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Hi,

I have a TRB140 that I unwrapped from the box and connected to power, and all it does is light up all the LEDs but one (it happens the moment it gets power).  Is there a document describing the various possible scenarios for these kind of error codes?

As you can see, the second signal strengt indicator light is off, rest is on.

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Hello,

Please follow this link to learn about TRB140 LED's: https://wiki.teltonika-networks.com/view/TRB140_LEDs

It may be that your second signal LED is simply not working. Can you confirm that everything else is working (mobile connection, etc.)

Regards.

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No, the modem is dead. Nothing is working.

The moment I connect the modem to power, these LEDs light up like this and never change.
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In this case, please contact your reseller or teltonika sales manager directly to send this device to RMA.

Regards.