How I figure how just to resume a broken link in any browser, Mostly in UC in cases where you are downloading a large file or and app and the download gets broken halfway due to network or Routers.
Firstly you have to return to the website where you got the download and re-click the link
NOTE: works mostly in UC or Firefox
Then just when the browser asks for a storage path for the download, You look for the (1) after the name of the download and erase it
Then finally you click the download (this should resume the previous broken download)