Samsung I9300: how to repair boot?
 

Please if someone sucessfuly repaired boot i9300 with SD card method some help .
I have no clue what is anyvay jig so i tryed to go SDCARD mode with batery but with no sucess when shorting resistor .
As best things comes acidentally i suceded to go SDCARD mode by holding Volume + , volume - and power with Sd card inserted but the problem is that phone says
SDCARD MODE
COPY BINARY FROM SDCARD
COPY BINARY TO EMMC

and stays so without message suceded .

I tryed several times and it goes SDCARD mode but same result .
I leave it for tomorow but some ideas would be highly appreciated.

its a hw problem
you need to change emmc ic

Are You shure ? Where to buy it ? Is it normal to go SDMODE this way ?

yes sure
i fixed many before
you can get emmc from old i9300