After pressing and holding the power button, the phone does not seem to respond at all.

Cell phone batteries do not remain functional forever. It may be that you have not charged your phone and charging it for a time will be enough for the phone to turn on. However, over time the battery loses its capacity to hold charge after countless charge and discharge cycles. If your phone will not consistently hold its charge, you may need to purchase a new battery to replace the old one. Please follow this link for steps to replace the battery: LG CU515 SKU 64743 Device Battery Replacement.

A phone may not turn on if there is a malfunction with the motherboard. A loose or broken connection with the power button may prevent communication with the motherboard from occurring. Please follow this link for steps to replace the motherboard: LG CU515 SKU 64743 Device Mother Board Replacement.

If your cell phone will not turn on, it is possible for there to be a defect in the battery charger. You may need to check the charger to determine if a new one needs to be purchased. Your cell phone provider should be able to test both the battery and the charger to determine which is not functioning correctly.

The phone is on but the screen display is either black, white, or faint.

The brightness of the backlight can be controlled under settings. It may be that the backlight is on a low setting so check there first. If the back light for the screen is broken or no longer receiving power, it should be replaced or repaired. Please follow this link for steps to replace the LCD screen: LG CU515 SKU 64743 Device Replacing LCD Screen Replacement.

A phone screen may appear black, white or faint if there is a malfunction with the motherboard. A loose or broken connection with the screen display may prevent communication with the motherboard from occurring. Please follow this link for steps to replace the motherboard: LG CU515 SKU 64743 Device Mother Board Replacement.

Cell phone screens may be damaged during the phone’s operable life. Over time the screen may incur surfaces scratches or even cracking. If your phone screen is unreadable, you may need to purchase a screen to replace the old one. Please follow this link for steps to replace the screen: LG CU515 SKU 64743 Device Phone Screen Replacement.

After entering a number and pressing the green “send” button, the call will not connect or an error message is displayed.

Check phone for SIM card. If there is no SIM card, you must purchase one in order to make calls from the phone. If you have a SIM card and are still not able to make phone calls, the SIM card may be damaged. Check the SIM card for any scratches or visible defects and if found, talk to your carrier about ordering a replacement. Please follow this link for steps to replace SIM card LG CU515 SKU 64743 Device SIM Card Replacement.

If you have not paid your phone bill, your carrier may have temporarily suspended your service. Check with them to see if you missed a payment.

Your service provider has a map of their service locations. If you cannot make a call, it may be that you are not in one of these locations. You must change your location so that you can have service to make a call. Please follow the link to show you how to see if you are in a serviced area: http://www.att.com/network/?WT.srch=1&wt….

The phone seems to fully charge, but loses battery life very quickly.

Cell phone batteries do not remain functional forever. Over time the battery loses its capacity to hold charge after countless charge and discharge cycles. If your phone will not consistently hold its charge, you may need to purchase a new battery to replace the old one. Please follow this link for steps to replace the battery: LG CU515 SKU 64743 Device Battery Replacement.

If your cell phone battery is not holding a charge, it is possible for the battery to be working properly while the battery charger is not working. You may need to check the charger to determine if a new one needs to be purchased. Your cell phone provider should be able to test both the battery and the charger to determine which is not functioning correctly.

If the above options do not enable the phone to hold a charge, or if the costs of performing the above options is not worth the benefit, it may be better to replace the phone entirely. Before purchasing a new phone, check to see if your current phone is under warranty.

One or more of the keypad buttons are not responding when pressed.

A common cause for a keypad malfunctioning is dirt or debris being trapped within the keypad. The keypad can be cleaned with appropriate electronic cleaning devices. Please follow the link to dismantle the phone so that the keypad can be cleaned: LG CU515 SKU 64743 Device Key Pad Replacement

One possible explanation is that the keypad itself is broken. Please follow the following link for steps to replace the keypad: LG CU515 SKU 64743 Device Key Pad Replacement.

A keypad may not work if it is not properly communicating with the motherboard of the phone. A loose or broken connection may prevent communication from occurring. Please follow this link for steps to replace the motherboard: LG CU515 SKU 64743 Device Mother Board Replacement.

When the phone is flipped open, the outside screen remains on while the inside screen does not come on. (or vice versa)

It is common for dirt or debris to become trapped in the hinge area of the phone. This prevents the hinge from communicating with the motherboard that the phone is open/closed. Following the first step in this link to take the phone apart and properly clean the hinge area: LG CU515 SKU 64743 Device Front Cover Replacement.

The hinge may also not communicate with the motherboard if there is a faulty connection. Please follow this link for steps to replace the motherboard: LG CU515 SKU 64743 Device Mother Board Replacement.

Sound from the phone is very low quality, very low, or mute.

Make sure the phone’s speaker setting isn’t on low volume or in silent mode. This can be adjusted in the phone’s volume settings.

Check to make sure that there is not any kind of dust or debris that could be covering the surface of the speaker which could prevent sound from being easily heard from the phone. This can be removed with a pair of tweezers to allow sound to come from the phone easier. Please follow this link to clean the speaker: LG CU515 SKU 64743 Device Replacing LCD Screen Replacement.

If the speaker’s volume is turned up but the problem remains, the speaker could be damaged and it may need to be repaired or replaced. Please follow this link to replace the speaker: LG CU515 SKU 64743 Device Replacing LCD Screen Replacement.

Callers on the receiving end of this phone are having difficulty hearing the caller speak.

Make sure the phone’s microphone setting isn’t on low volume or mute. This can be adjusted in the phone’s volume settings.

There could be a connection error between the microphone and motherboard which could prevent the phone from transmitting what the caller is saying or cause poor sound quality. Please follow this link for steps to replace the motherboard: LG CU515 SKU 64743 Device Mother Board Replacement.

The phone is taking poor quality pictures or not taking any pictures at all.

Check to make sure there is not dust or debris covering the camera lens. This would prevent the phone from taking clear pictures. A thorough cleaning may solve the problem. Please follow this link for steps to clean the camera lens: LG CU515 SKU 64743 Device Camera Lens Replacement.

If the problem persists after clearing the lens of dust/debris, the camera could be damaged. Please follow this link for steps to replace the camera lens: LG CU515 SKU 64743 Device Camera Lens Replacement.

If the phone’s memory is full, the phone won’t take and store additional pictures. Transfer the pictures on the phone to another memory card or delete some of them. Please follow this link for steps to replace memory card LG CU515 SKU 64743 Device SIM Card Replacement.