The O2 media slot drivers for the Fujitsu ST503x series of tablet PCs (ST5030, ST5030D, ST5031, ST5031D, ST5032, ST5032D) work well with Sony MemoryStick and CompactFlash cards, but appear to be horribly broken for SD cards. Upon inserting SD cards in the slot, symptoms may include:

• Media cannot be mounted
• Media can be mounted, but is not accessible
• System periodically freezes every few seconds
• Media randomly dismounts or throws file I/O errors

Solution

After trying various drivers for different brands and models of tablet and laptop PCs, the driver for the Fujitsu T42xx series of laptops appears to be working reliably. The driver can be obtained in the Support & Downloads section on the Fujitsu website:

1. Select Notebooks
2. Select T Series
3. Select T4220
4. Download and install Media Slot V2.16 or newer