Hello,
I have been using b4I for several years. My apps run fine on 2 iphone 6S and 2 ipad.
I just bought an iphone SE, I add this device on my appel developper account and I create a new provision profile using this new device.
On the Iphone SE, i load and i install B4i profile (http://b4x.com/ca.pem).
On my old iPhone i can instal b4i-bidge (after scan qr code), but on the new iPhone SE i have en error ("Unable to install B4i-Bridge. try later")
Which IOS release has your IPhone SE ? I had problems since 14.5.
Apple Configurator 2 allows to use debug and release modes similar B4Ii-Bridge. But does not support WiFii installation and requires current B4i release
PS. Just updated to 14.6 on my iPhone 6s Plus. B4i-Bridge can't install apps, unlike AC2.