What to do if my Huawei Cell Phone cannot be powered on?
If your Huawei Cell Phone won't power on, ensure that it has adequate battery power, the battery is properly installed, and that you press and hold the power button for 3 or more seconds.
What to do if Huawei Cell Phone cannot find Bluetooth devices?
If your Huawei Cell Phone cannot find other Bluetooth devices, ensure that: 1. Bluetooth is turned on for both devices. 2. The devices are within 10 meters of each other. 3. There are no obstacles between the devices. 4. The other Bluetooth device is set to visible.
How to fix a Huawei U3900 that will not power on?
If your Huawei Cell Phone cannot be powered on, please ensure that: 1. The battery has sufficient power. 2. The battery is correctly installed. 3. Press and hold the power button for about 3 seconds.
Why is my Huawei U3900 not getting good reception?
Poor reception on your Huawei Cell Phone may be due to your location. Move to a location with better reception.
What to do if my Huawei Cell Phone cannot make any calls except emergency calls?
If your Huawei Cell Phone can only make emergency calls, make sure you are within your service provider's network coverage area and that the call restriction function is disabled.
Why is the call quality bad on my Huawei Cell Phone?
If you are experiencing bad call quality on your Huawei Cell Phone, ensure that the signal strength is strong enough. If you are indoors, try moving closer to a window.
What to do if Huawei U3900 cannot connect via Bluetooth?
If your Huawei Cell Phone cannot find other Bluetooth devices or fails to send or receive data via Bluetooth, ensure that: * Bluetooth is turned on for both devices. * The devices are within 10 meters of each other. * There are no obstructions between the devices. * The other Bluetooth device is set to visible.
What to do if my Huawei Cell Phone can only make emergency calls?
If you cannot make calls (except emergency calls) on your Huawei Cell Phone, make sure that: * You are within a network service area. * The call restriction function is disabled.
General| Brand | Huawei |
|---|---|
| Model | U3900 |
| Category | Cell Phone |
| Language | English |
Step-by-step guide to inserting the SIM card and battery.
Instructions on how to make phone calls, including international calls.
Enabling, disabling, and changing the phone passcode.
Restoring the phone to its original default settings.
Solutions for issues related to battery charging.
Troubleshooting steps for a phone that won't turn on.
Precautions for handling, environment, specific locations, and traffic.
Safety guidelines for chargers, batteries, traffic, and flammable areas.
Warnings about using the device where prohibited or near medical equipment.
Safety recommendations for using the phone while driving.
Guidelines for phone use in different environments.
Safety guidelines for connecting, using, and maintaining the charger.
Precautions for handling, charging, and disposing of batteries.
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