The HTC U12 Plus has an enormous amount of technology on board, which can unfortunately become defective. For this reason, if you suspect a defect, you should definitely take a look at the secret service menu of your smartphone.
In this menu you can check various technical functions on the HTC U12 Plus: These include for example: sensors, loudspeakers, LED, screen and much more And so the secret service menu can be opened on the HTC U12 Plus:
- Open the phone app
- Switch to the number field (number field)
- Enter the following code: *#*#3424#*#*
- Confirm the query with okay and the secret service menu will be displayed to you afterwards. Select a function test here.
This then checks the function of the corresponding hardware of the HTC U12 Plus. You now know how to open the secret service menu for testing hardware functions on the HTC U12 Plus.
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