I was updating the firmware on kies for my galaxy s and it got half way through and then said error and is no frozen on the downloading 'do not turn off' screen, I have taken out the battery and put it back in, and tried the hard reset, which leads me to a phone symbol, a computer symbol and an error symbol in the middle, help plzzzzzz
I had the same problem (except I didn't use Kies, I had the problem after the first OTA Update)
Here are the steps I did to get my device back in a usable state:
Keep in mind, this will revert your phone to a rather old (android 2.1) version of TouchWiz. You may want to see if there are newer ODIN files available.
Also, I take no responsibility if this does not work for you, or your phone explodes in the process. These are the steps I took, and they worked for me. Good Luck.
Download JFD tar
Open Odin, plug in your phone, then put it into download mode.
# reboot download
If you can't get that to work, try how i mention below (phone off, battery out, hold vol+ & vol-), or try searching these forums for "vibrant download mode" you will find other things that "work" for people
load the PIT file in appropriate area.
Click start, let it finish.
Now, pull your battery and unplug USB
bring the phone to download mode again
re-run ODIN as mentioned above
Don't give up if this doesn't work. If you get the device to boot, even if it is to the "Error Screen", there is a possibility of recovering.
You should experiment with rebooting via the various key combinations / battery pulls / USB plugged-in-ness below first. Sometimes the phone can be jolted out of the bad mode it's in by doing that. If the firmware was partially written though, you'll have to do Odin as Ryan suggests.
I basically agree with Ryan's answer, but I'd use at least Odin 1.5. Here's Odin 1.7, it includes the 512 PIT file.
For the GT-i9000 (international Galaxy S), get firmware from this XDA thread. You probably want the newest for your region (excluding Gingerbread, since it hasn't been officially released).
I also recommend checking re-partition in Odin. This will wipe 100% of your data, however.
I think the easiest way to get into Download Mode is through key combinations. For the i9000, just hold Power + VolDown + Home until the phone reboots, then let go of Power only; after a second you'll get to a yellow triangle with an Android in it. For the Vibrant, remove the battery, plug into USB, hold VolDown + VolUp, and insert the battery.
and the pc doesn't even recognise it (i've tried the volume and power buttoms but sure it didn't work because the phone didn't turn on) when i connect it to pc using kies it gives me a black screen on my phone with the drawing of my phone and pc with "!" between them but as i mentioned b4 the pc doesn't feel a thing plzz help me
I'd try removing the battery and plugging it into USB. Then, while holding both Volume Down and Home, insert the battery and wait. This should get you into Download Mode (screen with yellow triangle) and Kies should be able to update you.
If this doesn't work try other key combos -- both volume buttons, or VolUp+Home. If they don't work either, disconnect from USB and put the battery in. Then while holding one of the key combos, click the Power button and wait. Yank the battery and reinsert to try a different combo if need be.