SNZB04P Reset & Teardown (FCC ID 2APN5SNZB04P)

Factory reset and internal photos for Sonoff (Itead) SNZB04P. Sonoff smart plug.

January 16, 2026 • 1 min read

Before you buy the Sonoff (Itead) SNZB04P, check what's inside.

The Sonoff SNZB04P is a battery-powered Zigbee contact sensor designed to detect the opening and closing of doors and windows. It integrates seamlessly with the eWeLink app and Sonoff ecosystem for smart home automation.

⚠️ NOTE: Ensure correct battery polarity when installing.

Quick Specs

Manufacturer: Sonoff (Itead)
Model: SNZB04P
Protocol: WiFi
Chipset: ESP/CK Chip
Ecosystem: Sonoff
App: eWeLink

🔧 Geek Corner (Flashing Info)

Chipset: Unknown
Flashable: ❌ No
Info: Zigbee devices with proprietary chipsets are generally not flashable with custom firmware like Tasmota or ESPHome.

User Manual

Scanned pages from the official user manual:

SNZB04P Manual

External Photos

Photos of the device exterior:

SNZB04P Exterior

Internal Photos

Teardown photos showing the PCB and components:

SNZB04P PCB

Verdict

The SNZB04P is a WiFi device from the Sonoff ecosystem.