Sd card device driver software not installed? :(

Firstly make sure you have fully backed up your phone including the SD card as unlocking will completely reset you phone & wipe the SD Card. remove SD Card if possible, if it's a built in SD Card connect phone to PC via USB & make a copy of it. I can't stress this enough unlocking bootloader & rooting will cause you to lose all the data on your phone & reset it back to Factory Condition.

Open this link (I can assure you it's 100% safe, it is one of HTC's own sites) :- Welcome to HTCdev

To the right of the M9 Image you will see 3 small boxes, click the 'UNLOCK BOOTLOADER', then click 'GET STARTED'

Now just follow the instructions.

Hope this helps you.

"device driver software was not successfully installed"
Find the correct driver for your computer and operating system.

It's a common problem when you do a OS upgrade, Is that the only device in Device Manager that isn't working? Any Unknown Devices? You didn't supply the Model of Toshiba, or the original OS? Download and save the Card Reader driver for Win 7, Change the Compatibility of the driver and install.

Hi , there,

It is likely the operating system is trying to find the drivers for your sd card reader but is failing.

if you go to mycomputer , right click and go to properties .
in the left hand pane go to device manager, there you should find a device with a caution sign on it either unknown or something.

to install the sd card reader right clickon the devgice and select reisntall drivers and locate the apropriate drivers ,

You can find these on the insternet by looking up the manufacturer.

Hope this helps .

One of two I was say is the issue.

• When you improperly ejected the card you messed up the MFT (master file table) on the card. You will want to format the card.
• You could have hosed the drivers. In Device manager look under the driver details there should be some files listed. You will probably need to delete these and replace them. Since they may be system files you would need to replace them in a live boot environment such as a linux live boot cd (ubuntu.com) would be the easiest. Get the drivers it has listed copy them to a thumb drive. Boot the computer to the live CD, delete the driver files and replace with the new ones.

Good stuff

Check the device manager to see if the card reader is there. Or go to the manufacturers site (HP in your case) and download and install the driver for the reader.
Get online and go to www.google.com In the google search box type: "HP Support" (without the quotes). Look for downloads and drivers. Enter your model number and operating system when requested. Download and install the drivers.You can always buy a reader for under $15 at computer shops that plugs into the USB Port.

click start control panel administration tools computer management device manager look through
all of your devices if you see a yellow question or exclamtion mark or a red X
a new driver will need to be installed right click update driver
if you can see your usb drive and its not working scroll to ports(com&lpt)right click update driver

http://download.cnet.com/o2micro-flash-memory-card/3000-18492_4-163841.html

if this fails to fix the problem your sd card might be faulty

hope this helps

Some SD and MMC have a security feature in them. If so you will need the disk that came along with it. After you install it then that's the time you can fully utilize your SD/MMC. SD means Secure Data / MMC means Multi Media Card.
If your card reader is not appearing in the My Computer then check if it is detected in the Windows device manager. Go to START > CONTROL PANEL > DEVICE MANAGER. Usually it is under the category of Disk Adapters or Human Interface Device. If it's not present then unplug and plug the device back in. Or try a different USB port to see if that will work. If it doesn't then most likely the reader is defective. But if it is detected and still not able to read the SD/MMC and the SD is being read by a different computer then the issue could be that the SD is not compatible with the reader.

Have you tried downloading the drivers for your SD card reader? You can obtain them for your laptop from the Toshiba download site here. Once you install the updated drivers, it will probably solve your problem. If not, leave a comment and I will try to help further.