods please close this thread

th3lawmak3r76 said:
So I tried to flash the Venom rom 1.2 version from stock rooted S-On and after flashing I am now stuck at the splash screen and cannot access the bootloader, any suggestions?
EDIT: I have figured out the problem and solved it, mods please close this thread
Click to expand...
Click to collapse
Hi,
I am also having same problem. Could you please tell me how to resolve it?
Thanks.

I have also same problem tooo.

use adb command
fastboot erase cache

Or this: http://forum.xda-developers.com/showthread.php?t=2722242

kumar1986 said:
Hi,
I am also having same problem. Could you please tell me how to resolve it?
Thanks.
Click to expand...
Click to collapse
Well if those didn't solve your problem what I did was let my M8 run out of battery and then plugged it into my computer holding power+volume down and that allowed me to get into the bootloader and then into fastboot. I then erased the cache and entered recovery where I had a backup ready.

I'm experiencing the same problem, and still working on solving it. But for those who are stuck in the boot screen and need to shut off their phone so that they can boot up into recovery (power + vol down), hold down BOTH volume buttons and the power button and the phone will shut off in a few seconds. I couldn't find this anywhere and was getting annoyed waiting for the juice to run out so I tried a few things and this worked.
edit: turns out it's just volume UP and power to 'battery pull' the phone, not both, although that will work because you're pushing on up

HTC ONE M8 Stuck on Splash screen
th3lawmak3r76 said:
Well if those didn't solve your problem what I did was let my M8 run out of battery and then plugged it into my computer holding power+volume down and that allowed me to get into the boot loader and then into fast boot. I then erased the cache and entered recovery where I had a backup ready.
Click to expand...
Click to collapse
You can also try this if you're not willing to wait for the battery to drain. I also ran into that very same problem, being stuck on the htc splash screen.. However this is how I fixed it. Like one of the posters above i too held the volume button up while at the same time holding down the power button. My HTC One M8 would just reboot back to the splash screen. So, i went through all of the steps above again but this time as the screen went off still holding the power button down. I immediately slid my finger from volume up to down. I continued holding it in the volume down position until the boot loader come up. I selected recovery from there and did a cache wipe and restored a NAND backup. I hope this helps someone.

Found a pretty easy fix
It's a somewhat common problem as I can tell,w hen the device stops on the splash screen (where it says "POWERED by Android") ,, and it has a pretty easy fix, which does not require drain the battery or erase the cache from ADB and so on ! What you do is, you hold down Volume UP + Power Button and keep it pressed till the device will re-restart itself and will boot in to the system (unless you completely f-ed up your system).
Good luck

I have found a way
th3lawmak3r76 said:
So I tried to flash the Venom rom 1.2 version from stock rooted S-On and after flashing I am now stuck at the splash screen and cannot access the bootloader, any suggestions?
EDIT: I have figured out the problem and solved it, mods please close this thread
Click to expand...
Click to collapse
Press and hold the Volume Up key and the Power button until you see a black screen. As soon as you see it press the Volume Down key and the Power button at the same time. This should get you to your bootloader.

HTC One M8 Stuck on BootLogo
CyDroid1 said:
....held the volume button up while at the same time holding down the power button.....as the screen went off still holding the power button down...immediately slid my finger from volume up to down.....continued holding it in the volume down position until the boot loader come up.....
Click to expand...
Click to collapse
thanks a lot. that did the trick.

Bricked Nokia N1

Hello, i have bought a nokia n1 with the chinese firmware and i have followed this tutorial for install the taiwan firmware http://forum.xda-developers.com/noki...t3083115/page4 #39 .
When i have reboot my tablet after entered this command " dd if=/sdcard/system.img of=/dev/block/pci/pci0000:00/0000:00:01.0/by-name/system (/pci/pci0000:00/0000:00:01.0 ", my tablet does'nt boot and stuck at powered by android. I can have adb and fastboot command but i don't know how i can restore my tablet. Anyone can help me ?
Sorry for my bad english and thanks you

If you have ADB access, you can run:
adb reboot recovery
After that you could reinstall using ADB sideload and this file : http://ota-service.oss.fc811.com/upl...&sn=L123456789
My N1 won't give me adb access, so I'm in a worse state than you

Hello i have resolve the problem by sideload the full rom (A5CN507) but i have don't use adb for boot into the bootloader i have press the volume down + power button and then go to recovery.
Did you try to boot into the bootloader with volume down + power button ?
Thanks for your help

Xiware said:
Hello i have resolve the problem by sideload the full rom (A5CN507) but i have don't use adb for boot into the bootloader i have press the volume down + power button and then go to recovery.
Did you try to boot into the bootloader with volume down + power button ?
Thanks for your help
Click to expand...
Click to collapse
Thanks for mentioning. I have tried with volume down + power hundreds of times and my device refuses to go into bootloader. =/
I'm sure I could unbrick the same way you were able to, if i could just get into bootloader one time!

Goronok said:
Thanks for mentioning. I have tried with volume down + power hundreds of times and my device refuses to go into bootloader. =/
I'm sure I could unbrick the same way you were able to, if i could just get into bootloader one time!
Click to expand...
Click to collapse
=/

Goronok said:
Thanks for mentioning. I have tried with volume down + power hundreds of times and my device refuses to go into bootloader. =/
I'm sure I could unbrick the same way you were able to, if i could just get into bootloader one time!
Click to expand...
Click to collapse
I had some trouble booting straight to the bootloader as well.
I don't know if this helps but anyway: After you power off the device, press and hold the power and vol- buttons. When you see the "Powered by Android" logo, let go of the power button but keep holding the vol- button. The tablet should boot into bootloader mode. I initially made the mistake of holding both buttons the whole time.

Msonata said:
I had some trouble booting straight to the bootloader as well.
I don't know if this helps but anyway: After you power off the device, press and hold the power and vol- buttons. When you see the "Powered by Android" logo, let go of the power button but keep holding the vol- button. The tablet should boot into bootloader mode. I initially made the mistake of holding both buttons the whole time.
Click to expand...
Click to collapse
Thanks for the tip, i will try that. When I last tried, if I held any button at all, the tablet would never show the "powered by android" screen. It would only show it right after i released all buttons.

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

My phone won't automatically boot

Hello
I power off my phone every night.
Since a few days, sometimes I can't reboot it with the simple power button, I have to use the fastboot combo (power - vol dwn) and press start to reboot.
Then the phone just act as usual...
What can be the point?
Thanks in advance.
(Sometimes all is good.)

dd66 said:
Hello
I power off my phone every night. Since a few days, I can't reboot it with the simple power button, I have to use the fastboot combo (power - vol dwn) and press start to reboot. Then the phone just act as usual... What can be the point? Thanks in advance.
Click to expand...
Click to collapse
Is your bootloader unlocked, rooted? If so, fastboot flash a full factory image removing the -w switch from flash-all.bat. If that doesn't fix it (or your bootloader is locked), the next step would be to reset the phone to factory from Recovery (FDR).

I suspect a wonky bootloader too.
Are you using TWRP? Maybe it did not install correct to both slots.

Phone is one week old and full stock (I opened the box myself)

dd66 said:
Phone is one week old and full stock (I opened the box myself)
Click to expand...
Click to collapse
I too have noticed this. If I turn off the phone through the power button and then press it to restart, nothing happens. I also have to do the combo to restart and it takes a few seconds. It's frustrating. I'm on December stock rooted with Elemental Kernel.
Sent from my [device_name] using XDA-Developers Legacy app

dd66 said:
Hello
I power off my phone every night.
Since a few days, sometimes I can't reboot it with the simple power button, I have to use the fastboot combo (power - vol dwn) and press start to reboot.
Then the phone just act as usual...
What can be the point?
Thanks in advance.
(Sometimes all is good.)
Click to expand...
Click to collapse
I have noticed a couple of times (after doing a full power down) that I will have to hold the power button in for about 8 seconds to get it to boot. That is definitely longer than the normal couple of seconds that it takes after a hard power down. I honest do not know how frequently it actually happens since ~99% of the time I use reboot instead of power down/power up. I only fully power it down if I am going to remove it from the case to clean it. I too am on December stock, rooted (Magisk 18 installed using TWRP .img only) and Elemental kernel via the Elemental app auto-installer.
Just wondering if you have held the power for a while as opposed to vol down/power combo.

I have experienced this many times. When I perform a "restart", it just goes to a black screen. Disappointed in this phone.

dd66 said:
Phone is one week old and full stock (I opened the box myself)
Click to expand...
Click to collapse
Because you are stock and locked your choices are limited. I would do a factory data reset from recovery mode. If that did not fix the problem immediately I would be on the phone with Google getting a replacement. That or unlock the bootloader now which would also reset the device. The idea is to rule out a hardware defect while your phone is still new.