[Q&A] Keymatch : Factory Reset for F400L - G3 Q&A, Help & Troubleshooting

Hello,
I have F400L and I can't enter in factory reset mod (or custom recovery) with Volume down + power , release power etc etc same as D855 and other.
Thanks for your help !

MANIPULATION :
1.Turn off your LG F400.
2.Press power and volume down keys at the same time.
3.Wait for the LG logo to appear and release the buttons.
4.Then, immediately press volume down and volume up buttons (simultaneously).
5.Release the keys once the hard reset menu is being displayed on your LG G3.

OMG it worked!

KingOfDope said:
OMG it worked!
Click to expand...
Click to collapse
Yeah, I'm happy too ! With this method we can acces to TWRP recovery ! And when we have a bootloop, no need LG Flash TOOL !

Eagledig said:
Yeah, I'm happy too ! With this method we can acces to TWRP recovery ! And when we have a bootloop, no need LG Flash TOOL !
Click to expand...
Click to collapse
lol yea I wish I knew this early, I flashed stock 3x because of bootloops XD
THNXX THO

KingOfDope said:
lol yea I wish I knew this early, I flashed stock 3x because of bootloops XD
THNXX THO
Click to expand...
Click to collapse
And more for me !!! with "can't change to download mode" .... **** !!! or "can't communicate with de phone" a lot of wasted time !

Eagledig said:
And more for me !!! with "can't change to download mode" .... **** !!! or "can't communicate with de phone" a lot of wasted time !
Click to expand...
Click to collapse
ahahhahahahaha yea I also got the same problem, I'm so thankful

I tried it again today, and I can't acces it :crying: I don't understand why, I tried about 6 times, I'll go on and do again. Could you acces it for the second time? Because the first time I could but not I can't

Related

root LG F180L not working

i tried Xda thread for rooting LG optimus G korean but didn't work and didn't get superuser and when i check if phone rooted or not by app market unfortunatly not root please let me know how to root this
android 4.1.2
karnel 3.4.0
software F180L20I
20l still can be rooted.use this.
http://forum.xda-developers.com/showthread.php?t=2112190
however,f180s 20g can't be rooted.damned lg fixed this backboor again.
wangzhiqiang said:
20l still can be rooted.use this.
http://forum.xda-developers.com/showthread.php?t=2112190
however,f180s 20g can't be rooted.damned lg fixed this backboor again.
Click to expand...
Click to collapse
root work great but now the phone won't start after shotsown :crying:
any idea what to do??
so your phone can't start now?
wangzhiqiang said:
so your phone can't start now?
Click to expand...
Click to collapse
when i hit power on it comes the black screen with LG logo only
please if you know anything let me know.
is there any solution if i put the phone on download mode?
you should wipe this phone.perhaps it will work.
wangzhiqiang said:
you should wipe this phone.perhaps it will work.
Click to expand...
Click to collapse
i don't understand , i'm not that expert in phones
please tell me if you jnow more
all right.press volume - and power button till you see some words on screen.when you see them,release those buttons quickly.then press power button to confirm.after do this,your phone should work again.
wangzhiqiang said:
all right.press volume - and power button till you see some words on screen.when you see them,release those buttons quickly.then press power button to confirm.after do this,your phone should work again.
Click to expand...
Click to collapse
still nothing :crying:
so,you maybe need to flash kdz file.
http://csmgdl.lgmobile.com/swdata/WDLSW/LGF180L/ALGTBK/F180L20l_00/F180L20L_00.kdz
wangzhiqiang said:
so,you maybe need to flash kdz file.
http://csmgdl.lgmobile.com/swdata/WDLSW/LGF180L/ALGTBK/F180L20l_00/F180L20L_00.kdz
Click to expand...
Click to collapse
YES now its back :good: Thanks

does my LU6200 brick?

I want to install official stock KDZ186, but it can't enter system , then I flash KDZ135 next , but it won't boot , I have try many solutions on the forums , but it can't boot , can't enter download mode , can't enter official recovery, it won't reflect whatever I do , is it "dead" ?:crying:
Who konws how to save it .
Before the flashing was done, was your phone working well ? if it is youre doing something wrong. Can you post what has been done on your unit.
If you can see LG logo when you press power button, then its not dead.
mastercipo said:
Before the flashing was done, was your phone working well ? if it is youre doing something wrong. Can you post what has been done on your unit.
Click to expand...
Click to collapse
Yes, it was working well before I flash 186 , it couldn't enter system after flashed 186 , then I flash 135, it won't wake after 135. It is bricked now .I search on internet , it should be recovered , but it is complex .
mastercipo said:
Before the flashing was done, was your phone working well ? if it is youre doing something wrong. Can you post what has been done on your unit.
Click to expand...
Click to collapse
sixline said:
If you can see LG logo when you press power button, then its not dead.
Click to expand...
Click to collapse
no , it can't reboot any more , it is bricked really , I have searched many time on internet. The most important I don't know how to recover it .
sixline said:
If you can see LG logo when you press power button, then its not dead.
Click to expand...
Click to collapse
i have same scenario here, my phone didn't bootup at all. is there any help. your help will appreciate..
ohj_17 said:
i have same scenario here, my phone didn't bootup at all. is there any help. your help will appreciate..
Click to expand...
Click to collapse
Can you verify that your battery is not fully discharged?
Try to charge your battery with an external charger.

Please help me :((

hello today i got update for my lg g3 d855 32 gb and i downloaded it and i did install now and then the phone did restart to install the software and
then it keeps giving me that (boot certfication verify..secure booting Error .. cause boot certfication verify) and the phone wont start up and it keeps giving me blue and red flashing lights .. please help me (((((
Akhayev said:
hello today i got update for my lg g3 d855 32 gb and i downloaded it and i did install now and then the phone did restart to install the software and
then it keeps giving me that (boot certfication verify..secure booting Error .. cause boot certfication verify) and the phone wont start up and it keeps giving me blue and red flashing lights .. please help me (((((
Click to expand...
Click to collapse
Was it rooted?
yes
zone23 said:
Was it rooted?
Click to expand...
Click to collapse
yes it was rooted
Well it seems to me you have two options you can try flashing the stock kernel, or you can restore to stock. Do you know how to do either of those?
Edit:
actually the kernel might not be the problem, I would just restore to stock probably. Unless someone else has an idea.
zone23 said:
Was it rooted?
Click to expand...
Click to collapse
zone23 said:
Well it seems to me you have two options you can try flashing the stock kernel, or you can restore to stock. Do you know how to do either of those?
Edit:
actually the kernel might not be the problem, I would just restore to stock probably. Unless someone else has an idea.
Click to expand...
Click to collapse
i know how to restore to stock but i dont know how to flash stock kernel
Akhayev said:
i know how to restore to stock but i dont know how to flash stock kernel
Click to expand...
Click to collapse
Maybe this thread can help you
http://forum.xda-developers.com/showthread.php?t=2785089
Akhayev said:
i know how to restore to stock but i dont know how to flash stock kernel
Click to expand...
Click to collapse
OK well I don't think its because of the kernel because you don't have a custom recovery. If it were me I would probably just restore the device. Unless someone else has an idea.
can you give me link for stock frameware for lg g3 d855 32 gb ??
zone23 said:
OK well I don't think its because of the kernel because you don't have a custom recovery. If it were me I would probably just restore the device. Unless someone else has an idea.
Click to expand...
Click to collapse
i tried to do factory reset by holding power key and vol down key and it gave me the screen for that but when i press yes it goes back to black screen with red and blue lights
Akhayev said:
i tried to do factory reset by holding power key and vol down key and it gave me the screen for that but when i press yes it goes back to black screen with red and blue lights
Click to expand...
Click to collapse
Yes that is not restoring the device that is resetting the device. See the post above and the link to restore to factory.
Akhayev said:
i tried to do factory reset by holding power key and vol down key and it gave me the screen for that but when i press yes it goes back to black screen with red and blue lights
Click to expand...
Click to collapse
I wanted to reply with a link where you can download the latest stock firmware for your device but i am not allowed to share links outside xda, i send you direct message instead
vak20 said:
I wanted to reply with a link where you can download the latest stock firmware for your device but i am not allowed to share links outside xda, i send you direct message instead
Click to expand...
Click to collapse
thanks for everyone helped me and i got the message and i am downloading it now ..thank you very much .. you are really very good guys :*
Sorry for "reviving" this topic but Has anybody found a solution for this problem ?
RGin971 said:
Sorry for "reviving" this topic but Has anybody found a solution for this problem ?
Click to expand...
Click to collapse
This thread should be able to lead you through restoring to stock firmware.
No I have the "Qualcomm HS-USB QDloader 9008" device so I can't access to the Download mode

I deleted my Android OS, stuck on LG's logo

Hello to everyone, i hope there is someone could help me
Like i said in the title i deleted my Android OS (yes, i'm an idiot) and now i'm stuck in the LG's logo with the label of unlocked bootloader. I tried to enter in download mode or in TWRP but nothing works...
Do you any advice for me? Thanks and i'm sorry for my bad english
How did you manage to delete your OS? lol.
NocturnalDroid said:
How did you manage to delete your OS? lol.
Click to expand...
Click to collapse
i wiped all internal data for install a new rom via TWRP but this new rom doesn't exist XD
Okay, so you wiped all data. Then what, you tried to flash new rom via ADB?
just reboot to twrp by holding vol up and power. when you see the lg logo release power and press and hold it again. Then a screen asking to factory reset comes up. say yes and yes, then you are in twrp. Connect phone to computer and enable mtp mode so your computer see the phone. You can then transfer another rom to phone to flash.
MrSteelX said:
just reboot to twrp by holding vol up and power. when you see the lg logo release power and press and hold it again. Then a screen asking to factory reset comes up. say yes and yes, then you are in twrp. Connect phone to computer and enable mtp mode so your computer see the phone. You can then transfer another rom to phone to flash.
Click to expand...
Click to collapse
I think he mentioned TWRP/Download mode not working. He's deleted everything basically, lol.
NocturnalDroid said:
I think he mentioned TWRP/Download mode not working. He's deleted everything basically, lol.
Click to expand...
Click to collapse
if thats true, this is a hard brick and lg can fix it.
FUBAR.
IlBudda said:
i wiped all internal data for install a new rom via TWRP but this new rom doesn't exist XD
Click to expand...
Click to collapse
Wiping even with internal data checked doesn't wipe twrp...you will have to use button combo to boot as another user suggested...hold vol down+power and when screen comes on release only power then quickly repress power...do not release volume...many people are giving instructions from g2/3 which are slightly different than g4...i have accidentally done this myself...trust me twrp won't overwrite itself it's still there
MrSteelX said:
if thats true, this is a hard brick and lg can fix it.
Click to expand...
Click to collapse
How? Because i unlocked the bootloader and now technically i don't have the warranty
jamesd1085 said:
Wiping even with internal data checked doesn't wipe twrp...you will have to use button combo to boot as another user suggested...hold vol down+power and when screen comes on release only power then quickly repress power...do not release volume...many people are giving instructions from g2/3 which are slightly different than g4...i have accidentally done this myself...trust me twrp won't overwrite itself it's still there
Click to expand...
Click to collapse
I tried now but doesn't work...
IlBudda said:
How? Because i unlocked the bootloader and now technically i don't have the warranty
I tried now but doesn't work...
Click to expand...
Click to collapse
With phone off. Hold bottom vom down and plug usb connected from pc to phone. That will force download mode. If so, go here http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
MrSteelX said:
With phone off. Hold bottom vom down and plug usb connected from pc to phone. That will force download mode. If so, go here http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click to expand...
Click to collapse
I love you, it works! Thank you very much
IlBudda said:
How? Because i unlocked the bootloader and now technically i don't have the warranty
I tried now but doesn't work...
Click to expand...
Click to collapse
Then you did more than you stated you did because i have erased all in twrp including internal storage and had only to do the button combo to get twrp going and send rom file from pc...retrace your steps and make sure you give as much info as possible and maybe someone can help...but none of the things you mentioned would have touched custom recovery...nevermind it seems you fixed it...enjoy
haha this i have done 3 days after buyed my G4 xD
i was so happy that a KDZ exist... Flashed and well done xD

Hard brick problem

I've a big problem... my phone won't turn on, won't charge (and no led) but is not totally dead.
The problem has happening after install TWRP with Autorec on V30B firmware, i reboot my phone and nothing... My phone won't reboot, just turn off.
Since, there is no vibration when i press start button, no DL mode when i connect to the PC (and hold volume up) but, sometimes i can see boot logo during 3 second and nothing anymore, just a black screen. When i remove the battery and i plug it, the phone shows me a logo which indicates the battery is removed.
I plug my phone during 10 minutes, but always nothing...
If someone can help me, i would be so gratefull
Used twrp for marshmallow or lollipop and your phone version is what?
Give this a try: http://open-freax.fr/guide-unbrick-your-lg-g3/
If that does not help I guess there is nothing you can do.
did you check that you have TWRP? Try to enter recovery since you can see the logo and you certainly flashed recovery. Main thing is that you flashed wrong boot and can not boot system.
Check this post from autoprime.
http://forum.xda-developers.com/showpost.php?p=64626209&postcount=529
Thank you very much for your help. Your link @two_handed was very helpfull
Silver Wx said:
Thank you very much for your help. Your link @two_handed was very helpfull
Click to expand...
Click to collapse
Have you been successful? It helped me with my Soft/Hardbrick.
two_handed said:
Have you been successful? It helped me with my Soft/Hardbrick.
Click to expand...
Click to collapse
Yes ! Tanks again
Silver Wx said:
Yes ! Tanks again
Click to expand...
Click to collapse
Does that method keep the internal memory files? pictures etc?
My g3 is fully bricked and i just want the files!
Ray1000 said:
Does that method keep the internal memory files? pictures etc?
My g3 is fully bricked and i just want the files!
Click to expand...
Click to collapse
Nope , internal memory will be erased..

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