If you encounter error codes or flashing status lights on your T-Mobile signal booster, the issue is likely indicated by one of the following signals or error codes:Įrror code 8 (internal coverage unit) – similar to error code 7, you will need to reposition the internal unit. Why Is T-Mobile Signal Booster Not Working?

If you’re wondering why your T-Mobile personal cellspot signal booster not working, let’s take a closer look at some common problems and the troubleshooting steps to fix them. The good news is that troubleshooting a T-Mobile signal booster is relatively straightforward. In some cases, you may need to relocate the internal unit farther away from the window unit to avoid interference. To fix a nonfunctioning T-Mobile signal booster, chances are likely you will need to reposition either the window unit or internal unit for a stronger signal. Even signal boosters have their weaknesses. However, there is no such thing as a 100% perfect cell phone provider with flawless five-bar coverage in every region of the world. T-Mobile is an industry giant in the cell phone provider industry, and it has one of the most expansive coverage areas among competitors. Even T-Mobile users find themselves asking from time to time, “Why is my T-Mobile signal booster not working?”

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