Ok. This is essentially the same advice as I gave on the first page of this thread but using an airgapped phone instead of an airgapped computer. An airgapped phone is not as secure as a computer, so do so at your own risk. To be as safe as possible, you should reset the phone to factory settings, turn off all connectivity and turn on flight mode, download and verify the Electrum .apk from https://electrum.org/#download before transferring it to the phone via a clean and formatted SD card or similar.

You will need to import all three seed phrases (not just two), and select BIP39 for the two hardware wallet seed phrases.

The wallet on your phone will show zero balance since it does not have internet connectivity. You will need to check if the actual addresses match those from your funded multi-sig wallet.