---
title: "E21 V1.0 Firmware"
slug: "e21-firmware"
updated: 2026-03-11T03:20:22Z
published: 2026-03-11T03:20:22Z
canonical: "knowledge.akuvox.com/e21-firmware"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.akuvox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# E21 V1.0 Firmware

[E21 Firmware V1.0 (Click to download)](https://drive.google.com/file/d/13XKhndV6ceZ6e2lvGHLUvo_npO5X9EPd/view?usp=share_link) **Version:** 21.31.5.11 **Release Date:** 06.05.2019