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Serial Jailbreaking your fw >= 5.6.x Kindle for Dummies
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05-28-2016, 02:24 PM
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geekmaster
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Device: K1 to PW3
The kindle Tx cannot sink enough current to light an LED if your TTL serial adapter has an LED on that line. It prevents the kindle from sending a logic zero. See my level shifter circuit thread.
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