Secret Codes HTC U12+ - Hidden Mode / Tricks / Tips / Secret Menu

The following video presents the way of using the secret codes in HTC U12+. Check out the list of codes that works in HTC U12+. These tricks will open the hidden modes where you can test the hardware features, read secret info and use some advanced options. Here you can enter HTC Function Test, Android Testing Menu, Google Play Services and other.
How to use secret codes in HTC U12+? Which secret codes works on HTC U12+? How to open hidden menu in HTC U12+? How to use advanced settings in HTC U12+? How to open hardware test on HTC U12+?
More Info:
www.hardreset....

[@fxdyba]

Hi, thanks for the video ! I have a U12+ with single sim. Do you know how to upgrade to double sim fonction ? Best regards.