as i know ,all real koala has tiny design flaw
And most of them use black pcb
But hope urs is real
通过我的 BBF100-4 上的 Tapatalk发言
at the gb, pcb could be black. but there is a lot of upgrade version of a.87 pcb.
also color is different such as white, green, yellow
thats the point,i know a87 has so many version
but for original gb,black pcb will be reasonable,
I may be wrong, but i just remind buyer, pay
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通过我的 BBF100-4 上的 Tapatalk发言