These days smartphones have plenty of settings and customization apps available. So chances are that you can modify and monitor pretty much everything you want to but, most of the times that is not the case. There have always been some settings that require a little bit of tinkering to find. The handsets software usually keeps some settings hidden from average users. However, these settings are rarely hidden from technicians and tinkerers how able to delve more deeply into the software. Accessing these hidden settings require the entry of secret USSD codes, and if you have them you can pretty much access every setting of your device.
All smartphone operating systems have their own batch of secret USSD codes. Here we are going to give you a complete list of codes for your Apple iPhone. All of these USSD codes need to be entered via the Phone app on your iOS device. All you need to do is enter the respective digits and then tap on the call button to activate the code. It is very difficult, but you do need to be careful because messing around with these codes can sometimes cause some serious problems down the line. You have been warned.
Now, with the warnings out of the way, here are the secret USSD codes for your Apple iPhone:
*3001#12345#* – Activate Field Mode, which contains all of your iPhone’s technical settings. It also converts the signal bars into an actual number.
*#5005*7672# – Check SMS center.
*646# (Postpaid only) – Display your available minutes.
*225# (Postpaid only) – Check your current bill’s balance.
*#31# – Choose whether to hide your number.
*3370# – Enable or disable EFR , which improves your iPhone’s voice quality, but will quite likely reduce battery life.
*#21# – Check call forwarding status.
*777# – To check the account balance for Prepaid only.
*#62# – Check which number calls will be forwarded to if no service is available.
*#76# – Check connecting line presentation.
*#67# – Check the number to be used for call forwarding.
*#33# – Check whether anything is barred, such as international calling etc.
*#61# – Check the number of missed calls.
*#06# – Displays your iPhone’s IMEI number.
*#43# – Check call waiting status.
*43# – Activate call waiting.
#43# – Deactivate call waiting.
These were all the secret USSD codes for you Apple device. Make sure that you are careful when you are using them, one wrong move can alter your smartphone beyond repair.