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First off Bigtreetech is not a good option. They have massive fail records. Your troubles might be involved in incorrect working eeprom from the board (btt tends to have failed eeproms). They do not save options properly e.g. 80 istead 40 steps.
Second off, you cant really change anything via TFT on btt board, you need to stick with usb terminal and gcode marlin commands then maybe it will work
That's IF you insist in going to failed bigtreetech journey.

I've sent off all of those boards right away and replaced with MKS.
My advice is to do the same, return the board and replace with something else, btt is junk.