kevin-olbrich/mgos32-to-tasmota32

ESP32 Mongoose OS to Tasmota32 OTA Firmware Updates for Shelly

Updating Shelly Firmware from Mongoose OS to Tasmota

This guide is designed to help users of Shelly Plus and Pro ESP32 devices to update their devices from the Mongoose OS firmware to the Tasmota firmware over the air (OTA).

WARNING ⚠️

This application provides generally safe updates to devices over the air (OTA).

However, it is important to understand that overwriting the boot loader via an OTA update is a risky operation. If something unexpected fails during the update, it may render the device inoperable until serial flash.

If this happens, you need to know how to flash a new firmware over a wired connection in order to recover the device.

Prerequisites

1. Your Shelly device must have Mongoose OS firmware version 0.12.0 or higher installed.
2. You must have the mgos32-to-tasmota32 firmware http link for your device copied from the table below.

Process

Conversion

1. Connect your Shelly device to your local wifi or LAN with an internet connection.
2. Navigate to Settings > Device Settings > Firmware > Custom Firmware and paste the previously prepared http link.
3. Click the Upload Firmware button.
4. Wait for the device to finish updating.
5. Once the update is finished, connect to the device's new Tasmota wifi access point and add the device back to your network. If Shelly OS (Mongoose OS) boots back up after the OTA update, please update (using the OTA link from this repo) again.
6. Now you can configure your device. You can find templates for your device here.
7. If you want to use the Shelly factory calibration data follow the next steps. If not you can delete Shelly_data.be and Shelly_data.tapp from the file system which speeds up (re)boot times.

Optional: Use factory calibration data

1. Check that the files shelly.bin and aux.bin have been generated in the file system (FS). If not, type import Shelly_data into the Berry Console and hit Return twice. This will save the device-specific data in these two files.
2. Download shelly.bin and aux.bin in the file system to your PC.
3. Find calibration data in shelly.bin around 0x1000 with a HEX viewer for your OS.
4. Delete Shelly_data.be and Shelly_data.tapp from the file system

Optional: Convert to Tasmota Safeboot

1. MANDATORY Download ALL files in the file system to your PC.
2. Open the Partition Wizard -> Menu Entry. Choose Increase FS to max and click the corresponding button. This will increase the FS and erase anything that is currently present in it.
3. Upload the in Step 1. downloaded Partiton_wizard.tapp and Partitions_update.be to the Tasmota FS. Inside the Berry Console, type import Partitions_update.be and hit Return twice. Afterwards, restart the device.
4. Open the Partition Wizard and start the Safeboot Conversion process. If it is not possible to start due to something is marked in red, then an OTA Tasmota upgrade is needed. Perform the upgrade, and the Safeboot Conversion process can then be started.
5. The size of the Partition FS is now larger than the default size. If desired, the default 320kB size can be restored using the Partition Wizard.
6. Finally, configure device using templates here.

Supported Devices and OTA Links

Device	Link	State
PlusHT	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusHT.zip	⚠️untested
PlusPlugS	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusPlugS.zip	✅tested
PlusPlugIT	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusPlugIT.zip	⚠️untested
PlusPlugUS	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusPlugUS.zip	⚠️untested
PlusPlugUK	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusPlugUK.zip	⚠️untested
PlusI4	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusI4.zip	✅tested
PlusWallDimmer	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-PlusWallDimmer.zip	⚠️untested
Plus1PM	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Plus1PM.zip	✅tested
Plus1	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Plus1.zip	✅tested
Plus2PM	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Plus2PM.zip	✅tested
Pro1	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro1.zip	✅tested
Pro1PM	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro1PM.zip	⚠️untested
Pro2	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro2.zip	⚠️untested
Pro2PM	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro2PM.zip	✅tested
Pro3	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro3.zip	⚠️untested
Pro4PM	http://ota.tasmota.com/tasmota32/shelly/mgos32-to-tasmota32-Pro4PM.zip	✅tested

Pro4PM is build with LVGL support

If you confirmed an untested device working please open an issue!

What if my device is not listed?

If your Shelly device is not listed in the templates, please open an issue with a link to the Shelly Knowledge Base.

Or buy the device from my Amazon Wishlist and I will reverse engineer and confirm the device working.

Credits

I would like to thank Jason2866 for providing help with the custom Tasmota files.

License

This repository is released under the GNU General Public License v3.0. Refer to the LICENSE file for more information.

Copyright (C) 2023 Philipp '3D' ten Brink