Firmware update

The firmware can be updated using a standard Micro SD card. The card must be formatted with a FAT file system.  It is not possible to 'brick' or damage the unit during firmware update, if you experience an error - simply try again.

Download zip file below, and extract file to root of sd card.

Update procedure

  • Power off system 
  • Insert SD card into Jammafier
  • Press and hold both A and B button
  • Power on system 
  • Follow instructions on screen

Instead of powering off/on system, you can also disconnect/reconnect the DC jack on the DE10-nano.


Will be published here when available, and generally announced on Twitter if it's something major/important.

2021-12-22 - Fixes/improvements in this release

  • Relaxed voltage tolerances on startup
  • More intuitive voltage error screen
  • Configurable sync-guard