From OLPC

These are the changes planned for the XO-4 C2 model, from the C1 prototypes. The list of changes made to the C1 prototypes as part of testing is the XO-4 C1 ECO list.

[edit] C1 Electrical Fixes

These changes fix problems in the C1 prototypes:

[edit] ESD

Steps need to be taken to protect Q8 (HDMI hot plug detect circuit) from ESD.

[edit] C1 Layout Fixes

[edit] Internal SD

The ground pads for the internal SD slot need thermal isolation from the ground plane.

[edit] CForth Serial Port

The ground pads for CN23 need thermal isolation from the ground plane.

[edit] C1 Mechanical Changes

[edit] Speaker Mounting

This was not fixed in the C1 laptop. It will be fixed in C2, even if it means delaying production.

[edit] Planned Feature Changes