Retevis RA89 firmware `v91.38`

Retevis · Released Dec 30, 2025 · First seen Sep 12, 2026

v91.38 is the latest firmware for the Retevis RA89, released December 30, 2025.

What's in this update

Release notes not published by vendor — see official page. Check Retevis's website for the full details of what this update changes.

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