missing data & photos

Are the files being written to a MicroSD card? If so, you might be a victim of flash fraud; something where the capacity of the storage is actually a lot lower than it is advertised to be. You can use a program like h2test to write files up until the full capacity of the card, and then have it read all the data back to verify its true capacity. There are other alternatives out there, but it is the most reliable (and slowest) method. Plus you would want to make sure to keep a backup of all the files on it.

Many reasons can result in data loss. They can be deleted by some clean app, software update, or a system error. So you should backup the important data in advance. Checkout your Google account, maybe you have synced the data.

You can try a data recovery program to scan your phone and restore lost text messages from it. Only a few steps you can recover missing data from your Android LG phone.