How to Backup Before Flashing a Custom ROM

Proper backup is essential before flashing. Here's a complete guide.

What to Backup

Priority 1: Critical Data

Priority 2: App Data

Priority 3: System

Backup Methods

Cloud Backup (Easiest)

- Settings > System > Backup

- Enable backup

- Sync contacts, photos, app data

- Settings > Chats > Chat backup

- Backup to Google Drive

- Export accounts to cloud

Local Backup

- Full app + data backup

- Restore on new ROM

- Complete migration tool

- Works across ROMs

```bash

adb backup -apk -shared -all -f backup.ab

```

TWRP Nandroid Backup

Verification Checklist

Before flashing, verify you have:

After Flashing

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*A good backup takes 30 minutes but saves hours of regret.*