Need instruction sprint 920p

Hello guys, i need alittle help. Can you guys tell me the proper way to carrier unlock, and wipe/new imei on a sprint s6 model 920p. When i tryed before, there was no button to write super imei, or write cert. Id really appreciate it. Dont want to get frustrated if the phone ends up in bootloop again.

Also how do you write efs in pda? Thank you so much guys.