cannot switch to secondary landscape

[as_sass]

Hi!

I have the following problem:

In tablet mode, when I click the button to rotate the display, it will switch to secondary lndscape only for a second, and then returnt the following error message:

"Display cannot switch to secondary landscape with this configuration."

I had a similar problem but a different error message before I reset the machine to factory settings and uninstalling all the programs tat cam preinstalled. That message read something like this:

"Cannot switch to secondary landscape mode while WAN is enabled."

My machine (unfortunately) came with a Vrizon WAN thing preinstlled. I am not planning to activate the service, so I disabled the WAN. Still the display will not rotate (note it does rotate into one of the landscape modes, but no 180 degree is possible from there).

Does anyone know how to solve this?

All feedback and ideas are appreciated! Thanks!

as

BTW: Does anyone know if one can use the WAN feature with another provider, even though the Verizon thing was preinstalled?