Stuck on boot loop while activating

I just bought a brand-new iPhone 4S from a thrift store today and it worked for the first parts of the setup. It then went into it's activation process and went into iOS quickly. It then turned off with a message saying "Activation Required" I opened it again and does the same thing over and over again. Anything I could be able to do? I already tried a force restart and Recovery Mode (with my MacBook Air, 13-inch, 2020, Intel) and prompted me to do DFU. It took a little bit. It didn't reinstall iOS and is currently stuck on the Connect to iTunes screen. Any help?

Thanks,

wholovechromeMe