I have done
a recommended factory reset but it did nt work.
Not exact matches
Another option that Asus representative Gary Key
recommends is to go for a
factory reset before trying the upgrade process.
The issue doesn't affect all Prime tablets — we got our upgrade right away — but if the Asus servers are giving you bad news and you see «unknown» in the About tablet > Status page, the company
recommends you do a full
Factory Data
Reset from Settings > Backup and
Reset, then leave the unit running for a full fifteen minutes with the screen on so the device can sync with the update servers.
Every time you want to flash a custom ROM, it is highly
recommended for you to wipe data and
factory reset devices.
If this problem occurs frequently, we
recommend resetting your eReader to its
factory settings.
The
Factory Reset process is also
recommended for Note 2 users who were running a custom ROM on their devices before starting the update.
Users who tried to contact BLU Products's customer service representative were only told to perform a
factory reset on their phone, a recovery method that is not usually
recommended as it removes all the data from a device.
If some things are acting a little goofy after you first boot into Windows 10 Mobile, we
recommend doing a quick
factory reset from the Settings menu to start fresh.