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Old 06-29-2016, 07:20 AM   #4
geekmaster
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Posts: 6,433
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Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
Quote:
Originally Posted by Cex View Post
Thank you for your reply.

I already had read that thread and all the logs seem to start with Uboot messages.

Although I have good soldering skills I'll check my work again, but I'm afraid somehow I toasted the TX pin in the SoC
What serial adapter are you using? If it has a TX LED on it, you may need to remove that (or replace it with a suitable pull-up resistor) because the kindle TX pin cannot sink enough current to pull an LED-connected wire down to a logic zero (as described in my level-shifter thread).

And BTW, "SE Blank <xxx>" is typically known here is "USB downloader mode", so you may need a modern version of "MfgTool" (or other usb downloader tool) to flash your firmware. This mode does not use the serial port, as I understand it. It was probably triggered by a failed firmware update, so your firmware is now corrupted. This can be caused by updating the firmware on a kindle with a low battery (which depletes before completion).

Also, "eMMC destroyed" implies a hardware failure, when it is probably just the contents that are corrupted (due to incomplete firmware update), not the physical device.

Last edited by geekmaster; 06-29-2016 at 08:42 AM.
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