Hi @Peter-Zhou
Thank you for your reply.
For iOS connection, we have a tutorial post: [Tutorials] How to use Handy Scan with Wi-Fi Mode on your iPhone?
Please kindly noted that you need to make your Wi-Fi be “Not connected”, and after you open your hotspot, please remember to wait for several seconds until there’s a blue signal on the left top cornor.
Best Regards
Cassie