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File Version : V4.34
Description : Sony Ericsson Z550 USB WMC OBEX Interface Device Driver
Copyright : Copyright (c) MCCI 1997-2005
Product Version : V4.34
Product Name : Sony Ericsson Z550 USB WMC OBEX Interface
Company Name : MCCI
Internal Name : Z550obex.sys
File Size: 85696 byte(s) 83.704 KB
MD5 : e5ee781e1126b613c2f5363ba9040a15
SHA1: B06C042A1D567353FE4727B2318716FB1062322E

Download ZD1211U.sys
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How to Install ZD1211U.sys
Repair Sys ProblemsFixing a corrupted or missing ZD1211U.sys error is an easy process with a few steps. Open the zip-file you downloaded.Extract the .sys file to a location on your computer. We recommend you to unzip the file to the directory of the program that is requesting the file.
If that doesn't work, you will have to extract the file to your system directory.
By default, this is C:/WINNT/system32/drivers (Windows NT/2000).
or C:/Windows/system32/drivers (Windows XP, Vista, 7).
Make sure overwrite any existing files (but make a backup copy of the original file)
That should be it. Although not necessary you can reboot your computer as well.