In this thread please list games which are working on 3.55 CFW (either wutangrza + geohot + lvl2 patcher or Kmeaw + lvl2 patcher).
Please write the name - update version number - WORKING or NOT WORKING
THEORY: If a update results in a black screen, just delete the installed data, that should return you to the default original version so you can run the backup as before. PLEASE BACKUP YOUR DATA BEFORE UPDATING JUST IN CASE.
I'll start with the ones I've personally tested:
Call of Duty: Black Ops - 1.03 - WORKING
Gran Turismo 5 - 1.05 - WORKING
Please reply with which game updates are working/not working and I'll add them to the original post.