Compute Module • CM5 with eMMC + WS NANO-B board

Trying to get Compute Module 5 (Wifi + eMMC version) working on Waveshare CM5-NANO-B board.

1. I hold BOOT button and connect USB-C cable to the computer
2. Device is correctly detected in Windows Device Manager as "BCM2712D0 Boot"
3. I run rpiboot-CM4-CM5 and everything runs without error - downloaded from here https://raw.githubusercontent.com/raspb ... _setup.exe
4. I run Raspberry Pi Imager and flash Raspberry Pi 5 (Compute Module 5) > Raspberry Pi OS Lite (64-bit) to found 32 GB eMMC storage
5. Everything runs correctly and finishes without errors
6. I disconnect board from the computer
7. I connect RPi5 USB-C power adapter to the board
8. Only repeated 3 long and 1 short green LED blinks appear and nothing more

According to the LED warning flash codes, it means "SPI EEPROM error - Pi 4 and Pi 5". What's wrong? How to make it running?

Statistics: Posted by kolsi — Tue Jan 06, 2026 10:06 am

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