Here is the stock firmware for B13 dual core mini pc.
Download link: Here
(password:geekbuying.com)
the upgrade insturction is the same as the following:
https://blog.geekbuying.com/index.php/2013/02/20/rikomagic-mk802-iiis-firmware-upgrade-guide/
Please notice, B13 just support RKBATCH TOOL Upgrade. don’t support micro sd card upgrade directly.
You just need to follow the instruction,and find the correct position of reset button.
Good Luck.
Geekbuying Team
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my b13 build have b13s on it help please(i cant flash this b13 firmware WiFi,Bluetooth Not Working)
Any Custom Firmware For This?
BIG THANKS!!!! My dead rock B13 live again!!!
Have a nice day!!!