[Galaxy S III I9305 (4G LTE + 2GB RAM) Android Deve] dyallo:
[BRICK] Screen Corruption - Can enter Download Mode, but not Recovery. Pics included!

I was on the 20140125 or the 20140126 CM 11 nightly, I9305 LTE 16GB.

I had been experiencing unresponsiveness from the device after trying to wake it from deep sleep.

I don't know what happened, I had my phone out, put it in my pocket. Took it out a couple of minutes later, then the screen was on the "Samsung Galaxy SIII I9305"-boot screen, but it stayed there for a long time, so I thought it had hanged.

I rebooted the phone by holding the power button, then the screen showed some distortion/corruption (imagine LESS corruption/distortion in the pictures you see), so I rebooted again, and it showed EVEN MORE distortion/corruptions (white lines)

I cannot boot into Recovery Mode, well - I couldn't tell if I could, because the picture is so corrupted. But as you can see I can enter Download Mode just fine.

However, I can't seem to flash a stock firmware.

At first, I got this:

<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..

Then I tried to reinstall drivers and now I get this:

(Flashing: I9305XXUEMKC_I9305TLAEML1_I9305XXUEMK1_HOME.tar.md5)

<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003>
<ID:0/003> There is no PIT partition.
<OSM> All threads completed. (succeed 0 / failed 1)

A weird thing about this is that when I remove the USB cable, and plug it in again, the phone is no longer recognized by the computer. (Device Manager: "Unknown Device"). To get it to recognize the phone again, I have to restart the phone.

What I haven't tried:

Flashing rom (stock) using Repartition and Pit file. (pit file from: http://xdaforums.com/showthread.php?t=1950591 "[INFO] I9305 PIT File and Flash Analysis + PIT File Download")

Another USB Cable

Another computer. (on x86_64 Win7 Pro)

I have tried:

Odin 1.85, 3.07

Re-installing Samsung USB Drivers (both 1.5.6 and 1.3.1500

Uninstalling USB Drivers, restarting PC, reinstalling drivers

Tried different USB ports. (Haven't tried different cables, only got one available atm)

Different firmwares (4.1.2 and 4.3, both stock).

Following the instructions at http://xdaforums.com/showthread.php?t=1840030 ("How to unbrick your soft-bricked SIII")

Booting phone, waiting for additional drivers to install (none)

Running Odin as Administrator

I also tried following these instructions in order to use Heimdall (the README included in the Heimdal package)

Driver Installation Instructions:

1. Put your device into download mode and plug it in.

2. Run zadig.exe included in the Drivers subdirectory.

3. From the menu chose Options -> List All Devices.

4. From the USB Device list chose "Samsung USB Composite DEvice".

5. Press "Install Driver", click "Yes" to the prompt and if you receive
a message about being unable to verify the publisher of the driver
click "Install this driver software anyway".

6. Done

I can't get further than step 3, because step 4 requires me to chose "Samsung USB Composite Device" from the list of devices detected in zadig.exe and it doesn't detect such a device.

So drivers for Samsung USB Composite Device don't seem to be installed.

In the Windows Device Manager, I can see that a "Samsung Mobile USB CDC Composite Device" and a "Samsung Mobile USB Modem" is connected.

But I do recall that normally, when you set the phone to Download Mode, the computer installs additional drivers, which it now does not.

Perhaps CM11 did something preventing that?

I tried looking for a CM11 flashable via Odin, hoping it might work, but I couldn't find an Odin flashable CM11.

What should I do? Shall I try flashing a stock with repartition and the pit file mentioned above? Or will it not work on a phone with CM11 on it?

Attached are some interesting images

The one labeled "reboot_after_battery_removal" is the one I'm seeing currently. This is how the screen looks after the phone has had its battery removed.

The one labeled "reboot_#1_after_download_mode" is how the screen looks after restarting the phone from the Download Mode screen. As you can see, there is some corruption in the image it's showing. Notice the weird line going through the text "Do not turn off target !!".

The one labeled "reboot_#2_after_downloade_mode" is how the screen looks rebooting from the screen showed in the above mentioned picture. The corruption / distortion is more clear here, the whole screen is.. well, screwed.

From here I can reboot any number of times, and the corruption / distortion won't get worse. The screen seems to be holding on to the "Download Mode-screen"-drawing even after reboots.

However, if I remove the battery, it forgets the image, and the whole screen is distorted / corrupted as in picture "reboot_after_battery_removal".

Does this tell the CM team anything?

I'm currently awaiting instructions, maybe the CM team will want to do some diagnostics on this as it seems quite... heartbricking.