Whenever we makes out a plan to have a used device for us we only check for basic thing like the screen does not have any scratches,the battery does not drains fastly,speakers are fully functional or not..etc...
But what we leave behind are the technical faults which cannot be checked in short time..but for that too I provide you with a solution..I got these codes after my long efforts which will be very usefull for all of you..
So try them out..
(1) *#*#0*#*#*
This code will let you know about the screen of that android device.After pressing this code , the device will display you all the features about the display and spectrum of your screen.
(2) *#2664#
to know more visit below
Linear Mode
