Laptop doesn't start

[Potatomaster]

Suddenly my Notebook didnt start, everything was black, no fans, no lights etc. . The Led that shows if the laptop is charging didnt light. I opended it up, took a look at the batterie and the board but i didnt see anything wrong. I decided to buy a other battery because its the easiest error to rule out. Once i had everything back together i tried to start it and surprisingly it started. 

But it showed the error "cmos reset 502". The LED would light now if i plugged it in. Because of the error i thought it is the battery (the battery charged normal and had normal capacity and it was charged more than 50% all the time) I ordered a new one on amazon (no original) and installed it, started it and it worked fine. charged it, everything ok, started it the next day, everything ok again, but today the same problem occured, it wouldnt start. 

I opened it up and took the battery out. When i put the charger in the light would light now, and it started. but it only starts when the battery is out. Is the problem because of the aftermarket battery or do i have a different problem ? 

when the computer is on, it works fine and i have no problems or errors.

Thank you in advance.

[Irfan_06 · Accepted solution]

Hi @Potatomaster,

Welcome to the HP Support Community.

Thank you for posting your query, I will be glad to assist you.

I see that you are facing an issue with your Laptop.

Follow the below steps to fix the issue.

-Perform a drain on your PC.

1) Unplug the power cord from the PC & wall.

2) Disconnect the power cable from the AC adapter if it is a detachable part and keep it aside.

3) Press and hold the power button down for 15 seconds and release the power button, wait for about 30 seconds.

4) Plug the power cord back into the AC adapter, then connect it to the wall and to the charging port on your PC.

5) Power on the PC and check if it boots into Windows now.

- Kindly refer to the steps on this link to troubleshoot and let me know if that resolves the issue.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

I hope this helps.

Take care and have a great day ahead!

Irwin6

HP Support