Radioddity GD-77 firmware v4.3.9

Radioddity · Released Dec 17, 2021 · First seen Sep 6, 2026

Source: radioddity.com

v4.3.9 is the latest firmware for the Radioddity GD-77, released December 17, 2021.

In short — summary by updatemystuff.com

Fixes LED flashing, high-temperature lock loss, and lock key interface responsiveness.

  • LED flashing issue resolved
  • High-temperature lock stability on 1846s component improved
  • Lock key interface responsiveness fixed

Written from Radioddity's release notes, which are printed in full below.

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What's in this update

  1. Handle the issue where the emitting light will flash.
  2. The initial va​lue was changed for the problem that the new 1846s high temperature may lose locks
  3. Keep pre​ssing certain keys after changing the lock key to prompt the interface for a long time

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Other versions for this product

See the full firmware history for the GD-77