Hello Nieves,
I have an idea which may help resolve your query.
1.In tcd:SCP,copy codepage 4103 to your own one.
2.compare codepage 1117 and 4103 which character contains in 1117 but doesn't included in 4103.
3.Add these characters manaually into your newly create customized codepage.
But this is a very huge work,I'd like to suggest you to apply the support package instead of this.
Best Regards
Jie Bai