You've said there is no way then I guess it's no way, then.
If you need help, do list what you have done so gurus here know what went wrong and probably provide solution for you.
Okey now i have time to tell you.
First,I'm running Shostock2 v1.1. I have run it for 1 weeks without problems.
Yesterday when I use,it freezes on the home menu. I leave it for 1 hours but it still freezes so I decided to reboot. I pull out the battery and power it again,but it stack at the "Samsung galaxy s2" logo. I tried to access CWM but everytime I use the combo key "volume UP+ DOWN + POWER" it restart to the Samsung logo and freeze. Fortunately I can access the DOWNLOADING MODE so i decided to flash back to stock rom. I go step by step in the topic "How to Prepare Your Phone to Return to the Store or for Warranty Replacement" but it always freezes.
The code in the ODIN is end at
<ID:0/007> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> I777UCKH7-REV02-home-low-CL503881.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Odin v.3 engine (ID:7)..
<ID:0/007> File analysis..
<ID:0/007> SetupConnection..
<ID:0/007> Initialzation..
<ID:0/007> Get PIT for mapping..
<ID:0/007> Firmware update start..
<ID:0/007> Sbl.bin
<ID:0/007> NAND Write Start!!
or
<ID:0/007> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> I777UCKH7-REV02-home-low-CL503881.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Odin v.3 engine (ID:7)..
<ID:0/007> File analysis..
<ID:0/007> SetupConnection..
<ID:0/007> Can't open the serial(COM) port.
<OSM> All threads completed. (succeed 0 / failed 1)
I have tried all the stock rom in the topic with no root or root but it still freezes at the step NAND Write Start. I tried the Heimdall but it says that "Firmware.xml is missing in the package". I tried the Odin - one click but it still freezes at Cache.img or factory.imf.
Heimdall flash error:
"Initialising connection...
Detecting device...
ERROR: Failed to access device. libusb error: -12"
Can anyone help me? I haven't slept last night to search the solution but it still nothin I can do