Buy Original Samsung mobile. Cheeking Genuine phone Use this Code:
*#06# [Displays device IMEI number]
*#1234# [Displays device current firmware].
*#*#1472365#*#* [GPS test settings].
*#*#197328640#*#* [Service mode main menu].
*#*#4636#*#* [Diagnostic and general settings mode].
*#0*# [General Test Mode].
*#0228# [ADC Reading]
*#0283# [Audio Loopback Control].
*#0289# [Melody Test Mode].
*#03# [NAND Flash S/N].
*#0588# [Proximity Sensor Test Mode].
*#0589# [Light Sensor Test Mode]. *#0673# [Audio Test Mode].
*#07#[Test History].
*#0782# [Real Time Clock Test].
*#0842# [Vibra Motor Test Mode].
*#12580*369# [SW & HW Info].
*#1575# [GPS Control Menu].
*#2263# [RF Band Selection].
*#232331# [Bluetooth Test Mode].
*#232337# [Bluetooth Address].
*#232338# [WLAN MAC Address].
*#232339# [WLAN Test Mode].
*#2663# [TSP / TSK firmware update].
Don't buy Copy phone.
