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15 lines
500 B
15 lines
500 B
# MD398 Reverse Engineering
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Resources for the Tytera (TYT) MD398 (aka Radioddity GD-55).
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## Boot modes
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Different boot modes seem to be available:
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| PTT | TOP SIDE BUTTON | BOTTOM SIDE BUTTON | EMERGENCY BUTTON | Function |
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|:---:|:---------------:|:------------------:|:----------------:| -------- |
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| *X* | | *X* | | Flip + Mirror screen |
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| | *X* | *X* | | ??? Black screen no chime, upgrade mode? |
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| | | *X* | *X* | GPS Test mode |
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