can not get SSD1306 display with esp32 to work

[catdogmaus]

I did set my ota url to http://ota.tasmota.com/tasmota32/release/tasmota32-display.bin
I did set pins 21 and 22 in template parameters to SDA and SCL

Some tutorials suggest that it should immediately work (with some data)
Some suggest commands i2cscan , DisplayAddress 0x3c and so on
i2cscan results {"I2CScan":"Device(s) found on bus1 at 0x3c"}
However DisplayModel 2 gives {"Command":"Unknown"}
also DisplayMode 2 gives {"Command":"Unknown"}
Display remains dead

[sfromis]

You did not mention two very important points. Since Tasmota version 14, you need to configure for "Universal Display", which is indicated by configuring some unused gpio as "Option A 3", and using a display descriptor display.ini file to match your display.
See https://tasmota.github.io/docs/Universal-Display-Driver/

The old display type-specific drivers in the Tasmota core are no longer used, and that's why it does not recognize the display or commands until you have configured for uDisplay, as mentioned.

[catdogmaus]

have 00:00:00.087 I2C: Bus1 using GPIO22(SCL) and GPIO21(SDA)
that's all

[sfromis]

Well, did you make sure to have "Option A 3" configured? What's your template?

[catdogmaus]

[catdogmaus]

I actually figured one of the problems out, but not fully.
All my IOT devices are denied from internet and I was not aware that I failed to give tasmota permit to access internet. It seems that when updating, but denied internet, update fails silently. (there should be some improvements possible about that behavior)
After I managed finally to update my device and screen now actually works some random toggle button appeared witch totally screws up all my rules and also setup in HA. I have no idea why it is there. I deleted all rules, Removed all relays, now I have only Option A3, DS18x20, I2D SDA and I2D SCL left. Toggle (power) button is still there. As far as I understand it switches on/off but has no effect that I could find.