R4ultra kernel is released by official website: r4ultra.com. It is used for R4ultra and r4i ultra card. We offers the software download for free. There are 3 kinds of kernel, which can be used in R4ultra and r4i ultra card. The R4ultra kernel, the AKAIO kernel and the YSMenu kernel. R4town.com will issued the latest kernel version in the first time. (R4ultra card is out of production since 2012)
The latest official R4ultra kernel version is R4ultra V1.56, and the AKAIO kernel version is AKAIO V1.8.1.
It is easy to update the r4ultra kernel with 4 steps.
a. Download the latest R4ultra kernel V1.56 update patch.
b. Rezip the patch to you computer, you will get some files.
c. Copy all these files to the boot directory of the TF card.
d. R4ultra kernel updte finshed. Start to play games.
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