My Laptop either shuts off or reboots when I pick it. Its not the HDD I swapped it to make sure. I think its the power board or a mother board problem. where can I find a parts manual. I've search everywhere to no avail. I also broke the power RIBBON cable that goes from the OFF/ON button to the circuit board.
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First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty. Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.
it could be caused by a lot of things. isolate it first. since its randomly shutting down, try first in normal mode. does it heats up before it turns off, if yes its an overheating issue. you may need to replace fan or even motherboard of your pc. have you checked your battery? is it properly seated? or is the problem happening when your system is plugged with the ac adapter? try to check the power cable.
Try pulling the battery out leave it unplugged to decharge the board for about an hour. Do not put the battery back in just the power adapter and reboot it. If successful shut down replace the battery plug it in and try replicate the issue. Sometimes they will hold a rogue charge on the board for a few minutes to a few hours.
Take the battery and power supply out and hold down the power button for 30 seconds. This will reset your hardware settings. Your backup battery isnt your problem. Does your battery light turn on when charging? Does your keyboard lights light up when it runs for a second (try pressing caps lock)?
get a lappy external caddy that is powered by usb place new harddrive in it. download a copy of hirens sorry dont have the link or use norton ghost ifyou have that boot lappy to os then load cd norton ghost or hirens.hirens has multiple software to disk copy simple and user friendlyso hirens is you best bet. after disk copy swap lappy drive around. send lappy model if you dont know how to install new harddrive i'll loook up to hirensfor you but you could try it was easy to find the last time i got it.