I recently did the htc dev unlock and flash to the MIUI 12.9 rom. The only problem I have with this rom, is the call volume is so quiet and I can barely hear the other person even though it's all the way up. Before when I did revolution s-off/root method, I just flashed to MIUI 12.9 rom and then flashed the "aeroevan_Inc2-aosp-0.7-bfs" kernel. Problem is, I returned to stock s-on, got the latest OTA and now I'm stuck doing htc dev unlock bootloader because tacoroot failed for me. Anyway, how do I flash this "aeroevan_Inc2-aosp-0.7-bfs" kernel. I read you have to do it via fastboot and push the boot.img, etc, but the problem is, the aeroevan_Inc2-aosp-0.7-bfs.zip I have saved from when I used it before doesn't have a boot.img file I can push onto the rom. How do I flash this kernel?