You may want to try reformatting that card as described here or try an other card [2 - 8 GB].
SV04 firmware & touchscreen software need to match. These are working combinations of my recent versions. I run the newest one on my SV04.
SV04-IDEX-3D-Printer-Marlin-firmware-v1.14.2 & SV04 Touchscreen v1.14
SV04-IDEX-3D-Printer-Marlin-firmware-v1.14 & SV04 Touchscreen v1.14
SV04-IDEX-3D-Printer-Marlin-firmware-v1.1.B3.12S “SIZZLING VERSION” & SV04-Touchscreen-v1.1.B3.12S
SV04-IDEX-3D-Printer-Marlin-firmware-v1.1.B3.12 & SV04-Touchscreen-v1.1.B3.6
Good luck
Björn