Samsung Galaxy Metrix 4G I405 hard resetYour device freezes or has fatal errors
If your Metrix 4G I405 Andorid phone freezes or hangs, you may need to close programs or reset the device to regain functionality. If your device is frozen and unresponsive, press and hold [POWER] for 8-10 seconds, the device will reboot automatically or pull out the battery and then reinsert it. Replace the back cover and power on the device.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select
Settings → Privacy → Factory data reset → Reset phone → Erase everything.
or Factory Format by entering Metrix 4G SCH-I405 RESET CODE
Use this method to hard reset your Samsung Galaxy Metrix 4G Samsung SCH-I405 phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
When disposing of your device, back up all data and then reset your device to prevent misuse of your personal information.