Thank you for your quick response. I am unsure which version it was running, and unable to boot phone to find out. However, I solved the original problem by releasing and repressing power button while still holding down both volume buttons. I went to recovery>from sd card>Blur)Version.6.12.181.XT912.Verizon.en.US(1).zip. (The (1) is because I ended up downloading it twice and put the second d/l'd version on sd). When I selected this, I get: --Install /sdcard... Finding update package... Opening update package... Verifying update package... E:signature verification failed Installation aborted.