Followed this video by STmicroelectronics (STM32WB15CC) for simple BLE server(custom). After following exactly same steps I can not Successful Fast Advertisment on Tera term of BLE while in video his BLE started advertising.

video title: BLE Security with STM32WB - 04 Simple BLE application generated from CubeMX

Can't add video link

Hello,

In order to use BLE Custom template for WB15, you have to tune some parameters to fit with the RAM size for the GATT database. So, you have to change the following parameters:

• CFG_BLE_ATT_VALUE_ARRAY_SIZE = 1290
• CFG_BLE_NUM_GATT_ATTRIBUTES = 30
• CFG_BLE_NUM_GATT_SERVICES = 4

Can you check the value of these parameters?

Best Regards