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So we have to check the frequency

Attention: IF frequencydoesn’t match, the signal boostercan’t works.

Turn on the network (2G/3G/4G) you want to amplify and go to outdoors of your house:
A:If you useSamsung phone.
Holding the phone to the outside. Dial：
*#0011#→ServiceMode→click into :SIM1 INFORMATION → send me a screenshot
B.If you useiPhone.
Holding the phone to the outside.Dial:
*3001#12345#*→ click into :Serving Cell info → send me a screenshot

PRODUCT DETAILS

INSTALLATION

1: Find a position where could receive great signal,mostly a higher position, like at rooftop. Install outdoor antenna at it and make it toward the base station. Note: the outdoor antenna shall receive good signal, otherwise the repeater could not work. 2: Connect outdoor antenna to booster at "BTS" connector with the cable. 3: Connect indoor antenna to booster at "Mobile" connector. And it would be better to install it at a height of 2 meters. 4: Plug the power adaptor,power light will be lighting. Please note that, when you find signal twinkling and have no full signal display that means have no signal input and you need to check your outdoor antenna position.