Iridium 9555 Troubleshooting


Phone won’t power on.
• Did you press and hold the power button for a minimum of three seconds to turn the phone’s power on?
• Check the battery. Is it charged, properly fitted, and are the contacts clean and dry?

You can’t make calls.
• Check the antenna. Is it fully extended and correctly angled? Do you have a clear unobstructed view of the sky?
• Did you enter the number in international format? All calls made from the Iridium satellite system must be in international format. See “Placing a Call” on page 32.
• Check the signal strength indicator. If the signal is weak, ensure that you have a clear line of sight to the sky and there are no buildings, trees, or other objects interfering.
• Is Restricted displayed? Check the Call Barring setting.
• Has a new SIM card been inserted? Check that no new restrictions have been imposed.
• Check to see if your fixed dialing list is enabled. If so, you can only make calls to numbers or prefixes that are on the list.

You can’t receive calls.
• Check to see that your phone is powered on.
• Check the antenna. Is it fully extended and correctly angled? Do you have a clear unobstructed view of the sky?
• Check the signal strength indicator. If the signal is weak, ensure that you have a clear line of sight to the sky and there are no buildings, trees, or other objects around.
• Check the Call Forwarding and Call Barring settings.
• Check the Ringer setting. If it is off, there is no audible ringer.
• Check to see if your fixed dialing list is enabled.

You can’t make international calls.
• Have you included the relevant codes? Enter 00 or + followed by the appropriate country code and the phone number.

Your phone will not unlock.
• Have you inserted a new SIM card? Enter the new PIN code the default PIN is 1111).
• Enter the default phone unlock code: 1234
• Have you forgotten the unlock code?

Your PIN is blocked.
• Enter the PIN unblocking code or contact your service provider. See “Using the Security Menu” on page 153 for more information.

Your PIN2 is blocked.
• Enter the PIN2 unblocking code or contact your service provider. See “Using the Security Menu” on p.153 for more information.

Your SIM card will not work.
• Is the SIM card inserted the correct way?
• Is the card visibly damaged or scratched? Return the card to your service provider.
• Check the SIM and card contacts. If they are dirty, clean them with an antistatic cloth.

You can’t cancel Call Forwarding or Call Barring.
Wait until you are in an area with good network coverage and try again.

The message indicator is flashing.
There is not enough memory available to store another message. Use the messages menu to delete one or more messages.

The battery won’t charge.
• Check the charger. Is it properly connected? Are its contacts clean and dry?
• Check the battery contacts. Are they clean and dry?
• Check the battery temperature. If it is warm, let it cool before charging.
• Is it an old battery? Battery performance declines after several years of use. Replace the battery.
• Make sure you have an Iridium approved battery installed. If you see ? on the display near the charging icon, you cannot charge this battery.

The battery drains faster than normal.
• Are you in an area of variable coverage? This uses extra battery power.
• Is your antenna fully extended and correctly angled? Do you have a clear unobstructed view of the sky? This helps use less battery power.
• Is it a new battery? A new battery needs two to three charge/discharge cycles to attain normal performance
• Is it an old battery? Battery performance declines after several years of use. Replace the battery.
• Is it a battery that hasn’t been completely discharged? Allow the battery to fully discharge (until the phone turns itself off) and then charge the battery overnight.
• Are you using your phone in extreme temperatures? At extreme hot or cold temperatures, battery performance is significantly reduced.

You find your phone becoming warm during use.
You may notice this during long calls or during charging. The heat is produced by the electronic components within your phone and is quite normal.

Phone is not responding to user controls including the power keys.
Remove the battery from the phone and then reattach it to cycle power and reset.

Your SIM card is inserted in the phone but the display says: Check Card or Insert Card or Blocked
Check Card or Insert Card: Check that the SIM card has been inserted correctly. The contacts of the SIM card may be dirty. Turn the phone off, remove the SIM card and rub the contacts with a clean cloth. Replace the card in the phone.
Blocked: Enter the PIN unblocking key or contact your service provider. See “Call Barring PIN” on page 163 for additional information.

Your phone is displaying an unknown foreign language and you would like to restore it to its original setting.
• Power on the phone.
• Power on the phone. Press left soft key for menu.
• Power on the phone. Press down six times for Setup, then left soft key for Select.
• Power on the phone. Press down three times for Languages, then left soft key for Select.
• Power on the phone. Press left soft key for Select.

Phone states “Searching for Network”
• Ensure you are in an area with an open view of the sky
• Extend the antenna and point upright towards the sky directly above in order to receive a signal
• If your phone was powered on inside of a building or area with an obstructed view of the sky just prior to attempting a call outside, the phone may be temporarily in a power saving mode to conserve battery life. You may either wait for it to automatically exit the power saving mode within a minute or two on its scheduled interval or just simply turn off your phone and turn it on again to accelerate the registration process.

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Iridium 9555 Troubleshooting

Q: How do I remove the message envelope symbol on the screen?
A: This indicates that a new text message has been received. You must check your text messages to ensure that all new messages have been viewed. You may then delete or save any messages, and the envelope symbol should no longer appear.

Q: The message envelope symbol is flashing.
A: This means there is not enough memory for you to receive another text message. Follow the instructions under “Text Messaging” to read and delete one or more messages.

Category Questions

First, make sure that a SIM card is inserted into the phone. Second, check to see that the antenna is fully attached, fully extended and vertical, and that the phone is outside with a clear view of the sky. Then, turn the phone off and then on again and wait for the phone to register. Placing a test call (+1 480 752 5105) can also ensure successful registration.

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