Hard bricked during CM9 upgrade from UCLD3 Leak?!

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Phalanx7621

Senior Member
Jul 17, 2011
5,017
2,277
Delaware
OnePlus 8 Pro
Google Pixel 5a
Is this really that hard to comprehend? They wouldn't keep it up to download if they knew it was causing hard bricks. Its gone now. Done. Poof. Good lord people its called common sense. Helpful in situations such as this.

Sent from my SGH-I777 using Tapatalk 2
 

abhaxus

Senior Member
Nov 18, 2010
326
76
In our community there are still CWM repack released for every leak, and it is still unsafe to wipe anything. And people still wipe. You guys are lucky to have a phone similar enough to intl sgs2 that you have source, but I think given what I've read here, I'd probably odin a GB kernel and wipe/flash from there.

Sent from my SPH-D710 using xda premium
 

Entropy512

Senior Recognized Developer
Aug 31, 2007
14,088
25,086
Owego, NY
In our community there are still CWM repack released for every leak, and it is still unsafe to wipe anything. And people still wipe. You guys are lucky to have a phone similar enough to intl sgs2 that you have source, but I think given what I've read here, I'd probably odin a GB kernel and wipe/flash from there.

Sent from my SPH-D710 using xda premium

darchstar and sbrissen are working on forward-porting your CDMA and WiMAX drivers to the I9100 update4 base - I think they have everything but CDMA and WiMAX working right now.

The international Note has the same issue - leaks are dangerous. Good thing the I9100 update4 source was also usable for Note with not much work. :)
 

twstd4lfe

Member
Jun 15, 2006
25
10
So since I was an idiot weeks ago and restored my bricked i777 with the broken ucld3 one click..it brought it back from a bad cm9 flash but now all this talk makes me want to downgrade.

Can I use I777UCKH7-CL503881 Stock Binaries from the download repository to restore everything to factory safely?
 
Last edited:

creepyncrawly

Senior Member
Sep 3, 2010
2,768
3,276
So since I was an idiot weeks ago and restored my bricked i777 with the broken ucld3 one click..it brought it back from a bad cm9 flash but now all this talk makes me want to downgrade.

Can I use I777UCKH7-CL503881 Stock Binaries from the download repository to restore everything to factory safely?

UCLD3 system isn't a problem, it's only the original UCLD3 kernel. You could flash a safe kernel and then use CWM from there, or to be more careful, you could flash a custom Gingerbread kernel and flash from recovery.

As far as using I777UCKH7-CL503881 from the download repository, if you don't need to flash bootloaders, I would use the one from the return to the store or warranty guide, which doesn't have bootloaders.
 

twstd4lfe

Member
Jun 15, 2006
25
10
UCLD3 system isn't a problem, it's only the original UCLD3 kernel. You could flash a safe kernel and then use CWM from there, or to be more careful, you could flash a custom Gingerbread kernel and flash from recovery.

As far as using I777UCKH7-CL503881 from the download repository, if you don't need to flash bootloaders, I would use the one from the return to the store or warranty guide, which doesn't have bootloaders.


Thanks for the info...I went ahead and did the full restore just to be on the safe side and it went thru without a hitch
 

blackplague1347

Senior Member
Dec 7, 2011
172
33
Jesus.

Reading this thread makes my noob ass feel like a child sitting around the campfire with a bunch of longtime mobsters, listening to them talk about the guy they just whacked. Except it didn't go exactly as planned, and the guy they whacked wasn't "whacked" right away. He managed to call the cops after overhearing the duo who came to his apartment for the hit talking about their hideout. Their hideout is this campfire and I'm somehow in their company, helplessly waiting for the impending shootout to take place.

That's the sense of horror this thread gave me lol.

I had been using AOKP build 32 for a little while, but for some reason my Temple Run data kept resetting itself and I had to start from scratch (not to mention the fact that it would occasionally freeze my phone and require a battery pull).

Rather than complain to the devs about a little problem with a game, I figured I'd just hop back to a Samsung/AT&T Stock ROM. Naturally I wanted to stay on ICS so I was going to grab the leak and flash it. Luckily the thread had been closed by the time I got there, or... well, you know.

I think I'll stick to 2.3.4 with root for now (despite the infuriating home button lag -- I guess it's better than 2.3.6 and wifi).

tl;dr: As a noob, disaster threads like this terrify me.
 

PatriotXT92

Senior Member
Apr 23, 2011
517
146
New York
Jesus.

Reading this thread makes my noob ass feel like a child sitting around the campfire with a bunch of longtime mobsters, listening to them talk about the guy they just whacked. Except it didn't go exactly as planned, and the guy they whacked wasn't "whacked" right away. He managed to call the cops after overhearing the duo who came to his apartment for the hit talking about their hideout. Their hideout is this campfire and I'm somehow in their company, helplessly waiting for the impending shootout to take place.

That's the sense of horror this thread gave me lol.

I had been using AOKP build 32 for a little while, but for some reason my Temple Run data kept resetting itself and I had to start from scratch (not to mention the fact that it would occasionally freeze my phone and require a battery pull).

Rather than complain to the devs about a little problem with a game, I figured I'd just hop back to a Samsung/AT&T Stock ROM. Naturally I wanted to stay on ICS so I was going to grab the leak and flash it. Luckily the thread had been closed by the time I got there, or... well, you know.

I think I'll stick to 2.3.4 with root for now (despite the infuriating home button lag -- I guess it's better than 2.3.6 and wifi).

tl;dr: As a noob, disaster threads like this terrify me.

I wouldn't be too worried. Just stay away from the AT&T leaks as whatever AT&T touches seems to come with problems. Just use one of the ROMs based on the i9100 firmware and you'll be fine. There are plenty in our development forum and ported development forum.
 

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  • 7
    Just thought I'd post an update on my hard bricked phone:
    Josh from Mobile Tech Videos got a chance to look at my phone today and according to him the eMMC chip is toast. He was unable to recover it using JTAG. Could it just have been a coincidence that several people hard bricked around the same time or did flashing have something to do with the eMMC chip becoming defective?
    Will take my phone back to an ATT service center as soon as I get it back. I don't think I will have much of an issue getting a replacement

    Right now, the general consensus is:
    With the exception of I9100 leaks and kernels built from I9100 update4 sources, Samsung ICS kernels for Exynos4 devices have a SERIOUS bug that causes them to do permanent damage to the eMMC chip. This is most likely to occur when doing a major erase operation (such as a wipe in CWM, but a wipe/factory reset in stock 3e recovery is likely to be just as dangerous)
    This includes kernels from:
    All Epic 4G Touch ICS leaks
    All GT-N7000 (International Note) ICS leaks
    The UCLD3 I777 leak (probably all of the I777 ICS leaks)
    Anything built from the Korean SHW-M250S/K/L bases - this is why there was just a rash of hardbricks with SiyahKernel 3.1rc6 - it was based off of the Korean M250L sources.

    Right now the suspicion is that it is due to this:
    https://github.com/Entropy512/kerne...59551eaf5afc3d68f2da96b0249937bd5e13#L10R1881

    Samsung attempted to fix it with:
    https://github.com/Entropy512/kernel_galaxys2_ics/commit/d069cc5cb9f0fd9409ea10d4037e4c0e68701b8e

    but they only disabled TRIM and not ERASE (which are related)

    Unfortunately there's no way to test this without risk of hardware damage... you can't declare something fixed unless you can reproduce the problem - but you can reproduce this problem once per device repair. So really only Samsung can declare it fixed - but then they'd have to actually interface with the development community.
    3
    Just wanted to chime in from the ET4g community to confirm this is exactly what happens to us on ICS leaks. As stated above it only occurs when flashing on a CWM repack kernel. Mobile ODIN is safe. It Is permanent hardware damage. Nothing will fix it, but I believe that some bricks (ones that will boot to download but can't get past data.img in odin) can have low level repartitions set to avoid the factory data partition. Never done it myself and can't find the link.

    Sorry to hear you guys have same bug. I just wanted to confirm it happens in CWM ICS as stated above. To flash or nandroid we Odin or mobile Odin a repacked GB kernel and flash from that CWM.

    Sent from my SPH-D710 using xda premium
    Yup. It may only affect a small percentage of users, which is why we get dangerous posts from idiots like virus1x of "it's safe for me so it's safe for you" - For example, gokhanmoral was able to wipe multiple times with siyahkernel 3.1rc6 (which was based off of the SHW-M250L update4 sources), but when he released it, multiple users hardbricked. Task650 was able to flash multiple times without trouble - but others hardbricked.

    It may only be 2-3% of users that will hardbrick - but that's still WAY too high considering that a properly working kernel has 0% chance of hardbricking unless you do something really stupid, and even then, until this recent rash of broken ICS kernels, JTAG recovery could resurrect you for $50 or so.
    2
    Well, my phone is non responsive to anything I do and I am unable to get into download mode. I rooted the phone using this guide from creepyncrawley (http://xdaforums.com/showthread.php?t=1311081).

    For a complete device history:

    I later installed a nightly of CM9. Everything worked great for the most part with the various nightly builds. I changed to the UCLD3 leak for awhile without hitch.

    I needed something off of my stock rooted rom from the thread above so I did a restore...again no problems with the switch. I did have to fix permissions to open some apps.

    I switched back to the UCLD3 leak to test data speeds with plans on switch to the new CM 9 nighlty. I booted into recovery and wiped data, cache, and dalvik. I went to install the CM 9 4/17 rom and it checked the rom and started the install. The progress bar never moved at all and after awhile the screen/phone turned off. Since then, the phone is completely unresponsive. I am unable to get into download mode, the cap lights do not turn on...nothing.

    What happened...I have no clue. Is there any way I can fix this with the tools here?

    This might be a stupid question, but... Dead battery?

    Sent from my SGH-I777 using Tapatalk 2 Beta-6
    2
    Cm9 its the devil. You should see how many bricks over in the epic 4touch section. Cm9 needs to be pulled and tested thoroughly. We know they aren't responsible... Well they're right they know about it and release it anyway. That is irresponsible.

    You're ridiculous. Why are you on XDA. You shouldn't even be flashing anything to your devices with the level of intellect that you've shown here. The poop I took this morning made more of a difference here on XDA then you did in your post. :D
    2
    Hmm, odd, that's the most likely way to hose you...

    Either way, do NOT flash anything or nandroid anything using the CWM-repacked UCLD3 kernel. Do NOT restore any Nandroids made with that kernel. Heimdall/Odin something else FIRST.