wont start, blinking red and white. probook 650 G1

[claus070974]

wont start, blinking red and white. probook 650 G1

[BeemerBiker]

What caused the problem in the first place?
Power glitch? Upgrade to windows 11?
Microsoft or HP update? Add a new device, memory, etc?
BIOS upgrade that went wrong?

Do the blinking lights show a pattern?

Click here for Laptop codes

https://support.hp.com/us-en/help/computer/power-boot-issues

let me know what you find out.

[claus070974]

stop working over night. now blinking red and white at same time, no pattern in the blinking!

[claus070974]

stop working over night. now blinking red and white at same time, no pattern in the blinking!

[BeemerBiker]

May have failed a windows update

Try a hard reset

• Turn on the computer by holding the power button down for 20 full seconds then release.
• Press the Power button one more time (if necessary) to start the computer.

[claus070974]

Damm, doesn't help, stil blinking red and white at same time constant!!! 

[BeemerBiker]

https://www.youtube.com/watch?v=aL9QjgnjxhU&ab_channel=HPSupport

Remove the battery, unplug from wall,  press the on switch a couple of times then plug back in.

Try to turn on using that 20 second hard reset procedure

• Turn on the computer by holding the power button down for 20 full seconds then release.
• Press the Power button one more time (if necessary) to start the computer.
• Tap the ESC key about once a second after you see the LEDs on the keyboard flash.
• Press F2 to run diagnostics: (v) 2.6 or later is recommended.

Go into the BIOS setup and press the function key or select the option to set defaults for all menus.

Press F10 to exit and save.

Put battery back in and see if it works.

[claus070974]

thanks for trying to help me. this is not working for me. it just starts blinking (red and whiter) as soon i plug in the power.

[claus070974 · Accepted solution]

Problem solved, broken charger cable!! soldered it back together and it works again!!!