Hard Reset for O2 Cosmo

In order to hard reset a O2 Cosmo, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
O2 Cosmo device will be brought back to the default configuration of a brand new device.


1. Turn off the phone.
Hard Reset for O2 Cosmo
2. Now press-hold Power and both Softkeys simultaneously for two seconds.
Hard Reset for O2 Cosmo
3. Press 0 to confirm the hard reset. Done! Watch as your phone resets & restarts.

Warning ! HardReset24.com is not responsible for any damage caused by our tutorials. You do it at your own risk.

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