STC8G1K08A Type-C Programming Issue

[thevien257]

Problem

Cannot program the board using Type-C USB. Getting "USB Device Not Recognized" error.

What Works

✅ USB-to-TTL (CP2102) programming works perfectly - board hardware is confirmed functional

What I Want

❌ Type-C USB direct programming (as advertised in product description)

What I've Tried

1. Installed STC-ISP software
2. Entered bootloader mode (hold kb1 button → plug cable → release after 5 seconds)
3. Tried multiple Type-C cables and USB ports
4. Disabled Windows 11 driver signature enforcement
5. Attempted manual driver installation

Current Error

"USB Device Not Recognized"

• Windows 11: Device shows as "Unknown USB Device (Device Descriptor Request Failed)" in Device Manager
• Linux: Same issue - device not recognized/enumerated properly

System Info

• OS: Windows 11 and Linux (both tested)
• Board: STC8G1K08A Type-C version (21mm x 19mm)
• USB-TTL: CP2102 (working on both systems)

Questions

1. Are there specific bootloader entry steps for Type-C version?
2. Does the bootloader firmware need updating?