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.