In case you are one of those who upgraded your T-Mobile HTC One to RUU 1.27.531.11 and lost the ability to S-off your HTC One, you need not worry. Rootzwiki developer xboarder56 has posted a working method wherein you can downgrade yor T-Mobile HTC One to RUU 1.27.531.8 from 1.27.531.11 and then get S-Off. The […]