LG G3 F400K Hard Reset Problem - G3 Q&A, Help & Troubleshooting

So I was trying to mod my Camera. I followed a certain video which I thought was doing the steps right until I was able to read one of the comments. Unfortunately, after I rebooted my phone, it won't go further but the startup logo. I am a beginner in these kinds of things. How to do a hard-reset in LG G3 F400K? I have searched a lot of tutorials which are all similar but won't work with my phone.
Please halp :<

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Please Help!

Hi guys. first post here because I have messed up and bricked my G3.
I tried to install Cyanogenmod following a video on Youtube. God knows why because I have not attempted anything like this before so should of known it would go wrong. But I heard it would eliminate the lag I had been experiencing.
After following the guide. I believe I am stuck in a boot loop. I just get the LG Life's Good screen upon power up and it goes no further.
Upon realizing my failure I tried to follow a guide to flash it back to stock. Didn't work. I'm still stuck in same situation.
Then I tried to use the rear buttons to do a factory reset.
Also did not work.
Can anybody help me? Give me any ideas as to what to do. I followed the guides to the T so I don't understand.
At the moment I just have a very expensive paper weight.
mikem1989 said:
Hi guys. first post here because I have messed up and bricked my G3.
I tried to install Cyanogenmod following a video on Youtube. God knows why because I have not attempted anything like this before so should of known it would go wrong. But I heard it would eliminate the lag I had been experiencing.
After following the guide. I believe I am stuck in a boot loop. I just get the LG Life's Good screen upon power up and it goes no further.
Upon realizing my failure I tried to follow a guide to flash it back to stock. Didn't work. I'm still stuck in same situation.
Then I tried to use the rear buttons to do a factory reset.
Also did not work.
Can anybody help me? Give me any ideas as to what to do. I followed the guides to the T so I don't understand.
At the moment I just have a very expensive paper weight.
Click to expand...
Click to collapse
What model of phone, were you on kk or lp? Did you start by rooting and installing TWRP?
drolgnir said:
What model of phone, were you on kk or lp? Did you start by rooting and installing TWRP?
Click to expand...
Click to collapse
Thanks for the reply.
I have a European D855 32GB. I am sorry I do not know what kk or lp is. That probably shows I should never have attempted this in the first place lol. I started by Rooting.
kk or lp is KitKat or Lollipop isn't it lol. I'm on Lollipop.
Hi, i have bricked my lg g3 f400l and now am stuck at lg logo. I rooted the phone and installed recoveryinstaller-v1. 0_AnZhi. apk, then i created a backup of my kit kat rom then i flashed marshmallow nightly custom rom but it failed. I have tried to flash stock rom by kdz and tot method but none of them worked. I am confused, please help me

LG G3 F400L is going dead after failed rooting

as i say it to title... i tried to root via LG G3 one click method and i failed (i dont know why, I followed each step)... after this failure my mobile stuck on "U+ LTE 8" (after the LG logo). By my ignorance i tried to unbrick it via: "How to Unroot/Unbrick LG G3!"
but again it stuck at 94% of the process and after 15 seconds my mobile it turns off once and good... it didnt charges and generally is dead...Totally dead. Is there something that can i do?
Sorry if there is already posted a similar question but i couldnt find a solution.
Any one that can help?

softbricked lg g3 d850

Hey!
I guess i just softbricked my phone, by installing a D855 firmware thing, using LGUP, and don't know how to fix this. To be correct, it turns on to the LG logo, and stays there forever. I can use hard reset, and it does the job, but still bootloop thing. I can also get into download mode, but nowhere further than the LG logo screen if i just turn it on or something. Tried to use LG Flash Tool on multiple computers one after another. I followed guides for help with it, and did everything as they described, but the problem with this, is after i use LG Flash Tool with the correct .TOT file, and .DLL file, it will just say "Model Information Chech FAIL.", so i can't fix it by flashing the correct files. I've been trying everything for 2 days, but no luck. Please, can you guys help me? :'( I'm worried.
Update: My phone is now fixed. I don't know how it got fixed. My brother did it, and he doesn't tell me how he did it. :'D Anyways. It's now fixed, so thank you for everyone who messaged me about this with helps. ^^ After 2 days of trying, its finally fixed.

LG G4 Boot Loop!!!!

My LG G4 just of a sudden screen froze so i restarted it and ever since it is stuck in a boot loop showing only the logo. So i as i read some solutions one of them was to do an hard factory reset but with no sucess.
As a second solution was to flash a new firmware but i don't know which exactly because i cant see my actual version in the android settings.
Can anyone help me save my phone please?
My LG model is H818P
(I also found this site but it says there are a lot of firmwares for my model H818P. Please someone redirect me to a correct one. If any other info is needed for the phone please say so. Thanks)
http://lg-phone-firmware.com/index.php?id_mod=195

Phone stuck on startup/logo screen

Hello everybody! I have a problem with my phone(LG G3 beat D722p), well, my phone is stuck on startup/logo screen. When turn on my phone appears LG logo and then appear the logo of my company and here is where my phone is stuck.
I tried install his KDZ (I used LG support tool) with "Normal flash" to not lose my data but this doesnt work. In the past I have done the same and it works but not this time. I could do a hard reset but if I do that I will lost all my data (and is very important). I need help please! I need recover all that information.
Mmm download mode maybe?
PD: Sorry for my english, but this is not my native language
Well, this is the G4 subforum for The LG G4 but I'm help u out real quick
1. Use LgUP (Recommended) and simply upgrade with Ur kdz. I got mine from storage cow. Hopefully ive helped.

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