Switched to T-mobile last month. Got low signal or no signal inside the house so received a LTE booster . Worked fine for 3 week with 3 to 4 bars in the house. 5 days back saw Error code E7 on booster unit and all bars flashing green on window unit. Called in tech support and after 20 minutes he said he does not see any maintenance and notes that it is disabled. Second LTE unit is shipped over night and after plugging it on i start to get full bars like before. After 60 minutes second pair started to show E7 on booster unit and flashing green on window. Called tech support couple of times. Each having different answers , One says may be second unit is locked out also and other says may be software update is happening and there is no timeline when it finish. Has any one seen anything like this before ?
Website shows tis error for E7:-
Understanding the issue
The Cel-Fi Signal Booster has been remotely disabled by T-Mobile for one of the following reasons:
- Network maintenance
- Service, capacity, or congestion problems
- Security reasons
Best answer by tmo_mike_c