How do I switch my htc merge from us cellular to t-mobile? Possible Duplicate:
  Can I use my device on a different carrier?  




I have unlocked it and I am trying to s-off, I am ignorant to cell hacking/programing ad don't know if I am doing anything that will help or hinder my operation. I have just been following youtube or sites advice but so far nothing has really helped. I have the t-mobile sim card but us cellulars programing is preventing service.

Please help(and use laymans terms cause like I said I am not too savy when it comes to this).
You cannot. HTC Merge is a CDMA phone and US Cellular is a CDMA network, while T-Mobile is a GSM carrier. The two technologies are not compatible, and it's not possible to use phones between them.