HP Compaq Pro 6305 Maintenance And Service Manual page 167

Can not write to the media card.
Cause
The media card is a read-only memory (ROM) card.
Media card is locked. Locking the media card is a safety
feature that prevents writing to and deleting from an SD/
Memory Stick/PRO card.
Unable to access data on the media card after inserting it into a slot.
Cause
The media card is not inserted properly, is inserted in the
wrong slot, or is not supported.
Do not know how to remove a media card correctly.
Cause
The computer's software is used to safely eject the card.
After installing the media card reader and booting to Windows, the reader and the inserted cards are
not recognized by the computer.
Cause
The operating system needs time to recognize the device if the
reader was just installed into the computer and you are
turning the PC on for the first time.
Solution
Check the manufacturer's documentation included with your
card to see if it writable. Refer to the previous section for a list
of compatible cards.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a
Memory Stick/PRO card, make sure that the lock tab located
on the bottom of the Memory Stick/PRO card is not in the
locked position.
Solution
Ensure that the card is inserted properly with the gold contact
on the correct side. The green LED will light if inserted
properly.
Solution
In Windows 7, click Start, select Computer, right-click on
the corresponding drive icon, and then select Eject. Pull the
card out of the slot.
In Windows 8, on the Start screen, type e, and then click File
Explorer from the list of applications. Expand Computer,
right-click on the corresponding drive icon, and then select
Eject. Pull the card out of the slot.
NOTE: Never remove the card when the green LED is
flashing
Solution
Wait a few seconds so that the operating system can
recognize the reader and the available ports, and then
recognize the media inserted in the reader.
Solving Media Card Reader Problems
157