so i have an issue im hoping i can get some advice on. i have a verizon gs4, which from what ive read up on is unlocked by default due to FCC regulations n whatnot. so, initially i had issues getting it to see the tmobile/att towers. now it does. i inputted the metropcs APN (thats the network im on) from my branded galaxy light verbatim. im still not able to connect to tmobile. its on GSM mode right now, and after about 30 second of searching it will eventually pull the ATT and Tmobile towers, but wont connect.
my sim card from my light is in it, sees my phone number just fine. a few times when its rebooted (i forced the reboot), it pulled 2 bars on the radio, but disappeared about 10-15 seconds later. its also trying to pull voicemail, as it keeps saying press *86 to access new voicemail.
do i need to go in and have the IMEI registered on their network before the phone will see their network and keep the signal?