You can check some device specification of your Samsung mobile phone by using the IMEI codes, try to below code to check the various types of sections on your mobile
IMEI number: * # 0 6 #
Software version: * # 9 9 9 9 # albo * # 0 8 3 7 #
Net Monitor: * # 0 3 2 4 #
Chaning LCD contrast: * # 0 5 2 3 #
Memory info: * # 0 3 7 7 # albo * # 0 2 4 6 #
Reset memory (SIMLOCK`a removing!!!): * 2 7 6 7 * 3 8 5 5 #
Reset CUSTOM memory: * 2 7 6 7 * 2 8 7 8 #
Battery state: * # 9 9 9 8 * 2 2 8 #
Alarm beeper: * # 9 9 9 8 * 2 8 9 #
Vibra test: * # 9 9 9 8 * 8 4 2 #