Looking for a way to read this bios chip. Lenovo Yoga 7 16arp8 bios chip.

[redbaron1007]

I'm working on a lenovo yoga 7 16arp8 that had a bad charge port. When I replaced the port the laptops charge light will come on and stay on now, but when I push the power button the power light will come on for a couple seconds and then go right back out. I'm suspecting a bad bios, but when I went to read the bios to start the process of getting a new one it I found that none of my programmers will read the IC. I mainly use a T48 with Xgpro. I also have a ch341 and it's software that I use for ps5 uart and bios's, and a EZP2019+ and it's software.

The chip is labeled MXIC MX77u2565ofz4142

None of the software or programmers I currently have will read this one. Does anyone know what I need to read it?

[Davi.p]

Some info
datasheet unavailable.. sorry

[SMDFlea]

I'm working on a lenovo yoga 7 16arp8 that had a bad charge port. When I replaced the port the laptops charge light will come on and stay on now, but when I push the power button the power light will come on for a couple seconds and then go right back out. I'm suspecting a bad bios, but when I went to read the bios to start the process of getting a new one it I found that none of my programmers will read the IC. I mainly use a T48 with Xgpro. I also have a ch341 and it's software that I use for ps5 uart and bios's, and a EZP2019+ and it's software.

The chip is labeled MXIC MX77u2565ofz4142

None of the software or programmers I currently have will read this one. Does anyone know what I need to read it?

info:
https://www.elnec.com/en/device/Macr...ad%20I%2AO%29/
U = 1.8V

Make sure you have the latest software for the T48 , Select from the list MX25U25636F and untick "check ID"

I doubt it`s got a bad bios after having a bad charge port. Did you check for shorts. Is it a USB-C port ? ,is the EC ok. Do you have a schematic to check the power sequence.
.

[Davi.p]

before touching the bios needs to check all the dcdc conv.