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zmatt.net

Dr Matthew Chapman

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Visit zmatt.net → RSS feedOn Hacker News Feb 2016 – Feb 2016

Hardware & Electronics 2

1

Unlocking my Lenovo laptop battery

Introduction Two months ago, I bought a new battery for my Lenovo laptop (a ThinkPad X230T). I was about to go away on holidays and wanted a battery that could last me through a plane flight; the original battery was by then barely lasting ten minutes. Little did I know that I was about to be i

2

Unlocking my Lenovo laptop, part 3

The decryption function If you are just joining this story you may want to start at part 1. In part 2, we discovered that a embedded controller update is performed by uploading a small 'flasher' program to the EC. This flasher program is then responsible for programming a new firmware image t