Moreover, if you are into custom development, then you might have come across the DIAG Mode as well. Short form for Diagnostic Mode, it is used for carrying out some technical tweaks such as enabling “Full-port Switch” to activate WifiCalling/VoLTE with the PDC Tool. Likewise, this mode is also used for restoring the original IMEI or writing a new one onto your device. So how could you access this mode? Earlier, you only needed to type in *#801# in the dialer and the DIAG Mode will be right in front of you. However, the OEM recently pushed an update that blocked the DIAG Mode from being accessed via the *#801# code. So how could you then access this mode? Well, there exists a nifty workaround through which you could easily bypass this restriction and enable the DIAG Mode on your OnePlus device. Without further ado, let’s check it out.
How to Enable DIAG Mode in OnePlus when *#801# is not working
That’s it. These were the steps to enable DIAG Mode in OnePlus when the code *#801# is not working. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution at the earliest.
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