Apparently there is one safe and working way to un-brick the GT-I9001. This procedure has been tested on a soft-bricked device with a stock unbranded ROM.
- Download the WORKED2.rar package (mirror 1, mirror 2);
- Download Odin Multi Downloader version 4.43;
- After expanding the WORKED2.rar archive, press the OPS button and select the AriesVE.ops file from the uncompressed archive;
- Mark the One Package option, press the One Package button on the bottom of the window and select the recovery-clockwork-6.0.1.0-ariesve.tar.md5 file;
- Put your device in Download Mode by pressing Volume Down + Home + Power and plug it to your PC;
- Make sure to have installed the correct drivers and the phone should be recognised by Odin (the top left rectangle becomes yellow) and press the Start button.
This process could take from 8 to 30 minutes to finish, with an average time of 15 minutes. After that you should have your device back with the same settings, applications and files you had before the brick. Moreover you should have installed a working version of the ClockworkMod Recovery.
Using an Odin ROM to fix your device:
If your device is still not working correctly after the steps described above. You should try to install a stock ROM and do a factory reset.