Top 10 Logitech Harmony 890 LCD Remote Control Questions & Answers

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!!!

Go to this site it might help you. I learned from it. onca there go to the bottom an click on this. The word safe mode appear on remote. What do I do. It should help.
http://logitech-en-amr.custhelp.com/cgi-bin/logitech_en_amr.cfg/php/enduser/std_adp.php?p_faqid=5508&p_created=1160075557&p_sid=IEsI4Jmj&p_accessibility=0&p_redirect=&p_lva=8040&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MiwyJnBfcHJvZHM9ODQ0LDM0MCwxNTMwJnBfY2F0cz0mcF9wdj0zLjE1MzAmcF9jdj0mcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1zYWZlIG1vZGU*&p_li=&p_topview=1

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I called Tech Support, and they walked me through a firmware upgrade, and an update. 
Step 1. Hold down "OFF" button, and remove the battery. Step 2. While holding "OFF" put battery back in. Remote will now enter "Safe Mode"
Step 3. Plug Remote into USB. Step 4. Go to Support -> Downloads -> Firmware from the app. It should update the firmware.
Run the update again, but this time, the only thing I did differently was plug in the remote on the screen whic said: "Done updating Extender, remote to be updated next" rather then the next one. The update went through this time.

HI! Here's what to do if your Logitech Harmony remote's LCD screen has gone blank.


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.
4. Click "Downloads" at the top and click "Firmware".
5. The remote will go through the firmware update.
6. Select "Yes", and click NEXT to update the remote.


If the screen is still blank after you complete these steps, then it is a hardware issue and you should contact Logitech's wonderful support team, given that the remote is still under warranty.

HI! Here's what to do if your Logitech Harmony remote's LCD screen has gone blank.


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.
4. Click "Downloads" at the top and click "Firmware".
5. The remote will go through the firmware update.
6. Select "Yes", and click NEXT to update the remote.


If the screen is still blank after you complete these steps, then it is a hardware issue and you should contact Logitech's wonderful support team, given that the remote is still under warranty.

I had the same problem and when I took the remote apart the ribbon connecting the lcd screen to the remote controller board was sheared. The remote was dropped and the impact caused two of the traces on the ribbon to tear.

This seems as though it may be a hardware issue. Please try contacting logitech through phone support of email support under the contact page on www.logitech.com

hope you can do this at home, try to open your remote control, remove all screws, your need thiner, liquid solution, and cotton wool, drop some thiner on cotton wool and wipe it on board, near volume track, and wipe it very gently, make sure not to overflow the cottonwool with thiner, now after doing this close the remote control, and check if it does work. remote controls are very rare in repiars, this is basic way to make it work, hope it work, if not then try to get the second hand 1...wish you best in this process

Hi. There are a couple of things that you can try to get the remote working. First, you can learn the commands from the original remote for your devices.

Also, ensure that the buttons on the remote are properly mapped to commands. You can check your button mapping my clicking "Customize Buttons" beside the icon for your Activities.

Hope that is helpful.

-D

Had the same exact problem. Blue screen, no text, but remote worked ok - if you could figure out which buttons did what. Tried every solution posted online - battery pull for 10 sec, battery pull for 1 hr, and battery pull overnight. Tried updating software, firmware, but nothing worked. Found a replacement screen on ebay for $26 shipped, replaced it in less than 5 minutes, and works great.