This morning's ui8 update has left me without a phone as now the Sim is no longer detected.
after trying all the online suggestions (including multiple mobile setting resets) I tried a factory reset. However, this also downloaded ui8 , so that didn't work either.
I've just noticed the GPS reception is also non functioning.
I have raised an error report and received an acknowledgement.
I seen a few other's with the same problem.
Bill