NO, you have to do a hard reset.
Connect your iPhone to your desktop/notebook.
Launch iTunes.
Once your iPhone is detected, click on the iPhone button.
Under the Summary tab, click on the Restore iPhone button.
You’ll be prompted to to create a backup of your iPhone. If you want to backup all your data, go ahead. In this guide we’re erasing everything without backing up.
Click Restore. iTunes will then begin restoring the phone to its original factory state.
After the process is complete, your iPhone will restart and you’ll be presented with the “Slide to set up” welcome screen, just like when you turned on your iPhone for the first time.
IF this still doesnt work, i will advise you give it back to uber and get the £150 , Buy a HTC M8 and for £20/motnh i am sure you can find a very good deal for data.