THR320D Reset & Teardown (FCC ID 2APN5THR320D)
Factory reset and internal photos for Sonoff (Itead) THR320D. Sonoff smart plug.
January 16, 2026
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1 min read
Before you buy the Sonoff (Itead) THR320D, check what's inside.
The Sonoff THR320D is a WiFi-enabled smart switch designed for integration into the Sonoff and eWeLink ecosystems. It allows for remote control and automation of electrical loads directly from the eWeLink app.
⚠️ NOTE: Disconnect Mains power before installation or servicing.
Quick Specs
- Manufacturer: Sonoff (Itead)
- Model: THR320D
- Protocol: WiFi
- Chipset: ESP/CK Chip
- Ecosystem: Sonoff
- App: eWeLink
🔧 Geek Corner (Flashing Info)
- Chipset: ESP32
- Flashable: ✅ Yes
- Info: Uses ESP32 chipset, can be flashed with custom firmware like Tasmota or ESPHome.
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 THR320D is a WiFi device from the Sonoff ecosystem.