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#61 | |
Carpe diem, c'est la vie.
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Karma: 10773668
Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
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Quote:
Last edited by geekmaster; 01-13-2013 at 10:11 AM. |
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#62 |
Member
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Karma: 10
Join Date: Nov 2010
Location: Bangalore
Device: SONY PRS-950SC
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How to open the back aluminum cover on Kindle DXG? I have removed the top plastic.
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#63 |
Carpe diem, c'est la vie.
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Karma: 10773668
Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
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#64 |
Enthusiast
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Karma: 59420
Join Date: Feb 2012
Device: Kindle Touch
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Is 5V USB/TTL ok???
Hi,
The edited topic starting post from stangri makes it look like 5V USB/TTL adapter like the following ebay link make it possible to unbrick/demo a DX. Is that really the case? Without geekmaster's serial adapter level shifter circuit? I read everywhere else that one needs a 1.8V adapter. Furthermore, I would like to know if it is possible to unbrick/demo the device with the rootfs.img from let's say a hypothetical 3.2.1 image of a certain torrent. Thanks in advance for the clarifications! |
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#65 | |
Going Viral
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Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
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Quote:
Either setting should only be used with a level shifter setting. Only a 1.8v serial adapter should be used without a level shifter. The rootfs question: No. When you read the tread(s) and directions for running version 3 firmware on a firmware version 2 device, you will find that what is actually used is a mixture of v-2 and v-3. |
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#66 |
Addict
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Karma: 55400
Join Date: Jun 2007
Location: YVR/BWS/PUJ
Device: nook
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rootfs -- as far as I remember yes, if that 3.2.1 image is a specially-made image for DXG. To be honest the most recent DXG I've restored to the 2.5.8 rootfs, but all the previous ones *I think* I just rolled 3.2.1 rootfs onto. It's been a while ago tho, so if knc1 had a more recent experience with the custom 3.2.1 image, listen to him.
For the voltage -- everything I've used is in the photos. I didn't know it required level shifter, so I've used everything as pictured and (knock on wood) haven't fried a single DXG yet. YMMV of course. |
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#67 | ||
Going Viral
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Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
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Quote:
It was the image description: Quote:
Which might be anything, including a hypothetical photograph (image) of Niagara Falls (a torrent). |
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#68 |
Junior Member
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Karma: 11128
Join Date: Jan 2013
Device: Kindle DXGizlle
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undemo
So after reading this and many other threads, I spent a weekend figuring out how to undemo my dxg. I am admittedly a complete noob when it comes to the command line. My first foray into linux was just for the task of this un-demo. That said, I'm sure there are other souls out there that have ventured into these woods armed with only what is in these threads and I thought I'd try to make it a little bit more clear the process I went through. Thanks to yifanlu, geekmaster, stangri and everyone who has shared their workflows.
1. Purchased TTL-232RG-VREG1V8-WE from ftdichip.com. Open the Kindle. Using their pdf schematics, I matched up the cables (4 of them) based on how stangri had proposed and soldered them onto the board. NOTE: NEVER PLUG IN THE AMAZON USB CABLE AND THE TTL CABLE AT THE SAME TIME. 2. Leaving the USB TTL unplugged, I plugged in the amazon usb cable and using Sir Alex's Kindle Diagnostic tool, I got the serial/pw info and recorded it. 3. (The next steps are followed from Yifanlu's debricking method) For Windows, I downloaded Hyperterminal. I downloaded Yifanlu's custom kernel. Plug in the USB TTL. Then I followed his instructions, pressing the enter key to get to uboot and then flashed his kernel. Make sure you follow all the instructions. One step not mentioned was to erase and repartition all the drives. I don't remember which letter that was (I think it was 'I'), but that was key for me. Then make sure you get the machine into recovery mode. 4. Go find the Kindle 3.2.1 firmware. It's floating around on some website (one of them 'bay' websites). Using MinGW, I had to use command line in Windows to extract the rootfs.img. 5. Now that we have our rootfs.img and we've partitioned everything, I moved over to a linux machine. (All I did was download virtualbox and install xubuntu). 6. Then, I moved the rootfs.img file to my home directory in linux. 7. Now, I plugged in the KINDLE to the KINDLE USB cable (Not the TTL cable) to the linux machine. Again from Yifanlu, I followed his instructions for "Restoring Your Kindle." Some people reported that this part of the process takes a long time. It took me less than 10 minutes. No idea why. After it completed I had to do two reboots, but then I was in. I don't know if this helps, but as someone who's very seldom used the command line, I was really confused as to the exact steps. Good luck to everyone! |
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#69 |
Going Viral
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Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
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1) ONLY use three leads - the TX, RX, and GND lead! Don't connect the power lead of the cable, that is a **SUPPLY** lead!
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#70 |
Junior Member
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Device: Kindle DXGizlle
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undemo
If that works for you, then do it that way. I connected all four and had zero problems. I am no electrician, so I can't pretend that me doing it my way without frying the board wasn't just pure dumb luck.
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#71 | |
Going Viral
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Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
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Quote:
![]() Dumb luck plus that warning to not connect both USB and serial at the same time. |
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#72 |
Junior Member
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Karma: 11128
Join Date: Jan 2013
Device: Kindle DXGizlle
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Touche.
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#73 | |
Junior Member
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Karma: 10
Join Date: Feb 2013
Device: kindle dx
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Quote:
Can't You give a link to "Yifanlu's debricking method"? Thanks. |
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#74 |
Junior Member
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Karma: 16516
Join Date: Feb 2013
Device: Kindle dx
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Help with dxg undemoing
Hi I bought a demo dxg on ebay and on developers menu I chose M update on mmc and put the password from the sir alex tool.Now it stays on the guy with the tree screen.I can get to the development menu and the reset screen,the progression bar shows but nothing happens comes back the screen with the tree.I got a serial adapter as described here and I tried Hyperterminal but I see nothing.I tried with 3.3 5v nothing,Tried to modify the adapter to output 1.8v ,but still I see nothing.I jumped Tx Rx i see nothing in the Hyperterminal.Maby I fried the kindle ? or the addapter is no good.Please help!!Thanks
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#75 |
Junior Member
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Karma: 11128
Join Date: Jan 2013
Device: Kindle DXGizlle
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