shelly blu button1 gave an error during firmware installation

[costin]

while I tried to add Shelly's blu button1 to the application, which was recognized, it asked for a firmware update, and during the update it gave an error.
now the factory reset doesn't work either, it doesn't beep, it doesn't have a led signal, it appears as a device in the application when I want to add it again, but the application can't add it. he died?

[Olsche]

Try this please:

1. Remove the battery from the BLU-Button.

2. Remove the BLU-Button from the saved pairing setting in the phone, (if available.)

3. Restart the mobile phone

4. Launch the Shelly BLE Debug app

5. Press the button on the BLU-Button and insert the battery while holding the button.

6. Now press the button on the BLU-Button, the BLE Debug app should confirm this in the log display.

7. Click OTA in the BLE Debug app. Now the OTA counter should show 0-100% and the update should be successful.

[manuba]

Thank you Olsche! After hours struggling to try to reconnect the button, your advice finally worked.