If the head unit is bricked or won't boot into Android:
"Throw the awful cvd1810 away and purchase either a genuine android auto unit such as a pioneer, alpine, Sony or if still wanting a chinese knockoff full android, a FYT based Duduos unit." Cvd1810-wj Firmware
Leave the device entirely alone for 5 to 10 minutes. Powering off the device during this phase will corrupt the flash memory. Phase 3: Post-Update Verification If the head unit is bricked or won't