DerFetzerAug 5, 2024
Moved from #Plume to my #self_hosted #blog and published the prequel to my #Thinkpad #E531 #hacking series:
https://blog.der-fetzer.de/2024/08/05/thinkpad-e531-hacking-0.html
Hacking my Thinkpad Edge E531Part 0: Make someone else do the hard work

Lenovo is infamously known for building all kinds of hardware allowlists and checks for β€˜genuine’ spare parts into their products.

DerFetzer's Blog
DerFetzerJul 12, 2024

I managed to gain R/W access to the whole EC address space on my #Thinkpad #E531!πŸ’ͺ

And this does not even involve disassembly, soldering or other hardware shenanigans.

Game over #Lenovo!

#hacking

Show threadDerFetzerJul 9, 2024

IT IS CHARCHING!!!!!πŸ₯³

This has been quite a journey!

I plan to create a blogpost and/or repository in the next couple of days.

Hopefully that can help some people having the same problem. But to be fair it is not that easy to reflash the EC. At least you do not have to disassemble the laptop as much as when flashing the BIOS.

#lenovo #thinkpad #e531
#firmware #hacking #reversengineering

DerFetzerJul 7, 2024

Trying to figure out how my #ThinkPad Edge #E531 does the detection that it has a "genuine" battery.

Of course it has to be implemented inside the EC firmware.

It is an ENE KB9012. I have the datasheet as well as a dump of its firmware and the schematics for the laptop. But I cannot find where it writes to or reads from the right #SMBus registers.

Does anyone know where I can get in contact with the right people in this domain?

#reverseengineering #followerpower #firmware #hacking #8051