User's Manual
Step 4
Place the Coverage Unit:
Move to a location in your home where you need to
improve coverage. Plug the Coverage Unit into an easily
accessible outlet. After several minutes, the numeric display
will stop cycling.
If your device is set up properly, the green icons will appear on the display as
seen above. It is possible to place the Coverage Unit too close or too far from
the Window Unit. If this happens, a red icons will illuminate indicating that you
need to move the Coverage Unit either closer or further to the Window Unit.
T-Mobile 4G LTE Signal Booster Troubleshooting
TOO CLOSE
A zero on the numeric display
indicates that the Coverage
Unit needs to be moved farther
away from the Window Unit.
GOOD
Two green icons indicate
that the Coverage Unit
is functioning normally.
TOO FAR
Four red icons & a scroll-
ing display indicate that
the Coverage Unit needs
to be moved closer to the
Window Unit.
Step 3
Optimize the Window Unit Placement:
The bars on the front of the device indicate the strength of the 3G, 4G or 4G LTE
signal in the area. Moving the Window Unit to a dierent location in your home
may increase the signal, and can make a signicant dierence in the quality of
your service.
Step 5
Optimize The Coverage Unit
Placement:
Place the Coverage Unit as far away as
possible from the Window Unit. The
number on the front of the Coverage
Unit display indicates the quality of
the placement. For the best service
experience, move the Coverage Unit
around your home until an 8 or 9 displays.
WINDOW UNIT
COVERAGE UNIT
Indicator Issue Try This
Indicator Issue Try This
No lights on the Window Unit
display.
Power indicator is red
Power indicator is green but no bars
on the Window Unit display
Power indicator is Flashing
Green
LTE lamp is lit or not lit (what does
this mean?)
No lights on the Coverage
Unit display.
Coverage Unit Power Indicator is
red.
Seven segment
display cycling for
more than a minute.
Zero displayed
The Coverage Unit and
Window Unit icons are red
with two arrows.
The device is not receiving power.
Window Unit hardware issue.
Window Unit does not have a 3G, 4G or
4G LTE signal.
Window Unit Is setting up communica-
tions path with Coverage Unit.
The LTE indicator just means that LTE is
available and is also being boosted.
The device is not powered.
System Error.
The Coverage Unit still trying to wire-
lessly connect to the Window Unit.
The Coverage Unit is “Too Close” to the
Window Unit.
The Coverage Unit is “Too Far Away”
from the Window Unit.
1. Is the unit plugged in?
2. Is there power at the outlet?
3. Try exchanging the power supplies with the Coverage Unit to determine if the
power supply is defective.
Please check the Coverage Unit for an alternating error number to determine the
proper solution form the list of Error Messages below.
Try moving the Window Unit to another room or area where you have more cover-
age. (Use your cell phone to nd the best 3G, 4G or 4G LTE coverage).
Wait a few moments, once a path has been set up, the light will stop ashing.
If you have bars of signal on your Window Unit but the LTE lamp is not lit, you still
have boosted high speed 3G/4G service.
1. Is the unit plugged in?
2. Is there power at the outlet?
3. Try exchanging the power supplies with the Window Unit to determine if the
power supply is defective.
Please check the seven segment display for an alternating Error Messages to deter-
mine the proper solution from the list of Error Messages below.
1. Wait for the display to stop cycling. This could take several minutes.
2. Make sure that all other electronic devices (Wi-Fi routers, home phones, computers,
etc) are at least 2-3 feet from the Coverage & Window Units.
Move the Coverage Unit further away from the Window Unit. The separation
distance may be over 50 feet for a residence, and much further for open commercial
spaces. Try and get an 8 or 9 on the display.
Move the Coverage Unit closer to the Window Unit.
COVERAGE UNIT
WINDOW UNIT
E1
E3
E4
E8
No 3G, 4G or 4G LTE signal at the
Window Unit.
Coverage Unit is overheating.
Window Unit is overheating.
Input signal at Window Unit too strong.
Try moving the Window Unit to another room or area where you have coverage.
(Use your cell phone to nd the best 3G, 4G or 4G LTE coverage).
Make sure that the vents on the unit are not blocked. Move the unit to a cooler area.
The system will start working normally when it cools down.
The signal from the wireless network is too strong to use a booster.
ERROR
MESSAGES
If you see any other error messages, please contact Customer Care at 611 from your mobile phone.
For additional information about T-Mobile 4G LTE Signal Booster Installation go to: www.T-Mobile.com/SignalBoosterhelp
WINDOW UNIT
COVERAGE UNIT
COVERAGE UNIT
DISPLAY
For the best service, move the Coverage
Unit until an 8 or 9 displays.
5
Low Coverage Unit number or
Window Unit input signal.
Window Unit and Coverage Unit are
too close together or Window Unit
signal level is low.
Move the Coverage Unit away from the Window Unit to get a higher coverage
number. This can mean putting the Coverage Unit on the opposite end of your
home. Higher numbers indicate better coverage. You can also move the Window
Unit to an area with a stronger signal.
PERFORMANCE
The Coverage Unit
has a boosted signal but
only in a small area of my
home.
Indicator Issue Try This
Signal
Indicator
LTE
Indicator
Power & Status Indicator
Alternating E and
Numeric Error Code
Power & Status Indicator
Seven Segment Display
Coverage Unit
Indicator
Window Unit
Indicator
Indicator Issue Try This
5
43
BETTER
2-3 bars
BEST
4-5 bars
GOOD
1 bar
Signal Strength
qsg-TMOBILE_RS3DB-English_14-0329/ TM1849
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