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What's DOS?
Posts: 1
Registered: ‎02-21-2008
Location: Shropshire
Message 1 of 3 (2,673 Views)

T21 will not boot up

My T21 will not start when I press the on button, all that happens is the green light shaped like a barrel with a double arrow in it flashes once. Anyone please help before I bin it. Thankyou
Retired SuperMod
Posts: 9,293
Registered: ‎11-27-2007
Location: SK
Message 2 of 3 (2,670 Views)

Re: T21 will not boot up

This is not an unknown problem, try starting it without the battery. More instances of same/similar experiences can be found at TPF. search the T2 & T3 forum for "bod"



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PepperonI blog 

Retired Moderator
Posts: 424
Registered: ‎11-20-2007
Location: US
Message 3 of 3 (2,633 Views)

Re: T21 will not boot up

Change the unit's CMOS battery.

Full disclosure, I don't work for Lenovo.
James at Thinkpads dot com