I tried to download Ice Cream Sandwich for my phone (Samsung Galaxy s2 ) according to the cnet tutorial . During the update with odin , my computer said that the update failed. My phone is saying "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again."
When I try to go to download mode again it said battery low in red color can't go for download mode.I have plunged in my phone to power for 3-4 hours but the battery did not charge at all. Also I have tried to charge with the USB but it was same. Today when I plug it to USB it shows the message "Firmware upgrade ...." and it restart after one minute.
I just wanna restore my phone to default settings or install any version of android that I can use my phone. And what should I do with the battery?!
Thanks in advance for any help, it is really appreciated.

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