Sony Ericsson Xperia™ ion HSPA(LT28H) - Manual (Page 140)

Troubleshooting
My phone is not working as expected
If you experience problems with your phone, check these tips before you try anything
else:
• Restart your phone.
• Remove and re-insert the SIM card. Then restart your phone.
• Force a restart of the phone if the phone hangs and can't be restarted normally.
• Update your phone. Updating your phone ensures optimal performance and provides
the latest enhancements. See Updating your phone on page 131 for more
information.
• Reset your phone.
Be patient while resetting your phone. Restarting the phone during a reset procedure may
damage the phone permanently.
To force the phone to shut down
1 Press and hold down both the volume up key and the power key for 10
seconds.
2 After your phone vibrates three times, release the keys. The phone turns off
automatically.
To force the phone to restart
1 Press and hold down both the volume up key and the power key for five
seconds.
2 After your phone vibrates once, release the keys. The phone restarts
automatically.
Resetting the phone
You can reset your phone to its original settings. When you perform a factory data
reset, you reset the phone to the state it was in before you turned it on for the first
time, and all personal data is erased. You can also reset the phone to the original
settings without erasing your personal data. Before you perform a reset, make sure to
back up any important data saved on your phone.
To reset the phone without erasing personal data
To avoid permanent phone damage, do not restart the phone while a reset procedure is
underway.
1 From your Home screen, tap .
2 Find and tap Settings > Backup & reset.
3 Tap Settings reset > Reset phone.
4 To confirm, tap Reset settings.
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