Xtrons Firmware Update -

Rename the file to sdupdate.img (common for older units) or update_auto.zip . Also, try the other USB port.

Installing the incorrect software on these devices carries a high risk of permanently bricking your stereo. 🛠️ How to Safely Update Xtrons Firmware xtrons firmware update

The MCU handles the hardware inputs and outputs. If your steering wheel controls stopped working, or if the radio tuner is behaving erratically, an MCU update is often the fix. These updates are smaller and install much faster than full OS updates. Rename the file to sdupdate