Also with me as many others, the device broke down approximately 5 days after warranty. Apparently no hardware failure but by the software. The unit can be turned neither store nor. When about 30 sec. on the Power button belibt, I get the message: Illegal Battery and the power goes out again immediately. The device has been in the 2 years maximum of 20 times used to 0.5 hrs each !!!! Too Bad. Had more of Lenovo Expected
