Keep the PIN secret and in a safe place,separate from your phone.If you forget the sign-in PIN and cannotrecover or reset it in any way, your phone willrequire service. Additional charges mayapply, and all the personal data on yourphone may be deleted.For more information, contact the nearestcare point for your phone, or your phonedealer.IMEI This is used to identify phones in thenetwork. You may also need to give thenumber to your care point services or phonedealer.To view your IMEI number, dial *#06#.Troubleshoot connectivity issuesIf your internet connection doesn’t work• Check your cellular data connection. Swipe down from the top of the screen, tap Allsettings > Network & wireless > Cellular & SIM, and check that Data connection isswitched to On .• Check your Wi-Fi connection. Swipe down from the top of the screen, tap and hold Wi-Fi, and check that Wi-Fi networking is switched to On and you are connected to anetwork.• Check that battery saver mode is not turned on. Swipe down from the top of the screen,and tap All settings > System > Battery saver.• If you are abroad, check that you have allowed roaming. Swipe down from the top of thescreen, tap All settings > Network & wireless > Cellular & SIM, and check thatData roaming options is switched to roam. Connecting to the internet when roaming,especially when abroad, can raise data costs substantially.• If you have installed new settings from a text message, uninstall the new settings. TapStorage > This Device > Apps & games and the new settings item, and tap Uninstall.© 2016 Microsoft Mobile. All rights reserved. 130