GoodReaderUSB is a small computer utility to transfer files and entire folders to GoodReader app on your mobile device over a USB cable. If you're a user of an older version of GoodReaderUSB, you will need to update GoodReaderUSB to the latest version. Find the downloading link and the user manual below. The latest v.2.5.0 update resolves the issue where devices with iOS 8.3 or later couldn't be a
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