I have been running IncrediblePBX on an older version of Raspberry PI. I have made an image and copied to new micro SD card, but cannot get it to boot on newer versions of Raspberry Pi.
I have followed the instructions from https://thepihut.com/blogs/raspberry-pi-tutorials/16982376-updating-raspian-on-your-microsd-for-the-raspberry-pi-2 to upgrade the OS, but still will not boot on newer Pi.
I have also tried the recommendations from Raspberry Pi 2 BCM2836 working but new Raspberry Pi 2 BCM2837 stuck on Rainbow Screen, but when I run apt-get install raspberrypi-bootloader I receive "Module not found".
I ran the cmd cat /proc/cpuinfo on the working Pi and discovered I have Hardware-BCM2708 Revision 000e.
I'd appreciate any suggestions on how to get the microSD card to boot on a newer Pi. So far I've tried to boot it on a Raspberry Pi 2 Model B and a Raspberry Pi 1 Model B+, neither will boot.