Same here, Magisk 15.0 on S6 edge (G925F) boots into the throbbing samsung logo and no further.
Weirdly enough it did work on my S2 (T719n) without any problems...
How do i get a logcat off the device to help pin this down?
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...and what is one supposed to do in this case?
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I managed to get my device back to work by flashing the latest Samsung firmware with odin, then installed TWRP, and then flashed magisk 14.0, buht of course now magiskmanager keeps nagging about 15.0.
How do I turn dm-verity on? I tried to flash 15.0 from MagiskManager with "keep AVB/dm-verity" turned on, now I got a bootloop 0.o
Guys have you tried flashing dm-verity disabler by jcadduono after flashing Magisk?
[Insert General Disclaimer Here]
@Didgeridoohan That's so early in the boot process adb reports device as Offline so don't expect logcats from average Joe. Samsung Devices doesn't boot with custom recovery and dm-verity enabled, Magisk 15 no longer disables dm-verity by default so...
OMG i stucked on boot with 15.0 too. Whats the problem. What is the solution??
EDIT i have the solution right now tested it and working. download magisk unistaller and magisk 14.0. Enter the twrp first flash magisk uninstaller and after that flash magisk 14.0. Here we go
Simply updating from the manager and then flashing dm-verity (the December update) worked for me.Just flash no-verity-opt-encrypt posted before.
I also had trouble installing Magisk 15 on my international S EDGE. The first time I updated from 14 to 15 via Magisk Installer and I ended stuck in Samsung Logo; i was not able to flash anything from recovery because my phone was encrypted. Factory reset Then tried flashing magisk and dm-verity from recovery but ended in Samsung logo again.
Looks like the right way is flashing v15.0 from manager with "keep AVB/dm-verity" turned on, get a bootloop, then flashing dm-verity from recovery.
At least that's how I made it.