You need the right driver to have bluetooth 4.0 running, the ASUS USB-BT400 driver for Windows 8.1 (Version 12.0.1.170 3) is the one you want to manually install thru device manager.ģ: Check Device Manager and look for your bluetooth device, which should come up as BCM20XXXXX (BCM20702A0) (the X's will be different depending on your exact model but it is not important, what is important, is that you find the proper device.
) 4: Right Click on the BCM20702A0 in device manager and click on "update driver software" 5: Select Browse my computer for updates, 6: Select "Let me pick from a list of Device Drivers" 7: Select "Broadcom" on the left list of manufactures. you will probably see a yellow mark on the icon telling you something is wrong, which is correct. The device should pop up as soon as you plug it in and you will see display manager flicker and it will repopulate its listing. including 7/8.1/10) 2: Plug in USB Bluetooth Device 3: Check Device Manager and look for your bluetooth device, which should come up as BCM20XXXXX (BCM20702A0) (the X's will be different depending on your exact model but it is not important, what is important, is that you find the proper device.
1: Go to Device Manager (this can be done by left clicking on most start buttons. I did this one windows 10 and nothing else. I was able to RESOLVE this issue (exact same as everyone elses Failed Validation / failed to update software) By doing the following: This will work with probably about every version of windows from 7-10.
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