If you assemble TMC 2208 drivers , do not need change firmware ,
but When install the driver , the driver direction need to be opposite from before A4988 direction,
and also need change the line sequence of the motor cable at the end of the main board.
below video for your reference.
generally speaking, do not need adjust voltage, 0.9V-1.2V is ok
https://www.youtube.com/watch?v=fmwMq9t-Nxc&t=40-
s
X
TOP