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Old 08-26-2012, 10:24 AM   #1
Nate the great
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Hacking the T2

Has anyone started hacking the T2 to free up the Android OS underneath?
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Old 09-03-2012, 12:49 PM   #2
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Silence....
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Old 09-03-2012, 12:51 PM   #3
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Check that Russian forum that hacked the T1.
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Old 09-03-2012, 03:54 PM   #4
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I'm doing it but Russian forum is very quiet.... talking about T2
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Old 09-05-2012, 03:09 PM   #5
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The PRS-T2 goes officially on sale in the next few days in Germany. I guess it's the same in Russia too...
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Old 09-10-2012, 12:57 PM   #6
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If you have a quick look at Russian forum at:
http://www.the-ebook.org/forum/viewtopic.php?t=25032
you realize Boroda doesn't feel like to root the T2.
They are discussing about doing it.
It makes me to feel quite sad....
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Old 09-10-2012, 12:59 PM   #7
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Here's the translated link.

http://translate.google.com/translat...hp%3Ft%3D25032

Last edited by JSWolf; 09-10-2012 at 01:02 PM.
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Old 09-14-2012, 05:57 PM   #8
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Since the PRS-T2 is pretty identical to the PRS-T1 I crossed my fingers and tried to use the PRS-T1 minimal root package with an official "PRS-T2 Updater.package" file (changed the readers name accordingly inside the .bat file). The script runs just fine (with no errors), the reader restarts and is updating, but I guess the magic happens within the original "PRS-T1 Updater.package" from the root package, because after it's done restarting, everything is as it was before.
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Old 09-14-2012, 05:59 PM   #9
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Quote:
Originally Posted by cme View Post
Since the PRS-T2 is pretty identical to the PRS-T1 I crossed my fingers and tried to use the PRS-T1 minimal root package with an official "PRS-T2 Updater.package" file (changed the readers name accordingly inside the .bat file). The script runs just fine (with no errors), the reader restarts and is updating, but I guess the magic happens within the original "PRS-T1 Updater.package" from the root package, because after it's done restarting, everything is as it was before.
Nope. it didn't work. I tried it as soon as I got my T2 a couple weeks ago.
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Old 09-15-2012, 12:42 PM   #10
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but I guess the magic happens within the original "PRS-T1 Updater.package" from the root package, because after it's done restarting, everything is as it was before.
Yes it does happen there.

The "PRS-T1 Updater.package" from the root package looks like (i.e. actually is) a regular firmware update package to the reader, but doesn't contain any updates, but only the update script that is part of all these firmware update packages. And this (root package) script does then it's magic, because as a trusted updater script it has full access to the device.

Unfortunately, these updater packages are encrypted with a key specific to the reader model, so unless we don't know the key for the T2 (for which it would be necessary to have root access to the device), there won't be a root package.
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Old 09-15-2012, 02:12 PM   #11
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I ws wondering if there is some JTAG or similar low-level interface to access the memory.
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Old 09-15-2012, 07:24 PM   #12
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Well, I was hoping that the Android Debug Bridge would do us the favour, because Sony was nice enough to not change the method of entering the test mode - it's the same procedure as for the T1.

But when selecting "Switch ADB" I get "Sorry, this funtion is not available". So either there is something different with the T2 or the Wiki entry is wrong or at least misleading, and it isn't possible to start the Android Debug Bridge Daemon on an unmodified device.

Could anyone check and confirm with an unmodified T1, please?

I suppose that it might be necessary to run porkupan's enable-adb first to make "Switch ADB" work which - again - isn't possible without root access - chicken-and-egg problem.

EDIT: Yes, this thread seems to prove it. A pitty.

Last edited by ebmr; 09-15-2012 at 07:28 PM.
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Old 09-16-2012, 03:17 AM   #13
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There might be one method left to get root access and retrieve necessary information: Booting into recovery mode with either the update.img from rupor-rescue.7z or figonet's update.img which are simple filesystem images that only give root access to the device via usb serial.

With this kind of access it should be possible to retrieve the necessary information from /proc/mtd and to dump the appropriate /dev/mtdblock which contains the keys needed to create packages to free the device.

Who dares?
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Old 09-16-2012, 06:23 AM   #14
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AFAIK both usb-serial driver and ADB are not enable in stock T1 and T2, so it's not possible
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Old 09-16-2012, 06:44 AM   #15
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Quote:
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AFAIK both usb-serial driver and ADB are not enable in stock T1 and T2, so it's not possible
Both images load the serial drivers (although different ones, rupor's image seems to load one needed for Windows, but I'm not sure, figonet's image looks fine for terminal login), so it should work.

With ADB you're right.
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