Rear camera won't work!

[tnq13]

My fiancé bought an X5 Max Pro it has no more than 30 days.

The camera app crashed, we had to close it and when we've opened it again, only the front camera is working and it's flipped vertically.

There is no deal to make the rear camera works. Tried to wipe app data already.

Any idea of what would be of help?

Thanks