I'm very sorry to hear about your loss. Unlocking a phone without losing data can be a challenging task, but there are some methods that might help you in this situation. Here are some steps you can try to bypass the screen lock on a Samsung A14 5G without losing any data:
1. Google Find My Device: If your uncle had enabled Google Find My Device on his phone, you can use this service to remotely unlock the phone. You can visit the Find My Device website on a computer or another device, sign in with your uncle's Google account, and then select the option to unlock the phone.
2. Samsung Find My Mobile: If your uncle had set up Samsung Find My Mobile on his phone, you can also use this service to remotely unlock the device. Visit the Find My Mobile website, log in with your uncle's Samsung account, and then choose the option to unlock the phone.
3. Contact Samsung Support: You can try reaching out to Samsung support for assistance. They may be able to help you unlock the phone without losing any data, but be prepared to provide proof of ownership and other necessary information.
4. Professional Service: If the above methods don't work, you can consider taking the phone to a professional service center. They may have tools and expertise to unlock the phone without data loss.
Please keep in mind that these methods may not work in all cases, and there is a risk of data loss when attempting to bypass a screen lock. It's important to respect your uncle's privacy and only proceed with unlocking the phone if you have the legal authority to do so.