Not sure why you want to use different software when the functionality for OTA is built in Tasmota
Make sure you follow the process on the Releases pages.
In your case
6.7.1 http://ota.tasmota.com/tasmota/release-6.7.1/
7.2.0 http://ota.tasmota.com/tasmota/release-7.2.0/
8.5.1 http://ota.tasmota.com/tasmota/release-8.5.1/
9.1.0 http://ota.tasmota.com/tasmota/release-9.1.0/
Regards
Phil K
Sent from Mail for Windows
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You can’t (or you do so at your own risk). The flash memory locations are different between the versions. Shelly is runs on Mongoose Tasmota doesn’t
You only need to install the lite/basic versions. If you paste the link into the top box of the OTA it will do each stage without having to go through minimal.
For example 6.7.1 is
http://ota.tasmota.com/tasmota/release-6.7.1/sonoff-basic.bin
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