Radtel RT-4D firmware

Radtel · RT-4D · RT-4D · Handheld

Latest firmware for the Radtel RT-4D is v3.25 (February 5, 2026).

Changelog

RT-4D firmware changelog

  1. v3.22 v3.25

  2. v3.21 v3.22

  3. v3.19 v3.21

  4. v3.16 v3.19

  5. v3.14 v3.16

  6. v3.12 v3.14

  7. v3.11 v3.12

  8. v3.10 v3.11

  9. v3.10 first tracked

Firmware history

All versions below were published by Radtel on radtels.com. Third-party and modified firmware is never listed.

  1. Version 3.25 Latest Released Feb 5, 2026 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  2. Version 3.22 Released Dec 15, 2025 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  3. Version 3.21 Released Dec 1, 2025 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  4. Version 3.19 Released Nov 13, 2025 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  5. Version 3.16 Released May 5, 2025 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  6. Version 3.14 Released Mar 21, 2025 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  7. Version 3.12 Released Dec 6, 2024 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  8. Version 3.11 Released Dec 4, 2024 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download
  9. Version 3.10 Released Nov 30, 2024 First seen Sep 12, 2026

    Source: radtels.com

    Release notes not published by vendor — see official page.

    Release notes & download

Watch the RT-4D for updates

Get an email the moment Radtel publishes new firmware. Just your email — no account or password needed.

More Radtel handhelds we track