Products not work well?

If the product you bought from us may be not work, please contact us to get help, state your PI number and the product model. Describe clearly what you are trying to do with the product and what goes wrong, provide photos if the defect is something visible.

The product has 1 year guarantee, during this warranty period, we can help you to solve the problem instead of return it back. If something goes wrong beyond this warranty period, you can also contact us to get support.

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