Very safe. Thats what SC uses to flash your phone back to stock

Is it after the ICS update. A few user have already reported kies dun work after ICS update.

You can download from CheckFus:
http://www.littledoremi.com/official-malay...i-i9100-i9100g/

Hi - this is issue with Samsung driver on win7. Google how to reinstall i9100g driver with win 7 and follow steps. I had the same problem before upgrade and once the re-install complete, the problem went away (i reboot comp again after re-install driver just to be sure). MY I9100G is Stock ROM ICS 4 now from Samsung and no intention to go Custom ROM.

Upgrading Stock ROM from KIES is painful and needs patience as server keeps disconnecting or time out. I did mine yesterday night around 12am and there were still some disconnections and timeouts but eventually after about 7 times, it completed the download and started the upgrade ICS ROM process.

The other thing to check is to make sure you have disabled Debugging mode in Apps>Development>Debugging - if not, KIES will not recognise your I9100G when you plug into windows.

IRO the connection to win7 issue on I9100G after ICS upgrade, I did not experience issue with KIES when I did a backup after the upgrade. Maybe can try the re-install driver solution and see if it helps.

Please always do a backup first before you upgrade eventhough it is suppose to be non-wipe upgrade. You never know what can happen.

Overall, ICS upgrade is worthwhile (it took a while to complete though) to make i9100G a smoother experience than GB when multitasking. Good job by Samsung dev team although there are still a lot of room for improvement when compared to the custom ROMS.