Dell latitude e4310 failed to start

grvknp

Estimable
Jun 15, 2014
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Hi, in my Dell latitude e4310, when I connect charger cable, battery led is blink twice and then continues glowing, but when I push power button, it glows for 30 sec or so and then off. During power button glowing, I hear no sounds like no internal components are working. What should I do?