It's wired to here that Nokia does not have a service center in Mexico.
I shifted to windows phone, since I got a incredible experience with Nokia tablet (Lumia 2520), where I got it from UK.
However, I'm paying a heavy price with lumia 930, being a full time employee I do not have time to waste for the phone, where, for last one month I visited four times to the service centre and planning to visit again , next week to replace the motherboard.
My objective is to trade the Nokia phone immediately after the repair and shift to Apple.
As per your information, I think one of the mice is not functioning and needed an repair to fix the matter, since you don't have a service centre, please check with trustworthy mobile phone repair shop. As per my understanding, it's not a major repair.
After this bitter lesson, I will not recommend Nokia for anyone!