How can I format my Galaxy S5?

[AC Question]

i want to format my galaxy s5 samsung

my samsung galaxy s5 was displayed the message google play services is denied to read mms or sms like.
and how to update my software?
and my phone has not in the option UPDATE SOFTWARE

 

[B. Diddy]

Re: i want to format my galaxy s5 samsung

Welcome to Android Central! That doesn't sound like a normal error message. What was the exact error message?

If the phone doesn't have an option to update the software, it's either been rooted and flashed with a custom ROM, or it's a clone/knockoff, and not a genuine Samsung. What's the model number?