Hi guys,
I need help. I have purchased a new Inspire 2 a few days ago, and i am trying to upgrade firmware, but with no success.
It stops on 7% on DJI Assistant and on 25% on iPhone app. Code error is Undefined 0x152800. Can I have help to solve this? Thank you.

Make sure you're not having the issue where the drone disconnects itself if you're on the wrong Apple firmware. That kicked me out of the update a few times before I realized what was happening.

TheMightyThor Posted at 2018-7-18 12:38
Make sure you're not having the issue where the drone disconnects itself if you're on the wrong Apple firmware. That kicked me out of the update a few times before I realized what was happening.

Hi TheMightyThor,
What do you mean when you say "wrong Apple firmware?"
I am trying to upgrade on Windows DJI Assistant and on iPhone DJI Go 4. On both same error.

ptlapse Posted at 2018-7-18 12:43
Hi TheMightyThor,
What do you mean when you say "wrong Apple firmware?"
I am trying to upgrade on Windows DJI Assistant and on iPhone DJI Go 4. On both same error.

If you're on IOS 11.4, there's a good chance your app is going to crash. You need to update to IOS 12 Beta in order for it to work.

Hello there. We apologize for the inconvenience. You might want to check this tutorial:

DJI Wanda Posted at 2018-7-19 05:27
Hello there. We apologize for the inconvenience. You might want to check this tutorial: https://www.youtube.com/watch?v=M9Eofq9qnLQ

I have this Identical problem and it is not the way it is being updated  as I do several Inspire 2 and never have an issue

Did you ever get it fixed