I need to find out my text message history from last weekend
In the Messages app, go to the thread (person) of interest and scroll up.
Your most recent conversations are at the top of the conversation list.
If you want detailed send and receive info for each text message - for SMS/MMS only with your carrier, contact your carrier. I can view such detail by logging in with my ATT account at their website.
What if I have no contact name just phone number
Doesn't matter... the answer is the same. Perhaps you could explain in a little more detail what you're trying to do.
All text messages with the iPhone are stored in conversation format. All text message sent and received with the phone number will be in the conversation for that number.
Trying to find deleted messages from April 19 the to Sunday the 21 st
Why didn't you just ask that then? If you have a backup after the 21st and before they were deleted, they'll be in that. If not, then they're gone.
Ok so what is the icon I am looking for to get the old text messages
There's not one. All mesages are in the Messages app.
How do I find the back up on my iPhone
A backup is either in iTunes on your computer or in iCloud. If you don't know this, you probably didn't back it up. It's not done automatically.
Ok so when I go on my means sage app what do I do next
Ok so my phone is backing up after its done will it shows all text messages from April 19 to the 21 st
No. You're just backing up your current data, not data from april 19 to 21...
Retrieving data ...