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Repair guide, disassembly, and troubleshooting information for the Logitech MX Master 3S wireless mouse. Released in 2022 and identified by model number MR0077.

Mother Board problem solve

Any idea where to buy Mx 3s mother board i have to replace it

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3 Comments

curious.....why does it need replacing?

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@ruggb I guess @mostafayehia got the well-known motherboard issue, where the mice is not responding suddenly

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i haven't heard about that issue. So far my 3s stops responding when the battery is exhausted.

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Contact Logitech support for your country, they may simply replace the mouse for you free of charge. They will want the old one returned. I've done this for two mice.

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1 Comment:

Are you talking about under warranty mices ?

Because mine is not under warranty, all they can provide me is 20% coupon

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Mostafa Yehia will be eternally grateful.
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