tx2 enter into recovery mode automatically

We are designing the custom carrier board to use tx1 and tx2 module compatibly.
Now, it works normal with tx1 module but the board with tx2 module enters into recovery mode automatically when power up,
We don’t know the reason. We want to know the difference tx1 and tx2 about the condition that enters into recovery mode.

Hi hk566,

Please check the chapter of ‘Strapping Pins’ in TX2 OEM DG, and compare your settings of those pins that must keep as default and no additional PU or PD on those pins.