Diag mode

[Gabriel Stefan1]

How can i enable Diag mode on my Htc U Ultra?

 

[B. Diddy]

Welcome to Android Central! See if this helps: https://www.hardreset.info/devices/htc/htc-u-ultra/codes/

 

[Gabriel Stefan1]

I've tried, nothing

 

[B. Diddy]

Ok, how about this? https://forums.androidcentral.com/e...phone-when-theres-a-probl.html&token=kyvbx3fC. The difference is that there are asterisks included in the code.