As with most 3G Modems AT+COPS only accepts 3 Parameters and though it will not work. But those work: GPRSONLY: AT^SYSCFG=13,1,3FFFFFFF,2,4 3GONLY: AT^SYSCFG=14,2,3FFFFFFF,2,4 GPRSPREF : AT^SYSCFG=2,1,3FFFFFFF,2,4 3GPREF: AT^SYSCFG=2,2,3FFFFFFF,2,4 This information was taken out of Vodafone Mobile Connect Software (Linux Version) Python Code. viaHuawei Technical Forum: e220 at command for umts-only mode ….