How to Install android 4.1.1 on Samsung Galaxy Mini GT-S5570I

step 1 save all data step 2 download http://www.mediafire.com/download/5501kr3tn0g6267/S5570i_alex+beta+android+4.1.zip step 3 copy android 4.1 to SD card step 4 power off step 5 hold :- up volume, keypad and power key same time step 6 wipe all data with cache partition step 7 go to apply update from sdcar then select android jully 4.1 Guide http://downloadcenter.samsung.com/content/UM/201112/20111222095039480/GT-S5570I_UM_EU_Gingerbread_Eng_Rev.1.0_111116_Screen.pdf it will take up 15 min max ENJOY