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To connect SM-J120H phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
Platform: Samsung Android
Selected port: COM1
Selected model: SM-J120H
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SM-J120H
Firmware compiled date: Fri Apr 8 14:22:16 KST 2016
PDA version: J120HXXU0APD3
CSC version: J120HOJV0APD1
SW version: J120HXXU0APD2
Phone SN: R51H70Y2VNL
Android version: 5.1.1 (LMY47V)
Country: KSA
HW platform: sc8830
HW Chip: SC7727SE
HW Modem: SC7727SE
Codename: j1x3gxx
Connecting to phone's modem port, please wait...
Found phone on COM238
Unlocking phone. This can take some time. Please wait...
Phone is successfully unlocked
To finish the operation, please restart the phone via phone's menu.
Performed by 2.3.0 software version

1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
Platform: Samsung Android
Selected port: COM1
Selected model: SM-J120H
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SM-J120H
Firmware compiled date: Fri Apr 8 14:22:16 KST 2016
PDA version: J120HXXU0APD3
CSC version: J120HOJV0APD1
SW version: J120HXXU0APD2
Phone SN: R51H70Y2VNL
Android version: 5.1.1 (LMY47V)
Country: KSA
HW platform: sc8830
HW Chip: SC7727SE
HW Modem: SC7727SE
Codename: j1x3gxx
Connecting to phone's modem port, please wait...
Found phone on COM238
Unlocking phone. This can take some time. Please wait...
Phone is successfully unlocked
To finish the operation, please restart the phone via phone's menu.
Performed by 2.3.0 software version

Last edited by a moderator: