Android wont boot

[AC Question]

Hi,
a friend of mine gave me a phone to repair. As i said to her, i am not good at these things, but i could try it. Mobile is Samsung mini Gt-S5570I. Problem is simple. When you launch the mobile, it will show classic samsung starting, but when the android should load, the mobile restart it self.
I tried pull of Sd card and du factory reset. Did not help. I also tried safe mode, but it show "Odin mode" and "downloading, do not turn off the target" and stucked.
I thought, reinstalling Android should help it, but i cant find nothink about it on the internet for 3 days now. Please help!

 

[Rukbat]

See [Samsung] How to flash Stock ROM via ODIN. Unless there's a hardware problem (which may cost more to repair than a good used 5570 might), that should fix it. (All her apps and data will be gone, but she should be backing the phone up regularly, so that shouldn't be a problem.)