Like Android, the iPhone also has a number of secret codes that are not specified by Apple either in the user manual or on the official website. What's the code?
* # 06 #
This will display the IMEI of your iPhone.
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* 3001 # 12345 # *
This code opens the Dashboard mode which contains all cellular and network information.
* # 67 #
To check call forwarding or call forwarding when the mobile phone is busy.
* # 33 #
To check and control calls, create restrictions on outgoing call mode, and also be able to check such as fax, SMS, voice, information, etc.
* # 21 #
For call forwarding query settings. Or you can see if you have enabled or turned off call forwarding for fax, SMS, voice, SyNC, and paid access plans.
* 3282 #
To inform you about the use of information information.
* # 61 #
To check the number of missed calls.
* # 62 #
To confirm the number when the call forwarding service is not available.
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* 3370 #
EFR (Full Rate Boost) mode improves the sound quality of your iPhone, but reduces battery life slightly.
* # 5005 * 7672 #
To check the SMS center.
* 331 *
Remember, don't use the # suffix when typing code. There is also the function of this code as a way to call abroad to unlock the code on the iPhone. Then it will be transferred to the network service provider.
* # 43 #
Call Waiting Status.
* 43 #
Enable iPhone standby mode.
# 43 #
Disable iPhone waiting mode.
* # 31 #
This allows the user to hide the number.
# 31 # phone number + call
To hide your phone number when making a call to the target number
## 002 #
This will disable all call forwarding.
* 5005 * 25371 #
Check if the warning system is working properly or not.
* 5005 * 25370 #
Disable the warning system after the check test.
* # 5005 * 7672 #
Check where the text message was sent.
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TIPS & TRICKS