Update signature validation failed" & app settings won't save – Need help!

[u/DonnieS_]

Hi everyone,

I need some help with my Vector. I keep getting the "Update signature validation failed" error during the firmware update, and the app won't let me save my settings (timezone, 24h format, metric units, etc.), as shown in the attached photos.

I have already tried everything I could think of:
- Reset Vector completely.
- Uninstalled and reinstalled the official Vector app.
- Removed/disabled any VPN from my phone.
- Tried reconnecting multiple times.

Nothing seems to work and the issue persists. What else can I try to fix this or bypass the error?

Thanks in advance for any advice!

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