Does the aluminum foil on top of the battery, sticked to the wireless card, come with the jdx device? It looks like a home made wifi enhancer Ainol used after a guy made it on a tablet model that had short range lol (alas, I also have like that, home made, on my tablet ^^ )
Willgoo, any news about the 602b model? I've seen it on aliexpress. Price is confusing though, almost identical to the 5110b.