Mini MXQ Box - RK3229 any V5.0 firmware available?

I have spent a couple of weeks searching the net, I cannot find an manufactures website (Telmu) is the brand on the box, It`s a shame as this is an half height box with a built in power button but it comes with v4.4.4 and it is very cheap to buy, I paid like £20 and i bought two of them.

Thanks for any help

John.

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