Evidently, if you’re also looking for the HTC secret codes, then here’s the complete list.
Device information program #*#4636#*#*
Field Test *#*#7262626#*#*
HTC Function Test Program *#*#3424#*#*
Display Software version *#*#1111#*#*
Display hardware version *#*#2222#*#*
Wi-Fi Mac Address *#*#232338#*#*
Bluetooth Mac Address *#*#232337#*#
GPS Test *#*#1472365#*#*
GPS Test 2 *#*#1575#*#*
Bluetooth test *#*#232331#*#*
Display test *#*#0*#*#*
Touch Screen version *#*#2663#*#*
Touch Screen Test *#*#2664#*#*
Debug UI #*#759#*#*
Factory format *2767*3855#
