Press and hold the Volume Up and Volume Down buttons simultaneously.
This is the most common way to access the hidden menu for Bootloader/Fastboot options: your device completely.
To enter Fastboot mode on a Samsung Galaxy A7 (or the "Repack" variant, typically referring to a refurbished or specific regional software version), you must first access the Recovery Menu
If you intended to flash a stock ROM using Odin, you actually need : how to open fastboot mode on samsung galaxy a7 repack
Connect the USB cable to your computer, but not to the phone yet.
Hold (or Volume Up + Power + Home on older models) to enter Recovery Mode. In TWRP, tap on Reboot . Select Bootloader . The phone will reboot into Fastboot Mode. Method 3: Using ADB Commands
The phone will automatically turn off and restart into the selected flashing screen. Method 3: Accessing via Android Recovery Menu Press and hold the Volume Up and Volume
If your phone is rooted or has USB Debugging enabled, you can use a computer to trigger the mode.
Install the latest standard Samsung Android USB Drivers on your workstation computer.
(including various "repack" or custom firmware versions) is slightly different than on other Android phones. Most Samsung users are looking for Download Mode Hold (or Volume Up + Power + Home
If you entered this mode by mistake or want to abort the repack flashing process, you can safely exit without damaging the system.
Type the following command and press Enter: adb reboot bootloader
The A7 vibrated once. The Team Win Recovery logo bloomed on the cracked screen like a sunrise. The loop was broken.