As far as I can tell, there is no firmware update available for the Ematic AT103B. If you do have a firmware file for this converter box, plug in the USB drive when the converter box is on. Then press Menu and go to the System Setup (the icon has a gear and is labeled Settings) menu option with the Left/Right arrows. Press the Down arrow and continue down to the Software Update line. Press OK. Select the correct file. (If this file isn't shown, try inserting the USB drive after reaching this line.) Press the right arrow to start the upgrade process. Do not let the unit power down during the upgrade.
See page 14 (page 15 of the PDF) and the preceding page to see how to navigate the System Setup menu. The manual is available here: https://ematic.zendesk.com/hc/en-us/articles/220756147-AT103B . The direct link to the manual is currently: https://ematic.zendesk.com/hc/en-us/article_attachments/208176947/AT103B_manual.pdf .
I hope this helps.
Cindy Wells
I do not think that will work, but try it.
SOURCE: Is the Ematic AT103B Converter Box compatible with Suddenlink cable/digital service?
No, the Ematic AT103B is an over-the-air digital ATSC tuner and will also can convert the digital signal to analog NTSC for older TV tuners. It will not work with any cable service and is for "cord-cutters". The AT103B requires an antenna to receive your local OTA channels. Depending on where you live, you may get some channels with an indoor antenna. You will get better reception with an outdoor antenna. See http://www.tvfool.com or http://www.antennaweb.org for details on the channels you can receive with an antenna pointed in a particular direction.
The Ematic set top box does provide an HD signal output and a DVR (time-shift function) so it is more advanced than the first generation OTA converter boxes. The original (available with the government coupon) converter boxes only gave an SD output.
I hope this helps.
Cindy Wells
(antennaweb.org gives a very conservative list of available channels but assumes an external antenna. tvfool.com lists the channels that are likely to be received with a variety of antenna strengths. An antenna signal amplifier can improve the reception. (Digital stations will not be seen if the tuner can't lock onto the signal.) However, when the amplifier fails, you may find some channels will not be received at all.)
Testimonial: "Thanks for your info. I ordered this converter and never saw the antenna requirements until I received it and was reading the manual! Thanks for help."
This is like one big advertisement thanks for wasting 30 minutes of my time everytime i try and program my remote.
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