TYZS4 Reset & Teardown (FCC ID 2ANDL-TYZS4)
Factory reset and internal photos for Tuya Global TYZS4. Tuya / Smart Life smart plug.
January 15, 2026
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1 min read
Before you buy the Tuya Global TYZS4, check what's inside.
This is a Tuya TYZS4 Zigbee module, designed for integration into smart home devices. It features an ARM Cortex-M4 processor and operates on the Zigbee 3.0 protocol, making it suitable for low-power sensor applications.
⚠️ NOTE: Ensure correct battery polarity when replacing batteries. This module is not designed for mains power.
Quick Specs
- Manufacturer: Tuya Global
- Model: TYZS4
- Protocol: Zigbee
- Chipset: Realtek/Beken
- Ecosystem: Tuya / Smart Life
- App: Smart Life
🔧 Geek Corner (Flashing Info)
- Chipset: EFR32MG1B232F256GM48
- Flashable: ❌ No
- Info: The EFR32MG1B232F256GM48 chipset is not easily flashable with common custom firmware like Tasmota or ESPHome without significant hardware modification or specialized tools.
User Manual
Scanned pages from the official user manual:
External Photos
Photos of the device exterior:
Internal Photos
Teardown photos showing the PCB and components:
Verdict
The TYZS4 is a Zigbee device from the Tuya / Smart Life ecosystem.
📄 Click to view full text manual (SEO)
Tuya Inc. V2.0.0
1 Product Overview
TYZS4 is a low-power embedded Zigbee module that Hangzhou Tuya Inc. has developed.
It consists of a highly integrated wireless radio processor chip
(EFR32MG1B232F256GM48-C0) and several peripheral components, with an embedded
802.15.4 PHY/MAC Zigbee network protocol stack and robust library functions. TYZS4 is
embedded with a low-power 32-bit ARM Cortex-M4 core, 256 KB flash memory, and 32
KB random-access memory (RAM), and has extensive peripherals.
TYZS4 is a FreeRTOS platform that integrates all the function libraries of the Zigbee MAC
protocol. You can develop built-in Zigbee products as required.
1.1 Features
Embedded low-power 32-bit ARM Cortex-M4 processor, which provides digital signal
processor (DSP) instructions and floating-point units (FPUs) and also functions as an
application processor
Dominant frequency: 40 MHz
Working voltage: 1.8 V to 3.8 V
Peripherals: four GPIOs and one universal asynchronous receiver/transmitter (UART)
that supports flow control
Zigbee features
Tuya TYZS4 Zigbee Module
Datasheet
Version: 2.0.0 Date: 2019-07-26 No.:
Global Intelligent Platform
Tuya Inc. V2.0.0
802.15.4 MAC/PHY
Working channels 11 to 26 at 2.400 GHz to 2.483 GHz; 250 kbit/s air interface
rate
Embedded DC-DC circuit, maximizing the power efficiency
Maximum output power: +10 dBm; dynamic output power: > 35 dB
Runtime power consumption: 63 µA/MHz; current in sleep mode: 1.4 µA
Proactive network configuration for terminals
Onboard PCB antenna
The module also contains a PCB print antenna with 2.2 dBi gain.
Working temperature: –20°C to +85°C
AES-128/AES-256 hardware encryption
Wireless air interface packet capture
1.2 Applications
Intelligent building
Smart household and home appliances
Intelligent socket and light
Industrial wireless control
Health care and measurement
Asset tracing
Tuya Inc. V2.0.0
Change History
No. Date Change Description Version After Change
1 2019-08-06 Updated the document template. 2.0.0
Tuya Inc. V2.0.0
Contents
1 Product Overview.....................................................................................................................1
1.1 Features.........................................................................................................................1
1.2 Applications...................................................................................................................2
2 Module Interfaces.....................................................................................................................5
2.1 Dimensions and Footprint...........................................................................................5
2.2 Pin Definition.................................................................................................................5
2.3 Test Pin Definition........................................................................................................ 7
3 Electrical Parameters...........................