i have an at&t s7 active that was frp and network unlocked. i am trying to use this on tmobile.
my s7 active is running android 7.0 G891AUCS2BQC2
i need the wifi calling option and like the S7A.
in another forum i saw posts regarding the S7 and S8 active i saw thoughts of needing to flash tmobile software to get this to work
the questions i haven't found a good answer for are below
1) is the tmobile firmware (S7 and S7 edge the same) could i use this on the S7 active. I don't wish to brick the phone
2) since Tmobile has S8 active could i use the S8 active firmware on the S7 active?