- Oct 29, 2014
- 17
- 0
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I have a Lumia 620 running Windows Phone 8.1 (Lumia Denim). I am trying to update my phone to the latest version of the Windows 10 Mobile Technical Preview, but I am having no luck. I've tried both the fast and slow rings, but after it updates, it tells me that there was a problem updating and gives me the error code 80070020. Anyone have any advice? I had some issues with making room in my phone's storage, but I was able to clear enough space by clearing caches and temporarily files to install the update. I really don't know what to do next...