[General Questions and Answers] RyanFox:
At this moment device have very laggy firmware LMY47V modified by vendor and many lags with telephony system and voice.

This device's filesystem:

Filesystem Size Used Free Blksize
/dev 444.4M 228.0K 444.2M 4096
/sys/fs/cgroup 444.4M 12.0K 444.4M 4096
/mnt/asec 444.4M 0.0K 444.4M 4096
/mnt/obb 444.4M 0.0K 444.4M 4096
/system 1.8G 1.4G 353.2M 4096
/data 4.8G 3.6G 1.2G 4096
/cache 248.0M 376.0K 247.6M 4096
/persist 27.5M 200.0K 27.3M 4096
/firmware 64.0M 47.8M 16.1M 16384
/mnt/shell/emulated 4.8G 3.6G 1.2G 4096
/mnt/shell/emulated/0 4.8G 3.6G 1.2G 4096
/mnt/media_rw/sdcard1 29.5G 6.7G 22.8G 32768
/mnt/secure/asec 29.5G 6.7G 22.8G 32768
/storage/sdcard1 29.5G 6.7G 22.8G 32768

Speks:

CPU Qualcomm msm8909

900 Mb RAM (1Gb)

5.5" display 320dpi 1280x720px

8 mp camera main and 2 mp secondary

sensors:

bma2x2-accel

tmd27723 proximity and light

Goodie GT915L (found in drivers)

partitions:

major minor #blocks name

253 0 524288 zram0
179 0 7634944 mmcblk0
179 1 65536 mmcblk0p1
179 2 512 mmcblk0p2
179 3 512 mmcblk0p3
179 4 1024 mmcblk0p4
179 5 1024 mmcblk0p5
179 6 512 mmcblk0p6
179 7 512 mmcblk0p7
179 8 768 mmcblk0p8
179 9 768 mmcblk0p9
179 10 1024 mmcblk0p10
179 11 1536 mmcblk0p11
179 12 1536 mmcblk0p12
179 13 1024 mmcblk0p13
179 14 1 mmcblk0p14
179 15 8 mmcblk0p15
179 16 10240 mmcblk0p16
179 17 32 mmcblk0p17
179 18 1536 mmcblk0p18
179 19 16 mmcblk0p19
179 20 32768 mmcblk0p20
179 21 1900544 mmcblk0p21
179 22 32768 mmcblk0p22
179 23 262144 mmcblk0p23
179 24 32768 mmcblk0p24
179 25 1024 mmcblk0p25
179 26 512 mmcblk0p26
179 27 65536 mmcblk0p27
179 28 512 mmcblk0p28
179 29 2048 mmcblk0p29
179 30 1024 mmcblk0p30
179 31 5215141 mmcblk0p31
179 32 512 mmcblk0rpmb
179 64 30948352 mmcblk1
179 65 30944256 mmcblk1p1

/dev/block/platform/7824900.sdhci/by-name/ <
lrwxrwxrwx root root 1970-05-17 21:06 DDR -> /dev/block/mmcblk0p17
lrwxrwxrwx root root 1970-05-17 21:06 aboot -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 1970-05-17 21:06 abootbak -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 1970-05-17 21:06 boot -> /dev/block/mmcblk0p20
lrwxrwxrwx root root 1970-05-17 21:06 cache -> /dev/block/mmcblk0p23
lrwxrwxrwx root root 1970-05-17 21:06 config -> /dev/block/mmcblk0p28
lrwxrwxrwx root root 1970-05-17 21:06 devinfo -> /dev/block/mmcblk0p25
lrwxrwxrwx root root 1970-05-17 21:06 frp -> /dev/block/mmcblk0p30
lrwxrwxrwx root root 1970-05-17 21:06 fsc -> /dev/block/mmcblk0p14
lrwxrwxrwx root root 1970-05-17 21:06 fsg -> /dev/block/mmcblk0p18
lrwxrwxrwx root root 1970-05-17 21:06 keystore -> /dev/block/mmcblk0p26
lrwxrwxrwx root root 1970-05-17 21:06 misc -> /dev/block/mmcblk0p13
lrwxrwxrwx root root 1970-05-17 21:06 modem -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 1970-05-17 21:06 modemst1 -> /dev/block/mmcblk0p11
lrwxrwxrwx root root 1970-05-17 21:06 modemst2 -> /dev/block/mmcblk0p12
lrwxrwxrwx root root 1970-05-17 21:06 oem -> /dev/block/mmcblk0p27
lrwxrwxrwx root root 1970-05-17 21:06 pad -> /dev/block/mmcblk0p10
lrwxrwxrwx root root 1970-05-17 21:06 pam -> /dev/block/mmcblk0p29
lrwxrwxrwx root root 1970-05-17 21:06 persist -> /dev/block/mmcblk0p22
lrwxrwxrwx root root 1970-05-17 21:06 recovery -> /dev/block/mmcblk0p24
lrwxrwxrwx root root 1970-05-17 21:06 rpm -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 1970-05-17 21:06 rpmbak -> /dev/block/mmcblk0p7
lrwxrwxrwx root root 1970-05-17 21:06 sbl1 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 1970-05-17 21:06 sbl1bak -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 1970-05-17 21:06 sec -> /dev/block/mmcblk0p19
lrwxrwxrwx root root 1970-05-17 21:06 splash -> /dev/block/mmcblk0p16
lrwxrwxrwx root root 1970-05-17 21:06 ssd -> /dev/block/mmcblk0p15
lrwxrwxrwx root root 1970-05-17 21:06 system -> /dev/block/mmcblk0p21
lrwxrwxrwx root root 1970-05-17 21:06 tz -> /dev/block/mmcblk0p8
lrwxrwxrwx root root 1970-05-17 21:06 tzbak -> /dev/block/mmcblk0p9
lrwxrwxrwx root root 1970-05-17 21:06 userdata -> /dev/block/mmcblk0p31

If need more information or proprietary files from device, just let me know. I tried to compile new android from AOSP but stuck on error when system can't find device config O_o and my PC were slow for it (1 core and 2Gb of ram)

https://yadi.sk/d/WjDtg25FqZe5T (this is archive with boot.img , aboot.img, abootbak.img, system/lib , system/etc, system/vendor, build.prop and some files with info from cat /proc