There’s actually more to the dialer screen on your OnePlus than meets the eye. Besides its obvious purpose of calling people, there’s a vast array of secret codes that you can input to troubleshoot your device, in addition to revealing important information, making anonymous phone calls, and so much more.

OnePlus has coded in numerous secret diagnostic modes that can be accessed from the Phone app’s dial pad to aid in production line quality control and after-sales troubleshooting. In addition to these, popular GSM-based carriers like T-Mobile also come with their very own secret codes to… more

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