After Fix: The TV still showed the 0891D error because the bootloader environment was already corrupted. However, with stable power, the USB force recovery (Method 1) succeeded on the first attempt.
Fix Applied: The technician replaced three 1000µF/10V capacitors on the power supply/main board interface. Voltage stabilized at 3.31V constant. mst2euvwp0891d fixed
Last updated: October 2025
Diagnosis: The customer attempted a factory reset via the pinhole button, which failed. A technician opened the unit and measured the 3.3V rail, which was unstable (dipping to 2.9V every 500ms). After Fix: The TV still showed the 0891D