[juan_junior99]

downgrade is possible

LG 2-3G Tool v9.32
supported models: 1440

Reading timeout, check cable
Error Code: ReadInfo,1,1
Elapsed: 2 secs. --> (v9.32)

Mode: Emergency
Model: LS775
Read info...
Model name: LGLS775
Software verion: LS775ZV9
Android verion: 7.0
IMEI: 990002070889009
Elapsed: 2 secs. --> (v9.32)

Phone mode is DOWNLOAD
Start flashing.
Open TOT File : Y:\Celulares\GSM\Flash\LG LS775\LS775ZV8_07\LS775ZV8_07.tot
Model : LGLS775
SwVersion : LS775ZV8
BuildTime :
Total Files : 21
Model name: LGLS775
Software verion: LS775ZV9
Android verion: 7.0
IMEI: 990002070889009
Laf flash error: incompatible partition table [start] 01D56000:01D5BFDD, grow
Start direct download mode
Write "PrimaryGPT" partition #1 of 21
Write "sbl1" partition #2 of 21
Write "tz" partition #3 of 21
Write "hyp" partition #4 of 21
Write "rpm" partition #5 of 21
Write "aboot" partition #6 of 21
Write "sbl1bak" partition #7 of 21
Write "tzbak" partition #8 of 21
Write "hypbak" partition #9 of 21
Write "rpmbak" partition #10 of 21
Write "abootbak" partition #11 of 21
Write "persist" partition #12 of 21
Write "metadata" partition #13 of 21
Write "laf" partition #14 of 21
Write "boot" partition #15 of 21
Write "recovery" partition #16 of 21
Write "recoverybak" partition #17 of 21
Write "sec" partition #18 of 21
Write "factory" partition #19 of 21
Write "modem" partition #20 of 21
Write "system" partition #21 of 21
Erase "rct" partition
Done.
Elapsed: 249 secs. --> (v9.32)

after hard reset