changing the device name in Zephyr

Question

I copied a project folder and I want to change the device name. So I changed CONFIG_BT_DEVICE_NAME="blah_blah_blah" in the prj.conf file and did a pristine build. 
 But with a sniffer I can see that the device is still advertising under the old device name. So there is some sort of stale file that is not refreshed by a pristine build. Any ideas where it might be? 
 My SDK is version 2.4.1 
 My original template was the ble_peripheral. The advertising data section looks like this: 
 
// Set up BLE advertising data
static const struct bt_data advert_data[] = {
	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
	BT_DATA_BYTES(BT_DATA_UUID16_ALL),
	BT_DATA_BYTES(BT_DATA_UUID128_ALL, BT_UUID_CHARGEMATE_SERVICE_VAL),
};

Bret Foreman · Accepted Answer

I figured this out. I did a command line erase of the chip instead of just re-flashing from Visual Studio and the device got renamed. I guess the VS flash and erase commands can't erase the device name.

changing the device name in Zephyr

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