Unable to find mesh network

So when trying to register my particle Boron through the mobile application, I get to the part where I am supposed to pair it with my phone and all my phone says is that it is unable to find your mesh device. I have tried running: echo -n -e \x01 > dummy.bin
dfu-util -d 2b04:d00d -a 1 -s 8134:leave -D dummy.bin
and once I enter: particle flash --serial xenon-bootloader@1.4.1-rc.1.bin
my terminal says unknown app found. And when I run particle list it tells me that no devices are found.