[Samsung Galaxy Note FE Guides, News, & Discussion] sevandzin:
Root ok on Oreo

Hello guys, just want to tell my story of rooting on Oreo.

I was on Oreo for last 3 months on N935F/DS device thinking finally to move to it from my old Note 7, and could not root it because RMM State was always Prenormal, even if I waited for 2 weeks. Even after several attempts to reboot and wait 7 days, nothing happened, RMM was still there and active. So I decided at least to try flashing TWRP, but failed with ODIN error and following text in download mode : Only official released binaries are allowed to be flashed(RECOVERY).

So I decided to rollback to Nougat, to the very first version N935FXXU1AQI5, but got error about binary version as expected : SW REV. CHECK FAIL(BOOTLOADER) DEVICE:2 BINARY:1

Ok, then I go flashing the same Nougat version, but without bootloader, in ODIN unchecked BL. The phone booted, and OEM Unlock and USB debugging were visible and I activated them. The phone was left for one week and after 169 hours I tried flashing TWRP again, but still no luck : Custom binary (RECOVERY) blocked due to remaining installement balance.

The phone was left for 6 days, still running the first release N935FXXU1AQI5 (but with bootloader ver.2 from Oreo) and I ran the OTA update to N935FXXU2BRD4, then after reboot once again via OTA next 229MB N935FXX2BRF1 update. At this time I rebooted to download mode and suddenly there was no RMM State line at all ! And I was finally able to flash TWRP, install Magisk etc...

But what is bothering me now, is that once you format data partiton in TWRP and reboot, you cannot read it anymore in TWRP because it is now encrypted. And I cannot make a full backup of it. I mean that after first phone setup you reboot and cannot mount anymore data partition in TWRP. On my previous Note7 device I am using "[ROM][NOUGAT] Note FE For Note 7 Fullport" from LinhPhi9x94 and I don't have this problem there and can mount data partition in TWRP after each reboot.

What I found on N935F/DS is that if I uninstall Magisk and install SuperSU, I was actually able to mount data partition in TWRP after two reboots of the phone, but when changed back to Magisk now it's impossible.

So now I want to ask you guys, how can I overcome this problem with data partition not visible in TWRP? Is this a problem related to Oreo that now it will always encrypt the data partition even if we installed Magisk? Or for example some custom kernel can solve this issue, etc... I also saw here on XDA forums some newer TWRP for OnePlus 5T which can mount encrypted data partition and asked password to enter.

[MENTION=666634]upd[/MENTION]: Sorry for misguiding, this problem seems to be known for S8/Note8. The data partition seems to be not encrypted, it's just that TWRP cannot mount it which requires flashing a special fix which is currently unavailable for N935F, am I right ? Or somebody has already succeded to mount data partition in TWRP ?

[MENTION=666634]upd[/MENTION]: Thanks to RicePlay33 I am finally able to read data partition in TWRP, who needs the solution, search this thread page 10 for N935F_data_partition_fix_MAGISK.zip.

I had once a bootloop with a Samsung logo, rebooted via download mode and it never appeared again for this moment.