Brarisou, good job with logs.

So it crashed here at address 00eae67c inside libgarminos.so.

Code:
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The IDA pro disassembly. It is trying to access memory address in R3 that is not available.
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Code:
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I will try to debug the area on my working phone during the weekend and let you know if I find something. Perhaps you can also get IDA pro 6.5 and maybe we could also debug your device.

It looks like you are using Streetpilot 2.35?