Model: Treo 180 & 270
- Switch ON your phone without the SIM Card
- Enter *#*#Unlock Code#
Model: Treo 600 (Unlock method 1)
- Insert an authorized SIM Card and turn ON your phone
- Go to Menu and select “Phone Tool” or “Phone Application
- Enter on Virtual Keyboard: *#*#Unlock Code#
Model: Treo 600 (Unlock method 2)
- Insert an unauthorized SIM Card and turn ON your phone
- Enter the Unlock Code
