Locate the physical button (usually a small pinhole on the bottom or back of the box).
First, see what packages are installed: adb shell pm list packages zte zxv10 b820ca15 fix
If LOS is flashing red , do not touch the electronics. The issue is the fiber optic cable or the central office. If PWR is off , proceed to Part 2. Locate the physical button (usually a small pinhole
the power adapter back in and allow the system to boot up normally. ⚠️ Method 2: The Physical Hard Reset (Recovery Mode) " standard buffering
Network issues on the B820CA15 usually present as "No Internet Connection," standard buffering, or the inability to obtain an IP address. Clear Network Cache and DHCP Fix Navigate to > Network & Internet .