[BUG] MKS_ROBIN_NANO_V3 SD-Card and USB drive are not detected

[anomalchik]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

After updating the firmware from the bugfix-2.1.x branch from 2024-10-21 to 2025-03-07, the drives stopped being detected. It also causes random reboots.

Bug Timeline

2024-10-21 - Work, 2025-03-07 - Doesn't works

Expected behavior

Detecting SD or USB drive when it is connected

Actual behavior

Not detecting. It also causes random reboots during connect a USB flash drive.

Steps to Reproduce

1. #define MOTHERBOARD BOARD_MKS_ROBIN_NANO_V3
2. #define SDSUPPORT
3. #define USB_FLASH_DRIVE_SUPPORT
4. #define USE_OTG_USB_HOST
5. #define MULTI_VOLUME
6. Build mks_robin_nano_v3_usb_flash_drive_msc variant.

Version of Marlin Firmware

buigfix-2.1.x 2025-03-07

Printer model

Custom

Electronics

MKS_ROBIN_NANO_V3

LCD/Controller

MKS_TS35_V2_0

Other add-ons

none

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

config.zip