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4PM Reset & Teardown (FCC ID 2BDC6-4PM)

Factory reset and internal photos for Shelly Group 4PM. Shelly smart plug.

January 15, 2026 1 min read

4PM internal photo

Before you buy the Shelly Group 4PM, check what's inside.

The Shelly Pro Dual Cover/Shutter PM is a DIN rail mountable smart controller designed for controlling dual cover or shutter devices. It offers remote control via Wi-Fi and LAN, making it suitable for automation in homes, offices, and industrial settings.

⚠️ NOTE: Disconnect Mains Power Before Installation or Maintenance.

Quick Specs

  • Manufacturer: Shelly Group
  • Model: 4PM
  • Protocol: WiFi
  • Chipset: ESP32
  • Ecosystem: Shelly
  • App: Shelly App

🔧 Geek Corner (Flashing Info)

  • Chipset: ESP32
  • Flashable: ✅ Yes
  • Info: Shelly devices, especially those with ESP32, are generally flashable with custom firmware like ESPHome or Tasmota after enabling DIY mode.

Reset Guide

Factory reset - reboot press the up or the down button to scroll through the currently dis - played menu.

User Manual

Scanned pages from the official user manual:

4PM Manual

4PM Manual

External Photos

Photos of the device exterior:

4PM Exterior

4PM Exterior

4PM Exterior

4PM Exterior

4PM Exterior

Internal Photos

Teardown photos showing the PCB and components:

4PM PCB

4PM PCB

4PM PCB

4PM PCB

4PM PCB

4PM PCB

Verdict

The 4PM is a WiFi device from the Shelly ecosystem.

📄 Click to view full text manual (SEO)
EN
USER AND SAFETY GUIDE
SHELL Y PRO DUAL COVER/SHUTTER PM
DIN RAIL MOUNTABLE DUAL COVER SMART 
CONTROLLER
Read before use
This document contains important technical and safety information 
about the device, its safe use and installation. 
⚠CAUTION! Before beginning the installation, please read carefully 
and entirely this guide and any other documents accompanying the 
device. Failure to follow the installation procedures could lead to mal-
function, danger to your health and life, violation of law or refusal of 
legal and/or commercial guarantee (if any). Allterco Robotics EOOD is 
not responsible for any loss or damage in case of incorrect installation 
or improper operation of this device due to failure of following the user 
and safety instructions in this guide.
Product Introduction 
Shelly® is a line of innovative microprocessor-managed devices, which 
allow remote control of electric circuits through a mobile phone, tablet, 
PC, or home automation system. Shelly® devices can work standalone 
in a local Wi-Fi network or they can also be operated through cloud 
home automation services. Shelly Cloud is a service that can be ac-
cessed using either an Android or iOS mobile application or with any 
internet browser at https:/ /control.shelly.cloud/. Shelly® devices can 
be accessed, controlled, and monitored remotely from any place where 
the user has internet connectivity, as long as the devices are connected 
to a Wi-Fi router and the Internet. Shelly® devices have an Embedded 
Web Interface accessible at http:/ /192.168.33.1 when connected di-
rectly to the device access point, or at the device IP address on the lo-
cal Wi-Fi network. The embedded Web Interface can be used to monitor 
and control the device, as well as adjust its settings.
Shelly® devices can communicate directly with other Wi-Fi devices 
through HTTP protocol. An API is provided by Allterco Robotics EOOD. 
For more information, please visit: 
https:/ /shelly-api-docs.shelly.cloud/#shelly-family-overview.
Shelly® devices are delivered with factory-installed firmware. If firm-
ware updates are necessary to keep the devices in conformity, includ-
ing security updates, Allterco Robotics EOOD will provide the updates 
free of charge through the device Embedded Web Interface or the 
Shelly mobile application, where the information about the current firm-
ware version is available. The choice to install or not the device firm-
ware updates is the user’s sole responsibility. Allterco Robotics EOOD 
shall not be liable for any lack of conformity of the device caused by 
failure of the user to install the provided updates in a timely manner.
Shelly® Pro Series
Shelly® Pro series is a line of devices suitable for homes, offices, retail 
stores, manufacturing facilities, and other buildings. Shelly® Pro de-
vices are DIN mountable inside the breaker box, and highly suitable for 
new building construction. All Shelly® Pro devices can be controlled 
and monitored through Wi-Fi and LAN...