Samsung Galaxy J4 Fastboot Mode
How to utilize fastboot mode on your Samsung Galaxy J4 by accessing advanced commands for updates and repairs; follow our pro step-by-step guide for precision.
Fastboot Mode · Fastboot Commands · ADB Fastboot · Command Line · USB Debugging · System Flashing · Fastboot Interface · Developer Commands
How to Start Your Samsung Galaxy J4 in Fastboot Mode
Fastboot Mode via Button Combination
The Fastboot mode allows you to execute system commands directly from your PC, unlock the bootloader, or flash a new firmware.
Step by Step Guide
Follow this step-by-step guide to put your Samsung Galaxy J4 into Fastboot mode:
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Step 1: Turn off your device
Press and hold the Power button and select Power Off to completely turn off your device.
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Step 2: Connect your device to the computer
Use a USB cable to connect your Samsung Galaxy J4 to a computer.
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Step 3: Press Volume Down + Power Button
Press and hold the Volume Down button and the Power button at the same time until the Fastboot logo appears.
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Step 4: Fastboot Mode Screen Appears
Once the Fastboot Mode screen appears, release all buttons.
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Step 5: Use ADB/Fastboot Commands
Open a command prompt on your PC and enter Fastboot commands to control your device.
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Step 6: Restart Device (Optional)
To exit Fastboot mode, enter the command
fastboot rebootor press and hold the Power button until your device restarts.
