Originally Posted by android addicts
After I update my phone via ODIN, sms app (including stock app) doesn't show the contacts name. Instead of that it shows phone number.
You are making an assumption that the SMS apps should automatically scan your contact information and auto update. But you don't provide any history, context or details to even begin to guess if that is an accurate assumption. I'd assume that you'd need to manually update or import such information.
No doubt if you did a decent search, you'd discover which is the case in existing threads.
The suggestion to try clearing your cache is reasonable, try that first and see if it makes any difference.