As Scrum master, can we reinitialyse the burndown chart?

[Olivier SENG]

Hi,

I've input some new tasks just after the begining of the sprint.

Can I configure those input to be pre-sprint so that the  theoretical line in the burndown chart is more align with the reality?

Or can I reinitialyse the start of the sprint to take the new changes ?

[Tomáš Vrabec]

Nope. 

You did something, which is again agile rules.

After sprint is started, you should never touch the scope

OR

if there is some blocker you have to solve, you have to put it in running sprint BUT you have to REMOVE same amount of scope you added.

So the answer is No and its expected behavior.