![Quote](images/metro/blue/misc/quote_icon.png)
Originally Posted by
bugztronic
check earpiece by dialling 112 and listen the emergency
check mouth piece by recording voice then play
check ringer by playing music and listen if have loudspeaker
check digitizer sensitivity (touch screen)
check LCD if have visible spot mark, dead line pixels, missing pixels and whitening
check camera by capturing
check dock port by charging and look on the upper right side symbol if you see PLUG SYMBOL meaning port have defect therefore cannot properly charge, If the symbol is FLASH SIGN meaning port is good and condition and chargeable.
Check by changing different sim to know if phone is unlocked.
check firmware and baseband of the unit especially iphone 3gs, iphone4 and iphone4s. go to settings >general>about> then look version and firmwares
if versions is 5.0 then this version cannot be unlock as of now
if Modem Firmware is 2.10, 3.10, 4.10 and 5.10, unit cannot be unlock.. you can unlock this firmware using GEVEY SIM..
and lastly ask them if the battery charge can stay more days on standby mode or dili ba ma low bat dayun...