Firmware Update Failed
Worcester Bosch
Incomplete or corrupted firmware installation
Thermostat or app reports 'Firmware Update Failed'; device may reboot repeatedly or lose some functions.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Power loss during update, Wi‑Fi drop during download, Insufficient internal memory, Firmware image corruption
How to Fix / Troubleshooting
Safety first: Do not interrupt power during any subsequent update attempts.
- Stable power and Wi‑Fi: Ensure the thermostat has a stable power source (fresh batteries or mains) and strong Wi‑Fi signal.
- Retry update: From the app or thermostat menu, manually trigger the firmware update again and allow it to complete without interruption.
- Factory reset (if recommended): Some models may require a factory reset before re‑applying firmware. Back up settings first.
- If device is stuck in boot loop: Do not attempt to open the device. Contact Worcester Bosch support for recovery or replacement options.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Smart Thermostat Main PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements