How to change the USB port?

ggrappa you can download the maintenance manual for your Tab 2 from here. It'll aid with the disassembly. Of course you can also use this guide Remplacement de la carte mère du Lenovo Tab A10-70 After this the hardest part will be to desolder the broken Micro USB port from the motherboard, cleaning it and resoldering a new port. Not a terrible bad repair, for as long as you know how to solder, you'll be ok. If not then I would try to make contact with people that know how to do that. Depending on your location in this world, there are a few awesome skilled people on here that could help. Yes, replacement ports are available at places like this and many others.