Service code Lenovo *#*#4636#*#
Service code ZTE *983*0#
Service code OnePlus *#*#2346579#*#*
Service code Honor *#*#2345#*#*
Service code Motorola *#*#2486#*#*
Service code Samsung *#0*#
Service code Xiaomi *#*#6484#*#*
Service code Alcatel *#2886#
Service code Oppo *#899#
Service code Huawei *#*#2846579#*#*
Service code Sony *#*#7378423#*#*
Service code Vivo *#*#225#*#*