Do you want to help out developers? Got a broken device?

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AdamOutler

Retired Senior Recognized Developer
Feb 18, 2011
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We now have the ability to make all devices with Hummingbird processors into "Super-Dev Phones". I just need a single dead board from each model to locate the proper modification. It can be water-damaged, broken, busted, cracked, smacked, set on fire, chewed on by your dog, dropped, thrown against a wall, or otherwise inoperable. I need a mainboard from each device to make this work.

If you wish to donate a dead device, post here, send a PM, or email me at my username @gmail.com

We can bring this modification to every device with the same processor, we just need to perform analysis before you can set up your device for bootloader development, or resurrect them from a hard-bricked state with nothing but software after a slight hardware mod.

We need to locate the xOM5 pin on following devices before they can be modified into UnBrickable Super-Development devices:
SGH-i896 Samsung Captivate UnBrickable thanks: bulletproof
SGH-i897 Samsung Captivate UnBrickable thanks: bulletproof
GT-i9000 Samsung SGS UnBrickable thanks: Zak Stinson
S8500 Samsung Wave Plans Available thanks: Rebellos
S8530 Samsung Wave II Plans Available thanks: Rebellos
SPH-D700 Samsung Epic 4G Plans Available thanks: James I-----
SGH-i997 Samsung Infuse 4G UnBrickable thanks pdx 528e
SGH-T959 Samsung Vibrant UnBrickable thanks: ChauncyG
SGH-T959V Samsung GalaxyS 4G UnBrickable thanks: bhundven
SGH-T849 Samsung Galaxy Tab 7.0 inch
GT-P1000 Samsung Galaxy Tab UnBrickable Thanks F50+
GT-P100 Samsung Sprint Galaxy Tab UnBrickable
SCH-i800 Samsung Verison/US Cellular Galaxy Tab 7.0 UnBrickable
SHW-M180 Samsung Galaxy Tab
GT-i9010 Samsung Giorgio Armani Galaxy
T839 Samsung Sidekick 4g UnBrickable
SCH-i500 Samsung Fascinate UnBrickable thanks: RootzWiki
SCH-i520 Samsung Droid Charge USB OTG port issue thanks: Clarkkent434
7e ViewSonic ViewPad
R90L200 Pandigital 9" tablet
SGH-i987 Samsung Galaxy Tab 7.0
SGH-T849 T-Mobile Samsung Galaxy Tab 7.0
GT-P1000N Samsung Galaxy Tab 7.0
SGH-i877 Samsung Inspiration
GT-I9020 Google Nexus S GSM - Failed -
GT-I9023 Google Nexus S CDMA - USB OTG port issue - Modification located, but CDMA gets in the way of USB OTG

GT-P1010 Samsung Galaxy Tab 7.0 Wi-Fi 16GB
M9 Meizu
SC-01C NTT DoCoMo Galaxy Tab 7.0
X10 Viliv HSPA 32GB
X7 Viliv HSPA 32GB
SCH-i400 Samsung Continuum
M9300 Kyocera Echo
YP-G1CW Samsung Galaxy S WiFi 4.0 8GB
SGH-T759 Samsung Exhibit 4G
yp-g70 Samsung galaxy s wifi 50 2
YP-G70EW Samsung Galaxy S WiFi 5.0 16GB
YP-GB70NW Samsung Galaxy Player 70 32GB
SCH-I500 Samsung Galaxy S Mesmerize
YP-MB2 Samsung Yepp / Galaxy Touch 32GB
GT-I9088 Samsung Galaxy S
YP-GB1EW Samsung Galaxy Player
16GBH-I909 Samsung Galaxy S Pro Galaxy S
SCH-W899 Samsung phone
SCH-R910 Samsung Galaxy Indulge / Forte\
MID8024-4G Coby Kyros 8"
MID7022-4G Coby Kyros 7"
MID1024-4G Coby Kyros 10.1


Just about anything with a Samsung processor in it.. There's so many
devices. These are the most common ones we are targeting.


Once I have received any of the above boards, I will attempt one of the following tricks to find out where the xOM5 resistor lies. Please understand that there is ALWAYS risk while working on electronics. I have done several of these sucessfully.

Methods for locating modificaton
1. Monitor memory locations in real-time while using the viewmem tool for changes to the OM registers. This only works on a rooted and working device. I can short high from behind a 10kohm pull-up resistor to a low value which is pulled down from a 100kOhm pull-down reistor. This will allow the high to counteract the low and a memory location can be monitored while performing this operation. This leaves the device totally operational and is the best way to perform this type of analysis, but is only accessible on some devices

2. Using overlays and processor pinouts, I can trace out likely locations of the xOM5 resistor, make a modification, and watch the results from the SBL over UART. This leaves the device totally operational.

3. Using relative positioning, I can pick a resistor, make a change and test for proper modifiction. This leaves the device totally operational.

4. Using a multimeter, I can remove the processor from a device and trace out the pins manually. This method is only appropriate for a broken device.


As an additional benefeit, we may be able to port the Nexus S bootloaders to the device, allowing for the latest version of Android to be ported easily to the device... After that, Ubuntu, Apple iOS, WP7, you name it...

Let me get into some of the technical details here... If you're not technical, jump to the end.
----
Pure and simple, this is a hardware exploit which allows direct upload of code to run on the S5PC110/Hummingbird/Cortex A8 platform. Samsung's chain of trust(CoT) model uses hardware to authenticate the Integrated Read-Only Memory (IROM), which authenticates the initial bootloader (IBL), which authenticates the Primitive Bootloader(PBL)... The IROM,IBL, and PBL are all loaded in IRAM, the PBL's job is to initialize Dynamic RAM(DRAM) and authenticate/load the Secondary bootloader(SBL AKA BL3), which loads a kernel, which loads the operating system you see on-screen.

This is a two part hack. We've developed a hardware modification which allows USB download of code. We've also developed the Hummingbird Interceptor bootloader(HIBL) which intercepts the CoT and allows a second, unsigned download. The HIBL uses official code to handle authentication, which jumps to another memory location. It's this memory location where we place our exploit. Our exploit reuses the same code that downloads the HIBL to IRAM, but it initializes DRAM which means you can directly upload a SBL(the final bootloader) to DRAM.

So once again.. really quick... We use a hardware mod to download Rebellos' HIBL, which violates the Chain of Trust, exploits a memory jump and allows unsigned code to run on the processor. All this means you can revive a dead phone easily or try out other operating systems and debug easily, regardless of signature checking on the device.
---------

The first part is the hardware modification so things can be tested without risk. Please help out if you have a dead device. I can make constructive use of it, or you can PM me for instructions. Either way, that old junked device you have can help out millions of people.

 
Last edited:

akurei

Member
May 8, 2010
41
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0
33
Bochum, NRW
akurei.org
Is my HTC Desire a Cortex-A8 phone or is it not? I didn't know and just NOW found out (after some googleing): "Nope... Some kind of snapdragon cpu".
But I guess not everyone takes the time to look up the cpu of their phone like I did.

I believe if you explicitely list all C-A8 devices (although it seems like a lot of work to do so) you'll receive more bricked phone donations as when you only list the most common ones, because most guys will probably read this post, say "mhh, no my phones not listed here", close their browser tab and forget about that thread, even though they might have a C-A8 phone.

If you want to maximize the donations of bricked phones, list them explicitely in a "searchable" (=search engine friendly) manner.

Just a recommendation, though :)
 
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Ace42

Senior Member
Jul 20, 2009
11,327
2,037
253
New York
Moto G Power
Motorola Edge
Is my HTC Desire a Cortex-A8 phone or is it not? I didn't know and just NOW found out (after some googleing): "Nope... Some kind of snapdragon cpu".
But I guess not everyone takes the time to look up the cpu of their phone like I did.

I believe if you explicitely list all C-A8 devices (although it seems like a lot of work to do so) you'll receive more bricked phone donations as when you only list the most common ones, because most guys will probably read this post, say "mhh, no my phones not listed here", close their browser tab and forget about that thread, even though they might have a C-A8 phone.

If you want to maximize the donations of bricked phones, list them explicitely in a "searchable" (=search engine friendly) manner.

Just a recommendation, though :)
No it's not ;)

Only phones with the above are from Ol-Sammy, Big Apple, and Google's MOTO . HTC gets their cpu's from Qualcomm which has their own special architecture that's a hybird of Arm v7/v8. But it's closer to v7 so your device can't help them.
 
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AdamOutler

Retired Senior Recognized Developer
Feb 18, 2011
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Miami, Fl̨̞̲̟̦̀̈̃͛҃҅͟orida
So maybe u can run iOS on samsung, or WP7 on iPhone?
Or i misunderstand?

Let me break this down... This modification means you can NEVER brick your phone. You have to physically destroy it. There's no firmware which can ruin the phone. You simply plug it in and run this tool..
2s78isk.png

This tool is still a work in progress. It requires a Linux machine (or linux Virtual machine) in order to run. However, it works, and it works well. This tool will work for:
SGH-i897
SGH-i896
SGH-i9000
SGH-i9010
SGH-i997
GT-P1000
T959... We will need to write another tool for other devices.

What this allows is for debugging of entire operating systems without any risk. For example, I installed BADA Bootloaders to my device last night with one of the guys from the BadaDroid project (they're working on porting Android to Bada). My device totally crapped when it saw that firmware, but it gave detailed logging messages about GPIOs. It would be possible to take that firmware and rewrite it to work with our devices, and it basically eliminates that "what if I screw something up" $600 barrier that prevents porting of other operating systems to our devices.

After I flashed Bada bootloaders with the tool above, I simply pulled the battery out, put it back in, connected to USB, used the tool above and it put my phone back into Odin download mode, at which point I reflashed the device.

We need to spread this mod to all the devices. Currently we have SGH-i897 mod done.
 
Last edited:
Apr 8, 2011
18
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No it's not ;)

Only phones with the above are from Ol-Sammy, Big Apple, and Google's MOTO . HTC gets their cpu's from Qualcomm which has their own special architecture that's a hybird of Arm v7/v8. But it's closer to v7 so your device can't help them.

That would mean the Samsung GT-I917 (Focus) wouldn't work because it uses a Qualcomm CPU. So why was it included in the list?
 
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Ace42

Senior Member
Jul 20, 2009
11,327
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253
New York
Moto G Power
Motorola Edge
That would mean the Samsung GT-I917 (Focus) wouldn't work because it uses a Qualcomm CPU. So why was it included in the list?

I would ask the OP, could be a mistake, unless it still has a xOM5 pin on board. Which could be possible since it's still a Sammy after all. And Sammy makes parts for Apple too. He didn't put any htc phones in the OP, so only Sammy built phones contain the pin he wants.
 

ugothakd

Senior Member
Jun 12, 2011
1,486
407
0
O 'Fallon, MO
Great job! THIS is xda is all about. Hacking the devices until you cant hack them anymore


but no Samsung Epic 4g love?... Its sprints version of the Galaxy S
 
Last edited:

kmmxracer

Senior Member
Oct 5, 2010
236
67
58
Phoenix, AZ
I have a I9020T Nexus S that a shotty kernel made me loose my baseband and pretty much all phone info including IMEI.

It's pretty much a tiny wifi tablet at this point. That being said I'm not sure I want to part ways with it, but I really don't want to send it off to Samsung.

If you guys have and Ideas on how to fix it, I don't mind using it for testing.

Also may be interested in a PM with instructions on what is needed to get the information you'll need to help develop your work.

Either way, thank you all for the hard work, I think this is an awesome development for our community.
 

Samsunguy

Senior Member
Jul 6, 2010
292
42
0
Dallas, Texas
We need to locate the xOM5 pin on following devices before they can be modified into Super-Development devices:

Samsung I9000 SGS
Samsung S8500 Wave
Samsung S8530 Wave II
Samsung SGH-i997 Infuse 4G
Samsung T959 Vibrant
Samsung SGH-T849 Galaxy Tab 7.0 inch
Samsung GT-P1000 Galaxy Tab
Samsung GT-i9010 Girogio Armani Galaxy
Samsung GT-i8350 Omnia 7
Google Nexus S
Apple iPhone4

Just about anything with a CORTEX-A8 processor in it.. There's so many devices. These are the most common.


I just want to help out your list by adding some more common phones that use the Cortex-A8 Processor:

Samsung i8910 Omnia HD
All First Gen. iPad types
Samsung T839 Sidekick 4g
Palm pre, Palm pre plus
Palm pixi, Palm pixi plus
iPhone 3GS
Samsung SCH-i520, Samsung Inspiration, Samsung Stealth V, Droid Charge
Most All motorola android phones running 1ghz processors
Nokia N900
 
Last edited:

nubecoder

Inactive Recognized Developer
Dec 5, 2010
569
556
0
Thankx Samsunguy, could you add in the model numbers as well?

For instance,
Samsung SPH-D700 Epic 4G​
should be added to the list (and I'll be hunting down people with a "broken" Epic for the cause).

=]
 

Samsunguy

Senior Member
Jul 6, 2010
292
42
0
Dallas, Texas
Thankx Samsunguy, could you add in the model numbers as well?

For instance,
Samsung SPH-D700 Epic 4G​
should be added to the list (and I'll be hunting down people with a "broken" Epic for the cause).

=]

I updated my list and added common names and model numbers for the devices that had them.
And no problem :)
 
Last edited:

mystichobo

Senior Member
Sep 25, 2010
277
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Stockholm
mystichobo.com
Hey Adam,
I've got a motorola droid here (with a broken speaker/microphone cable, so sound etc doesn't work), which uses the OMAP3430 CPU, would you be interested in this?

Might be very handy for debugging the Milestone, which is pretty much the same, but GSM and with a locked down bootloader.

Cheers,
Hobo
 

AdamOutler

Retired Senior Recognized Developer
Feb 18, 2011
5,224
9,809
263
Miami, Fl̨̞̲̟̦̀̈̃͛҃҅͟orida
I just want to help out your list by adding some more common phones that use the Cortex-A8 Processor:

Samsung i8910 Omnia HD
All First Gen. iPad types
Samsung T839 Sidekick 4g
Palm pre, Palm pre plus
Palm pixi, Palm pixi plus
iPhone 3GS
Samsung SCH-i520, Samsung Inspiration, Samsung Stealth V, Droid Charge
Most All motorola android phones running 1ghz processors
Nokia N900

Thank you. I will review each one for compatibility. They must be based on Hummingbird archetecture... really quickly, I checked the wikipedia on the Droid Charge and it said S5PC110 so that's a go for sure!

I updated my list and added common names and model numbers for the devices that had them.
And no problem :)
I appreciate that, it makes things alot easier
The Samsung Galaxy Tab 7 Wifi Only GT-P1010 uses the Cortex A-8 too
I will add that one. Thanks.

Hey Adam,
I've got a motorola droid here (with a broken speaker/microphone cable, so sound etc doesn't work), which uses the OMAP3430 CPU, would you be interested in this?

Might be very handy for debugging the Milestone, which is pretty much the same, but GSM and with a locked down bootloader.

Cheers,
Hobo
I'm not sure about Motorola products.. I think they mostly use the Qualcom archetecture... I'll verify to make sure.
 

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  • 82
    We now have the ability to make all devices with Hummingbird processors into "Super-Dev Phones". I just need a single dead board from each model to locate the proper modification. It can be water-damaged, broken, busted, cracked, smacked, set on fire, chewed on by your dog, dropped, thrown against a wall, or otherwise inoperable. I need a mainboard from each device to make this work.

    If you wish to donate a dead device, post here, send a PM, or email me at my username @gmail.com

    We can bring this modification to every device with the same processor, we just need to perform analysis before you can set up your device for bootloader development, or resurrect them from a hard-bricked state with nothing but software after a slight hardware mod.

    We need to locate the xOM5 pin on following devices before they can be modified into UnBrickable Super-Development devices:
    SGH-i896 Samsung Captivate UnBrickable thanks: bulletproof
    SGH-i897 Samsung Captivate UnBrickable thanks: bulletproof
    GT-i9000 Samsung SGS UnBrickable thanks: Zak Stinson
    S8500 Samsung Wave Plans Available thanks: Rebellos
    S8530 Samsung Wave II Plans Available thanks: Rebellos
    SPH-D700 Samsung Epic 4G Plans Available thanks: James I-----
    SGH-i997 Samsung Infuse 4G UnBrickable thanks pdx 528e
    SGH-T959 Samsung Vibrant UnBrickable thanks: ChauncyG
    SGH-T959V Samsung GalaxyS 4G UnBrickable thanks: bhundven
    SGH-T849 Samsung Galaxy Tab 7.0 inch
    GT-P1000 Samsung Galaxy Tab UnBrickable Thanks F50+
    GT-P100 Samsung Sprint Galaxy Tab UnBrickable
    SCH-i800 Samsung Verison/US Cellular Galaxy Tab 7.0 UnBrickable
    SHW-M180 Samsung Galaxy Tab
    GT-i9010 Samsung Giorgio Armani Galaxy
    T839 Samsung Sidekick 4g UnBrickable
    SCH-i500 Samsung Fascinate UnBrickable thanks: RootzWiki
    SCH-i520 Samsung Droid Charge USB OTG port issue thanks: Clarkkent434
    7e ViewSonic ViewPad
    R90L200 Pandigital 9" tablet
    SGH-i987 Samsung Galaxy Tab 7.0
    SGH-T849 T-Mobile Samsung Galaxy Tab 7.0
    GT-P1000N Samsung Galaxy Tab 7.0
    SGH-i877 Samsung Inspiration
    GT-I9020 Google Nexus S GSM - Failed -
    GT-I9023 Google Nexus S CDMA - USB OTG port issue - Modification located, but CDMA gets in the way of USB OTG

    GT-P1010 Samsung Galaxy Tab 7.0 Wi-Fi 16GB
    M9 Meizu
    SC-01C NTT DoCoMo Galaxy Tab 7.0
    X10 Viliv HSPA 32GB
    X7 Viliv HSPA 32GB
    SCH-i400 Samsung Continuum
    M9300 Kyocera Echo
    YP-G1CW Samsung Galaxy S WiFi 4.0 8GB
    SGH-T759 Samsung Exhibit 4G
    yp-g70 Samsung galaxy s wifi 50 2
    YP-G70EW Samsung Galaxy S WiFi 5.0 16GB
    YP-GB70NW Samsung Galaxy Player 70 32GB
    SCH-I500 Samsung Galaxy S Mesmerize
    YP-MB2 Samsung Yepp / Galaxy Touch 32GB
    GT-I9088 Samsung Galaxy S
    YP-GB1EW Samsung Galaxy Player
    16GBH-I909 Samsung Galaxy S Pro Galaxy S
    SCH-W899 Samsung phone
    SCH-R910 Samsung Galaxy Indulge / Forte\
    MID8024-4G Coby Kyros 8"
    MID7022-4G Coby Kyros 7"
    MID1024-4G Coby Kyros 10.1


    Just about anything with a Samsung processor in it.. There's so many
    devices. These are the most common ones we are targeting.


    Once I have received any of the above boards, I will attempt one of the following tricks to find out where the xOM5 resistor lies. Please understand that there is ALWAYS risk while working on electronics. I have done several of these sucessfully.

    Methods for locating modificaton
    1. Monitor memory locations in real-time while using the viewmem tool for changes to the OM registers. This only works on a rooted and working device. I can short high from behind a 10kohm pull-up resistor to a low value which is pulled down from a 100kOhm pull-down reistor. This will allow the high to counteract the low and a memory location can be monitored while performing this operation. This leaves the device totally operational and is the best way to perform this type of analysis, but is only accessible on some devices

    2. Using overlays and processor pinouts, I can trace out likely locations of the xOM5 resistor, make a modification, and watch the results from the SBL over UART. This leaves the device totally operational.

    3. Using relative positioning, I can pick a resistor, make a change and test for proper modifiction. This leaves the device totally operational.

    4. Using a multimeter, I can remove the processor from a device and trace out the pins manually. This method is only appropriate for a broken device.


    As an additional benefeit, we may be able to port the Nexus S bootloaders to the device, allowing for the latest version of Android to be ported easily to the device... After that, Ubuntu, Apple iOS, WP7, you name it...

    Let me get into some of the technical details here... If you're not technical, jump to the end.
    ----
    Pure and simple, this is a hardware exploit which allows direct upload of code to run on the S5PC110/Hummingbird/Cortex A8 platform. Samsung's chain of trust(CoT) model uses hardware to authenticate the Integrated Read-Only Memory (IROM), which authenticates the initial bootloader (IBL), which authenticates the Primitive Bootloader(PBL)... The IROM,IBL, and PBL are all loaded in IRAM, the PBL's job is to initialize Dynamic RAM(DRAM) and authenticate/load the Secondary bootloader(SBL AKA BL3), which loads a kernel, which loads the operating system you see on-screen.

    This is a two part hack. We've developed a hardware modification which allows USB download of code. We've also developed the Hummingbird Interceptor bootloader(HIBL) which intercepts the CoT and allows a second, unsigned download. The HIBL uses official code to handle authentication, which jumps to another memory location. It's this memory location where we place our exploit. Our exploit reuses the same code that downloads the HIBL to IRAM, but it initializes DRAM which means you can directly upload a SBL(the final bootloader) to DRAM.

    So once again.. really quick... We use a hardware mod to download Rebellos' HIBL, which violates the Chain of Trust, exploits a memory jump and allows unsigned code to run on the processor. All this means you can revive a dead phone easily or try out other operating systems and debug easily, regardless of signature checking on the device.
    ---------

    The first part is the hardware modification so things can be tested without risk. Please help out if you have a dead device. I can make constructive use of it, or you can PM me for instructions. Either way, that old junked device you have can help out millions of people.

    9
    Made sticky for the time being

    @all
    If you don´t have any of the requested stuff please stay away from cluttering the thread, all non related posts such as "great idea!" and so will be deleted and re-incidence could lead to a ban
    4
    Added Fascinate to the UnBrickable List. http://forum.xda-developers.com/showthread.php?t=1288162

    The owner of RootzWiki gave me a Fascinate yesterday at the Big Android BBQ. I was able to locate the modification, gather together firmware and make an entire solution available within 24 hours.

    UART: http://forum.xda-developers.com/showthread.php?t=1287780
    UnBrickable Mod: http://forum.xda-developers.com/showthread.php?t=1288093
    How to: http://forum.xda-developers.com/showthread.php?t=1288162
    One-Click software update: http://forum.xda-developers.com/showthread.php?t=1288130

    This is a worlds first for the Fascinate. Never before has there been a method of unbricking a Fascinate. I didn't even have to destroy it! I'm pretty happy about that.
    3
    Yes, it's incredible that a device that sold more than 14 millions units still doesn't have this feature... but in the other hand, if my Galaxy S get bricked, I'd try to repair it, don't you think? :D
    A donation could be better... We donate a small amount of money, the devs buy a Galaxy S (bricked, new, whatever) and they start working :cool:
    I'm also looking forward to try WP7!

    I could manage that if you wanted to start a donation fund... just ensure everyone who donates posts in the thread, and mentions that they donated. and I will acknoledge that I received the money so that everyone knows there's nothing shadey going on. Then I would keep everyone updated so that they know where their money is going. I'm not too keen on "asking for money", however if you wanted to start that thread, then I'll play along and buy a busted i9000 from e-bay.

    Or you could simply send me a device, and I can put it back together, send it back, then you can say.. OMG WHT HAPPND?!?! The processor came off! lol... i'm not recommending this... but hey.. it might work.
    3
    So maybe u can run iOS on samsung, or WP7 on iPhone?
    Or i misunderstand?

    Let me break this down... This modification means you can NEVER brick your phone. You have to physically destroy it. There's no firmware which can ruin the phone. You simply plug it in and run this tool..
    2s78isk.png

    This tool is still a work in progress. It requires a Linux machine (or linux Virtual machine) in order to run. However, it works, and it works well. This tool will work for:
    SGH-i897
    SGH-i896
    SGH-i9000
    SGH-i9010
    SGH-i997
    GT-P1000
    T959... We will need to write another tool for other devices.

    What this allows is for debugging of entire operating systems without any risk. For example, I installed BADA Bootloaders to my device last night with one of the guys from the BadaDroid project (they're working on porting Android to Bada). My device totally crapped when it saw that firmware, but it gave detailed logging messages about GPIOs. It would be possible to take that firmware and rewrite it to work with our devices, and it basically eliminates that "what if I screw something up" $600 barrier that prevents porting of other operating systems to our devices.

    After I flashed Bada bootloaders with the tool above, I simply pulled the battery out, put it back in, connected to USB, used the tool above and it put my phone back into Odin download mode, at which point I reflashed the device.

    We need to spread this mod to all the devices. Currently we have SGH-i897 mod done.
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