Can't do OTA updates again after modifying a non-OTA project into an OTA project?

[ShenChuanAn]

 After performing an OTA update, the Bluetooth icon appears as shown in Figure 1, but it does not display the "STM_OTA" name.The correct result should look like Figure 2.

I followed the modification steps from this video, including adding the OTA Reboot Characteristic as shown:
https://www.youtube.com/watch?v=mRzZOa3jmuM&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=9https://www.youtube.com/watch?v=mRzZOa3jmuM&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=9

The chip I’m using is STM32WB55CGU6, with FUS version v2.0, and ST BLE Toolbox version 1.4.4.
The project has been uploaded in the attachment.

[ShenChuanAn]

The project has been uploaded in the attachment.

[Andrew Neil]

Is this the same question:

https://community.st.com/t5/stm32-mcus-wireless/why-does-the-update-fail-after-i-modified-a-non-ota-project-into/td-p/809845 

[ShenChuanAn]

This is not the same issue. This is a new problem. Currently, OTA updates can be successful, but it can only be updated once and cannot be updated again.

[Andrew Neil]

So is the previous one now resolved?

If so, please mark the solution in that thread.

[ShenChuanAn]

The previous issue has been resolved, but how should this new problem be addressed?

[ShenChuanAn · Accepted solution]

https://www.youtube.com/watch?v=mRzZOa3jmuM&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=9

[FilipKremen]

Hello,

please read this document carefully.

Over-the-air application and wireless firmware update for STM32WB series microcontrollers - Application note

Also, I recommend having a look at BLE_HeartRate_ota example which can be helpful as a reference project.

Best regards,

Filip Kremen