How do I setup a static IP?

[Sofia Shepherd]

how to setup a static ip

well me and my husband both have samsung galaxy centuras that run on android version 4.0.4 and his has a wifi hotspot that works alright my phone however will not obtain the ip address for his wifi iv been thinkin about going static ip cuz no matter wat i do it still wont obtain ip address would i use the ip address of my husbands phone since my phone says its ip is unknown