Removed the call to Bluefruit.ScanResponse.addName() in startAdv(), as it was preventing BLE from reliably restarting advertising after a disconnect.
Hypothesis: adding the device name to the scan response exceeds internal buffer limits or causes a conflict with advertising timing, leading to the BLE stack silently failing to re-advertise.
Tested successfully (on T-1000) without this line, advertising now resumes correctly after disconnection (on Iphone)
