flashing / Solderless hand-off
flash the firmware
feldd does not ship its own flasher. We host the firmware build and walk you through Solderless, the trusted community tool. Back up your profiles first.
before you flash
Re-flashing the SAME feldd build keeps your on-device profiles (they live in a separate NVS partition).
Switching firmware (stock or any other build) wipes the on-device profiles. Export first.
- 01
export your profiles first
Back up before you flash. Open the configurator, connect your SP-1, and export all 8 slots to a .feldd file. Skip this only if the device has no profiles you care about.
open the configurator to back up -> - 02
download feldd.bin
Grab the firmware build feldd.bin. You will upload this exact file in the flasher.
download feldd.bin - 03
enter firmware-loading mode
Power off the SP-1. Hold track 1 + track 4, then plug in USB-C while holding. Open solderless.engineering in this browser; it should see the device in DFU mode.
Once it is in DFU mode, open solderless.engineering.
- 04
upload + flash feldd.bin
In solderless.engineering, choose the feldd.bin you downloaded, flash it, then unplug and replug the SP-1 normally.
- 05
come back + connect
Return here and connect your SP-1 in the configurator to verify it works and reload your exported profiles.
Connect your SP-1 ->