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[BOOTLOADER] Locked bootloader research and news [Updated: 7/16/2012]

7th July 2012, 09:20 AM   |  #1  
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Since locked Verizon SGS3 is now the main problem, i'v decided to split my kernel thread to separate one that focus directly on unlocking bootloader and progress in that matter.

Summary of the problem

Verizon model is protected from flashing unsigned/modified boot.img and recovery.img. Which means there is no known root method as for now for SCH-I535.
And that is where our adventure starts ....


Rooted stock boot.img issue:
Quote:

<ID:0/008> Firmware update start..
<ID:0/008> boot.img
<ID:0/008> NAND Write Start!!
<ID:0/008> FAIL! (Auth)

CWM Recovery.img flash issue:
Quote:

<ID:0/003> Firmware update start..
<ID:0/003> recovery.img
<ID:0/003> NAND Write Start!!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.

Research status: 50%
+ 20% - Some devs stated that RIL is hacked and there is also sucessfull Kexec implentation in works - http://forum.xda-developers.com/show...&postcount=262 Stay tuned for more news. Kexec proof-of-concept thread: http://forum.xda-developers.com/show....php?t=1760678
+ 20% - phone can boot from unsigned boot.img flashed to recovery partition, this will leave you without recovery and requires to boot-trough-recovery every time u rebooting phone! (thanx invisiblek)
Links: http://forum.xda-developers.com/show...9&postcount=47 , http://pastebin.com/eARk7r48

+ 10% - phone rooted trough system.img tricks -> http://forum.xda-developers.com/show....php?t=1756885 (by invisiblek)


ROM analysys:
boot.img -> signed
recovery.img -> signed
system.img -> not signed
cache.img -> not signed

Update [7/7/2012]
News about locked Verizon model is spreading over the websites and main tech-related portals. Hopefully we will get some detailed info soon.

Update [7/7/2012]
It looks like it has been rooted by using system.img trick (system.img is not signed)
http://forum.xda-developers.com/show....php?t=1756885
Enjoy! and thanx to invisiblek good job!

Update [07/15/2012] VZN insider confirmed this is not a true info
One of thread members chatted with verizon reps over mail & chat and got info that there may be possible unlocker released for bootloader at vzn locked phones. Here's the screenshots of chat: http://i.imgur.com/0lX3o.png , http://i.imgur.com/ULA4X.png
At this is not confirmed yet officialy, it may be interesting finding.

Update [07/15/2012]
Adam Outler posted he's own research info in separated thread, read it. It may help a bit -> http://forum.xda-developers.com/show....php?t=1769411

Update [07/16/2012]
Galaxy S III Verizon Developer edition shows up on Samsung Website! -> http://www.samsung.com/us/mobile/cel...SCH-I535MBCVZW


Thanks!
Last edited by AdamLange; 16th July 2012 at 06:35 AM.
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7th July 2012, 09:20 AM   |  #2  
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<reserved>
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7th July 2012, 09:39 AM   |  #3  
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Help neede:

can anyone with rooted phone dump me partition scheme?

adb shell
command "mount"
copy paste at PM

As the ROM is not containing bootloader, we must dump it from phone

Adam
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7th July 2012, 09:46 AM   |  #4  
Quote:
Originally Posted by AdamLange

Help neede:

can anyone with rooted phone dump me partition scheme?

adb shell
command "mount"
copy paste at PM

As the ROM is not containing bootloader, we must dump it from phone

Adam

this should help you
http://pastebin.com/ruE9UCVi


EDIT: I'll dump anything you need, just PM me
Last edited by invisiblek; 7th July 2012 at 10:49 AM.
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7th July 2012, 11:04 AM   |  #5  
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Quote:
Originally Posted by invisiblek

this should help you
http://pastebin.com/ruE9UCVi


EDIT: I'll dump anything you need, just PM me

lol lists the year 1969? lol...
7th July 2012, 11:34 AM   |  #6  
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Quote:
Originally Posted by nosympathy

lol lists the year 1969? lol...

45 minutes before Unix Time beings? What's the purpose of that I wonder?

When my phone arrives either today or Monday, I'm willing to supply any info as well!
7th July 2012, 02:37 PM   |  #8  
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Now that we have root and can adb dump, can't we dump this guy's system and get his unique bootloader?

http://forum.xda-developers.com/show....php?t=1754173

Worth a shot, no?
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7th July 2012, 02:52 PM   |  #9  
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Quote:
Originally Posted by biff6789

Now that we have root and can adb dump, can't we dump this guy's system and get his unique bootloader?

http://forum.xda-developers.com/show....php?t=1754173

Worth a shot, no?

I think that's what everyone is waiting for. He just hasn't posted in a little bit, i'm following like 5 threads dealing with his magic unlcoked custom boot screen.
7th July 2012, 03:04 PM   |  #10  
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that hopefully could be flahed over the one we have now. someone please contact him and ask to dump all his partitions and most important bootloader

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bootloader, locked, sch-i535, sgs3, verizon
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