Zte Zxv10 B820ca15 Fix !!exclusive!!

Go to > Device Preferences > About > Factory Reset . Physical Button (Recovery)

Because the B820CA15 is frequently a "provider-locked" device, certain "fixes"—such as flashing stock Android TV firmware or unlocking the bootloader—can be difficult without specific files from your ISP. If the device remains stuck on a logo screen or fails to update, it is highly recommended to contact your service provider’s technical support, as they may need to push a remote update or replace the hardware. zte zxv10 b820ca15 fix

Before attempting more invasive fixes, a simple power cycle can resolve many minor software hangs. Go to > Device Preferences > About > Factory Reset