Hello.
I bought 5xTMC5160 drivers form "FYSETC 1th Store" on AliExpress, order 705142322658230.
The problem is: 1 driver works, 4 other does not work. I inspected SPI lines with multimeter and found out, that SCK-GND resistance is only 11 Ohm on 4 drivers. So if I install 1 working driver, everything is OK, but if I install any other driver with working one Marlin says "Bad responce!", because SCK line is tied to the ground. AliExpress manager instructed me to bend away CLK pin and connect it to the GND, but it did not help. I tested drivers on SKR v1.3 and on FYSETC F6 v1.3. AliExpress manager told me to post here.