Opening this issue again. Using Huawei/Honor mobile phones is a pain in mapillary. Standard methods of disabling the shutter sound are not working. Rooting the phone is not the solution due to the warranty and other reasons (like my company phone cannot be rooted, because is not mine).
BUT: silent camera apps from the google market have absolutely no problem to take pictures without a sound. So i hope it shouldnt be a problem for mapillary too.
I can’t take pictures when phone is making noise every second for few hours driving. And it’s also distrubing passengers. And when mapping streets, everybody is looking because of shutter sound.