How to solve the Earth Code
If the status of Aelita is 'Earth Code Required.', you can bring her back to Earth only by going in a way-tower with the materialisation program developed by Jérémie.
Step 1: Guide Aelita to a way-tower
The materialization program can only be used from the first floor of a way-tower.
Guide Aelita to a way-tower from the
'Locations'tab of her 'Com. Card'.
Make Aelita enter the tower with the
'Get in (tower)'option available in the'Actions'tab of her 'Com. Card'.
Then ask Aelita to go up to the first floor of the tower with the
'Go up (tower)'option available in her 'Com. Card'.
Step 2: Rematerialise Aelita on Earth
Once Aelita is in place, all you have to do is launch the rematerialisation program using the CD player.
Exit the 'Interface' view mode with the option from the radial menu (right click).

Once in 'FPS' view mode, you will find on the right side of the screen the CD player of the interface. Click on it to open the 'Insert CD' menu.

Insert the CD 'Code: Earth' into the CD player. The rematerialisation program is then automatically loaded and executed, causing Aelita to rematerialise in one of the scanners.

