[Android Q&A, Help & Troubleshooting] froggestspirit:
I was able to dump some of the partitions (going by name, I got the mmcblk0boot0 and mmcblk0boot1 for boot, each 4.2 MB and I grabbed mmcblk0p14 and mmcblk0p15 for the recovery, each 22MB). for TWRP, I seen that the LG K10 (2017 variant) appears to share the same processor of Mediatek MT6750. Would the TWRP recovery work for this? Also, my attempts to get into fastboot have not been successful so far. Running ADB reboot bootloader does a plain reboot (I enabled OEM unlock in the developer settings). I've also tried volume down while the phone is off, then plugging it in. I read somewhere that you can corrupt a certain partition on LG phones to enable fastboot, but I don't want to back myself into a position where I brick one of these if it isn't safe. I'll probably be saving the brick-worthy stuff for after recovery is available.

EDIT: boot actually appears to be mmcblk0p13 (21 MB) it was hidden from the command below since it is listed as ".boot"

mcv1s:/ # ls -l /dev/block/*/by-name
total 0
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 cache -> /dev/block/mmcblk0p48
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 carrier -> /dev/block/mmcblk0p42
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 efuse -> /dev/block/mmcblk0p32
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 eksst -> /dev/block/mmcblk0p25
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 encrypt -> /dev/block/mmcblk0p26
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 expdb -> /dev/block/mmcblk0p18
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 factory -> /dev/block/mmcblk0p31
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 flashinfo -> /dev/block/mmcblk0p50
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 frp -> /dev/block/mmcblk0p43
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 ftm -> /dev/block/mmcblk0p3
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 keystore -> /dev/block/mmcblk0p22
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 laf -> /dev/block/mmcblk0p10
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 lafbak -> /dev/block/mmcblk0p11
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 lgfota -> /dev/block/mmcblk0p29
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 lk -> /dev/block/mmcblk0p8
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 lk2 -> /dev/block/mmcblk0p9
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 lo_bak_go -> /dev/block/mmcblk0p17
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 logo -> /dev/block/mmcblk0p16
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 md1arm7 -> /dev/block/mmcblk0p39
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 md1dsp -> /dev/block/mmcblk0p38
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 md1img -> /dev/block/mmcblk0p37
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 md3img -> /dev/block/mmcblk0p40
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 metadata -> /dev/block/mmcblk0p36
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 misc2 -> /dev/block/mmcblk0p2
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 mpt -> /dev/block/mmcblk0p28
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 nvcfg -> /dev/block/mmcblk0p34
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 nvdata -> /dev/block/mmcblk0p35
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 nvram -> /dev/block/mmcblk0p4
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 odmdtbo -> /dev/block/mmcblk0p45
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 oemkeystore -> /dev/block/mmcblk0p20
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 para -> /dev/block/mmcblk0p12
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 persist -> /dev/block/mmcblk0p33
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 persist_lg -> /dev/block/mmcblk0p27
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 power -> /dev/block/mmcblk0p41
lrwxrwxrwx 1 root root 23 2019-12-10 18:34 preloader_a -> /dev/block/mmcblk0boot0
lrwxrwxrwx 1 root root 23 2019-12-10 18:34 preloader_b -> /dev/block/mmcblk0boot1
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 proinfo -> /dev/block/mmcblk0p1
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 protect1 -> /dev/block/mmcblk0p6
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 protect2 -> /dev/block/mmcblk0p7
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 rct -> /dev/block/mmcblk0p30
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 recovery -> /dev/block/mmcblk0p14
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 recoverybak -> /dev/block/mmcblk0p15
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 seccfg -> /dev/block/mmcblk0p19
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 secro -> /dev/block/mmcblk0p21
lrwxrwxrwx 1 root root 20 2019-12-10 18:34 spare1 -> /dev/block/mmcblk0p5
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 spare2 -> /dev/block/mmcblk0p44
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 system -> /dev/block/mmcblk0p47
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 tee1 -> /dev/block/mmcblk0p23
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 tee2 -> /dev/block/mmcblk0p24
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 userdata -> /dev/block/mmcblk0p49
lrwxrwxrwx 1 root root 21 2019-12-10 18:34 vendor -> /dev/block/mmcblk0p46