[OnePlus Nord N200 5G] EnumC:
Hi everyone! I lost my OP8 daily driver the other day and decided to pick up a N200 as a stopgap measure. Thanks to Android 11, I'm able to dump all partitions from the DE2118 model of this device.

AFH: https://www.androidfilehost.com/?fid=7161016148664787728

Here's the partition map:

phhgsi_arm64_ab:/dev/block/by-name # ls -la
total 0
drwxr-xr-x 2 root root 2080 1970-01-12 18:02 .
drwxr-xr-x 6 root root 3080 1970-01-12 18:02 ..
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 ALIGN_TO_128K_1 -> /dev/block/sdd1
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 ALIGN_TO_128K_2 -> /dev/block/sdf1
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 abl_a -> /dev/block/sde6
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 abl_b -> /dev/block/sde26
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 abl_log -> /dev/block/sde53
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 android_log -> /dev/block/sde55
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 apdp -> /dev/block/sde40
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 bluetooth_a -> /dev/block/sde5
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 bluetooth_b -> /dev/block/sde25
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 boot_a -> /dev/block/sde9
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 boot_b -> /dev/block/sde29
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 carrier -> /dev/block/sda8
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 catecontentfv -> /dev/block/sde50
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 catefv -> /dev/block/sde49
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 cateloader -> /dev/block/sde42
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 cdt -> /dev/block/sdd2
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 core_nhlos_a -> /dev/block/sde15
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 core_nhlos_b -> /dev/block/sde36
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 ddr -> /dev/block/sdd3
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 devcfg_a -> /dev/block/sde10
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 devcfg_b -> /dev/block/sde30
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 devinfo -> /dev/block/sde39
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 dinfo -> /dev/block/sdd7
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 dsp_a -> /dev/block/sde7
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 dsp_b -> /dev/block/sde27
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 dtbo_a -> /dev/block/sde13
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 dtbo_b -> /dev/block/sde33
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 engineering_cdt_a -> /dev/block/sdd4
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 engineering_cdt_b -> /dev/block/sdd5
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 featenabler_a -> /dev/block/sde17
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 featenabler_b -> /dev/block/sde18
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 frp -> /dev/block/sda5
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 fsc -> /dev/block/sdf14
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 fsg -> /dev/block/sdf13
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 hyp_a -> /dev/block/sde3
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 hyp_b -> /dev/block/sde23
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 imagefv_a -> /dev/block/sde14
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 imagefv_b -> /dev/block/sde34
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 kernel_log -> /dev/block/sde54
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 keymaster_a -> /dev/block/sde8
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 keymaster_b -> /dev/block/sde28
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 keystore -> /dev/block/sda4
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 logdump -> /dev/block/sde43
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 logfs -> /dev/block/sde41
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 logo_a -> /dev/block/sde20
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 logo_b -> /dev/block/sde38
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 metadata -> /dev/block/sda14
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 misc -> /dev/block/sda3
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 modem_a -> /dev/block/sde4
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 modem_b -> /dev/block/sde24
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 modemst1 -> /dev/block/sdf6
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 modemst2 -> /dev/block/sdf7
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 multiimgoem_a -> /dev/block/sde45
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 multiimgoem_b -> /dev/block/sde46
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 ocdt -> /dev/block/sdd6
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 oplusdycnvbk -> /dev/block/sdf2
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 opluslog -> /dev/block/sda7
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 oplusreserve1 -> /dev/block/sdf8
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 oplusreserve2 -> /dev/block/sdf9
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 oplusreserve3 -> /dev/block/sdf10
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 oplusreserve4 -> /dev/block/sdf11
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 oplusreserve5 -> /dev/block/sdf12
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 oplusstanvbk_a -> /dev/block/sdf3
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 oplusstanvbk_b -> /dev/block/sdf4
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 param -> /dev/block/sdf5
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 persist -> /dev/block/sda2
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 persist_bkp -> /dev/block/sda6
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 qupfw_a -> /dev/block/sde11
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 qupfw_b -> /dev/block/sde31
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 rawdump -> /dev/block/sda15
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 rpm_a -> /dev/block/sde1
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 rpm_b -> /dev/block/sde21
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sda -> /dev/block/sda
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sdb -> /dev/block/sdb
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sdc -> /dev/block/sdc
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sdd -> /dev/block/sdd
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sde -> /dev/block/sde
lrwxrwxrwx 1 root root 14 1970-01-12 18:02 sdf -> /dev/block/sdf
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 secdata -> /dev/block/sde48
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 ssd -> /dev/block/sda1
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 storsec -> /dev/block/sde44
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 super -> /dev/block/sda9
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 tz_a -> /dev/block/sde2
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 tz_b -> /dev/block/sde22
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 uefisecapp_a -> /dev/block/sde16
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 uefisecapp_b -> /dev/block/sde35
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 uefivarstore -> /dev/block/sde47
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 userdata -> /dev/block/sda16
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vbmeta_a -> /dev/block/sde12
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vbmeta_b -> /dev/block/sde32
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vbmeta_system_a -> /dev/block/sda10
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vbmeta_system_b -> /dev/block/sda11
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vendor_boot_a -> /dev/block/sde19
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vendor_boot_b -> /dev/block/sde37
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vm-data -> /dev/block/sde52
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vm-keystore -> /dev/block/sde51
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vm-system_a -> /dev/block/sda12
lrwxrwxrwx 1 root root 16 1970-01-12 18:02 vm-system_b -> /dev/block/sda13
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 xbl_a -> /dev/block/sdb1
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 xbl_b -> /dev/block/sdc1
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 xbl_config_a -> /dev/block/sdb2
lrwxrwxrwx 1 root root 15 1970-01-12 18:02 xbl_config_b -> /dev/block/sdc2

To gain root access in the absence of magisk and firmware, I used the DSU feature that was introduced back in Android 10 (https://developer.android.com/topic/dsu).

Note: This will cause your device to brick if you did NOT unlock your bootloader first!

Then, get the latest phhusson GSI build w/ root. I used https://github.com/phhusson/treble_...wnload/v312/system-roar-arm64-ab-floss.img.xz

You can then unsparse the system img, gzip it, then use that to launch DSU with a custom image.

A more in-depth tutorial and a simplified firmware dump script will be coming soon a bit later in the afternoon. Hope that helps anyone looking for the firmware in the meantime :)