I want to upgrade the firmware on my R4

HI, im using moonshell firmware on my R4 because so far it is the only thing that i can find that words on it. I want to update it because i hear th moonshell is quite outdated. can anyone help me out?

Do you have an original R4?If so, check out the unofficial www.r4li.com or Ysmenu
http://forum.romulation.net/index.php?topic=27617.0

Im pretty sure that its a clone. It was only like 5 bux lol
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also its an sdhc bcuz i use an 8 gig card