When doing some maintenance work on a Lenovo Thinkpad (like installing RAM), the manual instructions recommend using new screws. Is that so important?
If I decide to use new screws, what screws exactly should I use? Lenovo does not offer 'official screws'.
And what screwdriver would be the most apt for the work? I see that a common household Phillips screwdriver just fits, but wonder whether it would be better to use a JIS or Pozidrive? What tool would do the cleaner job?
My particular laptop does not have a service bay to replace HDD or RAM, you just have to pry open the whole back part. So I assume I'll could be opening it for new HDD soon, then new RAM sometime, new battery, clean the fan.
I hope this question is not too trivial, but I just don't want to screw the new laptop.