During I did the disassemble job, I only found one shorty hair in FAN, and very very minor dust there,however I still use dust-remover clean it.
I found I couldn't remove two screws securing the wireless card.
I found a 2-thin-wires(black, red) link between top cover and bottom (motherboard on bottom) which didn't mention anywhere and seems can't disconnect.---anyone can confirm it ?
I found at least 4 or 5 places on motherboard mark as "replaced"
--anyone can confirm it ?
besides there is a cable original didn't properly connect (nearby the phone jack#2), I adjust it.
why HP freaky afraid of my comment in their HP Support document
HP Notebook PCs ? Troubleshooting LED Blink Codes or Beep Codes During Startup or Boot
Content feedback : I tried paste it
the Caps, Lock/Num lights didn?t turn "ON? at all. you didn?t mention the case power button,power lights,touch pad lights on then off, on then off?.
After I adjust a connection nearby phone jack#2 (original didn?t properly connect) I got 3 more (DVD,WI-FI,SD-MS lights on then off, on then off?
Guess what I got HP respose ?
We?re very sorry!
The page you requested can not be found.
We apologize for the inconvenience!
I tried Any other words other than the above are all are accepted !!!
even I inquired ?why are you so freaky afraid your client to tell you the real problems symptons.

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