Question about Logitech Harmony 670 LCD Remote Control

1 Answer

My display screen is blank

My remote works fine,but has a blank screen

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  • Ltowntrev Mar 14, 2009

    Fresh out of the box my Logitrash 670 had a blank screen. Returned it to the store and exhanged it for another 670. That one has lasted me 1 year and 15 days. 15 freakin' days out of warranty. 2 remotes... 2 junk.



    I guess it's time to pull out my old Sony universal that is more than 8 years old and still works like a charm.



    Thanks for nothin' Logitrash.

  • Anonymous Apr 12, 2009

    Harmony 670 LCD screen is blank, otherwise functional.

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I had this same problem, so I contacted logitech... This is there response:
Thank you for your recent inquiry about your Harmony Remote

We are sorry to hear that you have experienced some difficulties with your Harmony remote. Please try taking out the battery of the remote and wait 10 seconds, then put the battery back in the Harmony Remote and check if you still have problems with the LCD of the Harmony. It is possible a firmware upgrade in Safe Mode will resolve the issue. Please update the firmware on the remote and then re-update the configuration to the remote. To do so see below:

Try placing the remote into "Safe Mode". If you are not able to do this please continue to the next section.
1. Remove the battery from the remote.
2. Hold down the "Off" button on the remote and re-insert the battery.
3. Continue holding the "Off" button until the remote says "Safe Mode" 
4. Plug the remote into the USB cable.

Update the firmware on the remote.
1. Login to your account through the Harmony remote software.
2. Click 'Downloads' and then select 'Firmware'
3. Follow the prompts to upgrade the firmware on the remote.
* Please note continue the Firmware upgrade process even if the software says you already have the latest firmware

Once you are finish, please update the remote with the configuration on the account by Clicking update remote. If this does not resolve the difficulties you are experiencing with the LCD screen of your remote then please respond with the following information so we can forward the case over to our Warranty & Repairs Department:


This made my remote screen useful for slightly more than two hours... So I e-mailed the warranty dept. and they sent a refurbished remote right away. 

Posted on Feb 10, 2009

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4. Click "Downloads" at the top and click "Firmware".

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1. Remove the battery, press and hold the 'OFF' button, and re-insert the battery. The screen will display 'Safe Mode!', or the 'Activities' button will be lit.

2. Connect your remote to the computer.

3. Launch the Harmony Remote Software, and log in.

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9 Answers

LCD Screen is blank


Had the same thing:
Step 1 - remove the battery for about 60 minutes. There seems to be a little energy store in the unit and just taking out the battery, counting to 10, and reinstalling it does not work.

Step 2- Do a software update upgrade from the Logitech site. The new firmware level seems to have fixed the base problem.

If you just take the battery out and put it in, it does not work.
If you take the battery out and just hook it up to do a software upgrade, it does not work becuase the remote gets power from the USB commenction so it remains "hung"

The most disturbing thing about the whole event for me was the number of people that had the problem occur about 12 months and 1 day after purchase....ie when it was out of warranty!!!

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