Can a jail term be removed upon settlement of a bounced cheque case?

A friend of mine has a criminal case in Fujairah for bounced cheque AED 500,000.

The criminal case has been filed and a sentence of jail term for 6 months has been imposed by Fujairah First Court in absentia. He would like to know the following:

1) If he reaches the settlement with the complainant, can the jail term be removed even though the first court-imposed 6-month jail?

As far as I know, settlement with the complainant works if both accused and complainant made a certain agreement before the first court issue a judgment. However, once the first court imposes the jail for 6 months, the jail term can be reduced or can be changed to fine, but will not be completely removed.

2) Can he be released the next day after settlement with the complaint?

3) What kind of document does he have to receive from the complainant after making full payment?