Retevis L51 firmware v1.38

Retevis · Released Aug 21, 2026 · First seen Sep 12, 2026

Source: retevis.com

v1.38 is the latest firmware for the Retevis L51, released August 21, 2026.

What's in this update

L51 Upgrad​e: Team-up Firmware (via Invi​tation Code)

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See the full firmware history for the L51