[help] Gnex brick/softbrick/emmc problem topic

Hello guys, Im a experienced user with ROMs, recovery, boot and etc but i have a problem now, and i will try to explain shortly:

AT THE MOMENT:
- I get into fastboot mode
- I get into odin downloading mode
- I have a connection with pc(win8.1)
- The computer can communicate with the phone in fastboot mode and adb(recovery)
- the drivers are installed correctly
- BOOTLOOPIN ON GOOGLE

How this happened:
I was minding my own business and my phone was on my desk when it suddenly rebooted itself and then it bootlooped forever. I had some situations when it rebooted itself but always ended in a successful boot, this time it didnt wanted to start.

What have i done till now:
- First thing i entered recovery(TWRP) and dirtyflashed my current rom version and wiped dalvik/cache. (unsuccessful)
- after several times doing the dirtyflash i finally decided to make a complete hard/factory reset the result was none (after i rebooted to recovery again ALL THE DATA WAS THERE WITHOUT ANY DIFFERENCE, like nothing happened)
- Second thing i tried flashing with Odin3 in Download mode - result was unsuccessful (Operation failed at ~45% and the phone freezed) - I tried this several times with different versions of the software and firmware on 2 different computers (same result)
- Third thing i tried to push img with ADB - no result
- Fourth thing i tried the NexusToolKit and using the UNROOT/GOBACK TO STOCK/SOFTBRICK option - operation was SUCCESSFUL (that's what the cmd console said) BUT, after around 15 mins booting on GOOGLE it started booting my old custom ROM that i had (CarbonROM) with its custom boot animation and i was WTF?! - after several minutes it finally booted the rom. As i tried to unlocked it the touchscreen and processing was very slow and unresponsive, it took around 10-15sec. to unlock the phone and then opening the home menu, and in a short delay the phone restarted itself.
- I tried deleting system,data,userdata,cache and etc with the toolkit but same resault - when i rebooted the information was still there.
- I readed alot on the forums and i found that it maybe caused my my eMMC but long ago i checked with a google store app that my chip is from the safe ones and cant go brickbug.

Some information about the phone:
Product Name - tuna
Variant - maguro 16gb
HW version - 9
Bootloader Version - primemd04
baseband version - I9250XXLJ1
carrier info - none
serial number - 0149C7ED0D020018
signing - production
lock state- unlocked

if anything needed pls ask

[Q] Gnex Brick Mount Fastbood Write Fail help :'( topic

Hi everybody,
ok I will try to make this short :)

I have an experienced user level ROM, recovery, boot, ..
My phone is BRICKED! Is it?

AT THE MOMENT:
- I get into fastboot mode
- I get into odin downloading mode
- I can't start in recovery mode
- I can't start bootloader mode
- I have a connection with a laptop (win XP, as win8.1 didnt work for me)
- The computer can communicate with the phone in fastboot mode
- The computer cant communicate with the phone in Odin mode (at the moment Odin PC SoftWare doesn't recognize the phone)
- I am sure the drivers are installed correctly now. Thanks to the guide with fully stripped drivers.

- Using different, multiple different, no thousand different methods I tried flashing the stock OS (Yakju 4.3)
- I like SkipSoft Android ToolKit (Although I used fastboot and adb commands, I find the toolkit to do the same thing..)
- I always get an Error, when the process of flashing starts.
> PC says : Error
> Phone (in fastboot mode) says: FAILWrite Fail

INTERESTING:
- While I still was able to get into Recovery, the phone couldnt mount the sdcard (=> the internal drive)
- Some of the methods I use make the phone CRASH
> means the screen stops at its position and slowly turns completely purple
- The phone power button doesnt start the phone, to get the phone doing something at all I have to trick it:
..> I plug it into the wall charger
..> I take the battery out
..> I put the battery back in
..> I wait
..> I can get into 3 routines:
^Normal starting routine (of course stuck at google start up, since no Rom is installed)
^fastboot mode (VOL + & - & Power)
^odin mode (VOL - & Power)
..> Then I can just plug the USB cable into the PC
- 2 days ago I had (every single version) of Odin PC Software recognizing the phone (phone was in Odin mode), but it also failed after trying the recommended and unrecommended settings. Ended with an error message.

HOW:
I left my phone overnight in the car (Temp: -2 deg C), while Im sure spotify and maybe other consuming apps were playing.
Next day, my phone battery was empty and I couldnt start my normal ROM. (I had Slim Rom installed)
It was stuck at the "Google" start up display.
First intentions showed that it might be more than just the Software :/
Many days and so many hours of work, research and reading in forums, I decided to take a shot and ask here.
I appreciate everything xda-members have done for me already. Though I never needed to register for my earlier questions.


Phone data:
Product Name - tuna
Variant - maguro 16gb
HW version - 9
Bootloader Version - primemd04
baseband version -
carrier info - none
serial number - -a3c208 ***
signing - production
lock state- unlocked