The presentation and handling of the tablets 2-830 L is very well done, no doubt. Holding, putting down, laying or slopes and the battery make the grade 5 so very good. The resolution of the screen and the computer Android 4.4 very good, also the data transfer from phone to tablet work excellently. Ea are two card slots available one of which is provided for the SIM card and the other for a memory card. So now the point where I do not understand is when I insert the SIM card and turn on the tablet detects the SIM card and asks me for the Cod of the simcard, so does the contacts and put on it, but I can not to communicate and not received. In describing all this simply is (unfortunately in English only), but not for me as that. On my screen I have no phone set and the numbers to dial are missing auch.Das Tablet Yoga 2-830 L has its LTE and thus suitable. Therefore, I am not satisfied with the Tablet, because here falsehoods are erzält and the customer is something shown us what is untrue