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How the firmware updates work on Toyota Touch & Go

How the firmware updates work on Toyota Touch & Go

Before I start, here’s the TL;DR: Custom firmwares are not possible for Touch & Go without breaking open the device and possibly soldering stuff on it. Don’t try it – you’ll most probably ruin your device. Now that we have that out of the way, let’s continue. Out of curiosity, I wanted to find out what’s lurking inside the Touch & Go unit I have on my car. The device itself reveals very little information about its internals, but a firmware update image provided…

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