Firmware downgrade

Question

LG G3 D855 IMEI - 352645-07-684290-1

Software V30o-EUR-XX - LG UP, Flash tool, any "root" program doesn't work - nothing !!!

Some solution for downgrade ?

Answer 1

Model is LGD855

Region is 6HU

Latest version is D85530o_00_0425.kdz

Try search on xda how to downgrade. But this isn't safe.

Comments

my understanding is down grade to the lowest with patched tool lg up then unlock bootloader with lg bump and flashify then upgrade with twrp  to any custom or aosp rom you like I'm in the process of doing just this on my LG  g 3  VARIANT ..