Likes: 
I've found in fw_all.bin of 37xx and 34xx some 32KB piece of data which is probably a GPS firmware.
Here is a 34xx v7.90 firmware that has this piece of data replaced with one copied from 37xx v5.00.
Also the GPS firmware version is increased by one (it's just a hardcoded number not related to the GPS firmware).
If someone is not afraid of sacrificing his 37xx device for the sake of science, then I would like to know if the displayed GPS firmware version has changed and if the GPS accuracy is better (and if it works at all!).
I'm not sure what I've just patched so don't flash it unless you're ready to kill your device!
This won't break pre-boot mode for sure. But I have no idea how GPS chip works with wrong firmware version.
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2nd May 2013, 04:26 PM #11Navigation software Moderator
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Last edited by kunix; 2nd May 2013 at 04:37 PM.
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