I just wanted to say thanks to Chupito57 I was able to get by ebook reader working again! I bricked it upgrading the firmware from 1.05 to 1.10 but it was for an RK2729. Whoops...
Fortunately I was able to use the firmware provided by Chupito57 to get 1.05 back again
If anybody knows of a later version that works with this chipset I'd love to know