Question about Pantech Matrix Pro C820 Cell Phone

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My phone turns on but none of the buttons light up or work when i press them.

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Hi, you are having a problem with the Glass I.C of the phone. The Glass I.C is in charge and makes the key button work with the button lights.
You have to take it to a phone tech to buy a new Glass I.C and replace it.

Take care

Posted on Jul 08, 2010

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Posted on Jan 02, 2017

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My intercom button flashed red to green. When I push a line button, I get a two-tone beep but no dial tone. I changed the internal 9 v battery. I unplugged the phone and waited, then plugged it back in....


Each telephone must be connected to line 1 and line 2 for
proper operation. The remaining lines 3 and 4 may — or may not —
be connected to each station as you desire. First plug in the battery, then the phone lines (1 & 2 are mandatory), and third the power cord. If your intercome LED is blinking red and green, then press: STORE IN, followed by "INTERCOM" followed by a free intercom# (i.e., any of the memory buttons 1 through 16 not already assigned to another telephone set). Then wait for the phone to go through its initiation sequence during which it searches each of the four possible lines. After that concludes, you should get dial tone on your active lines. :-) Marco

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1 Answer

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