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Repair guides, disassembly, and troubleshooting information for the Logitech MX Anywhere 3S portable wireless mouse. Released in December 2023 and identified by parts numbers 910-006925, 910-006926, 910-006927, or 910-006928, depending on color. Successor to the MX Anywhere 3.

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Left button not working

The left button intermittently works and has been getting progressively worse over time. Should I follow the disassembly steps as described to replace the battery and try and clean the buttons with compressed air?

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Hi @mcfb, if the Logitech MX Anywhere 3S is still under warranty, I recommend sending it in for repair. Based on my experience, once the warranty has expired the usual fix is replacing the microswitch. The part commonly used is an Omron D2FC-F-7N or similar, which requires desoldering the old switch and soldering in the new one.

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Thanks @augustine, I'm chasing warranty - I'll see how that goes first. Thanks for the help.

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