Hello there,

I have a Tab S7+ 5G (SM-T976B) received from Samsung Sri Lanka. They have changed the CSC to SLK and since Samsung doesn't provide any firmware to this model in this country, I didn't get any for 5 months. I'm hoping to change the firmware to BTU or XSA since they have the same network bands as Sri Lanka. I have doubts about these things,

  1. After I flashed new firmware, will it affect my current LTE connection? If it affects, is there any way to resolve it?
  2. After I flash it, will I receive BTU / XSA firmware updates for the device afterward?
  3. If I follow instructions on Sammobile, will it change the CSC, or Do I need to change the CSC to BTU or XSA after I flash the firmware?
  4. Are there any downsides to doing this?

Current Versions :
PDA - T976BXXU1ATI2
CSC - T976BOXM1ATI2

Flashing to (BTU) :
PDA - T976BXXU1BUA8
CSC - T976BOXM1BUA8

Flashing to (XSA) :
PDA - T976BXXU1ATK3
CSC - T976BOXM1ATK3

Thank you.