Official updates for these units are often shared via community forums like 4PDA .
: Enable your phone's hotspot or connect to a home network. zxdz 01 android update fix
Do not just hold the power button. Press and hold for 15 to 20 seconds. The phone will vibrate and hard reset the kernel. For many ZXDZ 01 users, this alone is the ZXDZ 01 Android update fix they needed. Official updates for these units are often shared
The ZXDZ 01 Android update failure was a result of AVB verification errors, not a hardware defect. The fix requires entering Fastboot mode and flashing a valid vbmeta and boot image. For future-proofing, it is recommended that users of these industrial Android modules disable automatic OTA updates until a verified stable build is released by the OEM. Press and hold for 15 to 20 seconds
Note: A manual flash usually performs a "Factory Reset," so back up your data if possible before attempting this.