Start with a polite opener, state the need briefly, show the problem, then thank them.
A polite opener changes everything.
If you need help but freeze on how to begin, a simple script unlocks it:
Strangers are usually willing to help; the hard part is the first polite sentence in Chinese.
Every case shows the diagnosis and the first step - free. The full step-by-step fix for this exact case, the decision tree, and the offline kit are $9.99.
When you freeze on how to ask, the kit gives the opener-to-thanks script in clear Chinese.
The polite opener and help phrases, with when to use each.
Which situation needs which phrase.
The whole phrase kit as a printable card.
If they still seem unsure:
Most travellers know about three of these before they fly. This one is often not one of them.