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T520- weird super bright screen wont post

T400/410/420 and T500/510/520 series specific matters only
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Ragnar
Posts: 7
Joined: Sun Feb 10, 2019 9:36 am

T520- weird super bright screen wont post

#1 Post by Ragnar » Thu Apr 02, 2020 8:24 pm

I was in the processing of installing an OS on one of mt t 520's and got called away. I left it running in the boot device screen on the bios and just closed the screen.
Now it wont post or reboot. I get a really bright screen but no thinkpad logo. No booting into the os that is currently on the drive. I have tried powering off. removing the battery. Control alt delete. Hitting the thinkpad button.

Nothing seems to help.

Any thoughts?

RealBlackStuff
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Re: T520- weird super bright screen wont post

#2 Post by RealBlackStuff » Fri Apr 03, 2020 1:26 am

Remove that HDD/SSD and format it in e.g. a USB enclosure.
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kfzhu1229
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Re: T520- weird super bright screen wont post

#3 Post by kfzhu1229 » Fri Apr 03, 2020 11:09 am

Ragnar wrote:
Thu Apr 02, 2020 8:24 pm
I was in the processing of installing an OS on one of mt t 520's and got called away. I left it running in the boot device screen on the bios and just closed the screen.
Now it wont post or reboot. I get a really bright screen but no thinkpad logo. No booting into the os that is currently on the drive. I have tried powering off. removing the battery. Control alt delete. Hitting the thinkpad button.

Nothing seems to help.

Any thoughts?
Perhaps your LCD cable got dislodged when you closed the lid? Try an external VGA monitor
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Lat D830 X9000 8gb 128gb WSXGA+ Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

Ragnar
Posts: 7
Joined: Sun Feb 10, 2019 9:36 am

Re: T520- weird super bright screen wont post

#4 Post by Ragnar » Fri Apr 03, 2020 3:20 pm

kfzhu1229 wrote:
Fri Apr 03, 2020 11:09 am
Ragnar wrote:
Thu Apr 02, 2020 8:24 pm
I was in the processing of installing an OS on one of mt t 520's and got called away. I left it running in the boot device screen on the bios and just closed the screen.
Now it wont post or reboot. I get a really bright screen but no thinkpad logo. No booting into the os that is currently on the drive. I have tried powering off. removing the battery. Control alt delete. Hitting the thinkpad button.

Nothing seems to help.

Any thoughts?
Perhaps your LCD cable got dislodged when you closed the lid? Try an external VGA monitor
Good idea. Unfortunately it didnt work.

kfzhu1229
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Posts: 1529
Joined: Tue Sep 22, 2015 10:59 pm
Location: Toronto, Canada

Re: T520- weird super bright screen wont post

#5 Post by kfzhu1229 » Fri Apr 03, 2020 9:08 pm

Ragnar wrote:
Fri Apr 03, 2020 3:20 pm
Good idea. Unfortunately it didnt work.
Didnt work as of you get a white screen on the external monitor or get no output? Maybe you need to fiddle around with fn f7 to get that to show.
Did you say you see no hard drive activity or anything like that? Do you hear the bios beep if you press the thinkvantage F1 or f12 after the screen starts up?
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Lat D830 X9000 8gb 128gb WSXGA+ Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

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