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Lenovo ThinkPad T400 Wifi
You are better off buying a common WiFi USB adapter and install it, than to replace any built-in adapter your laptop may have. Buying a USB wireless adapter is quick and painless because the only thing you have to know is the current operating system on your laptop. WiFi, or wireless internet, uses a piece of hardware to communicate with your wireless router or modem. Most new Wifi adapters are plug-n-play, which means you simply plug it into a USB port and the OS will install the drivers on its own.
Major warnings the wireless card is in dire need of a replacement
- The wireless adapter driver shows it as not installed
- Your WiFi signal goes in and out over and over again
- The wireless adapter in your Lenovo laptop is unable to connect to the internet
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It is in your best interest to write down the part number so you order the correct WiFi replacement. Try to always get replacement parts from a known seller if you purchase through a website. Lenovo ThinkPad T400 WiFi should be purchased new for a variety of reasons, including wear and tear on an older one. The Lenovo laptop will be better off for ordering smartly online.
Feel free to download your manual for help.
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