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I upgrated the fireware for my D-link 502T, but I found it is dead. only power light is on. I tried reset, but it seems not help, then what so I do? thanks a lot!

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  • lanzhij Aug 05, 2008

    Thanks for your advice. I just solved this problem. I downloaded a .exe firmware, connected it to the computer, then run the firmware, put into and admin as prompted, run it then it is ok! I can use it again. Thanks a lot anyway.


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The only thing to really try is holding the reset button and trying to logon to the router with a web browser. If the firmware update failed i don't believe there's much that can be done.

Posted on Aug 04, 2008

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I have an HP pavilion desktop computer, I always leave it on at all times, my son used it and he shut it off, now it will turn back on...IT seems like it's dead, except for a green light in the back..can...

Hello there, I am the Expert that will be helping you today, my name is damnor01. Welcome to Fixya!

The Green light on the rear is the ethernet/internet cable, try removing this and then power on.
Your computer as you mentioned is in a state that is known as a dead computer system.

What you need to do is reduce the number of variables by removing components, and trying to get the system to POST. Pass the Power On Self Test.
Don't be too quick to replace the power supply, unless you heard a fairly loud pop and the smell of sulfur.
The green light on the rear of the computer chassis indicates to us that the computer is getting some form of power so the power supply is not likely the fault here.
I have published some guides that will get you well on your way in solving this problem.

They are as below;
How to Remove the Side Panels of My Computer Chassis!!!

How do I reset my BIOS/CMOS to defaults?

My Computer is not turning on!!! Is it dead!!! No POST!!!

Yes your computer can be fixed and no your data will still be present on the hard drive. It seems to me to be a hardware fault.
Also try removing the side panel and letting the computer air for a while, 30min or so. Remember to clean the dust from the Processor Heat sink and the chassis as well.
You also want to go through the computer chassis and push in all the connections, 4pin CPU power, 24pin Mainboard power. Graphics card and of course the main power from the wall, check it is indeed on.

Thanking you kindly

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I have dell optiplex 755. I am unable to upgrade BIOS, BIOS is needs to be unlocked so I can upgrate BIOS to the latest. Please help.

Hi Martha,

If you need to unlock/reset bios password, here's what to do:

Unplug the pc and remove the cover. Look at the manboard (the big circuit board inside). look for a round silver button cell battery, about 1.5 centimeters wide. Remove the battery from it's socket and leave it out for 1 hour. Then put the battery back in the same way it came out. Plug in the pc and turn the power on. The bios is now cleared, and you can update it if you like. If this is not what you wanted, or you need more help, reply to me and I can help more.

Hope this helps!



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You might try resetting the bios by removing the battery and the power cable. If there are pins to short do this too after removing the battery and the power cable.

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