Improve LTE reception?

Hello have a LTE Cube of Telecom (A1) namely the Huawei E5180 … This has no antenna connection and I have the worst LTE reception… 1 bar of 5 reception. Despite repeated speeches with the dear A1 employees want the irgentwie not help… My question now: Has anyone tips irgentwie rauszuholen more reception? Ne antenna itself building or something? I'm grateful for every tip!

He has no connection for an antenna. Search for a better location (window). If you know or can determine in which direction the transmitter is where the cube logs in ev. Large parabolic reflector try to paste thick A4 or A3 sheet with aluminum foil, bend accordingly and put the cube in there.

There's no device with a better external antenna connection. All phones have worse transmission and reception for most LTE frequencies. Find a "strong" device (Connect Magazine, http://www.handywerte.de).