In case your device is broken or damaged, consider the following steps:

Factory reset - Your device may start acting strange and having various performance issues (working too slowly, showing too many errors, certain apps or features not working). In case you cannot resolve these issues by restarting the device and/or clearing the cache, running an antivirus or antimalware check, or updating your device software, drivers, or operating system, a factory reset might be a solution.

Be aware that If you run a factory reset on your phone all the data will be lost, so make sure to back up any important data before proceeding. See more information from Google on how to do a factory reset on Android devices or Apple’s support page on how to do the same on iOS-based devices.

Repair shop - If resetting your device to factory settings did not resolve the issues you experienced, it might be best to take the device to a repair shop. Before you do this, it is important to back up any data on your device and also make sure to protect your device, sensitive files, and apps with a password or a PIN.

Before choosing a specific repair shop, do a simple online search and try to find the ones with the best online reviews and positive comments.

Data recovery tools - In case your files are lost or you accidentally deleted them and you don’t have a backup, there are data recovery tools that can help you. Unless the data was deleted with an advanced tool such as Eraser, conventional data recovery tools might help you restore files.

Recuva is a data recovery software for Windows which has both free and paid versions. For an average user, the free option should be enough to recover deleted files and it also works with memory cards, external hard drives, and USB sticks. Disk Drill, another recovery tool with a free plan, also works for MacOS in addition to Windows.