Develop Bugs

[Q] Alternate ways to get into recovery after a bad flash?

My Desire is gonna be 4 years old soon, so naturally a few bits & pieces aren't as good as new. My main problem is the volume down button: It's just dead. It doesn't do anything, no matter how hard / where I press. It used to be that it didn't register anything just after the 3rd-4th try, but now it does nothing at all.
I like installing roms, but now I'm afraid, what if I encounter a bad flash? If I get a bootloop, I just can't get into recovery via the volume down + power combo. And that would mean that my phone is dead. Bricked.
Is there any way to change this combination to, for example trackpad + power button, or something like this? Or is there any way to get into recovery when I encounter a bootloop / bad flash that doesn't require pressing the volume down button?

deino said:
My Desire is gonna be 4 years old soon, so naturally a few bits & pieces aren't as good as new. My main problem is the volume down button: It's just dead. It doesn't do anything, no matter how hard / where I press. It used to be that it didn't register anything just after the 3rd-4th try, but now it does nothing at all.
I like installing roms, but now I'm afraid, what if I encounter a bad flash? If I get a bootloop, I just can't get into recovery via the volume down + power combo. And that would mean that my phone is dead. Bricked.
Is there any way to change this combination to, for example trackpad + power button, or something like this? Or is there any way to get into recovery when I encounter a bootloop / bad flash that doesn't require pressing the volume down button?
Click to expand...
Click to collapse
Back+power button gets you in fastboot. Then select Bootloader, and then recovery.

Or you can use back + power to get into fastboot, then use "fastboot boot recovery.img" to boot directly into the recovery.

Or
adb reboot recovery
From your PC via USB cable, you can type that even when currently in bootloop ( no need to pull battery)

Thank you, I'm a little more optimistic about flashing now

[Q] Soft-bricked phone after installing custom kernel

Hi Everyone! I'm pretty new to Android stuff in general, and it looks like I soft-bricked my phone while trying to install a custom kernel.
Currently, my phone is running the latest beta of PA (pa_m8-4.6-BETA1-20140902).
I was trying to install custom kernel franco.kernel. Quick googling told me this is possible and the process was to boot into recovery (I'm using TWRP), make a backup, clear cache and dalvik cache, reboot into bootloader and then use fastboot to flash the new boot.img. Was this process correct, or was I already destined for failure?
After doing that whole process, the phone no longer boots properly. When powering on the phone, I see the initial HTC screen popup, and then the screen goes black. This stays this way forever unless I hold power + vol up, which will just restart the phone and the same thing happens. No other keys or key combinations do anything. Holding power or power + vol down does nothing. Holding power + both volume is the same as holding power + vol up. I have also tried holding the power button while holding the phone under a bright light; this has had no effect.
Unfortunately, I can't take a video of this behavior, however it appears this youtube video shows the same behavior:
CPCVecKSPAA (sorry can't post links because I'm new)
The only differences between my behavior and the youtube video are:
1. I am using AT&T instead of international version
2. At the initial screen, I see the red warning text.
Currently, my plan is to wait for the battery to die and then plug it in and try to boot into recovery with power + vol down. Does anyone know anything else worth trying?
Thanks !

Just refresh the rom... That will restore the PA kernel.

I was able to get my phone into bootloader via the following:
1. Plug phone into PC.
2. Press power + vol up + vol down.
3. As soon as charge LED turns off, release vol up.
Once I was in bootloader, I got my phone working by going into recovery and then restoring my backup.
crazymanjinn said:
Hi Everyone! I'm pretty new to Android stuff in general, and it looks like I soft-bricked my phone while trying to install a custom kernel.
Currently, my phone is running the latest beta of PA (pa_m8-4.6-BETA1-20140902).
I was trying to install custom kernel franco.kernel. Quick googling told me this is possible and the process was to boot into recovery (I'm using TWRP), make a backup, clear cache and dalvik cache, reboot into bootloader and then use fastboot to flash the new boot.img. Was this process correct, or was I already destined for failure?
After doing that whole process, the phone no longer boots properly. When powering on the phone, I see the initial HTC screen popup, and then the screen goes black. This stays this way forever unless I hold power + vol up, which will just restart the phone and the same thing happens. No other keys or key combinations do anything. Holding power or power + vol down does nothing. Holding power + both volume is the same as holding power + vol up. I have also tried holding the power button while holding the phone under a bright light; this has had no effect.
Unfortunately, I can't take a video of this behavior, however it appears this youtube video shows the same behavior:
CPCVecKSPAA (sorry can't post links because I'm new)
The only differences between my behavior and the youtube video are:
1. I am using AT&T instead of international version
2. At the initial screen, I see the red warning text.
Currently, my plan is to wait for the battery to die and then plug it in and try to boot into recovery with power + vol down. Does anyone know anything else worth trying?
Thanks !
Click to expand...
Click to collapse

No ROM, can't access bootloader, stuck in bootloop

Hey guys,
Ok, this is a tough one for you. I'm actually not 100% convinced that my phone isn't hard bricked. But every where I look for, it says, it's only hard bricked if your phone wont turn on at all and that's just not true in my case. So here's the story:
My volume-up button is kind of screwed, I don't know, what happened to it, but one day, it just started being triggered randomly until it just didn't work at all anymore. It wasn't that big of a problem, since I was still able to change the volume by hitting the volume-down button once and changing the volume by the on screen slider. I was running SkyDragon GPE V5.5 for quite a while now.
But now I wanted to upgrade to Android 6.0, so I downloaded the firmware from here. Next I rebooted to bootloader switched to fastboot and used "sudo fastboot oem rebootRUU" and "sudo fastboot flash zip firmware.zip" twice. So far so good, everything went fine and I actually even am able to see the new Google splashscreen.
So now I want to flash this ROM. But, for some reason, the touchscreen doesn't work anymore, even though it's activated in the CWM Philz Touch GUI settings enabled. Alright, so I "wipe to install a new ROM" and navigate to the zip file to install it and it starts the aroma installer, which I can't control since the touchscreen doesn't work. So, I'm kind of frustrated by now, I flash TWRP, because, maybe here, the touchscreen works. I flash it and try to reboot into it. But it doesn't work, it just stays at the Google splashscreen, I can restart by holding down the power button but it will just go back to the Google splashscreen. After a couple of tries I actually get it to turn off, so I hold down power and volume down to get into the bootloader but it just goes back to the splashscreen.
I can't get to the bootloader, I don't have a ROM installed and I can't get into the recovery. Is there anything I can still do or is everything lost?

Which TWRP version ? You need to use 2.8.7.0
You can't get to bootloader because of the timing when pressing power & volume down button.
If you can turn it off, press and hold volume down button then press power button until it vibrates then release the power button.

No hardware buttons work!!

Hi
Could some one tell me why i cant get in recovery or factory mode with hardware buttons, i am on stock 10d with twrp recovery installed and rooted wirh super su through twrp. I installed twrp through adb with normal command and device works just fine through reboot apps from os, boots in recovery,fastboot etc just fine,same through adb commands.
But there's no hardware combo or anyrhing working when trying to enter recovery or factory reset working at all?
Tryied every combo i could find saying how to from internet.
It just boot up in os as usual.
And phone dosen't reset while holding power button for 10s + either
It's a bit scary because bootloop is going to come eventually for sure and then there's no rescuing avalible
Could someone plz tell me whats going on?
Im new to g4 so, some help would be nice.
Thanks in advace

It's a bit tricky, to be honest.
• Power off your phone
• Hold "Volume-Down" and keep your "Power-Button" pressed. So you should keep both pressed, until the 1st LG logo appears
• Now just leave the "Power-Button" for ~1 second whilst kept the "Volume-Down" button still pressed, press now the "Power-Button" again and keep holding it
You're now forced to deal with the standard-ui from LG. Go to "Yes" and again "Yes". TWRP now boots and you should be fine .
Edit: Just my tiny story... I watched several videos and also had a nasty bootloop. I was afraid, I now bricked my phone. But a nice user showed me this way and this was the only way, I got my phone recovered.

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