Black screen after booting

Hi @asdsasdsd

Seems like the laptop is not starting and passing POST (power on self test)

Try a full power refresh in case it's a corrupted BIOS that is causing this to happen.

Here’s the procedure:

Turn off the laptop and disconnect the charger (if connected)

Dis-assemble the laptop and disconnect the main battery from the motherboard. You only have to disconnect the main battery cable from the motherboard, not remove the battery from the case.

Disconnect the coin cell RTC battery from the motherboard.

Here’s the hardware maintenance manual for the laptop. Go to the bottom of p.35 (41 of 82 pdf) & then to the bottom of p.41 (47 of 82 pdf) to view the procedure for how to access and disconnect both of the batteries.

When the RTC coin cell battery is out, measure its voltage. If it is <2.6V DC or if the battery is >4-5 years old replace it. Search online for 5B10S34077 or 5B10S34078 to find suppliers that suit you best.

Press and hold the laptop’s Power button for a full 30 seconds and then release it.

Reinsert and reconnect the RTC coin cell battery and reconnect the main battery.

Replace the back cover and connect the charger.

Try to turn on the laptop and check what happens.

If it turns on OK there may be a message stating that the date and time are incorrect. This is normal as the BIOS has been reset back to its factory default state by the above procedure. When the date and time have been corrected, the message won't appear the next time the laptop is turned on. If any user definable BIOS settings were changed by you to suit whatever system requirements you wanted, they will have to be changed back again as well.