My Samsung 6 phone stopped adding punctuation

[Android Central Question]

I've read some of the other posts and have seen some recommendations to make sure Google updates were current. Here's my dilema; when I purchased this new model phone, after 3 months there was a Google update notification. The phone when into this update and locked up not recognizing my Google sign in information. After almost 3 weeks I got a replacement phone (pre-owned/reconditioned) and immediately got the update screen when starting up. I am ignoring this and realize that it could be the problem, but am not willing to lose my phone's service again and who knows if I would be forced into buying a new one when this one is only a year old.