beanhead

just see my last method,you must restart windows file service,if you havn't,you can't access the drives. After I tried the install from the Synology Assistant, I couldn't access anything. The Install failed saying that the version was wrong etc. If I had seen your post first I would have changed the VERSION file. All is working ok now though.

I managed to downgrade just before this was posted with a slightly different method. I tried an install using the Synology Assistant, that didn't work, rebooted and whereas before I could still connect to the drives I couldn't after that. Tried a reinstall of Xpenoboot, no joy. I used Synology Assistant again and selected Connect instead of Install, this bought up the Web Assistant. From there I did a manual install and it worked. THIS FORMATS YOUR SYSTEM PARTIION and reinstalls the DSM software, which is why I lost my config and apps etc. Fortunately I had a config backup, whilst this doesn't re-install you apps it does restore a fair bit of the config (users, shares, some settings etc). The data was all there, and after the config restore everything appears to be normal, had to reinstall the apps though. So, I'm not sure if the post procedure loses anything, but the way I did it loses your config and apps but not anything on my data partition.

Thanks hongkong3, much appreciated.

Care to share your wisdom? or are you just going to troll us?

Well don't I feel stupid, saw the upgrade and without thinking just hit go. Was on autopilot. If anyone manages to downgrade back to 5.1 update 5 then please please post how here. Thanks.