TV keeps asking for upgrades. After attempts to upgrade the TV software, error message appears: "Invalid Checksum" won't upgrade and have to unplug the TV for 10 minutes to remove the Software Update Application page.

#The error might be caused by a
network connectivity problem,
such as a bad interface cable, a
bad USB port, or an invalid network
configuration setting.
#The error might be caused by the
print job, such as an invalid printer
driver, a problem with the software
application, or a problem with the
file you are printing.
#Upgrading the product firmware
might help resolve the error. See
the product user guide for more
information.
For upgrading the Firmware. go to hp.com, download the firmware, read the read me file before uploading the firmware...

49.XXXXX ERROR To continue turn off then on

A critical firmware error has occurred.
This type of error can be caused by invalid
print commands, corrupt data, or invalid
operations.
In some instances, electrical noise in the
cable can corrupt data during transmission
to the MFP. Other causes include poorquality
parallel cables, poor connections, or
specific software programs.
Sometimes, the formatter itself is at fault,
which is usually indicated by a 79 ERROR
message.

Follow this:

1 Turn the MFP off, and then turn the MFP on.
2 Upgrade the firmware.
3 Try printing a job from a different software program. If the job prints, go back to the first program and try printing a different file. If the message appears only with a certain software program or print job, contact the software vendor for assistance.
4 If the message persists when using different software programs and attempting specific print jobs,disconnect all of the cables that connect the MFP to the network or a computer.
5 Turn the MFP off.
6 Remove all DIMMs and flash-memory cards. Do not remove the firmware memory card that is in slot 1.
7 Remove all of the EIO devices.
8 Turn the MFP on.
9 If the error message disappears, reinstall each DIMM, flash-memory card, and EIO device individually, making sure to turn the MFP power off and then on again as you install each device.
10 Replace the component that caused the error message.
11 If the error persists, replace the formatter.

hello friends want to install games on samsung chat c3222 go to service centre and ask them to upgrade software then you can install jar files and no error message like jar is invalid will be come

The program works for me on IE 8.0.6001.18702

Try upgrading to v4.02 driver. You may need to download 4.0 first as 4.02 may only upgrade from 4.0. The scanner runs with v4.02 on my Mackbook pro but I can only scan using the slide adapter and the film holder at present. The film adapter will not work but i'm not sure if this is a hardware or software problem.

Hi This is from the book I hope it helps as you can see its not a very specific fault

good luck Yours Ian

49.XXXX

PRINTER ERROR

To continue turn off then on

A critical firmware error has

occurred that caused the

processor on the formatter to

abort the operation.

This type of error can be caused

by invalid print commands,

corrupt data, or invalid operations.

In some instances, electrical

noise in the cable can corrupt

data during transmission to the

printer. Other causes include

poor-quality parallel cables, poor

connections, or specific

applications.

Sometimes, the formatter itself is

at fault, which is usually indicated

by a 79 SERVICE ERROR.

1. Press CANCEL JOB to clear

the print job from the printer

memory.

2. Turn the printer off and then

on.

3. Go to htpp://www.hp.com/

support/LJ4200 or htpp://

www.hp.com/support/

LJ4300. Select Download

Drivers and Software. Check

for the latest firmware image

version at the bottom of the

page. If this firmware image

is newer than the one

installed on your printer and

your printer can receive a

firmware update, download

the newer firmware upgrade.

Not all HP LaseJet 4200/

4300 printers can receive

firmware upgrades.

4. Try printing a job from a

different software program. If

the job prints, go back to the

first program and try printing

a different file. If the message

appears only with a certain

software program or print job,

contact the software vendor

for assistance.

5. If the message persists when

using different software

programs and attempting

specific print jobs, disconnect

all cables that connect the

printer to the network or a

computer.

6. Turn the printer off.

7. Remove all memory DIMMs

or third-party DIMMs from the

printer. (Do not remove the

firmware DIMM in slot J1.)

See "Firmware DIMM" on

page 160.

8. Remove all of the

EIO devices from the printer.

9. Turn the printer on.

10. If the error message

disappears, reinstall

each DIMM and EIO device

individually, making sure to

turn the printer power off and

then on again as you install

each device. To replace
a DIMM, see figure 98 on

If, when you try to activate Windows Vista on a computer that was obtained from an OEM, you experience one one of the following symptoms. Error message 1
Error Code: Invalid Volume License Key
Error message 2
Error Code: 0xC004F059
Description: The Software Licensing Service reported that a license in the computer BIOS is invalid.
You receive the following error message:
Error Code: 0xc004f035
The Software Licensing Service reported that the computer could not be activated with a Volume license product key. Volume licensed systems require upgrading from a qualified operating system. Please contact your system administrator or use a different type of key. Article KB94962 will help you. If the following error code or error message appears when users try to activate Windows Vista The activation key You typed is invalid This TechNet thread may prove to be of help. If you face Volume Activation error codes on Windows Vista-based computers, KB938450 will help you troubleshoot them.If, when you try to activate Windows Vista on a computer that was obtained from an OEM, you experience one one of the following symptoms.
Error message 1
Error Code: Invalid Volume License Key
Error message 2
Error Code: 0xC004F059
Description: The Software Licensing Service reported that a license in the computer BIOS is invalid.
You receive the following error message:
Error Code: 0xc004f035
The Software Licensing Service reported that the computer could not be activated with a Volume license product key. Volume licensed systems require upgrading from a qualified operating system. Please contact your system administrator or use a different type of key.
.
If the following error code or error message appears when users try to activate Windows Vista
The activation key You typed is invalid
This TechNet thread may prove to be of help.

If you face Volume Activation error codes on Windows Vista-based computers..

Error 49.xxxx - this type of error can be caused by invalid print comands, corrupt data or invalid operation...try this steps to resolve... :
1 Turn the MFP off, and then turn the
MFP on.
2 Upgrade the firmware.
3 Try printing a job from a different
software program. If the job prints, go
back to the first program and try
printing a different file. If the message
appears only with a certain software
program or print job, contact the
software vendor for assistance.
4 If the message persists when using
different software programs and
attempting specific print jobs,
disconnect all of the cables that
connect the MFP to the network or a
computer.
5 Turn the MFP off.
6 Remove all DIMMs and flash-memory
cards. Do not remove the firmware
memory card that is in slot 1.
7 Remove all of the EIO devices.
8 Turn the MFP on.
9 If the error message disappears,
reinstall each DIMM, flash-memory
card, and EIO device individually,
making sure to turn the MFP power off
and then on again as you install each
device.
10 Replace the component that caused
the error message.
11 If the error persists, replace the
formatter

A BIOS checksum error can be caused by a nearly flat BIOS battery.
I would replace the BIOS battery first before attempting to upgrading the BIOS.
Some motherboard BIOS firmware is upgraded by running a program that has been copy to a DOS boot disk or the upgrage maybe done from within the BIOS setup. These firmware upgrage and instructions are on the motherboard WEB site, in your case the Compaq/HP WEB site. Make sure you select the upgrade for your model motherboard.
NOTE it is possible that if you make a mistake you could ruin your motherboard, if you are not sure seek help from a computer savy friend.
Use this link :-
http://h18000.www1.hp.com/cpq-country/cpq_support.html

The bios upgrade procedure stopped at half , leaving the bios corrupted. The computer now cannot do a regular boot procedure, this is the reason why it cannot recognise some device. If you are still able to boot from floppy, you can restart bios upgrade procedure from floppy. Just download floppy version upgrade and re do setup. Even if you do not find latest bios version, just download a floppy upgrade that is working, so that you can restart your machine regularly , and then do the update to latest version.
If you are not able to complete the bios setup, the only way to fix your motherboard will be flashing the CMOS chipset with a chip programmer device that will reinstall bios straight into cmos chipset.
You can have this done at the service point, in this case consider also replacing your motherboard.

Regards