microHAM micro KEYER II firmware v5.4

microHAM · Released May 6, 2013 · First seen Sep 9, 2026

Source: microham.com

v5.4 is not the latest firmware for the microHAM micro KEYER II: the current version is v6.21 (October 8, 2020). Go to v6.21

What's in this update

  • bug fixed: commands​ SB, DV was mistakenly included to K2 protocol
  • bug fixed: SteppIR/SDA100 Remote Driver​ bit treated as "HAM mode"

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Other versions for this product

See the full firmware history for the micro KEYER II