Official firmware and installation steps are often shared on the Pumpkin forum .

Revive Your Ride: The Ultimate Guide to the ALPS-MP-O1.MP5 Update

Most of these units do not support standard over-the-air (OTA) updates from Google. Instead, you must use one of the following methods: 1. Local USB/SD Card Update This is the most common method for aftermarket car stereos.

After reboot:

often refuse to install or run properly due to hardware incompatibilities. Connectivity Glitches : Common complaints include OBD 2 Bluetooth connection failures and non-functional steering wheel controls , even after applying "compatibility checks". Display Issues

Have additional questions about the alps-mp-o1.mp5 update? Join the official Alps-MP community forum at community.alps-dev.com or open a ticket via the Alps Semiconductor support portal.