Prepare the Media: Copy the update.zip or the folder containing the .img files to the root directory of your USB drive. Do not put them in a folder.
Enter Factory Settings: This often requires a passcode (common codes for ZXDZ units include 8888, 1617, or 1234). zxdz 01 android update fix
Before attempting a deep system flash, try to clear the temporary update files that might be corrupted. Navigate to Settings > Apps > All Apps. Find System Update or Software Update. Select Storage and tap Clear Cache and Clear Data. Prepare the Media: Copy the update
This error usually occurs when the system clock is wrong or the downloaded file is incomplete. zxdz 01 android update fix