I recently acquired a MiFi jetpack 4620L. I am located in a remote area with only 3G. Reception was poor so I purchased an antenna with the appropriate connecter for this device. When I connected there was not change in signal strength. I bought another antenna with the same problem. I exchanged the MiFi jetpack with another but no change in signal strength.
Do I need to set some kind of switch from internal antenna to external antenna on my MiFi device? Any advice on how to properly connect the antenna?