Test mode secret code
أكواد التيست مود لإختبار وظائف الهاتف
Huawei -------------------- *#*#2846579#*#*
Infinix ---------------------- *#*#88#*#*
Samsung ---------------- *#0*#
Oppo ---------------------- *#808#
Xiaomi ------------------ *#*#64663#*#*
Lenovo ------------------- ####1111#
Meizu --------------------- *#*#3646633#*#*
Sony ----------------------- *#*#7378423#*#*
HTC ------------------------ *#*#3424#*#*
ZTE ------------------------- *#*#4636#*#*