Q：The power button is missing on the U10/U9 model, and the back cover is cracked or detached.
A：Dear user, we sincerely apologize for this issue. To make this product more robust and durable, a tightly fitting back cover was added during the design process. Pulling too hard when removing the cover may cause the back cover to crack, potentially causing the button to fall into the casing. If this happens to you, please remove the fallen button, reinstall it, and re-close the back cover. Functionality will not be affected. If the button cannot be found, we can send you a replacement. We will record your issue in detail and report it to the relevant personnel to continuously optimize the product experience. Thank you for choosing Doug products!
