Can you please check which color cable goes to the "1 main" antenna and which color cable goes to the "2 Aux" antenna?
I had my Intel Centrino 6250 installed after I purchased my M645-S4055 and I believe the installer mismatched which color goes to "1 Main" antenna and which color goes to "2 Aux" antenna.
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This site has a disassembly guide for your model with user made pictures, it might have the info you are looking for.
How to disassemble Toshiba Satellite M645, M645D, M640, M640D laptops >> Page 1
Good luck
M645 with Intel Centrino 6250 owners please read
Discussion in 'Toshiba' started by mjnoles1, Apr 16, 2012.