[LG V30 Questions & Answers] car2carl:
I have partition info for my V30 plus (H932BK)

you can use it for guidance just in case you need to erase and flash partition by partition and also

I had read somewhere on xda that you can dd the partition image from Linux PC and mount to your phone

and they fix their bricked/bootlooping phone (older LG phone)

and Idk if you can extract the stock LG V30 KDZ file into several partitions ?

joan:/ $ ls -al /dev/block/platform/soc/1da4000.ufshc/by-name
total 0
drwxr-xr-x 2 root root 1540 2017-03-01 21:09 .
drwxr-xr-x 4 root root 1720 2017-03-01 21:09 ..
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 abl -> /dev/block/sde27
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 ablbak -> /dev/block/sde28
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 apdp -> /dev/block/sde24
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 boot -> /dev/block/sde1
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 cache -> /dev/block/sda22
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 carrier -> /dev/block/sda10
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 cdt -> /dev/block/sdd2
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 cmnlib -> /dev/block/sde20
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 cmnlib64 -> /dev/block/sde22
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 cmnlib64bak -> /dev/block/sde23
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 cmnlibbak -> /dev/block/sde21
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 ddr -> /dev/block/sdd1
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 devcfg -> /dev/block/sde14
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 devcfgbak -> /dev/block/sde15
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 devinfo -> /dev/block/sdb5
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 dip -> /dev/block/sdb4
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 dpo -> /dev/block/sde26
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 drm -> /dev/block/sda4
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 eksst -> /dev/block/sda13
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 encrypt -> /dev/block/sda12
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 eri -> /dev/block/sda9
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 factory -> /dev/block/sda11
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 fota -> /dev/block/sdb2
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 frp -> /dev/block/sdg1
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 fsc -> /dev/block/sdf3
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 fsg -> /dev/block/sdb3
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 ftm -> /dev/block/sda7
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 grow -> /dev/block/sda24
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 grow2 -> /dev/block/sdb6
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 grow3 -> /dev/block/sdc2
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 grow4 -> /dev/block/sdd3
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 grow5 -> /dev/block/sde34
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 grow6 -> /dev/block/sdf4
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 grow7 -> /dev/block/sdg2
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 hyp -> /dev/block/sde10
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 hypbak -> /dev/block/sde11
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 keymaster -> /dev/block/sde18
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 keymasterbak -> /dev/block/sde19
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 keystore -> /dev/block/sda16
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 laf -> /dev/block/sda1
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 lafbak -> /dev/block/sda2
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 limits -> /dev/block/sde29
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 logfs -> /dev/block/sde31
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 misc -> /dev/block/sda6
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 modem -> /dev/block/sde16
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 modemst1 -> /dev/block/sdf1
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 modemst2 -> /dev/block/sdf2
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 mpt -> /dev/block/sda3
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 msadp -> /dev/block/sde25
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 operatorlogging -> /dev/block/sda8
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 persist -> /dev/block/sda17
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 pmic -> /dev/block/sde12
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 pmicbak -> /dev/block/sde13
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 pstore -> /dev/block/sda20
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 qni -> /dev/block/sda19
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 raw_resources -> /dev/block/sde6
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 raw_resourcesbak -> /dev/block/sde7
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 rct -> /dev/block/sda14
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 recovery -> /dev/block/sde2
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 recoverybak -> /dev/block/sde3
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 rpm -> /dev/block/sde8
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 rpmbak -> /dev/block/sde9
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 sec -> /dev/block/sde17
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 sns -> /dev/block/sda5
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 srtc -> /dev/block/sda18
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 ssd -> /dev/block/sda15
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 storsec -> /dev/block/sde32
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 storsecbak -> /dev/block/sde33
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 system -> /dev/block/sda21
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 toolsfv -> /dev/block/sde30
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 tz -> /dev/block/sde4
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 tzbak -> /dev/block/sde5
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 userdata -> /dev/block/sda23
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 xbl -> /dev/block/sdb1
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 xbl2 -> /dev/block/sdc1

and also by-num

joan:/ $ ls -al /dev/block/platform/soc/1da4000.ufshc/by-num
total 0
drwxr-xr-x 2 root root 720 2017-03-01 21:09 .
drwxr-xr-x 4 root root 1720 2017-03-01 21:09 ..
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p1 -> /dev/block/sda1
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p10 -> /dev/block/sda10
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p11 -> /dev/block/sda11
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p12 -> /dev/block/sda12
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p13 -> /dev/block/sda13
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p14 -> /dev/block/sda14
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p15 -> /dev/block/sda15
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p16 -> /dev/block/sda16
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p17 -> /dev/block/sda17
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p18 -> /dev/block/sda18
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p19 -> /dev/block/sda19
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p2 -> /dev/block/sda2
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p20 -> /dev/block/sda20
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p21 -> /dev/block/sda21
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p22 -> /dev/block/sda22
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p23 -> /dev/block/sda23
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p24 -> /dev/block/sda24
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p25 -> /dev/block/sde25
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p26 -> /dev/block/sde26
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p27 -> /dev/block/sde27
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p28 -> /dev/block/sde28
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p29 -> /dev/block/sde29
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p3 -> /dev/block/sda3
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p30 -> /dev/block/sde30
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p31 -> /dev/block/sde31
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p32 -> /dev/block/sde32
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p33 -> /dev/block/sde33
lrwxrwxrwx 1 root root 16 2017-03-01 21:09 p34 -> /dev/block/sde34
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p4 -> /dev/block/sda4
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p5 -> /dev/block/sda5
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p6 -> /dev/block/sda6
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p7 -> /dev/block/sda7
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p8 -> /dev/block/sda8
lrwxrwxrwx 1 root root 15 2017-03-01 21:09 p9 -> /dev/block/sda9