How and When can I get a 4G LTE signal booster ?

    Hi Tmobile,

    At work (Westminster,CA), I have only 1 bar (4G LTE) at the windows (screen capture below).

    Just 30 feet away from the windows, the signal would drop to H (1 bar)  and sometimes no signal at all.

    I am a post-paid customer.

    I need a 4G LTE signal booster to improve 4G signal.




      All replies