On August 23, 2018 EOBOT shared the news that,
"GHS 4.0 will soon be paused due to BTC mining difficulty increases and price drops, resulting in a fee over 100%. It will be entering the hardware redemption period and we can mail your hardware home if you choose."
Official Website’s Link
https://www.eobot.com/news
Official Twitter’s Account Link:
https://twitter.com/eobot