Interface changes, pop-ups, login status, input methods, and unclear goals may deviate from the process. Failure does not necessarily mean that the model cannot be understood at all.
Understand the essentials
Each step seems to be a small deviation, but after long tasks accumulate, it will reach the wrong position or lose conditions.
A practical example
Hypothetical example: if a notification blocks a button, subsequent AI clicks may affect the wrong control.
What to check or try
- Shorten tasks.
- Fixed initial state.
- Record failed links.
- Added intermediate checks.
- Repeat the test using the same conditions.
Classifying errors as misreading, misclicking, typing errors, status changes, or deviations in goal understanding will be more helpful than just reporting failures. Change one factor at a time, then repeat the same task. If the task itself does not have a clear correct answer, the acceptance criteria must be changed first.
An easy-to-miss detail
Don’t just keep successful videos, the number of failures and manual repairs are also part of the experience.
Continue reading
- What is ADB, and do everyday users need to learn it?
- Learning app testing on a cloud phone: what to test
Back to Cloud phones: AI and practical learning
Notes and further reading
Tencent Cloud Phone Computer Use Agent tutorial；AndroidWorld project page。
This introductory guide was prepared by 51Yunji from public information with AI-assisted drafting. Examples are hypothetical, not hands-on product tests or promises of results. Follow the current product, version and official instructions for specific features and procedures. Compiled on October 26, 2026.