I have taken over my late fathers tablet. It's a DMTECH 7535B with Android. Don't know which version. . I don't have the pin code so I can't open it up so I thought I should do a factory reset. I manage to go in to the Android System Recovery v4.2.41. The option at the top is Reboot and that is highlighted. Further down there is the option Wipe Data/Factory reset. But I can't reach it. This tablet has no volume buttons so I can't go down with the marker and highlight it. What shall I do? I have no Users Guide and have not found any on the net. There should be guidelines how to reset the tablet. This brand does not exist anaymore so I can't find any support either. Help me!