the button combination:
If you cannot open Fastboot mode on your Samsung Galaxy A7 Repack, . Odin is safer and works universally. how to open fastboot mode on samsung galaxy a7 repack
1234567890ABCDEF fastboot
If your Galaxy A7 has a dedicated Bixby button (common on the A7 2018) or is running newer Android versions (Oreo/Pie), the combination changes slightly. the button combination: If you cannot open Fastboot
If the device freezes on the warning screen or you want to exit Download Mode without flashing anything: how to open fastboot mode on samsung galaxy a7 repack
Once the Samsung logo appears on the screen, release both buttons immediately. Enter Recovery Mode