Originally Posted by Chris Showers

I have been working on a friend's laptop over several power issues. The first was that the AC brick died. Fortunately, his wife had a "compatible" brick. His brick that died was a 90W and his wife's was a 65W but it claimed it was charging and worked for some time. Eventually, the laptop stopped charging and wouldn't come on at all. I determined that the power jack on the motherboard was broken off and got a replacement then desoldered/resoldered the jack. I can't be sure I did the job perfectly but I think I did. Now the laptop won't power on. When I press the power button, the battery charging LED blinks orange 4 times (I think 4 times, it's pretty fast) and then green once. It does this pattern roughly four times. Sometimes it doesn't finish the fourth repetition, sometimes it gets through part of a fifth repetition, and sometimes it stops exactly after four reps. Here are the ideas I have:

1) The battery can't charge from completely discharged with the meager 65W power brick.
2) The battery was damaged in this mess and needs to be replaced.
3) I wrecked the motherboard/power circuitry by taking the laptop apart and reassembling it.

What do you guys think? Are any of these likely? Is there anywhere I can find out what that blink code means? Thanks for your time.

Chris Showers

There is no way to know in advance, except that the IBM Lenovo have been the tops fro reliability since 1992