JMicron SD card reader not working under windows 10

[Inkoper]

After upgrading windows 7 64-bit to windows 10 64-bit the card reader is not accessable any more.

Is there an updated driver somewhere?

[Paul_Tikkanen]

Hi:

I believe the W8.1 card reader driver should work.

http://h20564.www2.hp.com/hpsc/swd/public/detail?sp4ts.oid=5212930&swItemId=ob_124666_1&swEnvOid=415...

[Inkoper]

Thank you for your reply.

I tried the 8.1 driver and there is progress i.e. I now get the usb sound when inserting or removing a card but the card drive is still not visible or accessable. So problem not solved yet.

[Paul_Tikkanen]

You're very welcome. Sorry that driver didn't work. When you look in the device manager are there any devices showing up with the little ! mark next to them? If the card reader driver is not properly installed, you should see at least one instance of an item listed as a Base System Device. That is the card reader name when the driver is not installed. If you do not see such a device listed, then unfortunately, I don't know what the problem could be. If you do see a base system device listed, you can try manually installing the W8.1 driver I posted and see if that works.

[Inkoper · Accepted solution]

I have found the solution. The card reader did not have a drive letter so with the disk management tool I set it to  letter H: in my case and after that it was finally visible and accessible in explorer. It did need the 8.1 driver though.

Thanks for your help.

[Paul_Tikkanen]

Anytime.

Glad to have been of assistance.

That's a new one on me!

Never had anyone report that problem before.

[pdqpat]

Since the Windows 10 v1703 Creator's Update recently, my Jmicron Card Reader is gone.  The Device Driver showed under 'Other devices'  3 entried of 'Base System Device' that couldn't load a driver. Another forum identified the JMicron card reader from the device PCI codes VEN_197B&DEV_2382, VEN_197B&DEV_2383, VEN_197B&DEV_2384.

HP does not offer any driver beyond Vista (although it worked in Win10). Windows driver update does not find any driver at all.  Should I hope that a driver will appear?  This laptop is old but the drivers have survived changes from Vista right up to Win10 v1607.

[Paul_Tikkanen]

Hi, @pdqpat :

Just use the newest JMicron card reader driver from your notebook's support page.

Even the Vista one should work if that is the newest one there is.

[pdqpat]

Thanks for prompting me to install the Jmicron card reader driver sp42339.exe for Vista. I thought it odd there was no indication it was installed, so I rebooted the computer. The good news is "Device Manager" has no error icons (!) Bad news is no entry that looked like a card reader, but I did find an odd entry under Software devices called "PAT-PC: Pat-Media:" In the 'details' it shows "Windows Media Player Sharing" under hardware ids. Under events it was started about the same time as the driver. Another mystery.

[Paul_Tikkanen]

You're very welcome.

I would just test it with a supported SD card and see if it works.

I don't have your model card reader. 

They can all be described differently in the device manager depending on the model card reader.