[General Questions and Answers] DragonFire1024:
Still trying to root this phonw. More weird stuff regarding this LG K51. (Android 9, boost mobile LGE LM-K500). Let me start by posting the mounts.

/dev/root / ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,size=1451528k,nr_inodes=135078,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600,ptmxmode=000 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
tmpfs /mnt tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,size=1451528k,nr_inodes=135078,mode=755,gid=1000 0 0
/dev/block/dm-1 /product ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /vendor ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
none /acct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
debugfs /sys/kernel/debug debugfs rw,seclabel,relatime 0 0
none /dev/stune cgroup rw,nosuid,nodev,noexec,relatime,schedtune 0 0
none /config configfs rw,nosuid,nodev,noexec,relatime 0 0
none /dev/cpuctl cgroup rw,nosuid,nodev,noexec,relatime,cpu 0 0
none /dev/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent 0 0
cg2_bpf /dev/cg2_bpf cgroup2 rw,nosuid,nodev,noexec,relatime 0 0
bpf /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relatime 0 0
pstore /sys/fs/pstore pstore rw,seclabel,nosuid,nodev,noexec,relatime 0 0
/dev/pstore /dev/pstore pstore rw,seclabel,relatime 0 0
tracefs /sys/kernel/debug/tracing tracefs rw,seclabel,relatime 0 0
/dev/block/platform/bootdevice/by-name/protect1 /mnt/vendor/protect_f ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/protect2 /mnt/vendor/protect_s ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/nvdata /mnt/vendor/nvdata ext4 rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/nvcfg /mnt/vendor/nvcfg ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/persist /mnt/vendor/persist ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/persist_lg /mnt/vendor/persist-lg ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/power /mnt/vendor/power ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/p_persist_lg /mnt/product/persist-lg ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/mpt /mnt/product/mpt ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/carrier /mnt/product/carrier ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/els /mnt/product/els ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/bootdevice/by-name/srtc /mnt/product/srtc ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/dm-3 /product/OP ext4 ro,context=u:object_r:system_file:s0,nosuid,nodev,noatime,noauto_da_alloc,data=ordered 0 0
tmpfs /storage tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,size=1451528k,nr_inodes=135078,mode=755,gid=1000 0 0
adb /dev/usb-ffs/adb functionfs rw,relatime 0 0
/dev/block/dm-4 /data ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resgid=1065,errors=panic,data=ordered 0 0
/data/media /mnt/runtime/default/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /storage/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /mnt/runtime/read/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,derive_gid,default_normal 0 0
/data/media /mnt/runtime/write/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal 0 0
/dev/block/vold/public:179,129 /mnt/media_rw/0D44-1D11 vfat rw,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/public:179,129 /mnt/secure/asec vfat rw,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/mnt/media_rw/0D44-1D11 /mnt/runtime/default/0D44-1D11 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,mask=6 0 0
/mnt/media_rw/0D44-1D11 /storage/0D44-1D11 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,mask=6 0 0
/mnt/media_rw/0D44-1D11 /mnt/runtime/read/0D44-1D11 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,mask=18 0 0
/mnt/media_rw/0D44-1D11 /mnt/runtime/write/0D44-1D11 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,mask=18 0 0

No /system and no /. So I have no idea if it's system as root or wtf they are doing. According to the above there is no system. However using root explorer shows a standard OS layout.../system, /vendor, /etc. Here is what mtk-droid-tools tells me. if I do adb shell, and then run 'ls', again a pretty standard layout comes up. /system /dev /vendor etc.

Uboot build v: ----should be root shell
LCD Driver IC: ----should be root shell

----ERROR : --- TotalBytesPerChunk Not Found. Set default Page/Spare=2048/64 !!!
ATTENTION! Requests for confirmation on the device screen are possible!
----ERROR : SU inaccessible
----Through CWM it is possible to get root on this phone!

Another root tool I use on mediatek devices, spits out the below error. (Awaiting reply in that thread too)

And mtk-su says:

Failed critical init step 4
This firmware cannot be supported

to add, there is no fastboot. Rebooting to bootloader just reboots device. There is a standard recovery though. I only just dig out the .dll from the only firmware I think will work to get LG-UP to work but I haven't been brave enough to try it. This thing is a chop job. Any advice or ideas to try and root?