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Have logitech harmony 720 remote needs port unable to charge

Lost port n unable to recharge to know if n where i can purchase another port or means to recharge batterie?

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5 Suggested Answers

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Posted on Jan 02, 2017

  • 105 Answers

SOURCE: logitech Harmony 720

This remote is a learning remote it does not exactly take "codes" You need to download software to use this remote you can get this software here:,en?osid=1&file=

hope that helps!

Posted on Jan 31, 2008

  • 101 Answers

SOURCE: I have a logitech Harmony 890 remote. The battery

To check to see if your device is controlled by a RF (radio frequency) or IR (infrared) remote:

Power the device on manually

Cover the front of the original remote that came with the device with your hand

Press any button on the remote that you know the device would respond to normally

If the device responds even when your hand is covering the front of the remote, the remote is RF and the device cannot be controlled by the Harmony remote

Another test that can be performed is using digital camera:

Using any digital camera, even one on a cell phone, camcorder or webcam, look through the screen of the camera at the front of the remote

Press a few buttons on the original remote

If you see flashes of light as illustrated, the remote is IR and the Harmony can control it. If the remote does not flash, this original remote is an RF remote and the device cannot be controlled by the Harmony remote

For comparison, try the same steps with a remote control that you know is working correctly, such as the original remote for the TV, or DVD player. You should see the IR emitters flashing when performing this test.

Posted on Feb 10, 2010

  • 76 Answers

SOURCE: my harmony 890 remote stopped working; wouldn't

Generally there are three possibilities (apart from the battery going bad) that can cause your battery not to charge:

1) Some folks have reported that the battery is not sitting tightly enough in the battery compartment. You can try folding a small piece of thin cardboard and place it between the battery and the back of the compartment. This will push the battery towards the front of the compartment and create a tighter connection against the contacts.

2) There have been reports of problems with some of the charging cradles in which the remote does not make sufficient contact with the contacts in the cradle. To ensure that the remote begins to charge, place it in the cradle and listen for a single beep. The slide show should start and then, after a few moments the screen should darken. If you hear additional beeps at any time, it means that the remote has lost contact with the charging cradle and has 'woken' and is no longer in charging mode. Wiggle the remote to ensure that it is sitting in the cradle and making contact. There are also some fixes that can be done of the cradle itself, including opening it up and adjusting the height of the contacts. Others have had luck cleaning the contacts on the remote and the cradle with alcohol or a contact cleaner like DeoxIT. Still others have actually sanded down the plastic surrounding the contacts on the outside of the remote in order to bring them closer to the cradle contacts.

3) If you still have trouble after you have tried everything above, there may be a loose connection inside the remote itself. There is a very small plug that connects the charging terminals on the remote to the battery compartment. In some cases, this plug can become loose (especially if the remote has been dropped). If all else fails, you can open the remote and check to make sure that the plug is completely seated or attempt to push the terminal contacts slightly farther out. However, most people have found that altering the height of the contacts on the charging cradle is a better way to go. If you want to open the remote, do the following: remove the two screws - one in the battery compartment and one at the top of the remote. Then, using your thumbnail (this is really the best, unless you have a thin, rigid piece of plastic. A part of a credit-card may work), force your nail between the two halves of the clamshell casing near the bottom of the remote on the left or right side. Once you get your nail (or plastic) into the remote, angle it down at about 45 degrees and simply slide your hand up one side. This will release all the locking tabs very nicely without marring the surface of the remote. Then do the same on the other side. Once you are done exploring, simply realign the two halves and snap them back together.

Posted on Mar 06, 2010

  • 89 Answers

SOURCE: I have a Logitech Harmony remote. It won't take a


I had this same problem and looked at the following link to help me out!

Hope this helps!


Posted on Apr 02, 2010

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Unfortunately, the Harmony 890 and 880 chargers have a design flaw that makes the remote slowly become unable to charge. One way that I get around this with my Harmony 880 is to attach an elastic band around the remote when it is in the charger, so that it does not lose contact. You can also purchase one of the new chargers (Logitech redesigned them) for about 10 bucks US. You can order it by calling the Logitech sales line which is 1-800-231-7717.

Jul 22, 2011 | Logitech Harmony 890 LCD Remote Control


Harmony 720 Manual Download

Download Logitech Harmony 720 Remote Control Manual


Have you misplaced your Logitech Harmony 720 Remote Control Owners Manual?

Would you like a digital, searchable, pdf version of the Logitech Harmony 720 Remote Control Users Guide?

Follow this link
to download a pdf version of the operations manual.

I hope that helps.
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on Apr 30, 2010 | Televison & Video

1 Answer

My remote will not charge or do anything when placed in the charging craddle. its about 4 yrs old and I can not get it to charge up.

If you never replace the battery before, you probably need to replace the rechargeable battery by now. lithium ion batteries have limited amount of charge cycles so you just need to replace it. Go to the link above and buy the one for Harmony 890

Mar 03, 2011 | Logitech Harmony 890 LCD Remote Control

1 Answer

We have a Logitech Harmony 890 remote; we are snowbirds and unplug our system when we leave our vacation home from April to Nov. Upon returning this past week and plugging everything back in, we have...


Your best option is to contact Logitech for a replacement battery. If you click on the link below, you will find
a troubleshooting guide for charging problems with the 890 remote:

This page also contains all of the information you need to contact Logitech support. Sorry, there is too much information to paste it all here.

Hope this helps.

Please rate this solution if you find it helpful. Thanks

Nov 03, 2010 | Logitech Harmony 890 LCD Remote Control

1 Answer

I replaced the batteries but the remote does not

Ur Lithium battery fully take in the charges,u recharges?Let the rmote sit without battery about couples hours.Put battery back in again,should work.

Apr 22, 2010 | Logitech Harmony 550 Remote Control

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Logtech harmony 890 usb port missing

I suggest that you contact logitech this is a hardware issue. there are no guarantees that you will be provided with a replacement free of charge, but depending on the region you live in they may have some type of compensation for this.

Americas - yes
Europe - you will have to be sent to level 2 support, yes
Atlantic Pacific - no, you have to take the remote back to point of sale to see if there is anything they can do for you. but i still would recommend contacting logitech for proof that you are having a hardware issue and you have been in contact with them.

Jan 25, 2010 | Logitech Harmony 890 LCD Remote Control

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Need a new LCD for Logitech Harmony 670 remote

Logitech does not sell replacement LCD screens for Harmony remotes.

I would suggest buying a broken remote from eBay or somewhere cheap. However, keep in mind that attempting to repair your remote will void the warranty.

Hope that answers your question.


Oct 26, 2009 | Logitech Harmony 670 Advanced Universal...

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Remote needs ABSOLUTE DIRECT Line of sight

If the battery was out for that long, it's likely that the remote lost its programming.  Did you try reattaching it to the website after the battery had recharged, so that the programming could be restored?

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Volume control

I know this isn't the best solution, but my Logitech Harmony 720 remote controls my hts3450 just fine (volume included).

Nov 12, 2008 | Philips HTS3450 System

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Logitech Harmony 720

This remote is a learning remote it does not exactly take "codes" You need to download software to use this remote you can get this software here:,en?osid=1&file=

hope that helps!

Dec 11, 2007 | Jensen JER-422 Universal Remote Control

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