Related
I have searched this forum for help on my specific problem but can't find anything that will help...i rooted my husbands s3 (ics v 4.04) without any problems using odin, flashed successfully, installed busy box, all ok, then i installed font installer (root), tried changing the font, it said it had done it successfully and that it needed to reboot to finish installing, so i rebooted and now the phone won't go past the samsung logo with the blue led light on the top staying on and kind of going dull and bright.
i've tried resetting the phone and also clearing the cache but this doesn't help either, i've also tried to reflash the file with odin, it again says successful but it still won't go past the samsung logo.
if anyone can help please do as im unsure where to go from here, same thing happened when i tried to root my s2 but i was able to fix it with help and files from this forum
Now since you have already performed factory reset, is it possible to flash stock rom using PC odin again?
watsa said:
Now since you have already performed factory reset, is it possible to flash stock rom using PC odin again?
Click to expand...
Click to collapse
i could try if i had the files and instructions i wrote down all the relevant info before i started
Assuming that you have the international variant I9300 here it is http://forum.xda-developers.com/showthread.php?t=1646610
watsa said:
Assuming that you have the international variant I9300 here it is http://forum.xda-developers.com/showthread.php?t=1646610
Click to expand...
Click to collapse
thanks very much, by international does that mean sim free, it was bought it uk from ebay baseband i9300xxlg8
downloading it now once its (hopefully) flashed successfully can i then go ahead and reroot using the method i did this morning, but obviously NOT install the font installer lol
emma129 said:
thanks very much, by international does that mean sim free, it was bought it uk from ebay baseband i9300xxlg8
Click to expand...
Click to collapse
no not sim free, the usual one with micro sim in it. XXLG8 seems to be right and match the link I shared above.
can I advise using cf root
Most reliable method, installs all you need su/busybox/recovery
http://forum.xda-developers.com/showthread.php?t=1695238
[03.07.2012] CF-Root 6.4 - SuperSU+CWM5.5+CWMManager
Sent from my GT-I9300 using xda premium
thanks very much for your help, thats put it right appreciate all your help
I am having the exact same problem as OP. It's funny, I thought NO ONE would possibly have the exact same problem as me. Only difference is I am on AT&T's SGS3 and I also hit Reboot Now after installation. Looks like i soft bricked it at Samsung splash screen. Could someone PM me or reply with assistance. I can get into download mode. I cannot get into recovery mode to factory reset, clear cache, etc. Searched and searched many threads with countless questions and non specific to my problem.
Have You tried power on system in safe mode?
Wysyłane z mojego GT-I9100 za pomocą Tapatalk 2
Hi guy please im experiencing the same issue ive flashed my s3 with two different stock roms but i still cant boot into recovery or get past the annoying Samsung logo...any help will be deeply appreciated
i have tried different methods to fix this
first thing i did was use odin to put a stock rom on my phone that didn't work with and without pit
then i tried using odin with another stock rom where you had to use bootloader, pda, phone and csc instead of just pda, when i tried this it just stays on datafs and does not move with and without pit
the other thing i tryed was going into recovery mode and putting CF-root and installing CM9 via zip all that did was make the phone stay on the CM9 splash screen
is there something i have missed?
You probably have damaged /data partition.
Have a look at this thread, it may be helpful in your situation.
fxrb said:
Have a look at this thread, it may be helpful in your situation.
Click to expand...
Click to collapse
i have tried that this is where it gets stuck on data
how can i fix the data\ partition
can anyone help please
What model phone do you have? It is printed on the label under your battery.
And what did you try to flash, EXACTLY? (links would be helpful)
Usually getting stuck like this means you were flashing something not meant for your phone.
EDIT: also, there are instructions for installing CM9 on this thread which are supposedly "noob proof". Were these the instructions you followed?
ctomgee said:
What model phone do you have? It is printed on the label under your battery.
And what did you try to flash, EXACTLY? (links would be helpful)
Usually getting stuck like this means you were flashing something not meant for your phone.
EDIT: also, there are instructions for installing CM9 on this thread which are supposedly "noob proof". Were these the instructions you followed?
Click to expand...
Click to collapse
model: GT-I9100
I9100XWLPT_I9100XXLQ6_I9100XEULPA_XEU this one
VillainROM-SGS2-v1.0.tar.md5 this one
and this one I9100XXLPH
yeah i have upgraded CM loads of times with no problems when ever a new nightly comes out i upgrade if the reviews are good
liammozz said:
i have tried different methods to fix this
first thing i did was use odin to put a stock rom on my phone that didn't work with and without pit
then i tried using odin with another stock rom where you had to use bootloader, pda, phone and csc instead of just pda, when i tried this it just stays on datafs and does not move with and without pit
the other thing i tryed was going into recovery mode and putting CF-root and installing CM9 via zip all that did was make the phone stay on the CM9 splash screen
is there something i have missed?
Click to expand...
Click to collapse
Please provide these info:
-Your phone model no
-Your old ROM details
-the detail of the firmware you were trying to flash via Odin.
Swyped from my Samsung Galaxy SII
was that the information you needed?
Have you tried flashing a stock firmware and factory reset?
Sent from my brain using telekinesis
Hi
Basically rencently i got a used samsung s2 and its showing me on,
About Phone:
Model N: GT I9100
Android V: 2.3.3
Baseband V: Unknown
Kernal V: [email protected] #2
Build N: GINGERBREAD.BVKG3
STATUS:
MY Phone Number: Unknown
Network: Unknown
Emei: Unknown
Emei SV: Unknown
So i have tried 2 apps from market and none are working and i have backup the EFS and re-used it and still did not fix the problem.
I was wondering if i installed a different ROM that might fix it but for this i need someone to redirect me to a rom that will work with the version of my phone because i am kind new into this.
Thanks
Have you tried restoring the EFS backup with kTool?
23732 said:
Have you tried restoring the EFS backup with kTool?
Click to expand...
Click to collapse
Yes i have but still does nothing after reboot.
Get a root file explorer from market and see if there was an automated back up made whilst previous owner was flashing roms/kernels. You may be lucky, otherwise it's a paid repair at a service centre
Sent from my GT-I9100 using xda premium
HANDSY said:
Get a root file explorer from market and see if there was an automated back up made whilst previous owner was flashing roms/kernels. You may be lucky, otherwise it's a paid repair at a service centre
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I have just checked and no there is no backup only my efs backup that i done with ktool that is there, but i have restored and still nothing.
I was wondering if i done a hard reset would it work?
Or if i installed a new ROM that works for my phone version that might work?
BoldBiker said:
I have just checked and no there is no backup only my efs backup that i done with ktool that is there, but i have restored and still nothing.
I was wondering if i done a hard reset would it work?
Or if i installed a new ROM that works for my phone version that might work?
Click to expand...
Click to collapse
I don't think it will as the efs folder is unique to the handset not the ROM installed. There are few threads offering fixes with mixed results. Search and try them. All the best.
Sent from my GT-I9100 using xda premium
Flash original firmware from ODIN.. It ll surely revert back I also had NO IMEI NO baseband..
Prashanthme said:
Flash original firmware from ODIN.. It ll surely revert back I also had NO IMEI NO baseband..
Click to expand...
Click to collapse
Yes that is what i have been trying but i don't know where to get the firmware i have looked in sam website and i cant get the version for my phone from Orange.
If you could please post here the link for the firmware that would be great.
Thanks
I need this firmware
BVKG3:
Firmware info: PDA:BVKG3|PHONE:BVKG2|CSCRAKG3
BVKG3 Stock Kernel:
Password: [email protected]
But the links are dead, if someone can get me a backup would be great full
BoldBiker said:
Yes that is what i have been trying but i don't know where to get the firmware i have looked in sam website and i cant get the version for my phone from Orange.
If you could please post here the link for the firmware that would be great.
Thanks
I need this firmware
BVKG3:
Firmware info: PDA:BVKG3|PHONE:BVKG2|CSCRAKG3
BVKG3 Stock Kernel:
Password: [email protected]
But the links are dead, if someone can get me a backup would be great full
Click to expand...
Click to collapse
http://devsrom4android.blogspot.in/2012/04/uk-orange-samsung-galaxy-s2-official.html try this buddy... Its not BVKG3
I saw your other thread asking for a copy of this. This is ancient as far as firmwares go, you've got pretty much zero chance of getting your hands on it unless someone who has a copy happens to read your threads on here (seriously unlikely).
Is there a specific reason why you need such an out of date firmware; surely you can just use the latest stock firmware for your carrier/country ?
MistahBungle said:
I saw your other thread asking for a copy of this. This is ancient as far as firmwares go, you've got pretty much zero chance of getting your hands on it unless someone who has a copy happens to read your threads on here (seriously unlikely).
Is there a specific reason why you need such an out of date firmware; surely you can just use the latest stock firmware for your carrier/country ?
Click to expand...
Click to collapse
Sorry but you must be mistaken me for someone else because this is my only thread about this phone that i have.
Also i have tried downloading the stock firmware for orange uk which is Firmware info: PDA:BVKG3 and i have searched on google and lot more websites and all the download links i get they are all dead so that is why i open a thread to try and get help on the community here.
Really ? What's this then ?
I understand what you're saying, but what I'm saying is your chances of getting hold of this particular firmware are close to zero.
Given the almost impossibility of getting it, why wouldn't you just use the latest available stock firmware for your carrier/country if you need to go back to stock ?
because i cant find the firmware were the download link.ent dead.
I understand what you're saying, but what I'm saying is your chances of getting hold of this particular firmware are close to zero.
Get the PC version of Checkfus (search for it on here/Google). You to choose your phone model, carrier & country in pulldown boxes, and it will enable you to download the latest stock firmware which you can flash in Odin.
MistahBungle said:
Get the PC version of Checkfus (search for it on here/Google). You to choose your phone model, carrier & country in pulldown boxes, and it will enable you to download the latest stock firmware which you can flash in Odin.
Click to expand...
Click to collapse
I have downloading the firmware now i will do a backup to make sure and then i will post here.
not working at all i download this one I9100BVLPH_I9100ORALPH_I9100BVLPE_HOME.tar.md5 which is the one for my phone Orange and i installed it on Odin and now it wont let me do anything well it turns on and all but the screen is black does not have unlock sliding features.
All i can do is go to the top bar and turn on the wireless and all the features there.
I need help guys
So i noticed something on recovery mode this is all the options i get:
reboot
apply update from external storage
wipe data/factory reset
wipe cache partition
apply update from cache
where is the options gone for me to install from memory card?
Your problem will not be fixed flashing roms. You need to search this forum for solutions. Even then it's not certain it will repair your phone, often only solution is a repair centre. Try this one to start with. http://forum.xda-developers.com/showthread.php?t=1264021
All the best
Sent from my GT-I9100 using xda premium
I installed firmware not rom, but my problem is that i cant see no menu or anything all i can do with my phone is push the top bar down and turn wifi and the other options.
Guys after i installed the firmware for orange my phone turns on but no menus just black screen all i can do with the phone is drag the topbar down and turn on and off the features like wifi, etc
Enter CMW wipe data/factory reset, wipe dalvik cache and format system. Re-flash the firmware.
Sent from my GT-I9100 using xda premium
I all,
I am having problems with the CSC on my wife's SGS3. She was sent a German version S3 (twice) as a replacement for a damaged phone from her insurance company.
This has a CSC code of DBT
As the CSC list (using *#272*imei#) only contained DBT, I flashed the phone using odin with official LLA-JellyBean (CSC-Code BTU) so I could put it as a UK handset.
Now when I plug it into kies i get this:
YOUR DEVICE'S CURRENT FIRMWARE VERSION IS NOT SUPPORTED TO UPDATE FIRMWARE VIA KIES
CURRENT FIRMWARE VERSION: PDA:LLA / PHONE:LLA / CSC:LLA (DBT)
(Cant remember off hand what it was but it wasn't LLA prior to the flash)
I have tried all i can think of to correct this.
When i run the *#272 thing it comes up:
USSD CODE RUNNING
then:
UNKNOWN APPLICATION
I have tried the Samsung Galaxy S / S2 /S3 CSC app from play store, again I get message when I run it:
UNKNOWN APPLICATION
I have gone into recovery mode and get the following (in yellow beside the droid icon):
#MANUAL MODE#
--APPLYING MULTI CSC
APPLIED THE CSC-CODE: DBT
SUCCESSFULLY APPLIED MULTI-CSC
I have also tried WIPING DATA CACHE and FACTORY RESET from recovery mode
None of this has made any difference, (all done in the order as I have listed it above) please could somebody point me in the right direction before I pull out what remaining hair I have left.
Download the latest stock full rom for UK and Europe XXEMB5 from one of the below and flash via odin. then carry out a factory reset.
XDA Thread
Sammobile
ag4751 said:
Download the latest stock full rom for UK and Europe XXEMB5 from one of the below and flash via odin. then carry out a factory reset.
XDA Thread
Sammobile
Click to expand...
Click to collapse
I have tried this but the flash failed. I have also tried to re-flash the LLA version I had put on previously
Odin says the COM Port cannot be opened
Cougar-UK said:
I have tried this but the flash failed. I have also tried to re-flash the LLA version I had put on previously
Odin says the COM Port cannot be opened
Click to expand...
Click to collapse
Re-install Kies and USB drivers first.
djembey said:
Re-install Kies and USB drivers first.
Click to expand...
Click to collapse
Thank you djembey. Rather than uninstall kies and risk losing backups (couldnt be bothered to find files and move them) including for my own S3, I ran the flash from my wife's laptop. I plugged phone in first so drivers installed then phone flashed successfully.
However the CSC has remained DBT even though I flashed the BTU version
Cougar-UK said:
Thank you djembey. Rather than uninstall kies and risk losing backups (couldnt be bothered to find files and move them) including for my own S3, I ran the flash from my wife's laptop. I plugged phone in first so drivers installed then phone flashed successfully.
However the CSC has remained DBT even though I flashed the BTU version
Click to expand...
Click to collapse
I think there is somewhere a thread with flashable csc packages or you could try the csc changer app (will format your phone though).
This might help: http://forum.xda-developers.com/showthread.php?t=2080181
Sent from my GT-I9300 using xda app-developers app
chrismast said:
I think there is somewhere a thread with flashable csc packages or you could try the csc changer app (will format your phone though).
This might help: http://forum.xda-developers.com/showthread.php?t=2080181
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thank you. I have had a look through the threads you referred to but it looks a bit confusing (though could just be how its written). Think I'll leave phone as is.
Hey guys,
I've spent the better half of 8 hours looking on multiple forums/downloading roms/attempting to flash my cousin's GT-I9300.
I attempted KIES update and emergency maintenance and they both start freezing.
I attemped odin with a multitude of roms with the model & serial given by kies (PDA:LLB / PHONE: LLA / CSC: LL3)
I've even downloading android commander to no avail.
I've successfully rooted and flashed my i747 multiple times so i'm somewhat familiar with the odin flash process, but this is a bit unsual.. and frustrating lol.
The phone is in reboot cycle (loops after the samsung logo animation), won't let me access recovery but will let me get into odin recovery.
Odin seems to have failed at every stock rom flash...
ANY help?
Riktar said:
Hey guys,
I've spent the better half of 8 hours looking on multiple forums/downloading roms/attempting to flash my cousin's GT-I9300.
I attempted KIES update and emergency maintenance and they both start freezing.
I attemped odin with a multitude of roms with the model & serial given by kies (PDA:LLB / PHONE: LLA / CSC: LL3)
I've even downloading android commander to no avail.
I've successfully rooted and flashed my i747 multiple times so i'm somewhat familiar with the odin flash process, but this is a bit unsual.. and frustrating lol.
The phone is in reboot cycle (loops after the samsung logo animation), won't let me access recovery but will let me get into odin recovery.
Odin seems to have failed at every stock rom flash...
ANY help?
Click to expand...
Click to collapse
I assume with odin recovery you mean download mode? If so try to flash a stock ROM (maybe first a version that is from your region, you can find them on sammobile.com) via Odin and make sure that KIES is turned off (also from task manager, even better uninstall it). Do you have any error message showing up when you try to flash with Odin?
Try the flash again, and if it loops, try booting recovery and doing a reset......yes,I know you said you can't get into recovery, but just try after the flash
Also remember it can take a few minutes to boot after a flash, so be patient and give it a chance
---------- Post added at 07:29 AM ---------- Previous post was at 07:28 AM ----------
Also what does the Odin log say/what stage is it failing at?
chrismast said:
I assume with odin recovery you mean download mode? If so try to flash a stock ROM (maybe first a version that is from your region, you can find them on sammobile.com) via Odin and make sure that KIES is turned off (also from task manager, even better uninstall it). Do you have any error message showing up when you try to flash with Odin?
Click to expand...
Click to collapse
slaphead20 said:
Try the flash again, and if it loops, try booting recovery and doing a reset......yes,I know you said you can't get into recovery, but just try after the flash
Also remember it can take a few minutes to boot after a flash, so be patient and give it a chance
---------- Post added at 07:29 AM ---------- Previous post was at 07:28 AM ----------
Also what does the Odin log say/what stage is it failing at?
Click to expand...
Click to collapse
I've attempted to flash maybe 7-8 different roms. My cousin won the gt i9300 at a raffle overseas so thats why im unsure of what exact country it is. Is there a definitive way of finding which country exactly? I do know it was an unbranded rom and fully unlocked because he's been using it here (w/ straighttalk) for the past 6 months or so just fine i even flashed jellybean 4.1.1 when it was first released (via kies).
When I try to and get the version from kies it tells me (PDA:LLB / PHONE: LLA / CSC: LL3) but no country.. so idk if there's a definite way of finding this out. I'm downloading ICS rom and gonna try and roll back the rom as i've read some people did that and it worked.
Once i bring up download mode it says on the top (ODIN MODE) and binary download count YES (1 count) and rom as custom. I attempt to flash Odin it always fails right after system.img. never gets past i've tried to do multiple attempts(5-6) per rom but no luck yet. never gets past "downloading... do not turn off) phase.
thanks alot for the assistance guys!
CSC more or less tells you the country .
Overseas first question then is it actually I9300 look under the battery .
jje
JJEgan said:
CSC more or less tells you the country .
Overseas first question then is it actually I9300 look under the battery .
jje
Click to expand...
Click to collapse
Model Number under battery says GT-I9300 same thing that's prompted during kies for emergency recovery.. which downloads but ends up not recognizing it. Odin flash on the other hand recongizes it when i plug it but keeps failing.
LL3 is from Pakistan http://www.sammobile.com/firmwares/1/?model=GT-I9300&pcode=PAK#firmware
Try downloading any unbranded firmware cause it's pretty much it's the same thing. You can always change the csc after you flash your phone.
or Download the right firmware on the country on which you are right now.
Then follow the youtube guide here on how to properly flash it: http://forum.xda-developers.com/showthread.php?t=1646610. You can just skip the unrooting part i guess.
EDIT:
Annandale is in UK right? On the 2nd link that i gave you the first firmware there is from UK so i think you can flash that one.
JJEgan said:
CSC more or less tells you the country .
Overseas first question then is it actually I9300 look under the battery .
jje
Click to expand...
Click to collapse
SignetSphere said:
LL3 is from Pakistan http://www.sammobile.com/firmwares/1/?model=GT-I9300&pcode=PAK#firmware
Try downloading any unbranded firmware cause it's pretty much it's the same thing. You can always change the csc after you flash your phone.
or Download the right firmware on the country on which you are right now.
Then follow the youtube guide here on how to properly flash it: http://forum.xda-developers.com/showthread.php?t=1646610. You can just skip the unrooting part i guess.
Click to expand...
Click to collapse
Yea i though it was from pain (LL3 rom listed on another thread) but i then foudn the PAK version so that's the one i downloaded but the 4.1.2 version. I downloaded 4.1.1 and 4.0 (ics) version so i'll give those a try too.
Phone specs as they appear on the back are :
Model: GT-I9300
FCC ID: A3LGTI9300A
SSN: -I9300GSMH
S/N: RF1C63KJ4RL
Okay goodluck on flashing your S3 I'm gonna sleep now lol. 12:11am here.
Gnite, gonna keep messing with this and see what happens.
Edit: Annandale. Virginia USA sry for the confusion.
Just tried the ICS and the 4.1.1 rom still fails at systems.img ... any ideas what else it could be?
Riktar said:
Just tried the ICS and the 4.1.1 rom still fails at systems.img ... any ideas what else it could be?
Click to expand...
Click to collapse
see this: http://checkrom.com/threads/nand-write-start-stuck-in-odin.920/ I hope that can help you.
thanks for the info! that first problem stated on there looks the exact problem i'm having, I'll try it asap and check back in with an updated.
Riktar said:
thanks for the info! that first problem stated on there looks the exact problem i'm having, I'll try it asap and check back in with an updated.
Click to expand...
Click to collapse
the pit files that was posted there was for the 64gb one if you are using the 16gb one so I've uploaded the pit files for all SIII storage models.
just take note of this:
GT-I9300_mx_20120220.pit = Galaxy S3 of 16 Gb
GT-I9300_mx_20120322.pit = Galaxy S3 of 32 Gb
GT-I9300_mx_20120329.pit = Galaxy S3 of 64 Gb
And make sure to follow the the instructions there. Likewise credits goes to the posters there and not me lol.
SignetSphere said:
see this: http://checkrom.com/threads/nand-write-start-stuck-in-odin.920/ I hope that can help you.
Click to expand...
Click to collapse
SignetSphere said:
the pit files that was posted there was for the 64gb one if you are using the 16gb one so I've uploaded the pit files for all SIII storage models.
just take note of this:
GT-I9300_mx_20120220.pit = Galaxy S3 of 16 Gb
GT-I9300_mx_20120322.pit = Galaxy S3 of 32 Gb
GT-I9300_mx_20120329.pit = Galaxy S3 of 64 Gb
And make sure to follow the the instructions there. Likewise credits goes to the posters there and not me lol.
Click to expand...
Click to collapse
Thanks for the follow up and thorough info! i'll make a note of that when i do this later.
I installed the pit file and it installs properly, says Reset then i put the phone back into download mode and try to upload the roms (PAK) 4.1.2 and 4.1.1 as well as the latest 4.0.4 and all fails. this time it fails after NAND Write.. so idk... >< i'm gonna try and download an older version of ICS (probably end up downloading all 5 ICS roms on samsung site. I'm looking for a stock kernel as well to follow what the additional instructions of the guy on the link posted but i can't seem to get my hand on a kernel, anyone know a link to a stock gt-i9300 kernel?
in the meantime i'll start downloading the ics roms.
Riktar said:
I installed the pit file and it installs properly, says Reset then i put the phone back into download mode and try to upload the roms (PAK) 4.1.2 and 4.1.1 as well as the latest 4.0.4 and all fails. this time it fails after NAND Write.. so idk... >< i'm gonna try and download an older version of ICS (probably end up downloading all 5 ICS roms on samsung site. I'm looking for a stock kernel as well to follow what the additional instructions of the guy on the link posted but i can't seem to get my hand on a kernel, anyone know a link to a stock gt-i9300 kernel?
in the meantime i'll start downloading the ics roms.
Click to expand...
Click to collapse
Get perkas file stash from Play store, I'm sure it has stock kernel
Edit....just checked, plenty of stock kernels to choose from
Andi has some handful of kernels here http://www.boeffla-kernel.de/index.php/2012-10-31-06-13-16/viewcategory/18 I just don't know if he has the kernel you are looking for.
thanks for links guys! i'll look up one i need and download it and check back in later.
Riktar said:
I installed the pit file and it installs properly, says Reset then i put the phone back into download mode and try to upload the roms (PAK) 4.1.2 and 4.1.1 as well as the latest 4.0.4 and all fails. this time it fails after NAND Write.. so idk... >< i'm gonna try and download an older version of ICS (probably end up downloading all 5 ICS roms on samsung site. I'm looking for a stock kernel as well to follow what the additional instructions of the guy on the link posted but i can't seem to get my hand on a kernel, anyone know a link to a stock gt-i9300 kernel?
in the meantime i'll start downloading the ics roms.
Click to expand...
Click to collapse
I had a similar problem, my phone just froze in the middle of a phone call, had to pull out battery, and when i tried to turn it on, it wouldn't pass the second "SAMSUNG" logo, just stayed there forever, with the blue light (Official JB 4.1.2 - not rooted)... Anyway, after 3 days of trying, downloaded bunch of firmwares, but all of them gave me the infamous "Complete(Write) operation failed". This is how I MANAGED to revive my i9300 16Gb Int:
1.Open ODIN, load ONLY the pit file corresponding to your phone (In my case i9300 16Gb Int'l - GT-I9300_mx_20120220.pit), check "Repartition" and "F.Reset Time" and hit "Start".
- If this step goes OK (All threads completed. (succeed 1 / failed 0))
2. Click on the "Reset" button in Odin (or close and re-open it), in PDA select "recovery-cwm-touch-6.0.1.2-i9300.tar", make sure only "F.Reset Time" and "Auto Reboot" are checked, and flash it. If everything goes OK, you should now have CWM instead of Stock recovery.
3. Take any microSD card, any size, and put THIS file on the root of the microSD using a card reader or whatever you prefer - but be careful, copy the zip as it is - do not unzip it.
4. Insert the memory card in the phone, enter recovery*, and select "Install zip from External Storage" and choose the file you put on the root of the card (by the way, it's a 4.0.4 downgrade bootloader), it should flash in a second, the phone will restart, and that's it!
5. Download and flash 4.0.4 Stock FW using Odin (i used "I9300XXBLH1_OXEBLF1.zip"), everything should go OK, and the phone will be bootable again.
*(my phone didn't wanted to enter recovery the old fashioned way using 3-button combo, but i managed to enter recovery from charging mode, by connecting the charger on a switched off phone, and as soon it starts charging press Vol Up + Home + Power, and when the FIRST Logo (Galaxy S III GT-I9300) appears, let go of the power button, keep pressing the Vol Up + Home, and it enters recovery).