STM32 WB55RGV6 OTA Firmware Update Does Not Work

[Aurentiaco]

Hello,

I am trying to make a project for firmware update using OTA with ST BLE Sensor Classic on IOS device but I have a problem I watched the videos and try to understand how can I create a project for fimware update. I started with an easy one I run BLE_OTA on WB55RGV6 than I write a simple blinking led application, I change the flash address at  .ld file you can see it in attachements. Than export the .bin file and try to update but it does not working. I try to update the examples that ST produced they are working perfectly but they don't have ioc files in it so I don't know what should I specificly do in IOC file. Can anyone help me with my project? I am trying to understand how can I make an OTA firmware update. I checked the P2Pserver_OTA but I couldn't understand how does it work clearly. You can see the board that I am using in attachements.