Got the update for my 5122. However, phone did show only one SIM, even if two SIMs were present. The only visible SIM showed operator name in SIM setting. I was stupid enough to click it. Now the phone shows in SIM settings "No SIM card installed", and no options to do anything more. I did not remove any settings or modify files related two SIMs tweak in default.prop or ril_subscription.conf. maybe I should have done it. Any ideas, other than reset the phone?