I need your help.
I've made greatest mistake of my life by updating ROM of my Samsung S10+ Exynos to this Android 10 ROM: sammobile.com/samsung/galaxy-s10-plus/firmware/SM-G975F/ILO/download/G975FXXU4BTA8/316086/
Now, I need to downgrade to 9.0, because all intent features are "secured" (or just broken) on 10.0 and don't work as they did at 9.0. And, because G975FXXU4BTA8 uses Bootloader 4, I can't downgrade to previous ROMs that use Bootloader 3 and lesser.
I will be happy with any instruction or solution that will allow me to bypass Bootloader protection, or that will allow me to patch previous ROMs to use Bootloader 4 instead of 3 to successfully downgrade, no matter how difficult and complex they are.
Actually, I don't care about downgrade, as long as I can use all intent features in Android 10.0 as I could in Android 9.0, but I don't see any solution so far.
Any advice is welcome,