LAUNCHXL-CC26X2R1: CC2642R1 BLE OAD : simplelink starter app ios, how to upload custom image?

Part Number: LAUNCHXL-CC26X2R1
Other Parts Discussed in Thread: UNIFLASH

To make sure my persistent and BIM image works fine.  First I have tested the OAD with the launch board and the BTool and works fine

Then I downloaded the ios app for my iphone 10.

I go to EOAD Start/Reset, then an window pops up ask "Do you want to restart the device into persistent app image to perform an OAD?"

I chose YES, and I saw my device Red LED blinks and the app returns to the previous page and nothing happen...

How do I send my image?