GSM or CDMA . how do i know ?

[Zardox]

Got my HTC Diamond touch p3700

How do i know if its GSM or CDMA ? becuse i want to flash my phone so i can get win 6.5 on it!

[Rudegar]

if you got a sim card then it's gsm

[Farmer Ted]

Flash the gsm hard spl onto it. If you brick your phone, it was probably cdma.