ponas-niekas

Disabling the pin did not help. I also tried resetting the settings and factory reset. And installed Chameleon Ultra GUI on another iPhone 13 with the same result..

USB works fine, yes. And Chameleon Ultra GUI and MTools apps do have bluetooth (if that's what you are asking) permissions on iPhone.

No, it does not, that's the issue..

I "re-flashed" firmware to the latest version today.. Anything else to try ?

Checked that too, but still no sign of BLE, faulty hw I guess. I contacted the seller.