text: Solved: Hero 4 Session - GoPro Support Hub
  ‎10-27-2019 08:50 PM
  Where can I purchase a lens replacement? And tools
  Re: Hero 4 Session
  Sorry, we just checked and we see that the Lens Replacement Kit is available through our Clearance and Refurbished Shop. See https://gopro.com/en/us/shop/accessories/lens-replacement-kit/ARLRK-002.html
  ‎10-28-2019 06:47 AM
  Hello @jackvm10. We do not sell the Lens Replacement for HERO Session anymore. You may check with authorized sellers or local retailers for availability. You can use the Store Locator link to search nearest stores to you.