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Old 09-22-2019, 03:23 PM   #12
WaseemAlkurdi
Zealot
WaseemAlkurdi began at the beginning.
 
Posts: 147
Karma: 20
Join Date: Jul 2019
Device: Kindle Touch (K5) Wi-Fi x 2, Kindle (7th Gen, KT2), Paperwhite 3rd Gen
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Originally Posted by Yorker View Post
I'm still wondering whether i should take the chance or not, it would save me the time waiting for parts...
On the one hand, fixed Kindle ...
But on the other hand, fried Kindle. Your call.

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That's the thing, where am i supposed to get the resistors and diode, whichever way i take i need parts, i got nothing at the moment as i don't do this often.
Local mobile phone and general electronics repair stores have a good supply of these parts.

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I just googled regulator vs resistor that's how much i know about this stuff lol , i guess a resistor does makes more send at the point but the price for a regulator is a very small margin and it's 1 part instead of 2 resistors right?
It's about whatever you find easier to get. If you (locally shopping around) find somebody who has a regulator in stock, then by all means get one.

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Regarding the serial cable:
1. those are expensive
What? They are around $2 - $4 in price.
From eBay: https://www.ebay.com/itm/TXD-1-8v-PL...e/142006114032

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2. i honestly like to improve my skills and this job fits perfectly for this as there is low risk to mess something up
Ah, that's a good point.

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Why would anyone need 2 ground connections?
I can't think of any other explanation given the point where the cable seems to run to, a point in which a screw is there on my own Kindle.

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I can relate to this but opening every time can also be bad and annoying i guess it really does depend on how often it happens to justify.
If I were to use the Kindle primarily as a small ARM board, then I'd leave them sticking out of the bezel or charging port. A compromise.
But since I'm getting the Kindle as a purposely distraction-free study aid for my failing eyesight, and to hack around when I have free time, I decided that leaving the cable in there would turn of that "urge to hack"

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I've seen some people erase all and then could not recover from it , i thought i'd ask
Can you point me to such an instance? It's pretty much impossible to do.
I initially thought that said people have been wiping /dev/mmcblk0 completely, perhaps by a wrong dd command where of=/dev/mmcblk0.
But if you (1) do a complete image of the eMMC, using this dd command:
Code:
# dd if=/dev/mmcblk0 of=/path/to/image.bin bs=4096
then a second image with @knc1's image backup script, and
(2) stick to the Kindle's partitions when flashing!!
then you're safe. Nothing can then go wrong.

After second thoughts however, look at this tutorial:
https://www.mobileread.com/forums/sh...d.php?t=271750
It starts out with a blank eMMC and from there, writes the bootloader and all.
So really, it's virtually impossible to brick a Kindle by wiping it when you have serial port access.

Last edited by WaseemAlkurdi; 09-22-2019 at 03:34 PM.
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