By: Majapahit the P A H E T

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Friday, 7-Sep-2007 12:44 Email | Share | Bookmark

I found the following solution workable for my case:
Remove Hidden Devices 1. Click Start. Click Run. Type cmd and press OK.
2. Type “set DEVMGR_SHOW_DETAILS=1″ (without quotation marks) and press Enter.
3. Type “set DEVMGR_SHOW_NONPRESENT_DEVICES=1″ (without quotation marks) and Press Enter.
4. Type “start devmgmt.msc” (without quotation marks) and click press Enter.
5. Click View. Click Show hidden devices.
6. Click “+” to expand Imaging devices, Unknown devices and USB devices.
7. Are there any USB devices and unknown devices (including grayed out devices)? If so, please right click it and click Uninstall.

(It's found on the hersam web site)
After doing this, my device works again with no problem.

Your Problem:
If you get "Usb device not recognized" in Windows and the above solution doesn't work for you, there might be other causes:
A) USB device worked before but suddenly stopped working:

The following solution might be applicable:

1) Remove all oem*.inf files =
1. Click start and click run then under the run line type in the command “cmd” (without the quotation marks)
2. In the command line, type in the following (without the quotes) and press enter after each command:
“cd \"windows\"inf”
“ren infcache.1 *.old”
“ren oem*.inf *.old”
“del C:\"windows\"setupapi.log”

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