Unable to Verify this IPhone has a Genuine Battery Message

Flash Fix inc. Batteries will Not pop up this message on your iphone here is why:

Battery replacements should be performed only by technicians who have completed Apple service training and who use Apple genuine parts and tools. These service providers include Apple Authorized Service Providers, or Independent Repair Providers using genuine Apple parts. Don't attempt to replace the iPhone battery yourself. Replacements performed by untrained technicians might not follow proper safety and repair procedures and could result in improper replacement or repair. This could also damage the battery, cause overheating, or result in injury

If you see this message, the battery in your iPhone cannot be verified, and reported battery health information isn't available. This might be due to the installation of a battery that is not a new, genuine battery. This message applies to iPhone XS, iPhone XS Max, iPhone XR, and later.