RFR2 Reset & Teardown (FCC ID 2APN5RFR2)

Before you buy the Sonoff (Itead) RFR2, check what's inside.

This is a dual-mode Sonoff smart switch that can be controlled via WiFi (2.4GHz) using the eWeLink app or via local RF 433MHz signals. It is designed for direct mains power connection and supports a maximum load of 10A.

⚠️ NOTE: Ensure mains power is disconnected before installation and wiring. Verify correct polarity for all connections.

Quick Specs

Manufacturer: Sonoff (Itead)
Model: RFR2
Protocol: WiFi
Chipset: ESP/CK Chip
Ecosystem: Sonoff
App: eWeLink

🔧 Geek Corner (Flashing Info)

Chipset: ESP8266
Flashable: ✅ Yes
Info: Sonoff devices with ESP8266 chips are generally flashable with custom firmware like Tasmota or ESPHome.

User Manual

Scanned pages from the official user manual:

RFR2 Manual

External Photos

Photos of the device exterior:

RFR2 Exterior

Internal Photos

Teardown photos showing the PCB and components:

RFR2 PCB

Verdict

The RFR2 is a WiFi device from the Sonoff ecosystem.

📄 Click to view full text manual (SEO)

Wi-Fi Smart Switch
User manual V1.0
· English ----- 5 - 8
· Español --- 14-18
· Français -----19-23
· Deutsch ---- - - 9-13
· Italiano----24-28
· Русский язык-- 29-33
BASICR2 does not support the remote controller 
with 433.92MHz.
100-240VAC 50/60Hz 10A
100-240VAC 50/60Hz Max. Load: 10A
IEEE 802.11 b/g/n 2.4GHz
433.92MHz
PC V0
88x39x24mm
5
Model
Input
Output
Operating 
systems
Wi-Fi
RF
Material
Dimension
（Android 4.1 & iOS 9.0）or higher
Specifications
Product Introduction
Wi-Fi LED indicator(Blue)
On/off LED indicator(Red)
Pairing button/Manual switch
EnglishSONOFF TECHNOLOGIES CO., LTD.
BASICR2/RFR2
Wire Fastener Cover
Features
Turn on/oﬀ the light or fan from anywhere, 
schedule power on/oﬀ and share APP with your 
family to control.
Remote Control Single/Countdown 
Timing
Voice Control
Share Control Sync Status No Hub Required 
Smart Scenes LAN Control 433MHz 
Remote Control
6
EnglishSONOFF TECHNOLOGIES CO., LTD.
Please reset the switch to factory defaults if you 
want to use other Wi-Fi networks, then reconnect 
the network.
7
Factory Reset
Long press the pairing button for about 5s until 
the Wi-Fi LED indicator changes in a cycle of two 
short and one long ﬂash and release, then the 
reset is successful. The device enters quick pairing 
mode (Touch).
RF Remote Controller Pairing
The RFR2 supports the remote controller with 
433.92MHz frequency brand to turn on/oﬀ, and 
each channel can learn it independently, which is 
local short-range wireless control not Wi-Fi control. 
Pairing Method:
Long press the conﬁguration button for 3s until the 
Wi-Fi LED indicator ﬂashesred once, then short 
press the remote control button you want to pair for 
successful learning. 
Clearing Method:
Long press the conﬁguration button for 5s until the 
Wi-Fi LED indicator ﬂashesred twice, then short 
press the learned button corresponding to the 
remote controller to clear code values of all learned 
buttons.
EnglishSONOFF TECHNOLOGIES CO., LTD.
Common Problems
Q: Why my device stays “Oﬄine”?
A: The newly added device needs 1 – 2mins to 
 connect Wi-Fi and network. If it stays oﬄine 
 for a long time, please judge these problems 
 by the blue Wi-Fi indicator status:
1. The blue Wi-Fi indicator quickly ﬂashes once 
 per second, which means that the switch failed 
 to connect your Wi-Fi:
① Maybe you have entered a wrong Wi-Fi 
 password.
② Maybe there's too much distance between 
 the switch your router or the environment 
 causes interference, consider getting close 
 to the router. If failed, please add it again.
 ③ The 5G Wi-Fi network is not supported and 
 only supports the 2.4GHz wireless network.
④ Maybe the MAC address ﬁltering is open. 
 Please turn it oﬀ.
2.Blue indicator quickly ﬂashes twice per second, 
 which means your device has connected to 
 Wi-Fi but failed to connect to the server.
8
EnglishSONOFF TECHNOLOGIES CO., LTD.
If none of the above methods solved the problem, 
you can open the mobile datanetwork on your 
phone to create a Wi-Fi hotspot,...