M9 and Square/Paypal card readers

[Cubesmith]

Hello,

Has anyone tried to use the square or paypal credit card readers on their M9?

I've installed the square and the paypal credit card apps, but the tablet won't recognize the readers (hardware) when I plug them into the headphone jack.

Is the M9 headphone jack not compatible with the quad segmented jacks that are on the readers?

Thanks
Chris

[Cubesmith]

Has anybody tried one of these credit card readers on their pipo m9?

[pr0xZen]

The reader needs, among other things, both audio and mic connection in the jack - says so on the PayPal site. Do you have a wired headset with mic to test this with? I'm not 100% on wether the tablet actually has a mic connection in the jack, or just audio.