Controller Firmware History 2022-11-16 (pdf)

iMS4-P Controller firmware v2_3_85-upgrade (Zip)

iMS4-P Controller firmware v2_2_82-upgrade (Zip)

Synth Upgrade applies to rev-D onwards.

Synthesizer Firmware History 2023-07-28 (pdf)

iMS4-P Synth firmware REV D Only v4_1_131-upgrade (Zip)

iMS4-P Synth firmware REV D Only v4_1_129-upgrade (Zip)