Notebook won’t turn on after screen replacement - Lenovo Legion Silm 5 16IRH8_LOQ 15IRH8 Compal ILG10 LA-M542P Rev 1.0

[viniciussls]

Good morning everyone, this is my first post and I apologize in advance if there are any mistakes in the post.

I have a Lenovo Legion Slim 5 16IRH8_LOQ with the typical issue of stripes on the screen, but I made the mistake of replacing the screen without physically removing the battery, thinking that just pressing the SW2 button would be enough – it wasn't. The board showed consumption, with LED6301 lit up and PU301 getting very hot. I replaced PU301. Now, the board is not working correctly, but it has no consumption, LED6301 stays on, and I haven't found any other signs of a short on the board. 19V is reaching PU301 correctly, but I only found 4.5V on pin 8.

I don't have deep knowledge of electronics, I only do small repairs…
Please, can someone help me?

Link to boardview - https://www.badcaps.net/forum/troubl...matics-request

[viniciussls]

Good morning! Thank you very much for your help, but I had to give the client another computer to resolve this case.

[Hublotdz]

Hi, I need your Bios backup if possible I have the same laptop and I have a Bios problem my chip is W25R256JVEN thank you for your help.

[mon2]

Share the details of PU301. This is the charger IC? Need the topside markings.

Bios requests should be made inside the dedicated bios forum. See above.

[viniciussls]

Good morning! Thank you very much for your help, but I had to give the client another computer to resolve this case.