Backed up phone. Set up phone as new with clean 8.1. Problems jailbreaking. Numerous complications. Finally jailbroke. Restore from backup. Wait forever. Set up Apple Pay (again). Enter all kinds of crap again (touch ID, passwords, etc). Phone app crashes and does not accept any input. Troubleshoot not effective. Restart phone. Oh, no. Stuck in boot mode (Apple logo on black screen). Hard reset. Same thing. Hard reset. Same thing. (repeat) Restore as new. Jailbreak now gone. Restore from backup. Set up Apple Pay and same crap again as above. Phone works with no jailbreak. 2 Hours gone for the same phone I had in the beginning. Don't want to go through all that again. The End. I'm so dumb I will probably try again some other time.