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iPhone Troubleshooting

Email/Calendar Equipment problems Service problems Other
I am a CUIT Exchange user. How do I configure my iPhone for my e-mail?
  1. Click on Settings
  2. Click on Mail, Contacts, Calendars
  3. Click on Add Account
  4. Click on Exchange
Use the following settings:

Email: Your Columbia email Address (typically uni@columbia.edu)
Domain: Alpha
Username: Exchange Username (typically uni)
Password: Exchange Password
Description: Give a name to your email account (this may populate automatically)

Click Next and Accept the Certificate Message

Server: outlook.cuit.columbia.edu

Click Next and select your Exchange synchronization settings for Mail, Contacts, Calendars

Click Save

I am a Columbia Cyrus user. How do I configure my iPhone for my e-mail?
  1. Click on Settings
  2. Click on Mail, Contacts, Calendars
  3. Click on Add Account
  4. Click on Other
On the IMAP tab use the following settings:

ACCOUNT INFORMATION
Name: Your Full Name
Address: Your Columbia email Address (uni@columbia.edu)
Description: Columbia IMAP

INCOMING MAIL SERVER
Host Name: mail.columbia.edu
User Name: Your UNI
Password: Your UNI Password (********)

OUTGOING MAIL SERVER (SMTP)
Hostname: send.columbia.edu
Username: UNI
Password: Your UNI Password (********)

My Exchange and/or Cyrus email is not syncing. What should I do?

If your iPhone is not receiving new email try the simple troubleshooting steps below

  1. Browse the web using Safari. If you are unable to browse the web then your device might not be connecting to the ATT network.
    a. Turn the device OFF for about 2 minutes to reset it.
    b. Your iPhone might be in Airplane Mode. You can turn OFF this setting by going to Settings -> turn Airplane Mode OFF
    c. The Cellular Data could be OFF. To check go to Settings -> General -> Network -> turn Cellular Data ON
  2. Verify that your iPhone OS is up to date
  3. a. Connect the device to iTunes. On the Summary Section, under Version, your iPhone will say whether the OS is up-to-date or if it needs to be updated.
  4. If you can browse the web, and you email is not syncing, check your Email Settings
    a. Go to Settings -> Mail, Contacts, Calendars
  5. If all the settings match your preferences then delete the email account and re-add it.

My Exchange Calendar is not syncing. What should I do?
My iPhone is showing duplicate Exchange calendar entries. How do I remove them?

If your Exchange Calendar is not updating or is showing duplicate entries try the simple troubleshooting steps below.

  1. Determine whether the entries that are not updating are one-time meetings, recurring meetings, or neither are updating.
  2. Turn the device OFF for about 2 minutes to reset it
  3. Check your Calendar settings
    a. Go to Settings -> Mail, Contacts, Calendars
    b. Delete any other non-Exchange calendar (e.g Yahoo, Google calendar).
  4. If you dont have any other calendar or have deleted the other calendars and your Exchange Calendar does not update, delete your Exchange account and re-add it.

My iPhone battery is suddenly draining rapidly. What should I do?

If you use the Exchange messaging platform, in a very small percentage of cases your iPhone may get caught in a loop when attempting to communicate with the server, causing your battery to drain faster than normal, and in some instances your iPhone to feel warm to the touch. First try deleting your Exchange account, rebooting the iPhone and adding your Exchange account back to your iPhone. If this does not improve battery life, please contact the CUIT Help desk so we can investigate further. Note that data stored on the Exchange server (including your recent email messages, contacts, and calendar entries) will reappear on your device once you have added your account back.


My device won't power on. What should I do?

To reboot your iPhone: Hold the Sleep/Wake button together with the Home button until the Apple logo appears on the screen. If your iPhone still won't turn on try connecting it to a power source for at least 30 minutes. If it still won't work, contact the CUIT Help Desk at 212-854-1919.


My iPhone screen is cracked. How do I get it repaired?

Unfortuantelly a cracked screen is considered physical damage. Physical and/or water damage is not covered by the device 1-year device warranty. You can take the device to any Apple store and get it replaced for a fee or you can take the device to a third party for repair.

If your device is replaced please email askcuit@columbia.edu the new IMEI and Serial number on your device so we can update our records.


The speaker on my iPhone is not working. What should I do?

If the speaker on your iPhone is not working it is most likely to be a device issue. The quickest solution is to take the device to an Apple Store for repair/replacement. CUIT can complee this transaction; however we would need to keep your device for 5-7 business days until the replacement is received.

If your device is replaced please email askcuit@columbia.edu the new IMEI and Serial number on your device so we can update our records.


My iPhone is not charging. What should I do?

If your iPhone is charging slowly or not charging try the simple troubleshooting steps below

  1. Try a different charger
  2. Verify that your iPhone OS is up to date
  3. a. Connect the device to iTunes. On the Summary Section, under Version, your iPhone will say whether the OS is up-to-date or needs to be updated.
  4. Reboot your iPhone by holding the Sleep/Wake button together with the Home button until the Apple logo appears on the screen
  5. Clean the charging port with a brush and or with duster
  6. Check your device for physical damage and water damage.

SIM card error. What should I do?

If your iPhone displays any SIM card error message remove the SIM card and insert it again.

How to remove the SIM card
remove sim


I cannot make phone calls

If you are unable to make phone calls from your iPhone turn the device OFF for about 2 minutes to reset it. Also, check for a no service message on the top left corner. To be able to make calls your iPhone should show 3G or E.

If after following the above steps your are still unable to make calls, contact the CUIT Help Desk at 212-854-1919


I cannot browse the web.

If you are unable to browse the web try the simple troubleshooting steps below

  1. Turn the device OFF for about 2 minutes to reset it.
  2. Verify that your iPhone OS is up to date
  3. a. Connect the device to iTunes.
    b. On the Summary Section, under Version, your iPhone will say whether the OS is up-to-date or needs to be updated.
  4. Can you receive emails?
  5. If Yes, contact the CUIT Help Desk at 212-854-1919.
    If No,
  6. Can you make and receive calls?
  7. If Yes, the Cellular Data could be OFF. To check go to Settings -> General -> Network -> turn Cellular Data ON
    If No, check for a no service message on the top left corner. Your iPhone should show 3G or E to work properly. Your iPhone could also be in Airplane Mode. You can turn off this setting by going to Settings -> turn Airplane Mode OFF

If after following the above steps your are still unable to browse the web, contact the CUIT Help Desk at 212-854-1919


I cannot access my voicemail box.

If you cannot remember your voicemail password or need the password reset you can press the quation mark icon that appears on the Enter Voicemail Password prompt, or call 611. This will connect your to A&T. If required, the billing zip cose is 10027. The agent should assist you with reseting the password. You can also contact the CUIT Help Desk at 212-854-1919.


I'm outside the US and I cannot make calls and/or send/receive email

If you are outside the US and either the voice service, the data service, or neither are working:

  1. Before leaving the US, did you contact CUIT to activate the international features on your line?
  2. If Yes, contact your carrier international support line at
           a. Verizon 908-559-4899
           b. ATT 916-843-4685
    If No, contact CUIT 212-854-1919 to request the international features be added to your line.

How do I backup my iPhone?
  1. Plug your iPhone into your computer
  2. Open iTunes
  3. Right click on the iPhone icon on the left side menu
  4. Select the Back Up option
  5. Wait for the Back Up to finish
**Your iPhone does not need to be active to back it up.

How do I update my iPhone OS?
  1. Plug your iPhone into your computer
  2. Open iTunes
  3. Click on the iPhone icon on the left side menu
  4. On the Summary Section, under Version, your iPhone will say whether the OS is up-to-date or needs to be updated.
  5. Follow the instructions to complete the update

How to optimitze your iPhone battery life

For a detailed list of tips on improving battery life click:  iPhone Battery

Depending on how they are configured, a few features may decrease your iPhone battery life. For example, the frequency with which you retrieve email and the number of email accounts you auto-check can both affect battery life. The tips below apply to an iPhone running iPhone 2.0 or later software and may help extend your battery life.

  • Minimize use of location services: Applications that actively use location services such as Maps may reduce battery life. To disable location services, go to Settings > General > Location Services or use location services only when needed.
  • Fetch new data less frequently: Applications such as Mail can be set to fetch data wirelessly at specific intervals. The more frequently email or other data is fetched, the quicker your battery may drain. To fetch new data manually, from the Home screen choose Settings > Fetch New Data and tap Manually. To increase the fetch interval, go to Settings > Fetch New Data and tap Hourly. Note that this is a global setting and applies to all applications that do not support push services.
  • Turn off push mail: If you have a push mail account such as Yahoo!, MobileMe or Microsoft Exchange, turn off push mail when you don’t need it. Go to Settings > Fetch New Data and set Push to Off. Messages sent to your push email accounts will now be received on your phone based on the global Fetch setting rather than as they arrive.
  • Auto-check fewer email accounts: You can save power by checking fewer email accounts. This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.
  • Minimize use of third-party applications: Excessive use of applications such as games that prevent the screen from dimming or shutting off or applications that use location services can reduce battery life.
  • Turn off Wi-Fi: If you rarely use Wi-Fi, you can turn it off to save power. Go to Settings > Wi-Fi and set Wi-Fi to Off. Note that if you frequently use your iPhone to browse the web, battery life may be improved by using Wi-Fi instead of cellular data networks.
  • Turn off Bluetooth: If you rarely use a Bluetooth headset or car kit, you can turn off Bluetooth to save power. Go to Settings > General > Bluetooth and set Bluetooth to Off.
  • Use Airplane Mode in low- or no-coverage areas: Because your iPhone always tries to maintain a connection with the cellular network, it may use more power in low- or no-coverage areas. Turning on Airplane Mode can increase battery life in these situations; however, you will be unable to make or receive calls. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.
  • Adjust brightness: Dimming the screen is another way to extend battery life. Go to Settings > Brightness and drag the slider to the left to lower the default screen brightness. In addition, turning on Auto-Brightness allows the screen to adjust its brightness based on current lighting conditions. Go to Settings > Brightness and set Auto-Brightness to On.
  • Turn off EQ: Applying an equalizer setting to song playback on your iPhone can decrease battery life. To turn EQ off, go to Settings > iPod > EQ and tap Off. Note that if you’ve added EQ to songs directly in iTunes, you’ll need to set EQ on iPhone to Flat in order to have the same effect as Off because iPhone keeps your iTunes settings intact. Go to Settings > iPod > EQ and tap Flat.
  • Turn off 3G: Using 3G cellular networks loads data faster, but may also decrease battery life, especially in areas with limited 3G coverage. To disable 3G, from the Home screen choose Settings > General > Network and set Enable 3G to Off. You will still be able to make and receive calls and access cellular data networks via EDGE or GPRS where available.

iPhone Shortcuts

Outcome Action Notes
Power On/Off Hold down the Sleep/Wake button until either the Apple logo or slider appears For soft reset hold down Home + Sleep/Wake until Apple logo appears
Find your Phone Number Tap Settings, Phone
Restore iPhone Connect to iTunes and click Restore
Set a Passcode Lock Tap Settings, General, Passcode Lock
Take a screenshot Press Home + Sleep Output goes to your Photo Album
Send a text to multiple recipients Add additional numbers to the address field just like an e-mail
Switch to Scientific Calculator Tap Calculator, then rotate the iPhone to landscape view
Remove an application or switch the position on the screen Tap and hold an icon until they start shaking, then tap the X or move the icon to a new position, Press the Home button when you’re done
Disable 3G data Tap Settings, General, Network, change Enable 3g Data to Off May improve coverage under certain conditions.





More usefull iPhone information

For manuals, software, updates, and more useful information please visit iPhone