Does flashing iphone firmware erase user data?

[mjohns123]

Have an iphone 5 that is stuck at the apple logo, but got it into dfu mode. If I flash it, will it erase user data? Is there a better way to try to get back to boot up so I can recover data? Don't have itunes backup.

Thanks

[Lily Lee]

Did you check the box: retain user's data while flashing? If you did, your data will be retained.

[mjohns123]

Thank you

[Tiana11]

To fix your iPhone stuck on Apple logo, you could try the best alternative, TunesKit iOS System Recovery. Why? Because this software can fix your iPhone whatever in Apple logo, DFU mode and other circumstances. And the most important one is that it won't cause you any data loss while downloading the firmware package matched with your iPhone before getting out of trouble.