After two weeks use all Apps away. Could no longer start. After the service posted. After a short time the same. From the Service received a scratched replacement device. After a few weeks, the tablet can not start. Again returned. Works then reasonably passable for a few weeks. Meanwhile broken again. Allegedly 0.00 MB of memory installed. Guarantee is in the meantime expired. Devices will be disposed of through the Elektronischrott.