https://devzone.nordicsemi.com/f/nordic-q-a/36319/can-i-have-both-usb-bootloader-and-ble-bootloader-in-nrf52840Hi, In the past, we use ble bootloader in nrf52832 and it works well. Recently, we will use nrf52840 instead. However, we just found usb bootloader and ble bootloader can both work in one device. May I ask, is there any way to let customer to upgradeen-USTelligent Community 13Thu, 12 Jul 2018 14:58:36 GMThttps://devzone.nordicsemi.com/thread/139931?ContentTypeID=1Thu, 12 Jul 2018 14:58:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c6426998-6065-4a2f-9eff-f96496b8c027nine-fox<p>Really? Wow...if it can be like that, it would be cool.</p> <p>Anyway, I will follow your tips and have a try. Thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/139907?ContentTypeID=1Thu, 12 Jul 2018 13:33:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0335e6ae-de46-4dcf-b5a1-e66e133f6c08Hung Bui<p>Hi Vincent,&nbsp;</p> <p>&nbsp;</p> <p>I don&#39;t think it&#39;s a problem. As far as i know our bootloader should be able to support both 2 transportation concurrently. Have you tried to&nbsp;add them into one project ? Just need to add the transportation layer only.&nbsp;</p><div style="clear:both;"></div>