I apologize for the inconvenience you have experienced with your iPad Pro (sixth generation) and the subsequent issues resulting from a third-party screen replacement. I understand the importance of having a functional device, and I am here to assist you.
Firstly, I highly recommend that you contact the third-party repairer immediately to inform them about the screen detachment and the Face ID sensor issue they caused. It is important to notify them of the situation so that appropriate actions can be taken to rectify the problems.
In the meantime, it is advisable to refrain from using the iPad Pro until it has been properly examined and repaired by authorized technicians. The fact that the screen fell out indicates that there may be underlying issues with the repair that need to be addressed. Continuing to use the device in this condition could potentially cause further damage.
To ensure the best possible outcome, I suggest contacting an authorized Apple service provider or visiting an Apple Store to have your iPad Pro inspected and repaired. Our trained professionals possess the expertise to accurately diagnose the problems and offer appropriate solutions. They will also be able to address any concerns regarding potential dust ingress that may have occurred during the incident.
Should you choose to wait until your appointment with an authorized service provider, I recommend storing your iPad Pro in a clean and safe environment to minimize the risk of further damage or debris ingress. Keeping the device powered off is a good precautionary measure.
Once your device has been examined by an authorized technician, they will be able to provide you with an accurate assessment of the necessary repairs and the estimated timeline for completion. They will also be able to address any questions or concerns you may have regarding the functionality and performance of your iPad Pro moving forward.
I apologize for any inconvenience this situation has caused and assure you that I am committed to resolving the issues you have encountered. Please do not hesitate to reach out to me or visit an authorized Apple service provider to ensure your iPad Pro is restored to its optimal state.
Thank you for your understanding, and I appreciate your patience in this matter.