Hi I bought a ZT180 android tablet on ebay which said that it worked with a 3g usb modem . WhenI tried my usb stick, of course nothing happened, and the seller suggested I buy another from a list of modems and I bought a Huawei 1750E, the result is the same NO 3G connection. I have tried accessing some sites with a firmware upgrade which was suggested and this doesnt seem to work, (the link that is) . Can anyoune out there help?