---
title: "E21 V2.0 Firmware"
slug: "e21-v20-firmware"
updated: 2026-07-08T02:23:36Z
published: 2026-07-08T02:23:36Z
canonical: "knowledge.akuvox.com/e21-v20-firmware"
stale: true
---

> ## 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 V2.0 Firmware

[E21 V2.0 Release Firmware (Click to download)](https://drive.google.com/file/d/15pb2enzLT-sqIYhg99b4obMGGfenRNnR/view?usp=share_link)

**Version:** 221.30.1.106

[E21 V2.0 Beta Firmware (Click to download)](https://maintenance.akuvox.com/firmware/release/beta?model_name=E21T30)

**Version:** 221.30.10.15

> [!NOTE]
> Note
> 
> - It is recommended to use Release and LTS version firmware.

---

## Release Notes

### Version: 221.30.10.15 (Beta)

**Release Date:** June 30, 2026

**Supported SmartPlus Version:** V6.0

#### New Features

1. Support setting date and time manually.
2. Extended limitation of dial time to 300 seconds.

---

### Version: 221.30.10.14 (Beta)

**Release Date:** June 17, 2026

**Supported SmartPlus Version:** V6.0

#### Optimization

- Improved the user experience.