ZBM5120W Reset & Teardown (FCC ID 2APN5ZBM5120W)
Factory reset and internal photos for Sonoff (Itead) ZBM5120W. Sonoff smart plug.
January 15, 2026
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1 min read
Before you buy the Sonoff (Itead) ZBM5120W, check what's inside.
The Sonoff ZBM5120W is a Zigbee 3.0 gateway module designed for integration into smart home systems. It requires mains voltage to operate and allows for control of Zigbee devices via the eWeLink app or compatible hubs.
⚠️ NOTE: This device connects to mains voltage (110-240V). Always disconnect power at the breaker before installation or servicing.
Quick Specs
- Manufacturer: Sonoff (Itead)
- Model: ZBM5120W
- Protocol: WiFi
- Chipset: ESP/CK Chip
- Ecosystem: Sonoff
- App: eWeLink
🔧 Geek Corner (Flashing Info)
- Chipset: CB2S
- Flashable: ❌ No
- Info: The CB2S chipset is typically not flashable with custom firmware like Tasmota or ESPHome due to its integrated nature and proprietary bootloader.
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 ZBM5120W is a WiFi device from the Sonoff ecosystem.