Hi fellas, I decided to create a separate thread so I don't have to keep hogging up the main TCL Flip 2 thread.
Looking in the log of mixplorer I saw this
‌120 I/ROOT> cat "/data/user/0/com.mixplorer/cache/2274296027715" > "/system/usr/keylayout/matrix-keypad.kl" ‌121 E/ROOT> STD-ERR >> cat: write error: No space left on device

So, I did a little research and got this output.
platform-tools> adb shell df -h Filesystem Size Used Avail Use% Mounted on tmpfs 447M 1.9M 445M 1% /dev tmpfs 447M 0 447M 0% /mnt /dev/block/dm-2 1.2G 1.1G 0 100% / /dev/block/dm-1 194M 194M 0 100% /vendor /dev/block/dm-0 76M 76M 0 100% /product tmpfs 447M 2.8M 444M 1% /dev/ISNF tmpfs 447M 0 447M 0% /apex /dev/block/mmcblk0p42 104M 68K 101M 1% /cache /dev/block/mmcblk0p9 15M 224K 14M 2% /otapkg /dev/block/dm-3 4.5G 505M 4.0G 11% /data tmpfs 447M 0 447M 0% /system/bin /dev/fuse 4.5G 505M 4.0G 11% /storage/emulated

platform-tools>adb shell df -i Filesystem Inodes IUsed IFree IUse% Mounted on tmpfs 114495 988 113507 1% /dev tmpfs 114495 47 114448 1% /mnt /dev/block/dm-2 3680 3530 150 96% / /dev/block/dm-1 1376 1361 15 99% /vendor /dev/block/dm-0 160 147 13 92% /product tmpfs 114495 396 114099 1% /dev/ISNF tmpfs 114495 20 114475 1% /apex /dev/block/mmcblk0p42 28672 17 28655 1% /cache /dev/block/mmcblk0p9 5120 45 5075 1% /otapkg /dev/block/dm-3 1121280 50144 1071136 5% /data tmpfs 114495 394 114101 1% /system/bin /dev/fuse 1121280 50144 1071136 5% /storage/emulated

Since I don't really know what I'm doing, I figured that I'll post it here and maybe someone who does understand these things can let me know if I'm the right track, and how to proceed.

Any other pointers would also be greatly appreciated.

Many thanks...