I have a simular problem, do you think you can help me also.
Problem after failed firmware update.
I tried to Update my Samsung Galaxy S2 (GT-I9100G) using Odin 1.85
the Phone shut down before finishing the update. At that point I could not start my S2 the only picture I got was a black screen with a phone a “!” in a yellow triangle and a computer. I tried to upload the firmware again with Odin but it failed every time. I tried using Kies but it could not find the phone. I googled the problem to find a solution that could work and I tried several solutions without luck. But at last i tried the following advice see link:
xda-developers - View Single Post - [Q] Firmare upgrade encountered an issue - Am i done for?
I downloaded the .tar file that was referred to:
and Odin worked and this file was downloaded. The problem is that now i only get the start page with the text Samsung Galaxy S2 with a yellow triangle "!" in the bottom. I tried plugging it to the USB port on my computer but it can't see the phone anymore and Odin and Kies can't see it so I can't upload another firmware.
Please help, I am desperate