Do you have Tmobile or another GSM carrier and you want to use your Sidekick 3 with your current service provider? You will need to get your Sidekick 3 unlocked. Dr. Cell Phone can provide you with an Sidekick 3 unlocking service. (This feature will not work with CDMA phones- Verizon, Sprint PCS, Metro PCS, Cricket, Boost, or any other service provider not using a SIM card) . This service includes PARTS and LABOR. Please select shipping options when you checkout. The Sidekick 3 Unlock service offers a fast turnaround time. Repairs for the Sidekick 3 Unlock service can be done in under an hour!