When I turn on M275 I get power light. The hard drive light and all other lights blink once and fan runs continuously, but no further activity. Tried booting without battery and nothing different.
I have the same M275 tablet and was looking for a solution when I came across your post. I couldn't find a solution so I went over every nook and cranny of my tablet and found my hard drive was not completely pushed in. I pushed it in tried the power button again and it worked! I am shocked because my laptop has been down for a year now. I thought maybe it was a motherboard problem and it was junk. I'm so excited. Anyway all I can suggest is check that the hard drive on the right side is completely plugged/pushed in. I hope that works for you.
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