What if I uninstalled brave from my pc and mobile. And also lost the sync code, after that is there any way to restore that sync. Like on chrome if I log in to my account it syncs with other devices, is there any feature available like that???
No, if you lose the code it’s gone.
You could try re-installing Brave temporarily, as I’m not sure where in your profile it retains the Sync connection info. Worth a shot. But if re-installing doesn’t restore your profile and your Sync configuration then I think you are out of luck.