Change Mobile / Wi-Fi Hotspot Password - HTC Desire® 626
If you'd like to change the default password other devices use to connect to your Mobile Hotspot, check out the steps below.
From a Home screen, navigate: Apps icon > Settings > Mobile Hotspot & Tethering.
Tap Mobile Hotspot.
If presented with Mobile Hotspot info screen, tap OK.
Tap the Password field then enter the preferred password.
If the field is greyed out, tap the switch to turn off Mobile Hotspot.
Password must be at least 8 characters.
The new password must be entered on the connecting device.
Check out these FAQs for additional support on Mobile Hotspot or if you're prompted to add it.