Samsung
*#0*# 

Sony
*#*#7378423#*#*

HTC
*#*#3424#*#* 
*#*#4636#*#*

LG
277634#*#

Asus
*#*#4636#*#*

Huawei
*#*#3646633#*#*
*#*#2846579#*#*

Alcatel
*#000000#