[Magisk] vladin79:
Hi. I have a problem installing Magisk. I have a tablet Oysters T74Mai 3G with MTK processor and android 5.1 with unlocked bootloader and without root. There is no any custom recovery for that model.

I installed Magisk Manager 5.8.3 and let it patch the stock boot image. After that I flashed the patched image with fastboot, but when the tablet is powered on, it is stuck on the boot animation. When I flash the stock boot image back with fastboot, the tablet boots normally. I tried to patch the boot image with Magisk 16.0 and 16.7, but the result is the same - stuck on the boot animation.

This is the log from Magisk Manager when patching the boot image:

- Copying image locally
- Target image: /data/data/com.topjohnwu.magisk/install/boot.img
- Device platform: armeabi-v7a
- Extracting files
- Unpacking boot image
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Parsing boot image: [/data/data/com.topjohnwu.magisk/install/boot.img]
KERNEL [7094175]
RAMDISK [668173]
SECOND [0]
EXTRA [0]
PAGESIZE [2048]
NAME [1465011659]
CMDLINE [bootopt=64S3,32S1,32S1]
CHECKSUM [91065cd3c70eaa74d173a4806f64db3b07f2b3c9]
DTB [23079]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
- Checking ramdisk status
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Loading cpio: [ramdisk.cpio]
- Stock boot image detected
- Backing up stock boot image
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Compressing to [stock_boot_21f9cec6deb5897d8707666e6b64e5c29055ed76.img.gz]
- Patching ramdisk
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Loading cpio: [ramdisk.cpio]
Add entry [init] (0750)
Patch with flag KEEPVERITY=[false] KEEPFORCEENCRYPT=[false]
Save SHA1: [21f9cec6deb5897d8707666e6b64e5c29055ed76] -> [.backup/.sha1]
Loading cpio: [ramdisk.cpio.orig]
Backup mismatch entry: [init] -> [.backup/init]
Dump cpio: [ramdisk.cpio]
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Loading dtbs from [dtb]
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
- Repacking boot image
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Parsing boot image: [/data/data/com.topjohnwu.magisk/install/boot.img]
KERNEL [7094175]
RAMDISK [668173]
SECOND [0]
EXTRA [0]
PAGESIZE [2048]
NAME [1465011659]
CMDLINE [bootopt=64S3,32S1,32S1]
CHECKSUM [91065cd3c70eaa74d173a4806f64db3b07f2b3c9]
DTB [23079]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
Repack to boot image: [new-boot.img]
KERNEL [7094175]
RAMDISK [928004]
SECOND [0]
EXTRA [0]
PAGESIZE [2048]
NAME [1465011659]
CMDLINE [bootopt=64S3,32S1,32S1]
CHECKSUM [10c3a516cc474a38eed500fe1208f27707cce10a]
MagiskBoot v16.7(1671) (by topjohnwu) - Boot Image Modification Tool
Cleaning up...

****************************
Patched image is placed in
/storage/sdcard0/MagiskManager/patched_boot.img
****************************
- All done!

This is the /cache/magisk.log

08-09 01:38:39.369 204 204 I Magisk : ** Initializing Magisk
08-09 01:38:39.370 204 204 I Magisk : * Creating /sbin overlay
08-09 01:38:39.685 204 204 I Magisk : * Mounting mirrors
08-09 01:38:39.687 204 204 I Magisk : mount: /sbin/.core/mirror/system
08-09 01:38:39.687 204 204 I Magisk : link: /sbin/.core/mirror/vendor
08-09 01:38:39.687 204 204 I Magisk : bind_mount: /sbin/.core/mirror/bin
08-09 01:38:39.687 204 204 I Magisk : * Setting up internal busybox
08-09 01:38:39.770 210 210 I Magisk : Magisk v16.7(1671) logger started
08-09 01:38:39.771 207 207 I Magisk : Magisk v16.7(1671) daemon started
08-09 01:38:39.779 207 212 I Magisk : ** post-fs-data mode running
08-09 01:38:39.780 207 212 I Magisk : * Mounting /data/adb/magisk.img
08-09 01:38:40.085 207 212 I Magisk : * Running post-fs-data.d scripts
08-09 01:38:40.086 207 212 I Magisk : * Running module post-fs-data scripts
08-09 01:38:40.086 207 212 I Magisk : * Loading modules
08-09 01:38:40.086 207 223 I Magisk : * Starting MagiskHide
08-09 01:38:40.086 207 223 I Magisk : hide_utils: Hiding sensitive props
08-09 01:38:40.087 207 223 I Magisk : hide_list: [com.google.android.gms.unstable]

Does someone know what can be the reason for this problem and how I can solve it?