Hi
I have a low end laptop and this no have a internal bluetooth, and connect an adapter
bluetooth everyday is not good idea ...
The device manager says 10 ports usb and only four are for the normal user and another six are in the chipset (intel design page), the laptop Acer 4720 is the same 4320 but with two extra devices; CCD Camera and Bluetooth then the idea is find the internal usb points or connector where is originally connected those devices.
System Block diagram:
Click to view attachment
Tools list:
1.- Driverscrew (cross type)
2.- Solder gun & solder past
3.- Some wires
4.- USB female conector
5.- Multimeter
6.- Service Manual http://www.google.com.mx/search?hl=es&...uscar&meta=
7.- A good camera ? or if no have a money then take your pictures with a Celular phone, in this guide a old Treo 650 was used.
Steps:
1.- Disassembly the laptop, how ? see the Service manual for details ...
2.- In the page 91 from service manual is the motherboard showing the jumper and connector locations:
Click to view attachment
I used the CN6 Connector, only that the 5V USB signal is not prensent here, then i decided solder two wires from original port (bluetooth only take about 50mA, a USB Standard port give 500mA)
Click to view attachment
Click to view attachment
A picture of my laptop while i was working in this mod:
Click to view attachment
And finally the USB Bluetooth inside:
Click to view attachment
The bluetooth works fine in both operating systems (Win XP and Leopard).
I hope this little guide can help someone.