I replaced the screen in an HP 15-BS212WM, the screen is cycling through colors instead of booting

[dew13]

I replaced the screen and keyboard in an HP 15-BS212WM, the screen is cycling through colors instead of showing the boot screen. When I boot it up the screen shows a sequence of colors like pink, green, blue, white, grey, instead of the boot screen. I already tested the connections and they are all secure. 

[Dilip_18]

Hi@dew13,

Welcome to the HP Support Community! I'd like to help!

I see you are experiencing screen issues with the HP Laptop is not booting up shows colors. 

The BIOS can be corrupted during normal operation from a failed BIOS upgrade, or damage from a virus.   

Recover the BIOS using a key press combination. 

Turn off the computer. Press and hold the Windows + b keys, and continue to press those keys while you press and hold the power button for 2 to 3 seconds. Release the power button, but continue pressing the Windows + b keys. 

The power light remains on, and the screen remains blank for about 40 seconds before anything is displayed. You might hear a series of beeps (usually 8 beeps). Eventually, an HP BIOS Update screen is displayed and the BIOS update begins automatically.   

NOTE: If the HP BIOS Update screen is not displayed, press and release the power button, and then immediately press the Windows + b keys at the same time, repeatedly, until the computer beeps or opens the HP BIOS Update screen. 

After the BIOS is recovered, a Continue Startup button is displayed and a timer counts down. Click the Continue Startup button to restart the computer immediately, or wait for the computer to restart automatically when the timer reaches zero.

I have a few recommendations 

• Update your Notebook computer to the latest BIOS from HP.COM.
• Make sure the Windows and HP support assistant updates are up to date. 

Try and check in Bios using the F10 key if the screen has colors in Bios. To enter Bios, click restart and keep tapping the F10 key and then turn on the PC at the same time to enter Bios screen. 

If the issue persists in Bios then it is a hardware issue on the screen. 

Hope this helps! Keep me posted. 

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Have a great day!