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Replacing IBM T20 (T21, T22, T23) laptop's BIOS battery |
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Tuesday, 07 December 2010 21:23 |
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It may be that you already saw a couple of screens as shown in the first picture. It can display error codes like 0271, 0251 or Resource conflict. It is probably because the Bios battery doesn’t hold charge anymore and must be replaced.






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Last Updated on Saturday, 26 November 2011 11:06 |