There was a accidental password lock and I couldn’t remember the password at all. The only option I got was to erase entire data in it. I opted for that. Now, I could connect it to my Wi-Fi network and successfully synced all my files which were on cloud. Happy about that. But, then I connected it to my laptop to copy the files to kindle and it is not getting detected. The cable is fine because it works with my mobile. Connection happens but it reports unknown device. Tried to talk to Amazon customer care but bottom line is they couldn’t help too. Any help is greatly appreciated.
USB port problem in Kindle fire tablet
There’s the problem, your computer cannot recognize your device that’s why it shows the message “Unknown device”. Also, if you will check the Device Manager on My Computer’s Properties, it will show a yellow question mark on the “Universal Serial Bus controllers” section which also indicates that the device is not recognized.
To fix it, you need to install its driver so it can be recognized by the operating system. Fortunately, the required driver for your Kindle Fire tablet is already stored within the device itself. You just need to install it on your computer. To install the driver on your computer, connect your Kindle Fire tablet to your computer using the USB cable.
Make sure you enabled USB Debugging mode on your Kindle Fire. If not, please go to Enable USB Debugging on Kindle Fire first before proceeding. On your tablet, go to Settings then tap Device. Set Enable ADB to ON and accept the pop-up message.
Next, in the ADB Driver Installer screen, click Install.
After that, if Windows Security prompted you, simply click “Install this driver software anyway” to continue.
Wait for the installation to complete. When the installation is successful, you should see this screen at the end.
