SM-T280 screen lock reset

INFO : 4/10/2018 4:04:13 PM > Platform: Samsung Android
INFO : 4/10/2018 4:04:13 PM > Selected port:
INFO : 4/10/2018 4:04:13 PM > Selected model: SM-T280
INFO : 4/10/2018 4:04:13 PM > Operation: Reset Screen Lock
WARN : 4/10/2018 4:04:18 PM > Reset Screen Lock operation for SM-T280 will delete all user data on the phone (contacts, pictures and others)!
WARN : 4/10/2018 4:04:18 PM > Connecting to server...
INFO : 4/10/2018 4:04:20 PM > Connecting to server...Ok!
INFO : 4/10/2018 4:04:20 PM > Checking resource files...
INFO : 4/10/2018 4:04:22 PM > Resource files already downloaded.
WARN : 4/10/2018 4:04:22 PM > Please put the phone into Download Mode and connect USB cable.
WARN : 4/10/2018 4:04:22 PM > To put SM-T280 into Download Mode, You have to perform the following steps:
WARN : 4/10/2018 4:04:22 PM > 1. Reconnect the battery.
WARN : 4/10/2018 4:04:22 PM > 2. Press and hold "Volume-" + "Home" + "Power ON" keys.
WARN : 4/10/2018 4:04:22 PM > 3. When phone turns on, press "Volume+" key.
INFO : 4/10/2018 4:04:23 PM > Waiting for phone...
INFO : 4/10/2018 4:04:52 PM > Firmware write started.
INFO : 4/10/2018 4:04:52 PM > Writing Custom section...
INFO : 4/10/2018 4:04:57 PM > Custom section has been written successfully.
WARN : 4/10/2018 4:04:58 PM > Reset Screen Lock successfully completed.
INFO : 4/10/2018 4:05:12 PM > Performed by 2.6.7 Software version.