Ya, I know you mentioned the R before. I was just worried because not only my R is different (4 instead of 6), my C636 is also different than the C432 you used in your example. Now that you mentioned it is ok to proceed, I will give it a try.You can use for that step the 184.108.40.206 C432 firmware. Doesnt matter the R at that stage. After that you will use HiSuiteproxy to change it back to 10.1.0.134 or 122, C636 R4. (Use the apps attached on my message there).
I think I mentioned that on my thread. You have all there.
That was made several times. So, dont worry.
I will be using this now - https://androidhost.ru/Z6c