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How to factory data reset Samsung Galaxy Tab Active 2 SM-T395 Android 7 Nougat with two methods: Hard reset via External Hardware keys ( Recovery Mode ) and Soft reset via Settings menu. Hard reset also called Factory reset or Master reset.
How to flash / update the ROM https://goo.gl/zXnXC5
Note: This video use Galaxy J7 Pro 2017 as sample, the procedure hard reset and soft reset are the same for Galaxy phones and tablets