so we have asus flash tool?.....can u post link pls....and in case I end up soft bricking can I use flash tool to get the sock rom on my device again?
Which tool should i use to flash the raw firmware, Asus flash tool or intel phone flash tool? Other?
I think only AFT.
What do i get afterflashing the 550 raw, bootloader(fastboot)? recovery? both?
Almost fully working phone. Wrong DPI-like image...
Can i flash the 550 raw image to my 551 and next flash the 551 zip as you mention
Will that work?
Is that safe?
If you fully understand what you do - yes.
Did you test it?
By myself - no. But other people already tested and all ok...
What about raw firmware for 551?
Flash 550 RAW, after flash 551 ZIP. There is no 551 RAW for now.
is there any way to relock bootloader?
AFAIK, bootloader will be relocked after flashing RAW firmware via Asus Flash Tool.