my g4 keeps getting stuck in the bootloop and i already flashed stock 20a kdz rom with the lgup software with no success. no warranty HELP!
Phone model number and serial ?
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Hello,
My friend's G4 (Hong Kong Version, Model H815T) was bricked because upgrading to Android 6.0. I can't get in to the recovery mode. But download mode can access, so I tried flash ROM in KDZ method but the programs fails on 9%. I had tried LGUP also but still brick. Please Help!!! :crying::crying::crying::crying:
More Info:
KDZ file: storagecow.eu/Xda/LG%20G4/Hong%20Kong%20H815T10B_00.kdz
S/N: 505
[UPDATE 1/11/16 2053PST]
I tried flash the system to MM 20A but it will stuck at the boot screen, not looping
[UPDATE 1/12/16 0112PST]
My friend decided sent the phone back to HK LG CS, thank you for all who view this post.
Hello
I bought a LG G3 a month ago.The model was D855 and running on stock kitkat.Later i updated my phone to Marshmallow using Lg flash tool 2014 but it showed some errors [no network,no wifi,no bluetooth] and the model number converted to D855V. Then searched and found my device with LS990 motherboard and D855 casing by getting help from this http://forum.xda-developers.com/lg-g3/help/d855-converted-to-d855v-t3121183/page4
As my device is LS990 i found solution to restore it using this method http://forum.xda-developers.com/spr...de-how-to-restore-sprint-lg-g3-ls990-t2852042 FAILED! I tried LS990ZV4 tot with LGUP8974.dll using flash tool.So i didn't have any solution to restore it without changing current build.prop to LS990 build.prop.And for that i need root access but i failed to root my stock Marshmallow .Then i was trying to downgrade my device using D855 firmwares where stock Lolilpop worked but no MTP connection.I decided to go for stock Kitkat so that i can root and change build.prop but it occurs bootloop when i flash with stock kitkat.I tried different version of D855 kitkat firmwares but the result is same NO SUCCESS! .And today i was trying to flash another version of Kitkat firmware which caused BRICKED my phone.Now download mode is not working.Only Fastboot mode.
There are some solution to fix Download mode.But i don't know which model to try for solution LS990 or D855 ?
How can i Unbrick and restore my phone to LS990?
TIA
I know the downgrading procedure using LGUP.
I tried downgrading Marshmallow firmware F500S20m and F500S20v to Lollipop F500SAT-00-V11i-SKT-KR-NOV-10-2015+0.tot, but the phone got stuck into bootloop after successful flashing and factory reset did not help.
Upgrading it back to Marshmallow F500S20m made everything work normally.
Which is best website to download LG F500S firmwares?
Successfully downgraded F500S from Marshmallow to Lollipop using this.
https://forum.xda-developers.com/g4/general/tot-lg-g4-korean-f500l-tot-flash-files-t3294417
Firmware used to downgrade to Lollipop: LGF500LAT-00-V11d-LGU-KR-SEP-21-2015+0.tot
However, the model number is now shown as F500L in settings.
i downgrade my h815 with lg bridge from nougat v30 port H-rom to mm with out flash first mm bootloader and now phone is stuck in download mode in 24% in lg bridge, i tried with lgup but is a unknown model, my model now is V300.... after this i tried LGflashtool v1.8.6.527 but filed to load
You can't downgrade from Nougat if you flashed the Nougat bootloader first. You need to flash the previous bootloader.
hello everyone.
I flash by mistake on my lg g4 h815 a korea telecom f500 version of 7.0 nuget everything works until I notice that the device not recognize my usim at all so i try again with lgup to flash another global version of 7.0 nuget and the device get in to a brick right now even with lg bridge its not let me update or to fix it.
there is a way to roll it back and solve the problem please?
thanks for all the help!
i want to add please that the device is unlocked.