Unable to update watchOS 10.4? Here’s how to fix it

watchOS 10 introduced some cool new features to Apple Watch Series 4 and later, with NameDrop being my favorite. However, many users were unable to update to watchOS 10.4, the latest version of the software.

If you are also seeing errors like “Unable to Check for Update” or “Unable to Install Update” on your Apple Watch, here are the fixes you should try.

1. Perform the basic checks

Now that you know your Apple Watch supports watchOS 10.4, it is essential to satisfy certain conditions before getting started with the update process.

2. Restart your iPhone and Apple Watch

Restarting your Apple Watch can often fix minor software glitches. Since the Apple Watch is updated via the Watch app on iPhone, you must restart both Apple Watch and iPhone.

Restart Apple Watch

1. Press and hold the Side button → Select the Power icon. 
2. Drag the Power Off slider to the right to turn off the Apple Watch. 
3. After a minute, to restart, press & hold the Side button until the Apple logo appears on the screen.

Restart iPhone

1. Press and hold the Power and one of the Volume buttons simultaneously until the Power Off slider appears.  
2. Drag the Power Off slider to the right to turn off your iPhone. 
3. Wait for a few seconds, then press & hold the Side button until the Apple logo appears on the screen.

If a normal restart doesn’t do the trick, or if you get hung up during the process, you may even consider giving your iPhone a hard reboot.

3. Free up space on your Apple Watch

Just like on your iPhone, not having enough storage space on your Apple Watch can hinder the software update process.

So, it is important to make sure that the Apple Watch has sufficient storage space to accommodate the watchOS 10.4 update file. To check:

1. On your Apple Watch, go to Settings → General. 
2. Scroll down and select Storage.
   Wait for the Apple Watch to calculate the storage.
3. If the available storage is low, delete the unnecessary apps and data from your Apple Watch.

Once you free up space on your Apple Watch, try updating it to watchOS 10.4 again.

4. Delete the update file and re-download it

While chances of this happening are rare, sometimes the update file can be corrupt or may have been incomplete. In that case, deleting the update file and reinitiating the update process can help.

1. Open the Watch app on the paired iPhone and ensure you are in the My Watch tab.
2. Tap on General → Storage → Software Update and delete the downloaded update file.
3. Restart the devices.
4. Open the Watch app → General → Software Update to download and install watchOS 10.4.
   
   

5. Unpair and Pair the Apple Watch

If you are having trouble updating to watchOS 10.4, try unpairing your Apple Watch and then re-pairing it with your iPhone.  

This connection reset can help you troubleshoot any underlying issue that might be hindering the watchOS 10.4 update process.

6. Factory Reset Apple Watch

If everything else fails, you will have to restore the Apple Watch to its factory settings. This will make sure any bug that hampered the installation of watchOS 10.4 is removed.

1. On your Apple Watch, go to Settings → General.
2. Scroll down to Reset → Pick Erase All Content and Settings.
   
   
3. Enter your passcode to confirm your choice.

Signing off…

And that’s it; these are our tried and trusted solutions to fix the unable to update watchOS issue on Apple Watch. 

I hope that these troubleshooting tips help you overcome this frustrating issue. If you need further help, feel free to comment below.

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