As the new Windows 10 for phones build 10052 released, many of you may not able to update. On some Lumia, such as Lumia 830, the error message says: “The update was downloaded, but couldn’t be opened. (80188302)” (for OS version 10.0.12534.56).

fix update error 80188302 on Windows 10 for phones
How to fix it?
Here are 2 solutions you can follow to update your device successfully:
1. Try turn off your phone and wait for few minutes and turn it on again and check whether problem reproduces or not.

2. Just go to Windows Insider App (on your phone) and re-enroll in the program. It’ll start downloading a new build.

Hope that you’ll be pleased with the new Windows 10 on your phones. If you have any concern, feel free to leave a comment below.