Reinstalling the same OS and Brave version on the same machine?
I have not tried but this scenario is quite common and other threads indicate that a backup of the profile folder may (or may not) work – though it’s unsupported.
Uphold also sets a minimum amount of 25 BATs if I’m not mistaken.
I think the safest course of action is to use those BATs on something.
Or wait to reach 25 and upload them if that’s an option – if the box is still usable, I don’t know.
I’d be concerned with the custodial aspect only for some significant amount.
8 BATs are currently credited little more than 5$.
I think transaction fees are going to affect BAT wallets more than the risk of uphold not holding up.
I’m more wary of giving them copy of my papers for the KYC.
Too bad Brave doesn’t sync rewards too – yet.
disclaimer: I’m just a user new to Brave and I may or may not be wrong.
That said, I think there should be a documented offline backup feature for cases like this.