Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,730,761 Members 41,649 Now Online
XDA Developers Android and Mobile Development Forum

[Q] Hard Bricked Samsung Galaxy S3 AT&T SGH-i747 - HELP!!

Tip us?
 
Greenhope47
Old
#1  
Junior Member - OP
Thanks Meter 0
Posts: 2
Join Date: Jul 2014
Question [Q] Hard Bricked Samsung Galaxy S3 AT&T SGH-i747 - HELP!!

Noob here (as you can tell by my problem)
Okay so here's the full story, I rooted my phone. It was on 4.4.2 when I first rooted it. I found the LiquidSmooth ROM online and I wanted to flash it into my phone. After hours of research I finally flashed it successfully. I fell in love with UI and everything. But this is where the real stuff happens. I didn't find it very attractive anymore. So I tried wiping the whole phone hoping it'd revert back to it's original settings, I hoped wrong. It still had the ROM so I went online and I found this damn file that I thought would revert it back to normal. Turns out it not only took back to normal without it being rooted, but it downgraded to 4.0.4 and then my problems began from here. I had no signal so I couldn't update to the latest firmware so I rerooted the device and I tried flashing CM11 so I can get to 4.4.2 again. But the bootloader would not let me do it while in the recovery mode. So I researched how to unlock the bootloader. I found what is called EZUnlock, I downloaded the .apk file and installed it into the device, unlocked the bootloader and then used ROM Manager to boot into Recovery Mode. The screen went black and bam! Did not turn on after 5mins. I started to press the power button but to no avail, it would not turn on. I have searched ways to unbrick my Samsung Galaxy S3 but none of the threads seem to connect to what is going with my phone. So I have decided to make a thread to get specific help on my problem. Please, I beg you, if you are reading this now please help me out! I have no money to go out and buy a new phone. Even this phone wasn't affordable. I beg you to help me out here. I am in desperate need. I NEED my phone.
 
audit13
Old
#2  
audit13's Avatar
Senior Member
Thanks Meter 344
Posts: 2,144
Join Date: Jun 2012
Not sure why you needed to unlock the bootloader since the s3 bootloader is not locked.

Did you try using the de-brick method using an SD card?
 
Greenhope47
Old
#3  
Junior Member - OP
Thanks Meter 0
Posts: 2
Join Date: Jul 2014
Quote:
Originally Posted by audit13 View Post
Not sure why you needed to unlock the bootloader since the s3 bootloader is not locked.

Did you try using the de-brick method using an SD card?
Yeah I read about that, but I had not known that until after I tried looking for Unbricking methods. And yes, I tried it with my 8GB SD card...But nothing is happening. I can't afford to buy a JTAG for this phone either. Do I really have to go out and buy myself a 16GB Class 10 SD Card to say for sure if my phone will work again or not?
 
audit13
Old
(Last edited by audit13; 5th July 2014 at 09:54 PM.)
#4  
audit13's Avatar
Senior Member
Thanks Meter 344
Posts: 2,144
Join Date: Jun 2012
Quote:
Originally Posted by Greenhope47 View Post
Yeah I read about that, but I had not known that until after I tried looking for Unbricking methods. And yes, I tried it with my 8GB SD card...But nothing is happening. I can't afford to buy a JTAG for this phone either. Do I really have to go out and buy myself a 16GB Class 10 SD Card to say for sure if my phone will work again or not?
I have never tried the de-brick method but it seems you need to use a very specific brand and size of sd card. Maybe it needs to be 16 GB because that's what the i747 has internally.
 
DocHoliday77
Old
#5  
DocHoliday77's Avatar
Recognized Contributor
Thanks Meter 5152
Posts: 7,353
Join Date: May 2011
Location: HuntsVegas!!!

 
DONATE TO ME
Thr sdcard has to be at least 16gb. 32gb sdcards will work too. The higher the cards class rating the better, Class 6 and up seem to have the highest success rates, but I have seen it work on class 2 and 4 cards as well.
Unfortunately, there are bricks thst cannot be recovered using this method, depending on what partitions got screwed up. I'm not sure which got messed up on yours, but there is a chance it messed with something the debrick method cant fix...
In that thread there are debrick.img files posted throughout the last few pages. Try any that are for your device.

Good luck!
 
pcshano
Old
#6  
Senior Member
Thanks Meter 58
Posts: 380
Join Date: Dec 2012
Quote:
Originally Posted by DocHoliday77 View Post
Thr sdcard has to be at least 16gb. 32gb sdcards will work too. The higher the cards class rating the better, Class 6 and up seem to have the highest success rates, but I have seen it work on class 2 and 4 cards as well.
Unfortunately, there are bricks thst cannot be recovered using this method, depending on what partitions got screwed up. I'm not sure which got messed up on yours, but there is a chance it messed with something the debrick method cant fix...
In that thread there are debrick.img files posted throughout the last few pages. Try any that are for your device.

Good luck!
I used my 64gb sdcard(class 10) and it worked too
just make sure if you want to reuse the sdcard like normal sdcard, you need to reformat it with your phone instead of your computer, cuz somehow if you format it with your pc it will only show 64mb instead of 64gb lol...
and to my knowledge, sdcard debricking will work with any hard bricked bootloader problem (been there, done that), so it should work for you too unless you did something wrong such as wrong version of debrick.img
Phone: Samsung Galaxy S3 I747
Network: T-Mobile
Recovery: TWRP latest
Rom: some AOSP
 
Larry2999
Old
#7  
Senior Member
Thanks Meter 74
Posts: 354
Join Date: Feb 2014
Location: Atlanta, GA
Quote:
Originally Posted by Greenhope47 View Post
Yeah I read about that, but I had not known that until after I tried looking for Unbricking methods. And yes, I tried it with my 8GB SD card...But nothing is happening. I can't afford to buy a JTAG for this phone either. Do I really have to go out and buy myself a 16GB Class 10 SD Card to say for sure if my phone will work again or not?
That's correct. You need min 16Gb (high quality) SD card. What we are trying to do is simulate the internal SD card of the device itself so your debrick card needs to be, at least, or greater than the internal card. I'm somewhat surprised by the sequence of events especially how you ended up on ICS 4.0.4 - unless that was the last official stock ROM your device had before you went custom. Also, EZ-Unlock wouldn't normally cause a hard brick unless you were on the 4.3 MJB bootloader or higher in which case, the result is usually a guaranteed hard brick - similar to what happened. Probably you ended up with the 4.3 MJB bootloader one way or other.

The debrick method should work for you in this case from what you've described. If you haven't seen it already, the definitive thread on this subject is given below .... All the instructions and files/images you need are available on the first page.

http://forum.xda-developers.com/show....php?t=2549068

Please note that once you have been able to get the phone to boot from the SD card, you need to work your way up the food chain to a full firmware restoration. In this case, only a full stock restore to 4.3 would get the phone booting normally and on its own. You can do a full stock restore via custom recovery.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


XDA PORTAL POSTS

Blast Those Flags with Knock the Flags

Lately, we have seen a rather drastic shift in the world of mobile device gaming. The infamous Angry … more

Hide Numbers on Your SMS and Call Logs with Reflection

How many times have you given your device to someone else in order to show them a … more

Implement Split View in Your LG G2 KitKat Rom with Automated Installer

Some of you may have remembered a story on the Portal a few weeks back … more

Cast Your Device Screen the Way it Was Meant to be with Second Screen

Not too long ago here on the XDA Portal, we covered how Google had made … more