XO 1.75 C1 ECOs
Revision as of 06:02, 11 December 2011 by Wad (talk | contribs) (Created page with '{{OLPC}} These are recommended engineering change orders (ECOs) to the C1 prototype of the XO-1.75 laptop. This is NOT a list of changes from C1 to C2, that i…')
This page is monitored by the OLPC team.
These are recommended engineering change orders (ECOs) to the C1 prototype of the XO-1.75 laptop. This is NOT a list of changes from C1 to C2, that is located elsewhere.
Loss of first keypress when suspended
If an unmodified XO-1.75 laptop is suspended, and a user presses a key, the laptop wakes up but the keypress is lost (<trac>11401</trac>).
- Populate R352 and R354 with zero ohm resistors (or short them).
- Install the most recent OFW or EC code.
Done to very few laptops.
Camera Problems
If the camera doesn't work right, it is possibly due to a marginal power switch.
- Replace Q20 with an AO3402, or even with another AO3404 (part currently mounted).
Done to very few laptops --- this problem wasn't detected until the XO-3 A1 bringup.