You can download the update manually with 3DNUS, and install it with sysUpdater. Maybe that will fix your problems.I did the whole restoring from hourglass9 and tried updating but it still gave me the same error
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also what do you mean by finding newer update files on the internet??
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also whenever I try to load into the eshop I just get a black screen. what can I do to fix that, and the whole problem of my 3ds freezing whenever I try to configure my internet settings??