This is an update in my Z10 saga...(not turning on after latest update) Spoke to Koodo rep in Mumbai, went thru the troubleshooting thing with no success. Then, she wanted me to buy a new phone. I told her this wasn't going to happen, and that I wanted a phone that would last more than four months past the warranty. I reactivated an older Bold 9900 and am using that until I can get this issue resolved. Am still trying to talk to someone at BB who cares, but will keep after them since I'm finding out that it seems to be BB's fault in these phones frying.