First Need Firmware

Use latest Package
885AED32_RM825_3049.0000.1333.0016_RETAIL_eu_italy _244_16_265838_prd_signed.ffu


Need driver

NCCD_v7.1.182.0.7z

install it( it also can download from support)
Normal 5130c usb cable
Full charged battery
Now we need to think phone is alive or dead now.
If phone alive just power on it and connect with usb cable .....................install driver

or if have dead phone or only come nokia logo in red screen just follow the statement

1. Press and hold : "Volume Down" + "Power On"
2. Insert USB cable
3. When cable connected and you feel short vibra - release buttons


now select the firmware of nokia 820 rm-825
885AED32_RM825_3049.0000.1333.0016_RETAIL_eu_italy _244_16_265838_prd_signed.ffu


although navifirm download 3 file but use just 1 file.


5.now click flash


Recommended in dead phone trick (Recovery flashing )
otherwise leave it un trick

successfully flashed 1 dead phone and recover it now.