编辑 AirCard 770S Troubleshooting

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Released January 2013, identified through model number ASSET 5-9254

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== Device will not charge ==

''The device runs out of battery quickly, ‘No Battery Error Appears.’''

=== Faulty charger ===

Plug the charger into device. If properly inserted, a red light should blink periodically indicating that it is charging. If the light does not blink periodically, the charger may be faulty. Replace the charger.

=== Faulty battery ===

First, make sure the battery is charged. If the device is not fully charged, the device can appear to be broken by not turning on. When charging the device, make sure the cord is inserted into the device correctly. A red light should blink periodically as it is charging. Before trying to turn on the device again, make sure a SIM card is inserted into the device. If the device is still not working, try buying a new battery to replace the old one. The guide to replacing the battery can be found here: [guide|114271]

=== Faulty cooling system ===

When charging the device, if it begins to overheat, factory reset the device. If the reset of the device does not help the overheating problem, purchase a replacement battery and follow instructions for replacement. The guide to replacing the battery can be found here: [guide|114271]

== SIM Card not working ==

''I can’t get the SIM Card to insert into the device. 'My SIM Card is broken.'''

=== SIM Card is not inserting into the device ===

In order for the SIM Card to operate properly it must be inserted correctly and fit in the SIM slot. To check if the card is inserted correctly, open the cover that secures the SIM Card, take it out and push it back in. The SIM Card should not stick out and if it does, it is not the correct size.

=== Faulty SIM Card ===

A sign that says "Error Code 0” flashes on screen, which signifies that the SIM Card is not being recognized. In order to fix this error, take out the SIM Card and put it back in. Then,  power the device back on. If the error code appears again, it may be filled or damage and need to be replaced. With this, order a new SIM Card of the same size and follow the guides for replacing and unlocking a new SIM Card.

=== SIM locked ===

If the SIM Card is “locked,” contact the ISP/carrier (http://attunite) and follow their instructions to go to the Mobile Hotspot Homepage. Here, you will login and be given the information from your carrier under the “Administrators Page." Then, enter the PIN your carrier gives for your specific SIM Card and this should unlock it and give you access to your device. If this does not resolve the problem, then contact your ISP/carrier again  and explain that the process did not work. The carrier should give you a separate set of instructions or cause you to need to replace the SIM Card with a new one.

The guide to replacing the SIM Card can be found here: [guide|114583]

== Wi-Fi won’t connect to device ==

''My device will not connect to my Wi-Fi.''

=== Username or password is invalid ===

Make sure the username and password that you are trying to connect with the device are correct. Depending on your service provider you may need to check your username, password, and/or APN (Access Point Name).

=== Connection profile not set up ===

In order to connect the Wi-Fi hotspot to an Internet connection, a connection profile must be established. By logging into the Unite Manager homepage as administrator and finding “APN” in settings, a network connection can be authenticated. By setting up a new APN, the Wi-Fi hotspot should gain connection. Once the APN is set up the mode must be set to “Active” by selecting the tab.

== Device won’t unlock ==

''I can’t use the device because it won’t unlock.''

=== No unlock code ===

If your device won’t unlock, contact AT&T in order to receive an unlock code.  Also, make sure your SIM card is correctly inserted into the device and the battery is fully charged before trying to unlock it. After using the unlock code and unlocking your device, remember to create a connection profile before you start using it.

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