Lenovo T550 won't start

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Thursday October 26, 2017
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Monday February 1, 2010
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This morning the Lenovo T550 laptop simply doesn't start. Red charge LED not coming on with charger connected, no power button action, zip. It worked normally through last night. I normally get warnings if the AC charger becomes disconnected (it is nearly always connected). Battery is a Li-Ion "68" and appears to have 11.9V, 11.1V and common on its terminals (not sure which is which). AC charger is reading 20VdC. I have seen some sites talking about pulling the battery out, holding the power button down for 30seconds and spinning around 3 times, etc. but all for other models as far as I can tell... Thanks much

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47366
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Monday February 1, 2010
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Try this

1. Remove the battery and cable.

2. Press and hold the power button for 58 seconds.

3. Replug and start.

Good luck