I didn't have any problem so far. However, I decided to increase the memory (RAM) and also change the hard drive, replacing it with a SSD hard disk. I also took off the optical drive in order to add a 2nd SSD hard disk.
Thanks to your repair guides, I managed to do the job without damaging any part of my Macbook Pro.
read carefully the repair guide before starting. It is important to have good tools (screw drivers...).