Carrier Unlock??

[pitbullmommy45245]

I had my phone unlocked through tmobile. I ended up leaving tmobile and they aren't working with me to pay off the phone. I currently have it working on att but I'm worried that in a couple months it's going to lose service bc they blacklisted it. I'm on att prepaid. Does anyone have a personal experiance with a bad imei tmobile phone working on att prepaid or even another prepaid service like straight talk or even verizon?

 

[DAD12345]

I had an issue with Verizon once with a note 3. It was a Verizon phone and I flashed a Beanstown rom and this tool called Casual by Adam Outler and it removed the lock bootloader and installed a patch to stop the update from we very coming through its been a couple of years ago but search like that. But in most cases if they unlocked it your fine. I'm still with them and have been for 6 years.