Develop Bugs

[Q] Keeps booting into ROM

Can someone help please?
I was using the Venom ROM but decided I could not live with the battery life, so flashed the Revolution ROM. I must have installed something it does not like, so it is now saying Android.process.acore has stopped, and requires force close. I can sometimes get into Clockwork recovery but on selecting to flash a zip by pressing the power button the DHD boots up the ROM.
Is there a way to bypass having to use the power button?
Thanks
Alex

Whether the cwm recovery is touch based? If not try flashing cwm touch recovery or 4ext recovery or twrp recovery. With these recoveries you can select menu by touch no need of power button to select menu.
Thanks doesn't hurt....

ukmaps4us said:
Can someone help please?
I was using the Venom ROM but decided I could not live with the battery life, so flashed the Revolution ROM. I must have installed something it does not like, so it is now saying Android.process.acore has stopped, and requires force close. I can sometimes get into Clockwork recovery but on selecting to flash a zip by pressing the power button the DHD boots up the ROM.
Is there a way to bypass having to use the power button?
Thanks
Alex
Click to expand...
Click to collapse
Did You do a Clean install? If You didn't do a full wipe do that And then reflash The ROM, if You did, just boot into recovery And choose fixmpermissions from there To see what happens.
Yes use a touch recovery as suggested above

I don't seem to be able to do anything in recovery because of the power button starting the ROM.
Trying to get into the bootloader using adb on the PC doesn't seem to work either, as I'm not getting into fastboot, being unable to select it. I get device not found error in all the screens I can get to on the DHD.
Edit.
I've now, I think, got into fastboot by taking out the SD card and Sim card. I think the DHD knows it's in fastboot USB as this changes to fastboot as I put the USB cable in. However, I get no response to fastboot devices, and still device not found to USB reboot bootloader.
I'll keep trying, but not sure what else I can do.

Nightmare, but eventually managed to get into recovery and flash a new ROM by putting SD card in at the last minute.
After several attempts when the on/off button loaded the old ROM, got the recovery to work correctly, and the new ROM is flashed. adb now works as well.

Help Please!! Recovery Bootloop

I flashed the kernel that is in general section. I have had it before with no issues. I recently flashed Philz Touch CWM. Along with BAM ROM. After flashing the kernel, the little "secure booting error" message came up, but it said "certification verify" or something like that. I then booted back into recovery using the hardware keys, wiped everything, and reflashed. Now whenever I turn it on, it boots directly back into Philz Touch. Somebody please help

fundamentalist but not fun
Nigglenuts said:
I flashed the kernel that is in general section. I have had it before with no issues. I recently flashed Philz Touch CWM. Along with BAM ROM. After flashing the kernel, the little "secure booting error" message came up, but it said "certification verify" or something like that. I then booted back into recovery using the hardware keys, wiped everything, and reflashed. Now whenever I turn it on, it boots directly back into Philz Touch. Somebody please help
Click to expand...
Click to collapse
I'm not sure whether you'll call it a solution, it's more like an act of distress adopted by myself after being hit by that recovery bootloop plague:
1. remove the battery , let rest the phone some time (cannot do any harm)
2. without battery but with usb cable plug it to your pc
3. press&hold simultanously up&down volume key to let it boot into "download mode"
4. insert the battery
5. apply the appropriate flash procedure to go back to stock
6. reboot the phone and never ever unlock the bootloader again

xifizurk said:
I'm not sure whether you'll call it a solution, it's more like an act of distress adopted by myself after being hit by that recovery bootloop plague:
1. remove the battery , let rest the phone some time (cannot do any harm)
2. without battery but with usb cable plug it to your pc
3. press&hold simultanously up&down volume key to let it boot into "download mode"
4. insert the battery
5. apply the appropriate flash procedure to go back to stock
6. reboot the phone and never ever unlock the bootloader again
Click to expand...
Click to collapse
How do I apply the proper flash procedure? i don't even know what that means

Nigglenuts said:
How do I apply the proper flash procedure? i don't even know what that means
Click to expand...
Click to collapse
it´s the things you need to do to load back the original firmware into your phone
in most cases it will be the process described here:
http://forum.xda-developers.com/showthread.php?t=2420219
but with a damaged bootloader, there might be problems to get it through.
You might want to use beforehand cwm-recovery to restore a custom-rom or better nandroid-cwm-backup that is already close to the original software, (even if it doesn't boot up).
If you have an At&T phone, this guide seems a good one:
http://forum.xda-developers.com/showthread.php?t=2302660

[Q] LG G E988 can't boot in download mode

Hi all.
I need help from a hivemind. I've got a LG G E988 with E98820B firmware. I've rooted it via ioroot (successfully) and tried to install custom recovery via freegee, and now my phone is not booting into download mode. If I try to reboot it from my PC using adb, I get "boot certification verify" error. Otherwise phone is booting fine into it's stock HK firmware.
So, long story short, I need download mode to flash stock european firmware but I have this strange error. Closest thing to solution of my problem is this thread , but I want something less radical. In case if something less radical exists.
Any ideas?

fautro said:
Hi all.
I need help from a hivemind. I've got a LG G E988 with E98820B firmware. I've rooted it via ioroot (successfully) and tried to install custom recovery via freegee, and now my phone is not booting into download mode. If I try to reboot it from my PC using adb, I get "boot certification verify" error. Otherwise phone is booting fine into it's stock HK firmware.
So, long story short, I need download mode to flash stock european firmware but I have this strange error. Closest thing to solution of my problem is this thread , but I want something less radical. In case if something less radical exists.
Any ideas?
Click to expand...
Click to collapse
Did you power off device via home power button? When you power down, then try to power back on just hit the power button then hold the plus and minus volume rocker while letting go of power button.

Yes. It casually boots up into rom. I think I somehow messed up my recovery. So is there any way to restore recovery, or flash custom recovery, without booting up in download mode?

fautro said:
Yes. It casually boots up into rom. I think I somehow messed up my recovery. So is there any way to restore recovery, or flash custom recovery, without booting up in download mode?
Click to expand...
Click to collapse
Enable USB Debugging
Connect mobile with PC and select LG Software (Wait for 1-2 minutes and let the drivers install)
Once drivers are installed, Run LG flash tool and start flashing KDZ. It will automatically boot it into download mode and flashing process will start. (If flashing stops / stuck at 4% and your phone is in download mode, remove USB cable, close LG flashtool.... connect USB cable again and restart KDZ flashing)

Tried. Now I can't boot into download mode AND can't boot into rom. And none of my computers see my phone in this state. Any possible explanations for such situation? And what to do about it..

Oh boy I need help

My wife's old S3 was given to me to use. I had originally flashed CM 11 on it and tried to upgrade to CM 12.1. In doing so I accidentally forgot to flash GAPPS.
I reverted to the stock ROM via Odin but now I'm stuck in a boot loop. The best part? The device's power button does not work and I cannot make any selections within the stock recovery to clear the cache and reset to factory settings.
Can anyone help me?

Pull the battery to turn off the phone and put it back in. If you feel the phone power up by vibrating upon putting the battery in and not touching the power button and go into loop then you have a bad power button. Do you have this problem? If so, then your only options are repair or remove the power button (there is an alternate way to power the phone up). Let us know if it is a bad power button or not so that hardware issues can be accounted for and go from there.
NOTE: The S3 has been known for some time now to have power buttons that fail. Mine did, and I opt to remove mine as I could not justify paying for a repair when the S3 is my backup phone and test platform and I have a method to power up. I use widgets for controlling power off, restarts, and recovery once powered up.

I no longer have a power button either and recently encountered this same issue after using Odin to flash a stock image.
My solution was to flash TWRP recovery using Odin, which allows one to perform operations using touch instead of the power button.

Gargat said:
I no longer have a power button either and recently encountered this same issue after using Odin to flash a stock image.
My solution was to flash TWRP recovery using Odin, which allows one to perform operations using touch instead of the power button.
Click to expand...
Click to collapse
That works. Glad you found a way to get through it.

n_alvarez2007 said:
My wife's old S3 was given to me to use. I had originally flashed CM 11 on it and tried to upgrade to CM 12.1. In doing so I accidentally forgot to flash GAPPS.
I reverted to the stock ROM via Odin but now I'm stuck in a boot loop. The best part? The device's power button does not work and I cannot make any selections within the stock recovery to clear the cache and reset to factory settings.
Can anyone help me?
Click to expand...
Click to collapse
Bootloops have not been uncommon when reverting from LP to KK. Once you have flashed TWRP as others in the thread have suggested, you will probably need to wipe/ format the internal sdcard. The other remedy some have posted is to load a stock recovery and do a factory reset from within that stock recovery.

Not sure how to get into recovery without a power button.
Is the button loose or not functioning at all? You could try opening the phone and removing everything from the frame and see if the power button functions.

I haven't tried this with my SGS3, but on my Acer tablet I have booted into recovery using adb and fastboot. This requires connection to a computer, but not a power button. Unless you have a touch version of a custom recovery installed you still would not be able to select an item.
You may be able to flash a custom recovery using adb. I had broken my stock recovery on that tablet and used fastboot to reflash a working stock recovery.

H815 stuck in bootloop, no download mode or recovery

Hello,
I unlocked the bootloader on my LG G4, flashed TWRP and then using TWRP flashed a SuperSU plus a new bootloader for Android M along with the Android M system etc...
The phone is now stuck in a bootloop.
I can no longer get in to TWRP and can get into download mode very briefly before the phone reboots again. My PC can not detect the phone at all.
Can anyone help? Have a feeling I've hard bricked the phone
Thanks, Ben

i have the same issue

benlanghorne said:
Hello,
I unlocked the bootloader on my LG G4, flashed TWRP and then using TWRP flashed a SuperSU plus a new bootloader for Android M along with the Android M system etc...
The phone is now stuck in a bootloop.
I can no longer get in to TWRP and can get into download mode very briefly before the phone reboots again. My PC can not detect the phone at all.
Can anyone help? Have a feeling I've hard bricked the phone
Thanks, Ben
Click to expand...
Click to collapse
wait flastool update for put android 6.0 kdz . antiroll back system on motherboard

Hello Everyone. Someone has got news? Cause my lg g4 stuck on the same issue.
I unlock bootloader and try to install twrp. Via fastboot flash command twrp doesn't seem to get installed. So i try to boot in twrp and then install the img to the recovery partition. All seemed to go fine. When i try to reboot to recovery twrp ask me to root the device. Why not? I leave twrp installs superSu (I think this was my mistake). Now I've a continuous bootloop, even if I simply plug it to the charger. Vol down + Power buttons neither vol up + power doesn't work.
Sorry for bad english

I think one way is to disconnect the battery by disassembling the phone(check Google), then reconnect it and boot to recovery using the correct key combinations. I hope it works.It worked for me.

Install the LGUP tool:
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Install both file.
Download the kdz files:
http://forum.xda-developers.com/showpost.php?p=64298942&postcount=6
This V20A MM, for 5.1 or v20b you have to search.
Power down your phone.
Push and hold Volume Up and then plug the phone via USB to your PC.
The Phone enter the download mode.
Start LGUP, select the KDZ file.
If you choose "upgrade" all data will be obtain, if you choose "refurbish" all data will be lost.
I suggest "refurbish" because for me "upgrade" dont work without fc and system carshes.
Wait around 5 minutes and your G4 is back with MM, clean and fresh.

Thanks hannsheinz for the reply.
I solved this night in this way (very similar to your suggestion):
- I downloaded and installed LG Bridge from the official website.
- I pull out the battery to power off the device.
- I reinsert the battery in the device, without power it on.
- I plug in the usb while pressing volume up button.
- The device entered the download mode and LG Bridge recognized it.
- I press "update error recovery" in Lg Bridge (bottom right in the Software update tab).
- The procedure will take a while according to your pc and internet connection.
- At the end my G4 "breathed again and still breathing"
Very similar to what hannsheinz suggested.
Thanks to all