android roms and firmwares

pahingi naman po ng official stock rom please po, matagal na ako nag hahanap kaso puro fake. Salamat sa sasagot.

Acer Z500 Error flashing via SPFT, brom error s_ft_download_fail (4008). ganyan yung lumalabas na dedetect naman siya tapos lalabas yung red progress bar then hindi na tutuloy sa pag flash. I allready tried many Stock Firmware for this phone and SPFT versions even different FLASHER TOOLS pero...

Pa tut naman po kong paano iupgrade ang lollipop 5.1 to higher android version like marshmallow or nougat. Myphone my36 po cp ko. Thanks.

hi po ask lang sana kung panu ayusin myphone rio grande..d na gumagana hard reset yung vol. down at power button d na nag proproceed sa recovery and wipe option. rooted po to

mga ts pa help naman po pano po ba magback up ng stock rom sa O+ usa sonic ... meron po kasi akong isang stock sa logo na unit at meron akong friend na may same na unit pano ko po ba ma cocopy ang stock rom nya.. tia......

Goodevening po haha mali umaga na e Goodmorning ho gusto ko lang magpatulong bootloop po yung my phone agua rio lite ko pano mahahard reset? sinubuka ko pyung hold volume up and down button tapos power button lumabas yung recovery tapos downloading mode pero pag pipindutin ko na yug volume up...