Develop Bugs

[Q] Stuck on logo

Hey guys..
My new lg g4 seems to be stuck on the boot logo where it says life's good..
This is what I did installed: twrp, superusr, then restarted the phone, after that I started making my setup on the phone , installing launcher and so on, rebooted the phone and now stuck on logo, I have tried to take out the battery, hard reset.. Now I've restarted the phone again, and still stuck on logo.. Any tips please? It's not more then a few hours old

transfer8 said:
Hey guys..
My new lg g4 seems to be stuck on the boot logo where it says life's good..
This is what I did installed: twrp, superusr, then restarted the phone, after that I started making my setup on the phone , installing launcher and so on, rebooted the phone and now stuck on logo, I have tried to take out the battery, hard reset.. Now I've restarted the phone again, and still stuck on logo.. Any tips please? It's not more then a few hours old
Click to expand...
Click to collapse
If your phone is stock try to hard reset with buttons combination.
If you have root and twrp then look on android development for stock rooted rom to flash again from recovery.
For else you must found stock kdz rom to flash it on download mode.
Στάλθηκε από το LG-H815 μου χρησιμοποιώντας Tapatalk

been trying everythingm nothing works
any idea where i can find stock kdz rom? cant seem to find anything on this..

transfer8 said:
been trying everythingm nothing works
any idea where i can find stock kdz rom? cant seem to find anything on this..
Click to expand...
Click to collapse
You have custom recovery on your G4 or stock?
Στάλθηκε από το LG-H815 μου χρησιμοποιώντας Tapatalk

alright, this is what i did:
I unlocked bootloader
Following the LG unlock bootloader site guide (http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryTypeCode=ANRS)
then i installed TWRP: following this guide: http://forum.xda-developers.com/g4/orig-development/recovery-twrp-2-8-6-0-touch-recovery-t3125859
then installed SuperSU..
after this i logged into the phone again, everything was working, started installing normal apps from the appstore, everything was working and then needed to reboot the phone and it got stuck on the logo, havent been able to
get it back on..
this is what i have done after this: tryed to get into recovery by pressing buttons, but i cant get into the recovery am i hiting the wrong buttons?
then i tryed hard reset with button combinations restart the phone but still nothing happends, still stuck on logo..
when i try to connect the phone to the pc aslong as its stuck on the logo the pc dosnt find the phone, so i cant command it to go to recovery by commaneder.
to answer about the custom rom, i havent installed anything else then TWRP and SuperSU.
factory data reset was the last thing i did yesterday. still gets tuck on the logo.
have any more tips?

[removed by dentralp]

transfer8 said:
alright, this is what i did:
I unlocked bootloader
Following the LG unlock bootloader site guide (http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryTypeCode=ANRS)
then i installed TWRP: following this guide: http://forum.xda-developers.com/g4/orig-development/recovery-twrp-2-8-6-0-touch-recovery-t3125859
then installed SuperSU..
after this i logged into the phone again, everything was working, started installing normal apps from the appstore, everything was working and then needed to reboot the phone and it got stuck on the logo, havent been able to
get it back on..
this is what i have done after this: tryed to get into recovery by pressing buttons, but i cant get into the recovery am i hiting the wrong buttons?
then i tryed hard reset with button combinations restart the phone but still nothing happends, still stuck on logo..
when i try to connect the phone to the pc aslong as its stuck on the logo the pc dosnt find the phone, so i cant command it to go to recovery by commaneder.
to answer about the custom rom, i havent installed anything else then TWRP and SuperSU.
factory data reset was the last thing i did yesterday. still gets tuck on the logo.
have any more tips?
Click to expand...
Click to collapse
I Did this Charge battery fully. 2) Plug charging cable into computer's USB. 3) Pull battery from LG G4 for a few seconds. 4) Plug other end of cable into LG G4 at the same time plug battery in. 5) If the boot loop continues go back to and repeat steps 3 and 4. Or alternate with steps 3 then 6. 6) Hold the power button and volume down button at the same time. Plug in the battery.
After a while this brought up the Optimizing Apps screen and once that completed phone booted successfully. Once booted, promptly enable Airplane mode. When I disable Airplane mode the LG G4 goes back to boot loop. but I took out mem card & Verizon sims card seems to be working now

My lg g4 h818p struck on lg logo and iam not able to recharge the battery ,which is required for connect to lg bridge and upgrade recovery form it please help

I think I hardbricked my Zuk z2?

So guys
I was on twrp and tried to flash a new rom but when it rebooted after the install, my Zuk z2 died.
It does nothing now. If I press the powerbutton for a long time it shortly vibrates for one second and the notification light also lights up for 1 second, but does not boot up. I tried volume combinations, don't work either.
What can I do guys?

Well, this guy managed to fix it
. Not sure if its the best way to fix it but it's still something

Effected said:
So guys
I was on twrp and tried to flash a new rom but when it rebooted after the install, my Zuk z2 died.
It does nothing now. If I press the powerbutton for a long time it shortly vibrates for one second and the notification light also lights up for 1 second, but does not boot up. I tried volume combinations, don't work either.
What can I do guys?
Click to expand...
Click to collapse
https://zukfans.eu/community/threads/how-to-unbrick-zuk-z2-from-diagnostic-port-900e.2856/ follow the steps

https://forum.xda-developers.com/lenovo-zuk-z2/how-to/deep-flash-revive-zuk-z2-hard-brick-t3577146
Use this if you didnt success from other methods.

tlxxxsracer said:
My video. The brick occurs when you usually backup a room with one version of twrp, flash another variant of twrp and then restore the nandroid from before.
Happened to me. Flashed MIUI, and then tried to restore a nandroid (not realising the TWRP changed).
Hope the video helps. Plus then you have a cable premade in case it happens again
Click to expand...
Click to collapse
Hello. Maybe you can give me some advice. I am stuck in engineering/diagnostics mode after I accidentally selected that option when I was in the bootloader trying to flash TWRP.
Basically, I had installed TWRP and Mokee 7.1.1. I wanted to check out the original chinese ROM so I relocked, flashed with QFIL, etc. I had first flashed MM, then I flashed latest chinese Nougat official.
I didn't like it, so I was trying to unlock the bootloader again, and in the process I ended up selecting the diagnostics/engineering mode. The phone was stuck there and I had no way of accessing the bootloader to reflash with QFIL or MiFlash
TO try to fix, I used the deep flash method you describe in the video, only I found it in zukfans. I was able to open the 9008 port, flash with QFIL/MiFlash. Even though both tools describe the flash as successful, on boot, it goes back to engineering mode.
How to I get out of there? Is my phone done?
Thanks!

Nexus 5X DEAD/Bootloop

My Nexus 5x that was running 8.1 just randomly turned off yesterday and won't boot into android. Sometime later i tried to turn it back on and it worked and it turned off by itself 2 mins later. i somehow manged it to get into fastboot mode and I then unlocked the bootloader and flashed the stock firmware . But that did not help at all , in fact the phone was now completely dead and it only goes into fastboot sometimes while the other times it being stuck in a bootloop . while luckily when it went into fastboot, i have tried installing different boot images like boot4core but it still wont do anything its really weird,sometimes it doesn't respond to any key combination while sometimes it would go normally into fastboot. Need help , i Have no clue!! plzzz

Same Problem here! Running 8.1 and tap Uppdate Chrome and Alexa App, that the Phone freez and Reboot. After reboot he try to load the apps but freez. Now it wont boot to system and recovery say no command. When i now will enter Recovery the Phone reboots.
No open bootloader and no root. Stock 8.1 Rom from Google
Edit: Try to start Phone in Secure Mode (When Google Logo Popps up press Volume -) Say the System is Corrupt and do a Factory Reset. After Reset the Phone stuck on Boot too
Edit Edit: OK think thats the CPU Hardware Bug. Phone dont start anymore...

keltemp said:
My Nexus 5x that was running 8.1 just randomly turned off yesterday and won't boot into android. Sometime later i tried to turn it back on and it worked and it turned off by itself 2 mins later. i somehow manged it to get into fastboot mode and I then unlocked the bootloader and flashed the stock firmware . But that did not help at all , in fact the phone was now completely dead and it only goes into fastboot sometimes while the other times it being stuck in a bootloop . while luckily when it went into fastboot, i have tried installing different boot images like boot4core but it still wont do anything its really weird,sometimes it doesn't respond to any key combination while sometimes it would go normally into fastboot. Need help , i Have no clue!! plzzz
Click to expand...
Click to collapse
My daughters phone just started doing the same thing this morning. Haven't gone through any tests yet, but it is constantly restarting. Can't get it to go into recovery through normal means.

It is a sign of bootloop?

Hi,
When i use my 5x for a hour or so, then try to reboot it, it stucks at the google logo. When i restarted with the physical button, its usually starts, but not always. There was a time when i couldn't make it work for at least 30minute, then i waited a hour and it started finally.
Every time when i stucked at google logo, i'm able to get to twrp. Tried with stock rom, locked bootloader, stock recovery too, but its same. When i use it for a long time and its get hot, its stucks at google logo when restarting.
But it never restarted automatically. I can use it for 10hours if i want, just if i restart it, its stucks.
Is it because faulty motherboard or what do you think?
Because it dont stuck forever, and i can access recovery mode.

That's probably some random issue, the BLOD happens like this:
You do your stuff on the N5X,
everything freezes for several seconds,
phone restarts itself and doesn't get past google logo,
can't access recovery, however you can access bootloader, which is very laggy,
starting up again is nearly impossible, you can hold the button for an hour and the phone won't even get to the google logo.

ZLevente said:
Hi,
When i use my 5x for a hour or so, then try to reboot it, it stucks at the google logo. When i restarted with the physical button, its usually starts, but not always. There was a time when i couldn't make it work for at least 30minute, then i waited a hour and it started finally.
Every time when i stucked at google logo, i'm able to get to twrp. Tried with stock rom, locked bootloader, stock recovery too, but its same. When i use it for a long time and its get hot, its stucks at google logo when restarting.
But it never restarted automatically. I can use it for 10hours if i want, just if i restart it, its stucks.
Is it because faulty motherboard or what do you think?
Because it dont stuck forever, and i can access recovery mode.
Click to expand...
Click to collapse
I had the same issue when I flashed the newest bootloader version (bhz31b). Issue resolved when I reverted to bhz31a.

Wakamatsu said:
I had the same issue when I flashed the newest bootloader version (bhz31b). Issue resolved when I reverted to bhz31a.
Click to expand...
Click to collapse
Thanks, i'll try bhz31a thanks
(I'll write in some days if it worked or not)

Wakamatsu said:
I had the same issue when I flashed the newest bootloader version (bhz31b). Issue resolved when I reverted to bhz31a.
Click to expand...
Click to collapse
Which bootloader is bhz31a? I tried the bootloop fixes, none worked. Only have access to bootloader, no recovery.
edit: i see bullhead-opm1.171019.011-factory-3be6fd1 has the bhz31a bootloader. I tried this, with no luck on my end. Even with the 4core modified recovery/boot. I must have one of the unfixable BLOD.

I tried that bootloader too, same
My phone can boot, just sometimes it's stucks at google logo, but i can access recovery every time, even if it's stucked at google logo.
Usually every 2. reboot stucks.

Stuck on boot logo after flashing (the wrong thing...)

Hello!
Today I started to install TWRP and flash RR. After a few problems with Odin, I successfully installed TWRP 3.2.3 on my phone.
I have tried many times to install RR because each tutorial said different ways and I still do not have much knowledge about that.
3 hours ago I tried to install RR for the x time and tried to install from zip folder RR the boot.img file. But I did not select it as boot but as recovery.... After that I rebooted. And since then the phone gets stuck at the boot logo.
I cant't enter the download or recover mode. Can only restart it by holding down all buttons or the power and volume down.
I know that it was not the best idea. My phone is also 3 years old now. And that's why I'm thinking about buying a new one.
My new one would otherwise be the Samsung Galaxy A21s.