Unable to connect the smartphone to the sync chain

It is impossible to connect the android device to the PC sync chain.

I just replaced phone and this is the first time I am experiencing this kind of problem. Does anyone know how to solve it? The system recognizes the seed phrases but does not sync.

I also add that there are devices in the sync chain that were last synced in 2020 that cannot be removed in any way.

thanks in advance

Having the same issue.
I am abandoning the Brave browser a second time. Last time it was because this browwser was causing my system to crash and this time because I am not able to sync my bookmarks between my different devices.
However, I am bullish on this broswer.
I am leaving this comment in hope that once the sync function is optimized, I will come back to it.

Can try to explain to me how i fixed this issues