While trying to upgrade my Synology DS213J NAS from 4.3-3827 to 5.1-5004, I ran into the following error while using the automated update feature.
How do I solve it?
It turns out that I needed to upgrade to DSM 5.0 first before 5.1. I manually downloaded the DSM 5.0-4528 update from http://ukdl.synology.com/download/DSM/. Make you sure you select the correct *.PAT file applicable to your Synology unit.
I then opened the DSM Update manager screen and chose the “Manual DSM Update” option and selected the *.PAT file I downloaded.
Wait for about 5 – 10 minutes and great success!!! You’ve upgraded to DSM 5.0. You’ll then need to upgrade to DSM 5.1 using the standard auto update mechanism.
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