UNLOCK DONE SAMSUNG SM-G550T1 METRO PCS 100 % TEST
1. Enable USB debugging
2. Add On OEM release
3. Move to memory or microSD samsung the file UPDATE-SuperSU-v2.78-20160905010000.zip
4. Put in download mode ( volume - more home and power)
5.-decompress and abir version Odin_3.10.7.zip
6. Put the file in PDA TWRP - 3.0.2-0 - on5ltetmo.img.tar clear the auto- reboot ( because the process is finished , remove the battery and put in recovery mode)
7. In the recovery to install , find the file and install UPDATE-SuperSU-v2.78-20160905010000.zip
8.Open GCPROKEY samsung tab mark adbusb scan , you know can select the model that is , I put it with SM-530W but whatever it is,
9. TMOBILE put in service and give in Star Unlock and then give the root permission and ready to charge as if by apk
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