DPF OFF AND CHECKSUM HELP NEEDED

[Barry1]

Hi guys I wanted to ask a silly newbie question, I want to do DPF off after posting full BDM read , Using FG Tech Galletto
I know once posted there is a lot of helpful members who happily do DPF off from files posted,
what I dont understand is this checksum .
Is this automatically corrected in the modified file or is it something that i have to do when I recieve file back . some one please explain in plain english, Thanks

[dtip]

What car, model, year, engine, ecu , anything...?

[Barry1]

What car, model, year, engine, ecu , anything...?

Hi sorry was asking question in general about checksums, read alot about winols software and other dpf off software but wasnt sure what happens with checksum is it automatically done
thinking of BMW 520d 2007 bosch dde7 , thanks

[dverchenko]

Winols itself corrects the checksums.