first thing i will say is this worked on my sprint samsung galaxy s8, however the process was very difficult for me until i found a tech that was extremely helpful and did all the work for me remotely, what had taken me over a week without success took him 15 minutes and now i was able to slip my metro pcs sim card in. i would definitely recommend this to anyone who is looking for a legit unlock and if there is trouble ask for TECH06.