i9100 wont charge - Galaxy S II Q&A, Help & Troubleshooting

Hello, I have a little question, recently a friend told me if I can fix his i9100, cause "it remains at logo"
My surprise was that the phone doesnt even charge, when I plug it to the power, a battery that aparently is loading apears, for 2 segs, and then the screen turn off, and then the battery icon agains, and remains in a infinite loop but wont charge
Someone have this problem and knows how to repair it? I wish the problem isnt hardware :/
This is the exact icon i say:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Thanks in advance Guys!

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ManaSV93 said:
Hello, I have a little question, recently a friend told me if I can fix his i9100, cause "it remains at logo"
My surprise was that the phone doesnt even charge, when I plug it to the power, a battery that aparently is loading apears, for 2 segs, and then the screen turn off, and then the battery icon agains, and remains in a infinite loop but wont charge
Someone have this problem and knows how to repair it? I wish the problem isnt hardware :/
This is the exact icon i say:
Thanks in advance Guys!
Click to expand...
Click to collapse
could need a new battery or new usb flex cable (charger port)

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even more, perhaps..there is a "bootloop" problem that explained this behaviour...please looks for the post, in Development thread, to fix this issue

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ko2005pu said:
even more, perhaps..there is a "bootloop" problem that explained this behaviour...please looks for the post, in Development thread, to fix this issue
Click to expand...
Click to collapse
Thank you very much for your answer, it makes me happy that possibly the problem has a fix, but, please, can you link me the fix, i searched before (maybe i didn't search properly) but I didn't found it, please help me, thanks in advance!

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You will have to reflash a stock rom using ODIN. Don't worry because there are many guides over the internet. Guide: http://mobilenetworkcomparison.org.uk/tutorials/how-to-restore-the-stock-samsung-galaxy-s2-rom/
Make sure you download the rom for the correct version of phone!
Once you've flashed stock rom, make sure to factory reset and wipe cache partition. (note: don't do this if you are going to flash ics because this might hard brick your device)

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gsstudios said:
You will have to reflash a stock rom using ODIN. Don't worry because there are many guides over the internet. Guide: http://mobilenetworkcomparison.org.uk/tutorials/how-to-restore-the-stock-samsung-galaxy-s2-rom/
Make sure you download the rom for the correct version of phone!
Once you've flashed stock rom, make sure to factory reset and wipe cache partition. (note: don't do this if you are going to flash ics because this might hard brick your device)
Click to expand...
Click to collapse
Hello Thanks! I didn't see when you reply!!
The problem is that, I can't even get into download mode, when i press power button, the screen doesn't turn on, the screen turn on until I plug the charger, but only appears the battery icon i put in the first post :/

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ManaSV93 said:
Hello Thanks! I didn't see when you reply!!
The problem is that, I can't even get into download mode, when i press power button, the screen doesn't turn on, the screen turn on until I plug the charger, but only appears the battery icon i put in the first post :/
Click to expand...
Click to collapse
Maybe it is a battery problem... Try a new battery.

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Tried with a new battery, and same problem :/