ECHO & DOT COMPLETELY RESET START AGAIN

[hrpuffnstuff]

AS THE SUBJECT.
I need to completely reset, start again both my echos

WHY?
I brought them from the UK (and the app) to the Philippines where they worked for a while but now they are erratic
BOTH dont respond to my voice or commands, say the cant connect to this and that...so I would like to do a complete 'format'

[AlanH]

https://www.amazon.com/gp/help/customer/display.html?nodeId=GG9C29YKRS469696

[jwlv]

I don't know if this has changed, but in the past if you move your Echo device to a different country/region, you need to contact Amazon customer service to reset the country/region. You can change it in the Alexa app device settings and it'll look like it has updated your region, but skills, content, and other stuff will still be from the original region.