From Newsgroup: uk.d-i-y

I have a Logitech M 185 that is randomly acting up. I've just ordered
another (new) M 185.

Am I supposed to use the same USB tx/receiver for both models?

I mean, I'll be given a new one. I just wonder if the same model will
have the same frequency or not.

Thanks.
--
Ottavio Caruso

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From Newsgroup: uk.d-i-y

Ottavio Caruso <ottavio2006-usenet2012@yahoo.com> wrote:

I have a Logitech M 185 that is randomly acting up. I've just ordered another (new) M 185.

Am I supposed to use the same USB tx/receiver for both models?

I mean, I'll be given a new one. I just wonder if the same model will
have the same frequency or not.

There's a pairing protocol: https://support.logi.com/hc/en-us/articles/5470036605975-Unifying-Receiver-Software-Pairing-and-Troubleshooting

Out of the box they will each talk to the respective receiver without
clashing, but you can pair both with the same receiver if you want.

Theo
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From Newsgroup: uk.d-i-y

On Thu, 28 Aug 2025 15:50:02 +0100, Ottavio Caruso <ottavio2006-usenet2012@yahoo.com> wrote:

I have a Logitech M 185 that is randomly acting up. I've just ordered >another (new) M 185.

Am I supposed to use the same USB tx/receiver for both models?

I mean, I'll be given a new one. I just wonder if the same model will
have the same frequency or not.

Your new mouse will work with your existing USB receiver, and with
most other Logitech mice and keyboards. That's why they, Logitech,
call it a universal adapter.
If you'd changed to one of Logitech's latest MX devices, though, you'd
have to use the Logi Bolt USB adapter supplied with it, because they
don't work with the universal adapters. DAMHIKT. (Logitech have
developed a Bluetooth modification that has increased/improved
security.)
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From Newsgroup: uk.d-i-y

Ottavio Caruso <ottavio2006-usenet2012@yahoo.com> wrote

I have a Logitech M 185 that is randomly acting up. I've just ordered another (new) M 185.

Am I supposed to use the same USB tx/receiver for both models?

I mean, I'll be given a new one. I just wonder if the same model will
have the same frequency or not.

Yes they do and I have used the same dongle for something
like 10 different Logitech model USB tx/receiver, because they
all eventually fail due to the shitty little left button microswitch
and I have had them all replaced for free under warranty

Its not that hard to replace the microswitch but I can't be arsed
to bother since the replacement is free, even if they can't actually
send me a new mouse because they don't make it anymore so
they have to give me a full refund and I buy the replacement on
ebay etc
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From Newsgroup: uk.d-i-y

Peter Johnson wrote:

Your new mouse will work with your existing USB receiver, and with
most other Logitech mice and keyboards. That's why they, Logitech,
call it a universal adapter.

Up to a couple of years ago Logitech called the USB dongle a "unifying receiver" but due to insecurities in the protocol, their newer
mice/keyboards use a "bolt receiver", which is not compatible with the
older unifying receivers.
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From Newsgroup: uk.d-i-y

On Thu, 8/28/2025 10:50 AM, Ottavio Caruso wrote:

I have a Logitech M 185 that is randomly acting up. I've just ordered another (new) M 185.

Am I supposed to use the same USB tx/receiver for both models?

I mean, I'll be given a new one. I just wonder if the same model will have the same frequency or not.

Thanks.

https://hackaday.com/2024/06/15/uncovering-secrets-of-logitech-m185s-dongle/#comments

"Unlike many Logitech mice, this one doesnrCOt include a Unifying receiver,
though itrCOs capable of pairing to one.

Instead, it comes with a pre-paired CU0019 receiver that, it turns out,
is based on a fairly obscure TC32 chipset by Telink"

https://superuser.com/questions/1185591/how-do-logitech-keyboards-coexist-what-if-i-mix-up-the-usb-dongles

"Each Logitech RF device has an unique identifier out of 65,000 available, and
proprietary Logitech RF communication uses 78 channels (in 2.4GHz band). This
white paper from Logitech indicates that interference-free communication
can work up to 78 devices in 10m proximity.

https://www.logitech.com/images/pdf/emea_business/2.4ghz_white_paper.pdf
"

https://superuser.com/questions/1782430/pairing-a-new-logitech-mouse-with-non-unifying-receiver

"Now one button in the mouse stopped working so I bought a new M185 mouse,
but I can't pair it with the older receiver using Logitech's Connect Utility (version 2.30.90).
"

But really, only testing it for yourself, will indicate how it works.

When your new mouse shows up, check for its pre-paired receiver plugged into the storage bay on the mouse.

Paul
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From Newsgroup: uk.d-i-y

Paul wrote:

But really, only testing it for yourself, will indicate how it works.

The new bolt receivers (based on bluetooth) have a green hexagon with lightning icon

<https://resource.logitech.com/w_1206,c_limit,q_auto,f_auto,dpr_2.0/d_transparent.gif/content/dam/logitech/en/business/logi-bolt-wireless-technology/bolt-wireless-technology-faq-01a.png?v=1>

The unifying receivers have a red star icon

<https://resource.logitech.com/w_1206,c_limit,q_auto,f_auto,dpr_2.0/d_transparent.gif/content/dam/logitech/en/business/logi-bolt-wireless-technology/bolt-wireless-technology-faq-02.png?v=1>

If it has no icon, it's a generic 2.4GHz receiver

<https://resource.logitech.com/w_1206,c_limit,q_auto,f_auto,dpr_2.0/d_transparent.gif/content/dam/logitech/en/business/logi-bolt-wireless-technology/bolt-wireless-technology-faq-03.png?v=1>
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From Newsgroup: uk.d-i-y

On 29/08/2025 09:19, Paul wrote:

When your new mouse shows up, check for its pre-paired receiver plugged into the storage bay on the mouse.

Sadly this is normally the case IME
--
I would rather have questions that cannot be answered...
...than to have answers that cannot be questioned

Richard Feynman



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From Newsgroup: uk.d-i-y

On Thu, 28 Aug 2025 19:38:36 +0100, Andy Burns <usenet@andyburns.uk> wrote:

Up to a couple of years ago Logitech called the USB dongle a "unifying >receiver" but due to insecurities in the protocol, their newer >mice/keyboards use a "bolt receiver", which is not compatible with the
older unifying receivers.

"Logitech keyboards and mice vulnerable to extensive cyber attacks"

"Several Logitech keyboards, mice and wireless presenters suffer from security vulnerabilities, Not only can attackers eavesdrop on keystrokes, they can even infect the host system."


https://www.heise.de/news/Logitech-keyboards-and-mice-vulnerable-to-extensive-cyber-attacks-4464533.html

This from 2019...


Thomas Prufer
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From Newsgroup: uk.d-i-y

On 29/08/2025 19:47, Thomas Prufer wrote:

On Thu, 28 Aug 2025 19:38:36 +0100, Andy Burns <usenet@andyburns.uk> wrote:

Up to a couple of years ago Logitech called the USB dongle a "unifying
receiver" but due to insecurities in the protocol, their newer
mice/keyboards use a "bolt receiver", which is not compatible with the
older unifying receivers.

"Logitech keyboards and mice vulnerable to extensive cyber attacks"

"Several Logitech keyboards, mice and wireless presenters suffer from security
vulnerabilities, Not only can attackers eavesdrop on keystrokes, they can even
infect the host system."

Not from 200 meters away...

https://www.heise.de/news/Logitech-keyboards-and-mice-vulnerable-to-extensive-cyber-attacks-4464533.html

This from 2019...

Thomas Prufer

--
"First, find out who are the people you can not criticise. They are your oppressors."
- George Orwell

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