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Posted

A user has brought me a Dell E4300 laptop which wont boot. What i mean by "wont boot" is it wont get past the Dell Bios screen. Its got the small blue bar stuck at about a 10th of the way across.

 

What i've tried:

Removed HDD,

Removed CD Drive,

Removed, WLAN Card,

Removed Battery (its powered via PSU),

Swapped Ram with another E4300 which works,

Removed Keyboard,

Unplugged CMOS Battery,

Powered on without battery in or plugged into mains to "reduce static"

 

and it still doesn't boot.

 

Is there anything that i've missed?

Posted
is there a jumper to reset the bios to defaults? sometimes you have to remove the battery for a long time for them to clear
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Posted

You've pressed and held the power button for 30 seconds with the battery and PSU removed ?

No shorted pins in a USB socket ?

Does anything happen if you press F2 or F12.

Could be a corrupt BIOS.

Posted
is there a jumper to reset the bios to defaults? sometimes you have to remove the battery for a long time for them to clear

 

Ill leave it completely unplugged from everything an battery removed over night to see what that does but not holding out for much to be honest.

 

You've pressed and held the power button for 30 seconds with the battery and PSU removed ?

No shorted pins in a USB socket ?

Does anything happen if you press F2 or F12.

Could be a corrupt BIOS.

 

Its got 1 usb socket on the right and that looks fine.

 

Nothing happens at F2 or F12, in fact its doesnt even get that far.

 

 

Ive been into the BOIS once to look but that was it.

Posted

I have found some reference to an emergency BIOS recovery procedure, I've not tried it so I can't speak for it's validity, but it might be worth a try.

 

Download the required BIOS file; let's call it x.exe

Extract the HDR file from the x.exe with: "x.exe -writehdrfile". This will give a file x.hdr

Copy x.hdr to a formatted diskette, perhaps on a USB-diskette (might even work on a pen drive)

Rename x.hdr according to the list below

Unplug the adapter and remove the battery from the laptop

Hold "END" down on the keyboard while you plugin the Adapter

The battery light should come on red

Release "END" - the laptop power should up

Wait while the diskette is read, this might take some time (you'll hear it)

The laptop should shut down or restart itself

 

 

Dell Latitude D410 : VENI???.BIN, VENI???.HDR, VENI???.HDC, VEN????.BIN, VEN????.HDR

Dell Latitude D420 : CRO????.bin, CRO????.hdr, CRO????.hdc, D420???.bin, D420???.hdr

Dell Latitude D430 : CAR????.bin, CAR????.hdr, CAR????.hdc, D430???.bin, D430???.hdr

Dell Latitude D610 : AZED???.bin, AZED???.hdr, AZED???.hdc, AZE????.bin, AZE????.hdr

Dell Latitude D620 : TRAV???.bin, TRAV???.hdr, TRAV???.hdc, D620???.bin, D620???.hdr

Dell Latitude D630 : BRIS???.bin, BRIS???.hdr, BRIS???.hdc, D630???.bin, D630???.hdr

Dell Latitude E4300 : LOLA???.bin, LOLA???.hdr, LOLA???.hdc, E4300??.bin, E4300??.hdr

Dell Latitude E6400 : RSH????.bin, RSH????.hdr, RSH????.hdc, E6400??.bin, E6400??.hdr

 

Personally, I'd stick the BIOS chip in an external programmer and see it it can be read.

Posted

This is getting worse.

 

So i followed the instructions above. Holding END and plugging in the PSU shows the Battery LED as Orange (red). When i let go the battery LED flashes Blue and Orange which apparently means "Alternately blinking amber light and blue light — An unauthenticated or unsupported, non-Dell AC adapter is attached to your laptop."... great! It doesnt do anything other than show that the laptop is powered on with the BLUE power LED and a flashing Orange and Blue Battery LED - nothing on screen.

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