I bought a note 9 new and unlocked from Amazon. It's the T-Mobile version. When I got it I put the service through straight talk Verizon. The boot logo did not change from the T-Mobile one, service did however work but with a huge issue. It's connect to 4g full bars for about a minute and work, but then about a minute later would shut off and it's get no bars and say "e" next to the signal status. So I switched even though I know Verizon works good in my location to TMobile through straight talk. I'm still having the same issue though. I've tried disabling and enabling bands. I've tried APN stuff. Nothing seemed to help. What can I do now?