Thanks Roger, that helped me so that I could downgrade it.
I tried nearly all 26x9 version found here:
Code:
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But only C4 version seems to work, and I can not get 630 nor 530 to work.
When GPS start with these version touch display does not work,
and I am not able to select language. The lowest version that work is 7.30

Do you know what it different from C4 and not C4 version?

None of the version I tried does work with gimgunlock - mapsigpatch
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I have tried both Topo maps (locked) and CN South America.

Here is the output of gimgunlock:
Code:
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