SKR 1.4 Turbo - Withhout SD-card reader, bricked?
You may get lucky flashing firmware with the STM Cube Programmer, though I haven't tried that.
The schematic for the SKR 1.4 Turbo shows that the relevant pins for the SD card are also accessible via the 2x3 SPI header - except for the P0.27 pin used for &quot;SD DETECT&quot;, which you may have to circumvent.
I believe you should be able to use an &quot;SDRamps&quot; module and connect that to the SPI header via jumper cables.