So I have a similar issue... I've learned my lesson about freezing apps vs uninstalling them. Sometimes you just have to F up to learn LOL.
I tried to put the files in the system\app directory, changed permissions, and owners with no luck. So, I down loaded everything in the link above and tried to flash 902 with rsdlite... it gets to 6/22 and fails. It's trying to flash cdt.bin, but says phone returned fail.
I can get it to boot up if I hold both vol buttons and select boot normal, but it doesn't seem like my email is working. Plus every time I reboot now it goes to fastboot and says flash failed.
Any idea how I can fix this?