Disassemble Laptop HP Probook 4520s 

Thanks. Really good explanation.

How to replace cmos battery in hp probook 4520s

Mucias gracias senior Luiz

cool man great explanation!

Buenas tardes. Me podrías decir donde se encuentra la pila de la bios?. Gracias

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if you don't have the bios password for 4520s and you really need to access it, what would you do? both software and hardware side, if it can be done in many ways.

Tenho um igual a esse uso com monitor mesmo assim ele não dá vídeo

Helped me

if you don't have the bios password for 4520s and you really need to access it, what would you do? both software and hardware side, if it can be done in many ways.