Having changed the device name on the Tether app, the remaining information is no longer displayed.

I.e. Only the name is displayed and the Model, Firmware and Hardware field are blank. How can I now restore this information to the Tether app?

I have tried renaming the device back to the original name but that didn't make a difference.

UPDATE

I thought I solved this by rebooting the device. The details returned when I reconnected but disappeared again when I next looked.

Now, they're back again - will they remain?