M9 doesn’t recognize SD cards after visit to Wetzlar

[irenedp]

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My M9 P just came back from Leica at Wetzlar where they solved a glitch and did a full service. Sadly it does not recognize the SD cards -tried with several-.  I can send it back… will eventually if I can’t solve the problem, but wondered if there’s something I might try first. Thanks in advance! 

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[jaapv]

Check whether the contacts in the camera are clean ( sensor swab and a few drops of cleaning fluid) Carefully! 

[pgk]

Try formatting the cards on your computer using software such as SD Card Formatter. If the camera still won't recognise cards it has used before then it may be a matter of returning it. 

[irenedp]

4 minutes ago, pgk said:

Try formatting the cards on your computer using software such as SD Card Formatter. If the camera still won't recognise cards it has used before then it may be a matter of returning it. 

I have an M9 monochrom and an M10r and tried with cards from both. I didn’t have expectations with those from the 10r. Fast cards usually don’t work with the M9 reader. I will try to clean the contacts, just in case. 

[jaapv]

Cards that have been used in another camera and are switched without formatting using SD Formatter often fail.