Ok here is a test SU'd cramfs version for the nextbook 7 premium with serial # starting yf0911. Download the image file. Rename to update.img Put the update.img file onto your SD card or internal ram for your nextbook. If your next book is on, you will be prompted to run the new flash. THIS IS ONLY A TEST. I DO NOT HAVE THAT SN# Nextbook,!!! I want to be very clear, if you attempt to flash this on any other nextbook, you may be bricked untill you flash the orignal update. Please test and let me know what you find. Image Link below TEST ROM IMAGE FOR SN#YF0911 Cheers!