I have a Moto X 2nd gen. I want t remove this phone from my Republic account and use it on a T-Mobile accoumt. They provided a T-Mobile sim card for this model of Moto X, but when I add switch the Sprint card for the T-Mobile and do a complete reset of the phone, it still comes up with the Welcoem to Republic Wireless setup screen. How can remove the Republic Wireless stuff?
I’m afraid what you’re trying to do isn’t possible. The OS modifications on the Moto X 2nd Gen make it compatible with only Republic: https://community.republicwireless.com/docs/DOC-1194-republic-wireless-phones#jive_content_id_FAQs
I would just sell the phone on Swappa. Republic phones are still selling at a premium.