Open the Alexa app on your phone, then tap Settings (the cog icon).
Select 'Set up a new device' to start the Wi-Fi connection process.
Next, select which Amazon Echo speaker you want to set up.
Select your Echo device, and then pick the correct language from the next page.
Then select 'Connect to Wi-Fi' from the next page to continue the set up process and get connected:
first, the instructions ask you to check that the device is currently displaying an orange ring.
If not, you'll have to hold the 'action button' for five seconds first to put the device into setup mode. With that done, you'll need to hop out of the Alexa app and into your phone's own settings menu.
Go to Wi-Fi settings. Turn on Wi-Fi (if it's not on already), then select the Amazon Echo device from the list of access points – the Echo's name should start with the word "Amazon". Once connected, go back into the Alexa app.
The Alexa app should now say it is connected to the Echo. Tap 'Continue', then select yours from the list, then enter your Wi-Fi password.
Tap 'Connect' in the app once the password ***** ***** in. Once it is done you should be taken back to the settings menu, with your Amazon Echo now listed as being online. On the device itself, the light ring should turn off.