Software update stuck on estimating time remaining hasn’t moved for three days

Hello Jbazaldua1018.

Welcome to Apple Support Communities. I understand that your software update has been stuck on estimating for 3 days. I’m happy to help.

Please restart your iPhone using the steps here: Restart your iPhone, iPad, or iPod touch - Apple Support

Once the iPhone has restarted, try to download and install the update again. If it’s still taking too long, please follow the steps in the section titled “If the download takes a long time” here: Get help with over-the-air iOS updates - Apple Support

If you’re still unable to update wirelessly, then follow the steps in the section titled “Update your device using iTunes” here: Update your iPhone, iPad, or iPod touch - Apple Support

Take care.