How do I recover lost data without backup?

Hi everyone,

I’m looking for help regarding a serious data loss issue on my iPhone 13.

Due to a battery swelling problem, I was unable to properly use the phone or create a backup. I attempted to back up and update the device using iTunes, but every attempt failed.

I also tried using a third-party iOS system repair tool (paid version), but that didn’t work either.

As a last resort, I used iTunes to restore the device, which resulted in a factory reset. After that, I submitted the phone to the Apple Support Store for battery replacement.

Now I’ve lost around 3 years of important data, and I’m trying to understand:

Is there any way to recover data after a factory reset in this situation?

Does Apple have any internal method or service that could help recover data?

Are there any reliable recovery options I can still try?

Unfortunately, I did not have an iCloud or local backup before the reset.

This data is extremely critical to me, so I would really appreciate any guidance or suggestions.