i have a viewpad 10 s tablet and i upgrade his OS to ice cream version to resolve the touch screens problems ... everything its ok now ... after that i take a huawei e173 modem and try to connect my tablet via that to the internet ... but my tablet refused to see the modem when i go to APN screen. i already 1. turn my usb to host mode 2. connect via putty to usb modem and change cd-rom mode via AT commands 3. disable sim pin any helpful idea for that situation will be pleased !! thanks .. and sorry for my English !!