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3 posts · 2020–2021

2021

Jun 9Downgrade MacOS without second mac (M1)When the macOS 12 beta left my M1 Mac soft-locked in recovery with no way to pick an older installer, I rebuilt a Big Sur installer by swapping the SharedSupport payload — no second Mac needed. Step-by-step, with the exact commands.

2020

Oct 16Reverse engineering TP-Link TAPOA deep dive into the TP-Link Tapo smart plug's local HTTP protocol — the RSA session handshake, the AES securePassthrough encryption layer, and the login flow — reverse-engineered from the Android app, with working Java and Python proof-of-concept implementations.
Sep 25How to use Google Pay on WearOS in unsupported countryA 2020 walkthrough for enabling Google Pay on a Wear OS watch in a country where it isn't officially supported: spin up a proxy VM abroad, route the watch through it with Permanent Proxy, and create a region-matched Google account.