[Q] Captivate Boot Loader Brick?

rstrube

Member
Jul 27, 2010
5
0
0
Hi Everyone,

I had previously been running the stock I9000 JK3 ROM on my Captivate with xcal's reoriented kernel. Today I decided to install the I9000 JL2 Rom from samfirmware.com.

I started ODIN, entered Download Mode, and flashed the ROM (in the PDA section) with no problem. After the flash had completed, the phone attempted to reboot, but there was nothing but a black screen. I tried every way I know to get into Download mode but nothing works. I don't even get the Phone--!--Computer image that I've gotten in the past when I've messed up a flash.

I've read that this kind of brick occurs when the boot loader is corrupted, and that the only way to fix it is to use a RIFF JTAG box. My question is: what did I do wrong? I flashed many ROMs before, all through ODIN, but was always able to get back to stock if necessary.

My research suggests that it has something to do with sbl.bin. Can someone enlighten me? How can I tell if a ROM will mess up my bootloader? Do ROMs that mess up bootloaders contain the sbl.bin file?

Any advice or information would be greatly appreciated.
 

avgjoegeek

Senior Member
Sep 17, 2010
1,316
101
0
Junction City
If your getting the phone / computer screen you should still be able to restore.

Use the following method to get into DOWNLOAD mode and then Odin 1 click back to stock.

  • Take out the battery,SIM, and external SDCard
  • Turn on Odin JH7 1 Click Back to Stock
  • Plug in your USB cable
  • While holding down the Volume +/- Button place the batter back in.
  • If you get the gray battery charging signal - you need to attempt it again. Should go into DOWNLOAD mode and you can restore your phone back to stock.

The SBL.bin is bad mojo if you fubar it as it has important things like being able to use your buttons to get into the different modes (download/recovery). I don't know what else it controls as I'm not a developer.
 
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rstrube

Member
Jul 27, 2010
5
0
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Thank you so much for the information. Unfortunately, I do not see the Phone--!--Computer icon, and I confirmed that the ROM that was flashed did indeed contain an SBL.bin file. The boot loader is most certainly bricked.

I really think a warning about the SBL.bin file should be stickied somewhere prominent, so other people don't make the same mistake that I did.

Thanks Again
 

gtchapin

New member
Oct 7, 2010
3
0
0
It works for me

If your getting the phone / computer screen you should still be able to restore.

Use the following method to get into DOWNLOAD mode and then Odin 1 click back to stock.

  • Take out the battery,SIM, and external SDCard
  • Turn on Odin JH7 1 Click Back to Stock
  • Plug in your USB cable
  • While holding down the Volume +/- Button place the batter back in.
  • If you get the gray battery charging signal - you need to attempt it again. Should go into DOWNLOAD mode and you can restore your phone back to stock.

The SBL.bin is bad mojo if you fubar it as it has important things like being able to use your buttons to get into the different modes (download/recovery). I don't know what else it controls as I'm not a developer.
Wow it works for my captivate, after a failed odin update the captivate was death black screen at all, with these procedure I can reflash with odin. thanks a lot.