Remove the SIM card and check if contacts or messages are stored on it
Remove the microSD card and copy files from it using a card reader
Connect the phone to a charger and try a different cable, adapter, and power outlet
Let the phone charge for at least 30 minutes before trying to power it on
Try a forced restart using the phone’s button combination
Connect the phone to a computer and check if it is detected
Use the manufacturer’s recovery or backup software if the phone is recognized
Check cloud backups such as Google, iCloud, Samsung, or other account backups
Use the same account on a new device to sync contacts, photos, notes, and messages
If the screen is dead but the phone still powers on, connect it to an external display if supported
If USB debugging was previously enabled, use ADB or recovery tools to copy data
If the phone has a removable battery, try a known-good battery
If the charging port is damaged, use wireless charging if supported
If the phone is water-damaged, dry it properly before attempting power
If the phone is physically damaged, seek professional data recovery service
If the storage is encrypted and the phone cannot boot, use the original passcode or biometric recovery if possible
Avoid factory reset or flashing firmware if you need the data
Keep the phone in its current state until data recovery is attempted