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Connecting Huawei EC121 CDMA2000 USB modem

  1. Before plugging in the modem, please download the driver and extract it the hard drive. The "Found New Hardware Wizard" will appear when you plug in the modem. Select "No" to not to use Windows Update.
  2. "Data Interface" is shown as the new hardware. Select "Install from a list or specific location (Advanced)" and click Next.
  3. Browse for the location of the driver where it has been extracted to. Since we are using XP, the path is under the WinXP sub-folder.
  4. After a while, the "HUAWEI Mobile Connect - 3G Modem" is successfully installed.

  5. Repeat the above steps for "HUAWEI Mobile Connect - 3G Application Interface".
  6. There are 3 COM ports associated with the modem, as shown in the Device Manager. Choose the one called "HUAWEI Mobile Connect - 3G PC UI Interface". This is IMPORTANT because other COM ports do not work.
  7. Now the Huawei EC121 modem is ready to use.
  8. The COM port is held and no other software can use the modem while "Mobile Partner" is running. Please close it before running SMSCaster.

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Disclaimer: SMSCaster E-Marketer is bulk SMS sending software used to send SMS from PC to a very focused group of customers. It should not be used for SMS spam, SMS spamming, mobile spam, cell spam, unsolicited SMS or bulk SMS broadcasting for spam.