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Bootloader Cracking : Devs only

OP HunteronX

1st April 2011, 12:49 AM   |  #841  
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Please stay on topic. I'm getting tons of reports from this thread.
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1st April 2011, 01:06 AM   |  #842  
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Here is the missing pic from Z post.



Sent from my X10 using XDA Premium App
Last edited by GreatBigDog; 1st April 2011 at 01:19 AM.
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1st April 2011, 01:16 AM   |  #843  
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Quote:
Originally Posted by MrHassell

LOL - it's a wee bit small..


hope this helps
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1st April 2011, 01:16 AM   |  #844  
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Quote:
Originally Posted by MrHassell

LOL - it's a wee bit small..

Undelete it. I didn't see the picture (@ work they block everything),

@ janderson = I've been deleting your posts since the beginning of the week . Stop spamming my inbox also.

Everyone happy now?.

Back on track.
1st April 2011, 06:57 AM   |  #845  
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Quote:
Originally Posted by zdzihu

Bootloader is broken/bypassed!
Big bad huge font to avoid confusion =)


@Goroh_kun:

Buddy, I know you're still reading this forums so... I just want you to know that you are absolutely BRILLIANT. You're a STAR.

BIG thanks for all your contributions into this project! Nothing, and I mean NOTHING would happen without you.



@devs:





@SE: lads, it's your turn now - please unlock it already. I promise we won't brick our phones

@all: DON'T ask for details. I will post here when I'm ready to do so. Today (I guess?) is the Arc release date and stuff, I don't want to mess around...


Still busy working abroad,

Cheers,
z

He reads the board for sure...

Thanks to Bin4ry for his belief and efforts.

To all the rest guys/users, russian, chinese, etc forums:
I guess we need to make a good donation to the team right? Or you gonna just use it silently thinking it's supposed to be so by itself? It was good year research to make it happen, so feel a bug inside before you donate

Tschus.
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1st April 2011, 06:59 AM   |  #846  
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Quote:
Originally Posted by blagus

Guys, first, congratulations on great work lately

Second, can someone FINALLY give me simple and precise answer to this question:
What is bootloader, in your terms?
Second Program Loader (SPL)/EROM of SE's phone (S1Boot)/something else?

It's very easy to understand if you read 80-VA593-1_A_AMSS_7500_Secure_Boot_Architecture.pdf
Sorry can't post it here but you can google it to see.

YW
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1st April 2011, 03:13 PM   |  #847  
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2nd call, stay on topic!. If not I'll star issuing some bans.
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1st April 2011, 08:35 PM   |  #848  
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Ok, here we go. It wasn't the April Fool thingy

The bootloader has been bypassed using the kexec/miniloader method

We are able to boot custom kernels now!


I'll keep it short as I'm quite busy today... I haven't had much luck with disabling MPU nor resetting a MCPU - it failed no matter what I did. Same thing with porting shutdown procedures into miniloader. But when I found out that the custom kernel doesn't reboot on baseband 52, I switched to the .504 sources and restarted the work. Using the debugfs tips by Goroh, I realised some stuff I'd rather to keep in between the developers here... And then *poof* - the green USB led appeared and I knew I was getting there!

Anyway... this is the first release of the fully working custom kernel (flashable via xRecovery). I haven't had much time to work on it so it's kind of proof-of-concept. Tested for 48h without any problem (not even a reboot).


FreeKernel-alpha1:

http://www.mediafire.com/?d8v914keiqsmc3n

This is the alpha version of custom 2.6.29 kernel based on the SE sources. I do not plan to work on this release anymore - it is just for testing purpose. From today on I'll start to port SE stuff to the latest (GBread) kernel.


Changes:

- removed 32 fps cap
- implemented netfilter (Droid wall, native USB/wifi tethering etc.)
- undervolted to 0.950mV to save battery
- don't remember what else I did, I bet something nasty
- super ugly boot logo!


Requirements:

- baseband .52 + the relevant kernel
- clean 2.1 ROM, compatibile with .52 baseband (e.g. .504)
- working xRecovery


Please note I am not responsible for any damage this software may cause to your device! Use it at your own risk!

There is absolutely no support for this alpha release!


Big thanks to (no particular order): Goroh_kun, Jerpelea, Bin4ry, Maxrfon, Biktor_gj and everybody else who contributed into X10 custom kernel development.


At first the relevant kernel patches/sources will be delivered to the recognised X10 developers. Later on everything will be released as it's obviously Open Sourced.


Please refrain from posting comments in this thread - it's for developers only. Spamming will only make our task harder to accomplish!


Cheers,
z
Last edited by zdzihu; 1st April 2011 at 08:41 PM.
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1st April 2011, 11:51 PM   |  #849  
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New Thread for feedback purposses
In order to keep this thread clean I create a new thread where feedback for this alfa release can be post.

I hope this help to keep this thread on topic while given the opportunity to devs to get feedback from the community.

Since future releases would be done through recognized devs, this thread would be only for Z's alpha release.
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2nd April 2011, 01:34 AM   |  #850  
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A little something I made to review zdzihu's work.
http://www.youtube.com/watch?v=-MItVzcgq74

Z/devs, if you find this offensive/inappropriate please PM me and I will take it down, no questions asked. I would not want to offend you.

MOD. If you think that this is not the appropriate thread/or spam, feel free to move the post


EDIT: Tested on Trip's latest MIUI release, and it's a no go. The FPS2D averaged at 30...
EDIT2: as a matter of fact, it brought the kernel back to stock, even though i flashed through xrecovery...
EDIT3: Very smooth live wallpapers. no noticeable performance decrease.
EDIT4: @Z. Just fyi, I think you set the CPU voltage too low, because I got a couple of random shutdowns. And they didn't seem like the regular "somethingwrongwiththesystem" shutdowns. So, just for the future reference, if you are going to undervolt your other kernels, know that this is too low. Note shutdowns. not FC/restart

I love my phone again....
Last edited by i_rakov; 2nd April 2011 at 09:30 PM.

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