I'm also on 7.4.I was really busy the last weeks. I'm still on crDroid v7.4 from March, the 31st this year. I wanted to update today, but not sure how to, because I read a lot of different posts here with problems. Could anyone describe the best way? Is the OP still correct? Can I use the OTA updater? The last time I tried that, I had to delete the whole device and start from the beginning, because he encrypted my device, stuck in a boot loop and I couldn't install the image on the cellphone. So this time I don't want to make any mistakes. Please help me with updating from 7.4 to 7.6 step by step.
Aoparently, you have to flash Android 11 Firmware first and then crDroid next. Instructions in OP are correct. You will lose all data in the processs which is why I've been delaying the "upgrade" (it's basically full ROM install).