I tried to install using a method on other pages and now all my phone will do is flash the "Red M" on and off. Any suggestions?
Did you have bootstrap installed? If so that's why. You either have to sbf or to totally get rid of the bootstrap recovery app, delete the app, go into root explorer system/bin. Hit the. r/w button on top. Scroll to the hijack file and delete it. Then delete the logwrapper file and rename the logwrapper.bin file to just logwrapper. That will totally get it off your phone. If that is your issue, you should be able to take the update. Worst case ; you'll have to sbf
If you were ever on a custom rom you probably used bootstrap to flash it in. If you don't know what it is then you probably haven't installed it before.
Isn't there a high chance of bricking your phone doing sbf?