I have a Verizon Galaxy S3 I535 I have been using on Verizon's network for about 2 years. I am switching to a local carrier that shares towers with Verizon. I am trying to use my I535 on the local carrier. I got a SIM card from the local carrier, put that in my phone and I can make calls and receive text messages but not send them.
In order to attempt to resolve this issue I planned to Wipe the phone and put a custom ROM on to ensure that none of Verizon's software or settings is preventing the texting from working. Problem is I am running KitKat version 4.4.2 that has Verizon's bootloader lock.
I got the phone rooted via Towelroot and CW ROM Manager installed. (rebooted into recovery mode got the "Verizon found unauthorized software yada yada." Got the phone back to a "normal" state with 4.4.2 rooted.)
My questions are:
1. Do you think putting a custom ROM on the phone will resolve my ability to send text messages?
2. Texting works on these same towers using Verizon. Can the backend hardware at Verizon allow the phone to work properly, but not the local carrier? (I have verified Local carrier Galaxy S3 is a different model number)
3. Is it possible to overwrite the bootloader/rom via ODIN
4. Is it possible to brick a phone so bad that you cant even reload the default OS via ODIN