Well it did work for me though let me give a detail explanation so if your doing something wrong you get it right
1) boot into T.W.R.P
2) Click Wipe
3) Then click advance wipe
4) check data, cach, dalvik, system
5) swipe right to wipe
6) Flash Arrived Sapphire it should work
Disclaimer: This will wipe all your data and all of your system so it is safe to make a backup with T.W.R.P I hope you know how to do it in case you don't i gotta covered
To backup:
1) Boot in T.W.R.P
2) Click Backup
3) check compression (it will compress the backup files so they take up less space)
4) Swipe right to backup
5) All nice and safe now :good:
To restore
1) in T.W.R.P click restore
2) select backup
3) swipe right to restore
4) All is well :good:
I hope i was helpful update me if it worked