not able to activate my iphone 5s after update and restore

See if anything here helps. 

iPhone – Won’t activate.        

iPhone/iPad - No Service or Searching.  

iPhone - If you can't make or receive calls

iPhone - If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

See this Apple article: If your Apple ID is locked or disabled

If your Apple ID is locked or disabled - Apple Support (CA)

👉 Get a verification code and sign in with two-factor authentication

Get a verification code and sign in with two-factor authentication - Apple Support

FYI: iPhone 5 is an outdated iPhone (September 21, 2012), can’t be update to a higher iOS.

iOS 10.3.4 is the latest iOS update -> released July 22, 2019.

See also -> How to remove Activation Lock

How to remove Activation Lock – Apple Support (UK)

• If you need help with removing Activation Lock and have proof of purchase documentation, you can start an Activation Lock support request. 

You can also contact Apple support for help, -> Get Support (apple.com)

You have to show proof of ownership of your product, provide all documentation showing your purchase of the device.

If you do not have additional proof of ownership, contact the reseller. They may be able to provide the original purchase document.

Once Apple receive your proof of ownership, Apple will further review your request and provide an update.