If the phone is still functional but lagging, you can try a hard reset first by entering the code *2767*3855# on the dialer.
Many users report their battery lasting 2 days longer after flashing an extra quality firmware due to optimized power tables in the PMIC partition. samsung gt c3322i flash file extra quality
: Open the Flash Loader. You must assign the firmware files to their specific slots: Application Binary Rsrc1 Binary Rsrc_C3322i.rc1 Rsrc2 Binary Rsrc_C3322i.rc2 Factory FS FactoryFs_C3322i.ffs CSC_C3322i.csc Enter Download Mode Power off the phone and remove the battery for 5 seconds. Reinsert the battery. Press and hold the Volume Down keys simultaneously. Connect and Start If the phone is still functional but lagging,
: If the phone hangs on the Samsung logo after flashing, perform a Master Reset *2767*3855# on the dial pad. Driver Errors You must assign the firmware files to their