USB Drivers of FX30 and MOBITEK S80 Have Conflict — Bad_pool_caller

Problem: the USB Drivers for both FX30 and MOBITEK S80 cannot be installed in the same machine. Otherwise the below blue screen error will appear when trying to connect MOBITEK S80 3G Modem to the PC/machine.


Solutions: there are 3 solutions to choose:

  1. reboot Windows into “last known good configuration” (source:;
  2. run system restore to restore Windows to the a date before FX30 USB driver was installed; or
  3. uninstall FX30 USB driver.