Must be Able to be Activated on Ting - Verizon is an MVNO for Verizon.
      How to Check
            Go To: --> "Check your phone",   and enter your phone's IMEI

How to Find Your Phone's IMEI
      see: Swappa FAQ
      or:   dial "*#06#" on the phone

Must have an Unlocked Bootloader

      How to Check for an Unlocked Bootloader
            Turn on Developer Mode
                  Settings -> [System] -->About phone --> tap on "Build number" 7 times
            How to tell if you are already a Developer
                  a message will tell you on the first tap
            How to tell if your Bootloader is unlocked
                  Settings --> [System] --> [Advanced] --> Developer options --> OEM unlocking,
                      and slide the button to the right

      If "OEM unlocking" is absent, grayed out or does not slide your bootloader is NOT unlocked.

      [extra step] - some versions of Android have extra steps

Please tell me your Phone's Codename
        Every cellphone model and variant has a unique codename.
      I am particularly interested in these phones:
            Make/Model           Codename
            Pixel XL                 marlin
            Pixel XL2               taimen
            Pixel 3                   blueline
            Pixel 3 XL             crosshatch
            Pixel 3a                 sargo
            Pixel 3a XL           bonito
            Pixel 4                   flame
            Pixel 4 XL             coral
            Pixel 4a                 sunfish
            Pixel 4a 5G           bramble
            LG G3                   d855
            LG G5                   d850
            Moto G7               river
            Moto G7 Plus       lake
            Samsung Galaxy S7               herolte
            Samsung Galaxy S7 Edge      hero2lte
            Samsung Galaxy S8               dreamlte
            Samsung Galaxy S9               starlte
            Samsung Galaxy S9+             star2lte

How to Find the Codename
      On most Android phones.
      Power Off
      Press and hold the Volume Down button.
      Press and hold the Power On button
      The phone will boot to "Fastboot Mode", with the Android robot lying on its back.
      The line: "Product/Variant:   <codename>...", has the codename.

Msg to Sellers