Samsung Z4 hard reset
Using the hardware keys to remove password, PIN or reset the unlock pattern / gesture lock.
This is a simple step by step instructional article to help guide you through the steps of doing a hard reset on your Samsung Z4 phone.
1. Turn off the phone completely.
2. Press and hold both Volume UP and HOME + power on the phone. Keep pressing the VOl + home.
3. When Android Recovery menu screen appears release all keys.
4. Navigate and highlight "wipe data / factory reset" using the Volume down key and press power.
5. Navigate and highlight again to Yes -- delete all data and press power.
6. All data will be lost! Before doing a hard reset backup all important data.
After hard reset is done select Reboot system now. Press power to reboot the phone.
Please note if the screen is showing Downloading... or similar you are in download mode or in other words firmware update mode which means the phone is waiting for a connection from your PC. If you are not sure what this mode is for, then you can safely reboot or power off your phone using the Power button, or even remove the battery for a short time. Download mode is for flashing your phone, upload the phone's firmware via USB cable. Never disconnect or power off your phone during firmware flash, because it will break your phone!
Another way to reset your Samsung Galaxy Z4 is to enter the reset code on dial screen.
On dial screen enter this Samsung Samsung Z4 reset code: *2767*3855#
All data will be lost!
Reset & Restore
Go to Settings > Reset and restore > Restore Factory settings: Reset settings to the factory default values and delete all data.
This will erase all the data on your phone's internal storage, including:
- Your account
- System and app data and settings
- Downloaded apps
- Other user data
If the phone has a virtual SD card - not a physical memory card - be sure to switch it to on if you want to delete the data there.
On older systems you will find the menu settings very similar
Use Samsung Z4 Backup and reset function
Go to Settings > Backup and reset > Factory data reset: Reset settings to the factory default values and delete all data.
Your device freezes or has fatal errors
If your device freezes or hangs, you may need to close applications or reinsert the battery and
turn on the device to regain functionality. If your device is frozen and unresponsive, press and
hold the Power button for more than 8-10 seconds to reboot.
If this does not solve the problem, perform a factory data reset. On the Applications
screen, tap Settings -> Backup and reset -> Factory data reset -> Reset device -> Erase everything. Before performing the factory data reset, remember to make back-up copies of all important data stored on the device.
Samsung Z4 soft reset / restart
Press and hold for 8-10 seconds to reset the device if it has fatal errors or hang-ups, or freezes. This will restart your Samsung Z4 Android phone.