Tuya-Convert
A collection of scripts to flash Tuya IoT devices to alternative, open-source firmware without soldering.
What is Tuya-Convert?
tuya-convert is an open-source tool that allows users to flash Tuya-based smart home devices with alternative, open-source firmware without requiring physical hardware modification. It exploits a vulnerability in Tuya's firmware to enable over-the-air (OTA) flashing, freeing devices from proprietary cloud services. The project addresses security and privacy concerns associated with Tuya's cloud while enabling local control and customization.
DIY smart home enthusiasts, IoT tinkerers, and privacy-conscious users who own Tuya-compatible devices and want to install open-source firmware like Tasmota or ESPurna. It requires basic Linux command-line knowledge and a compatible Wi-Fi adapter.
It provides a unique solder-free method to reflash devices, lowering the barrier to entry compared to traditional serial flashing. The tool is community-maintained, includes pre-built firmware binaries, and supports Docker for easy deployment, making it accessible to users without deep hardware expertise.
Overview
A collection of scripts to flash Tuya IoT devices to alternative firmwares
Use Cases
Best For
- Flashing Tuya smart plugs or light bulbs to Tasmota for local MQTT control
- Converting cloud-dependent IoT devices to ESPurna for enhanced privacy
- DIY smart home projects requiring solder-free firmware updates
- Security researchers testing Tuya device vulnerabilities
- Users wanting to backup original firmware before modification
- Running open-source firmware on ESP8266-based Tuya devices
Not Ideal For
- Devices that have connected to the official Tuya app and received automatic firmware updates, as this patches the vulnerability tuya-convert exploits.
- Smart home products using non-ESP8266/ESP85 chipsets (e.g., newer Tuya modules), since the tool is specifically designed for ESP-based devices.
- Users without access to a Linux computer with a compatible Wi-Fi adapter that can act as an access point, as required in the setup.
- Projects requiring guaranteed, out-of-the-box success without troubleshooting; compatibility varies and often depends on community-reported device lists.
Pros & Cons
Pros
Exploits a software vulnerability to flash devices over-the-air, eliminating the need for physical hardware modification, as emphasized in the key features and procedure.
Creates a local backup of the original stock firmware before flashing, providing a recovery option in case of issues, mentioned in the flashing process.
Offers a Docker image for isolated, dependency-free execution on any Linux system with Docker, simplifying deployment and reducing setup complexity.
Includes binaries for Tasmota and ESPurna in the package, making it convenient for users to start flashing without sourcing firmware separately.
Cons
Tuya has released multiple firmware patches that block the exploit, rendering many newer devices incompatible, as detailed in the PROCEDURE section with warnings about PSK ID 02.
Requires specific Linux setups and Wi-Fi adapters capable of acting as access points, limiting usability for users on other operating systems or with incompatible hardware.
Flashing can permanently damage devices or require soldering a serial connection for recovery, as warned in the README, which undermines the solder-free claim in failure cases.
Frequently Asked Questions
Related Projects
Arduino Core/32Arduino core for the ESP32 family of SoCs
Arduino Core/8266ESP8266 core for Arduino
PlatformIOYour Gateway to Embedded Software Development Excellence :alien:
ESPToolSerial utility for flashing, provisioning, and interacting with Espressif SoCs
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