HP Compaq Evo N1010v Series Service Manual page 106

Symptom
Region Code error
System Error: Unable
to read drive"
message
No DVD or CD-RW
software on notebook
All DVD play is erratic
Keyboard
Some or all keys do
not work properly
Embedded
numeric keypad
does not work
PS/2 keyboard
and mouse with Y-
adapter do not work
3-14 Troubleshooting and Diagnostics
Call Center: Suggestions
DVDs contain embedded
regional codes that prevent
them from playing outside
region in which they are sold.
This error occurs when trying
to play DVD intended for
different region.
NOTE: Most DVD drives allow
region code to be changed only
a limited number of times
(usually no more than 4).
When this limit is reached, last
change is hard-coded on DVD
drive, and is permanent. Refer
to DVD player software help for
details.
Make sure disk is clean,
undamaged, and inserted
correctly. Clean with soft cloth
or replace as needed.
Wait 5 to 10 seconds
after closing tray before
pressing Play.
Restart notebook.
If software was removed, use
the Recovery CDs to reinstall
factory software.
Some DVDs include software
called "PC Friendly". This
software can cause errors
or erratic play. If needed,
uninstall PC Friendly and
restart notebook.
Check settings in Control
Panel.
Press Fn+F8 to activate
numeric keypad, and Lock key
to turn on number lock.
Avoid touching touch pad while
booting or resuming.
Check devices separately.
Repair Center:
Likely Causes
CD/DVD drive
Motherboard
Keyboard
Motherboard
KeyboarD
Motherboard
Y-adapter
PS/2 device
Motherboard
Repair Center:
Comments
HP warranty does
not cover expense of
correcting this
situation.
Make sure CD/DVD
drive is installed
properly.
Try reinserting ribbon
cable in connector on
motherboard.
Service Manual