Critical Prep: Backup Your Device Before Flashing Firmware > 자유게시판

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Prior to installing any custom firmware or ROM

creating a backup image is one of the most important steps you can take

A backup image is a complete copy of your device’s current system, data, and settings

If something goes wrong during the flashing process—like a failed flash, a bricked device, or unexpected bugs

your device can be returned to its pre-flashed condition with this restore point

This simple step protects your hours, your files, and your wallet

Start by ensuring your device is fully charged or at least above 70 percent

A low battery during the backup process can lead to corruption or failure

Activate both USB Debugging and OEM Unlocking via the Developer Settings

These settings are typically found under Settings > About phone, where you need to tap the build number several times to unlock developer mode

Use a high-quality, original USB cable to ensure stable communication

Make sure your computer has the proper drivers installed for your device

Now restart your phone into recovery mode

Check your device’s manual for exact instructions: some use Power + Vol Up, others Power + Vol Down, or even a dedicated recovery button

If you’re using a custom recovery like TWRP, you’ll see a menu with options like backup, wipe, and install

Select backup

The interface will list available partitions and ask you to check the ones you want

Always include system, data, boot, and recovery partitions

If vendor is listed, make sure to check it too

If dtbo or persist shows up, select them for safety

The backup process may take several minutes depending on your device’s storage size and speed

Any interruption may result in a corrupted or unusable backup

After finishing, the backup files are stored in

Always make a secondary copy on your desktop, اکتیو دانگل cloud, or external storage

Your backup remains safe even if the device is completely bricked

Now that your backup is secured, you’re ready to install the new software

Confirm the file’s MD5, SHA-1, or SHA-256 hash matches the official value

Never flash a file unless its hash and version are verified

Don’t delete the backup immediately—even a successful flash can reveal hidden issues later

You may miss your previous UI, lose app functionality, or encounter buggy third-party apps

Your memories, chats, media, and preferences remain intact when you roll back

Creating a backup image is a simple step that can prevent hours of frustration

It takes only a few minutes and requires no special tools beyond what you likely already have

Even expert users can encounter unexpected errors—always backup first

Your photos, messages, and apps are irreplaceable—backup is your only lifeline