https://tsvinc.dev/tags/gps/ Recent content in Gps on tsvinc Hugo en-us Sun, 22 Feb 2026 00:00:00 +0000 https://tsvinc.dev/posts/60kb-gps-fix/ Sun, 22 Feb 2026 00:00:00 +0000 https://tsvinc.dev/posts/60kb-gps-fix/ <p>For one night, this looked like the best result of the whole project. My HTC Desire Z, the 2010 Android slider that by then had its camera button wired to a waypoint logger, had spent hours by a window failing to find itself. Then I opened its 60 KB GPS library in Ghidra, found a switch that throws away &quot;intermediate&quot; positions, turned the switch on and rebooted. Two seconds after I pressed the camera button, a coordinate landed in the waypoint file. Six decimal places. Accuracy: zero metres.</p>