IPhone zangte adingin Secret Codes ahi hi.
1- *#06# Displays your IMEI. No need to tap Call. IMEI is the one-of-a-kind identifier for your mobile phone hardware.
2- *3001#12345#* and tap Call Enter Field Mode. Field mode contains plenty of iPhone inner settings, newest network and cell information
3- *#67# and tap Call Check the number for call forwarding when the iPhone is busy. And again, but for when the iPhone is busy