Like it has been said before... you are getting a black screen because auto rcm is in effect..
Auto rcm is automatically applied when you use choidujour... this is to prevent you booting into normal bootloader and burning fuses..
Each system version 2.0-4.1.0-5.1.0 have different fuses counts ,, 2-4-5-6 etc
If for instance you update to 5.1.0 with no fuse method,auto rcm weill prevent you loading the stock bootloader, and will require you run a alternative..
hekate / cfw etc... When you load with hekate or another fuse bypass loader. you dont burn fuses.
for instance if you update from 4.1.0 say with 4 fuses as a example with the no fuse guide to say 5.1.0. means you stay on 4 fuses burned..
Now If you remove auto rcm and say try to boot into your 5.1.0 you will burn a fuse,
so say for example you now have 5 fuses burned. thats fine if you wish to stay on 5.1.0....
the issue is when you want to downgrade or go back to the system version you was on example 4.1.0
Because you booted into 5.1.0 without bypassing fuse check with autorcm and Alternative bootloader not used you burn fuse/s if you now try to load any other system version that requires less fuses burnt example 4.1.0. the console i think kernel, will panic to that the fuse count does not match the system version and will freeze/crash/ simply not load...
So If you wish to update system version and be able to downgrade system version use auto rcm..
If you do not care about returning to earlier system versions then you do not have to use auto rcm...
As for these posts /comments
You sound it like burn fuse is burning house. Nobody cares about fuses anymore bro.
Well, most of us are pirates. Since we can play backup without problem, not sure why we care about fuse. Autorcm is dangerous anyway.
I think you stand alone here.. and i do not agree...
Granted autorcm is shall we say a little dangerous in regard to it bricks your boot file.. but can be restored with ease.. Id say your posts are dangerous and are upon a danger to yourself with what you have been posting.
Remember kiddies boys and girls / make a full backup before you play with your toys..
Backup here >>
https://gbatemp.net/threads/backup-...-your-biskeys-tseckeys-keys-txt-guide.513386/