Your R4 is fine. You just need to update your firmware to the latest. Grab the lastest r4 firmware here:
http://r4ds.cn/download/118/English-1.18.rar
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You need to update your firmware
Your R4 is fine. You just need to update your firmware to the latest. Grab the lastest r4 firmware here:
http://r4ds.cn/download/118/English-1.18.rar