I am probably a giant noob, but what is "engineering SPL"?
I have a stock (rooted) PVT 32B sapphire (vodafone/google branded) but first method doesn't work. when I input "fastboot devices" something shows up (I assume it's my phone) but when I input "fastboot flash recovery recovery-RA-sapphire-v1.7.0G.img" nothing happens.
the second I can not try as I do not have custom recovery at all.
the third method isn't working eighter. now that I figured out what the terminal application was and downloaded, granted superuser, then write "flash_image ..." it says it didn't found the img altough it is on the SD card. am I missing something?
any nooblike step-by-step solutions welcome. thanks