Lg g4 h815 stuck after flashing CM 12.1 - G4 Q&A, Help & Troubleshooting

So my phone is just stuck after i flashed cyanogenmod a couple of times ( it was stuck before so i downloaded another one and installed it as well). It only shows LG logo, says it's bootloader unlocked and blue LED light is flashing. I did advanced wipe once, didn't work. Now i did it with factory reset, then installed cm 12.1. Still doesn't work. What could i have done wrong?
First time posting, might have done something wrong here as well, sorry in advance. :/

Anyone
No one knows what problem this might be?

Related

[Q] LG e975 won't boot, stuck on logo of LG

My new phone had been arived a few days ago, i want to install cyanogenmod 11 (kitkat) on my phone, so i installed the nightly buil.d
After that i found a big problem, the phone doesn't detect my sim card (european card), so i have flashed my phone back to stock. That is where the big problem started, the phone won't fully boot anymore. It stucks on te animated LG logo, it doesn't go further.
I tried to solve this by reboot, reflash with original LG software (not a KDZ file as in the first try), but all doesn't work.
The problem still occur.
Can anyone help me to solve this problem?
Your sincereley,
Robert1996
PM: I am sorry for my bad english, it is not the language that my parrents teached me when i grow up......
in fast boot, wipe everything and hard reset. Should solve the issue.
akahroba said:
in fast boot, wipe everything and hard reset. Should solve the issue.
Click to expand...
Click to collapse
To expand on the above answer in more detail, this type of recovery is covered in the FAQ - http://forum.xda-developers.com/showthread.php?t=2434917
13.Q: I tried custom roms, now I want to go back to stock. How do I do that?
A: Use kdz updater. HERE (http://forum.xda-developers.com/showpost.php?p=44874388&postcount=36) is how to use it. I made simple. Original thread HERE (http://forum.xda-developers.com/showthread.php?t=2010624). IMPORTANT : IF YOU GET STUCK AT LG LOGO AFTER USING KDZ UPDATER,YOU NEED TO PERFORM A HARD RESET. After this,the phone will boot.
Hope this helps
this here is very common that ppl don't wipe and hard reset their phones after flashing stock rom comming from a custom rom, even i forgot that the first couple of times :victory:

[q] d855 rom flash problem

Hello ppl.
I have the G3 D855, and while i was "playing" with the roms before, i reinstalled blisspop rom but my phone stuck on loading screen.. After this i DLed and flashed CM 12.1 but same again.. 3rd rom i flashed was cloudyg3 rom but again phone is stuck on loading screen..
I am wondering is this because battery is low? because even if i have it plugged in it is not loading....
Can you give me an advice please?
Thanks in advance
if twrp is still working, try flashing a stock rom (and kernel?). if it's not, a last resort could be using LG flash tool to clean wipe. you'll also lose all your data
Well.. i charged it for about 4 hours untill it goes ~30% (Dont know why it took so much time), and then i wiped it and reflashed the blisspop rom.
It worked so i guess the fact that i was trying to flash roms and boot them while it was on low battery was the problem.
Thank you again

Newbie mistake bootloop after update, help? ;/

I'm really new to this, hopefully someone can help me. I rooted my phone via method 3 in the Zenfone 2 resources thread. I didn't want to update but the phone downloaded it and I thought it might be ok. The phone updated and got stuck in a bootloop. I believe the update was Z00A 2.19.40.22 ( it was like 34mb?). I read all the threads I could and came to this one. I downloaded the preroot image Z00A 2.19.22 because in my recovery at the top ,it said that was what was on it now. Did I make a mistake there, should I have downloaded an older preroot image? I followed all the directions on recovering from a bootloop ( This thread http://forum.xda-developers.com/zenfone2/general/guide-to-apply-ota-bootloop-rooted-zf2-t3127835. The phone booted up after the install and I was able to go through the setup. The phone suddenly froze though and I restarted. It gets past the Asus logo and then is stuck at a black screen with the green led blinking. What do I do from here? Is the phone just dead now? Is there a possibility of saving it?
More info- Before downloading the preroot I did try to factory reset from recovery. I was still stuck with bootloop. If anyone can help me I would really appreciate it a lot.

Rooted lg g3 d855 softbricked

Hey guys.
I think that I have softbricked my lg g3 d588, because I have installed my cyanogenmod 13 and I have installed gapps, but my phone keeps booting to TWRP everytime I turn it on or reboot system from TWRP. When I installed cm 13 and gapps, it said that instalation was succesful, but when I press Reboot System, phone boots into TWRP. My pho is rooted.
Please, help me, I have been trying to fix my phone for a week now and I haven't find a solution. Thank you for answer.

H815, stuck on logo LG, after Hard reset Green screen...

Hi
I have a problem with my H815. In one moment i recognized that my LG G4 shows only LG boot logo.
I will make a hard reset. I have unlocked bootloader and imperium rom and kernel. After hard reset it
shows twrp recovery for a while and then stuck and then only green screen with text (on top - unknown reset)
And now it shows this green screen after a hardreset or during the second half of the hard reset.
Is there any way to try to repair it by myself?
Thanks Ondrej
gropa said:
Hi
I have a problem with my H815. In one moment i recognized that my LG G4 shows only LG boot logo.
I will make a hard reset. I have unlocked bootloader and imperium rom and kernel. After hard reset it
shows twrp recovery for a while and then stuck and then only green screen with text (on top - unknown reset)
And now it shows this green screen after a hardreset or during the second half of the hard reset.
Is there any way to try to repair it by myself?
Thanks Ondrej
Click to expand...
Click to collapse
Best bet would be to start over fresh reinstall firmware with lgup or flashtool and go from there
i cant instal firmware with lgup or flashtool. They didnt recognized the phone. The G4 didnt connect to the PC. Any other suggestions? O
Did you find the solution for this?
I have similar problem now.
I can get into fastboot mode, sometimes into download mode (but can't flash kdz) and TWRP. The problem in TWRP manifests when I try to flash new ROM (or whatever .zip file). I put it in freezer for couple of hours and successfully installed ROM while the phone was cold but didn't manage to boot into it.
Any suggestions?
Bullet92 said:
Did you find the solution for this?
I have similar problem now.
I can get into fastboot mode, sometimes into download mode (but can't flash kdz) and TWRP. The problem in TWRP manifests when I try to flash new ROM (or whatever .zip file). I put it in freezer for couple of hours and successfully installed ROM while the phone was cold but didn't manage to boot into it.
Any suggestions?
Click to expand...
Click to collapse
Check my signature for the bootloop fixit list.
Sent from my LG-H815 using XDA Labs

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