My phone caught on fire and now the scree is black but everything still works how do i fix this help guys please

Samsung Galaxy Avant 4G no contract phone: device caught on fire, everything still working except screen is black:

Hello. The question is how did it catch on fire? If we can answer this then we can proceed with what to do

Here is the section from the manufacturer:

Battery Use and Safety

Important! Handle and store batteries properly to avoid injury or damage. Most battery issues arise from improper handling of batteries and, particularly, from the continued use of damaged batteries.
Do not disassemble, crush, puncture, shred, or otherwise attempt to change the form of your battery. Do not put a high degree of pressure on the battery. This can cause leakage or an internal short-circuit, resulting in overheating.Do not let the phone or battery come in contact with liquids. Liquids can get into the phone's circuits, leading to corrosion. Even when the phone appears to be dry and appears to operate normally, the circuitry could slowly corrode and pose a safety hazard. If the phone and/or battery get wet, have them checked by your service provider or contact Samsung, even if they appear to be working properly.Do not place your battery in or near a heat source. Excessive heating can damage the phone or the battery and could cause the phone or the battery to explode. Do not dry a wet or damp battery with an appliance or heat source such as a microwave oven, hair dryer, iron, or radiator. Avoid leaving your phone in your car in high temperatures.Caution: Some applications or prolonged usage may increase device temperature. Prolonged skin contact with a device that is hot to the touch may produce skin discomfort or redness, or low-temperature burns. If the device feels hot to the touch, discontinue use and close all applications or turn off the device until it cools. Always ensure that the device has adequate ventilation and air flow. Covering the device with bedding, your body, thick clothing or any other materials that significantly affect air flow may affect the performance of the device and poses a possible risk of fire or explosion, which could lead to serious bodily injuries or damage to property.Do not dispose of the phone or the battery in a fire. The phone or the battery may explode when overheated.Do not handle a damaged or leaking battery. Do not let leaking battery fluid come in contact with your eyes, skin or clothing. For safe disposal options, contact your nearest Samsung-authorized service center.Avoid dropping the cell phone. Dropping the phone or the battery, especially on a hard surface, can potentially cause damage to the phone and battery. If you suspect damage to the phone or battery, take it to a service center for inspection.Never use any charger or battery that is damaged in any way.Do not allow the battery to touch metal objects. Accidental short-circuiting can occur when a metallic object (coin, key, jewelry, clip, or pen) causes a direct connection between the + and - terminals of the battery (metal strips on the battery), for example when you carry a spare battery in a pocket or bag. Short-circuiting the terminals may damage the battery or the object causing the short-circuiting. Important! Use only Samsung-approved batteries, and recharge your battery only with Samsung-approved chargers which are specifically designed for your phone

WARNING!
Use of a non-Samsung-approved battery or charger may present a risk of fire, explosion, leakage, or other hazard. Samsung's warranty does not cover damage to the phone caused by non-Samsung-approved batteries and/or chargers.
Do not use incompatible cell phone batteries and chargers. Some websites and second-hand dealers not associated with reputable manufacturers and carriers, might be selling incompatible or even counterfeit batteries and chargers. Consumers should purchase manufacturer or carrier-recommended products and accessories. If unsure about whether a replacement battery or charger is compatible, contact the manufacturer of the battery or chargerMisuse or use of incompatible phones, batteries, and charging devices could result in damage to the equipment and a possible risk of fire, explosion, or leakage, leading to serious injuries, damages to your phone, or other serious hazard. UL Certified Travel Charger

The Travel Charger for this phone has met applicable UL safety requirements. Please adhere to the following safety instructions per UL guidelines:

FAILURE TO FOLLOW THE INSTRUCTIONS OUTLINED MAY LEAD TO SERIOUS PERSONAL INJURY AND POSSIBLE PROPERTY DAMAGE.

DANGER - TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFULLY FOLLOW THESE INSTRUCTIONS.

FOR CONNECTION TO A SUPPLY NOT IN NORTH AMERICA, USE AN ATTACHMENT PLUG ADAPTOR OF THE PROPER CONFIGURATION FOR THE POWER OUTLET. THIS POWER UNIT IS INTENDED TO BE CORRECTLY ORIENTED IN A VERTICAL OR HORIZONTAL OR FLOOR MOUNT POSITION.

Taken from:
http://www.samsung.com/us/Legal/Phone-HSGuide
which is included in the Samsung Galaxy Avant User Manual:
https://www.metropcs.com/content/dam/mpcs/faqsandsupport/samsung/Samsung%20Galaxy%20Avant%20User%20Manual.pdf

How to proceed:

1. You could, if for any reason the phone caught on fire, including the above scenarios contact Samsung direct, just so that they are aware this incident happened. Even if it was your fault, they should know that it happened. The manufacturer may ask you to ship it back to them.

This is the contact info:

Samsung Telecommunications America (STA), LLC
1301 E. Lookout Drive Richardson, TX 75082
1-800-SAMSUNG (726-7864)
1-888-987-HELP (4357)
Electronics Appliances Tablets Laptops Phones TVs Samsung US

2. Outside of contacting the manufacturer, you could take it to your local repair shop and ask them for a damage assessment or to diagnose the repair of the device. There maybe more than just the screen that is damaged inside the case. Cost could exceed $300 in damages.

3. You could also take it to your Service Provider's local store and tell them that it caught on fire. Ask them if you can get a replacement and a temporary phone if need to wait for the replacement. If you have insurance on it, you should be covered. If not, it's up to whatever they say. Doesn't hurt to ask.

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