[PAC Q&A] ForceClosed:
I checked the MD5 sum and it returned the same hash, so the files seems to be fine.

I've also got the updater script you asked for:

assert(getprop("ro.product.device") == "ls980" || getprop("ro.build.product") == "ls980" ||

getprop("ro.product.device") == "g2" || getprop("ro.build.product") == "g2" ||

getprop("ro.product.device") == "galbi" || getprop("ro.build.product") == "galbi" || abort("This package is for \"ls980,g2,galbi\" devices; this is a \"" + getprop("ro.product.device") + "\"."););

mount("ext4", "EMMC", "/dev/block/platform/msm_sdcc.1/by-name/system", "/system");

package_extract_file("system/bin/backuptool.sh", "/tmp/backuptool.sh");

package_extract_file("system/bin/backuptool.functions", "/tmp/backuptool.functions");

set_perm(0, 0, 0777, "/tmp/backuptool.sh");

set_perm(0, 0, 0644, "/tmp/backuptool.functions");

run_program("/tmp/backuptool.sh", "backup");

unmount("/system");

show_progress(0.500000, 0);

ui_print("#############################################");

ui_print("# #");

ui_print("#______ ___ _____ ___ ___ ___ _ _ #");

ui_print("#| ___ \ / _ \ / __ \| \/ | / _ \ | \ | |#");

ui_print("#| |_/ // /_\ \| / \/| . . |/ /_\ \| \| |#");

ui_print("#| __/ | _ || | | |\/| || _ || . ` |#");

ui_print("#| | | | | || \__/\| | | || | | || |\ |#");

ui_print("#\_| \_| |_/ \____/\_| |_/\_| |_/\_| \_/#");

ui_print("# ______ _____ ___ ___ _____ #");

ui_print("# | ___ \| _ || \/ |/ ___| #");

ui_print("# | |_/ /| | | || . . |\ `--. #");

ui_print("# | / | | | || |\/| | `--. \ #");

ui_print("# | |\ \ \ \_/ /| | | |/\__/ / #");

ui_print("# \_| \_| \___/ \_| |_/\____/ #");

ui_print("# #");

ui_print("# #");

ui_print("#############################################");

ui_print("Device: ls980");

ui_print("#############################################");

ui_print("Formatting system");

format("ext4", "EMMC", "/dev/block/platform/msm_sdcc.1/by-name/system", "0", "/system");

mount("ext4", "EMMC", "/dev/block/platform/msm_sdcc.1/by-name/system", "/system");

ui_print("Extracting system files...");

package_extract_dir("system", "/system");

ui_print("Making symlinks");

symlink("../bin/fsck.f2fs", "/system/bin/dump.f2fs");

symlink("../xbin/su", "/system/bin/su");

symlink("/data/misc/audio/wcd9320_anc.bin", "/system/etc/firmware/wcd9320/wcd9320_anc.bin");

symlink("Roboto-Bold.ttf", "/system/fonts/DroidSans-Bold.ttf");

symlink("Roboto-Regular.ttf", "/system/fonts/DroidSans.ttf");

symlink("busybox", "/system/xbin/[", "/system/xbin/[[",

"/system/xbin/adjtimex", "/system/xbin/arp", "/system/xbin/ash",

"/system/xbin/awk", "/system/xbin/base64", "/system/xbin/basename",

"/system/xbin/bbconfig", "/system/xbin/blkid", "/system/xbin/blockdev",

"/system/xbin/brctl", "/system/xbin/bunzip2", "/system/xbin/bzcat",

"/system/xbin/bzip2", "/system/xbin/cal", "/system/xbin/cat",

"/system/xbin/catv", "/system/xbin/chattr", "/system/xbin/chgrp",

"/system/xbin/chmod", "/system/xbin/chown", "/system/xbin/chroot",

"/system/xbin/clear", "/system/xbin/cmp", "/system/xbin/comm",

"/system/xbin/cp", "/system/xbin/cpio", "/system/xbin/crond",

"/system/xbin/crontab", "/system/xbin/cut", "/system/xbin/date",

"/system/xbin/dc", "/system/xbin/dd", "/system/xbin/depmod",

"/system/xbin/devmem", "/system/xbin/df", "/system/xbin/diff",

"/system/xbin/dirname", "/system/xbin/dmesg", "/system/xbin/dnsd",

"/system/xbin/dos2unix", "/system/xbin/du", "/system/xbin/echo",

"/system/xbin/ed", "/system/xbin/egrep", "/system/xbin/env",

"/system/xbin/expand", "/system/xbin/expr", "/system/xbin/false",

"/system/xbin/fbsplash", "/system/xbin/fdisk", "/system/xbin/fgrep",

"/system/xbin/find", "/system/xbin/flash_lock",

"/system/xbin/flash_unlock", "/system/xbin/flashcp",

"/system/xbin/flock", "/system/xbin/fold", "/system/xbin/free",

"/system/xbin/freeramdisk", "/system/xbin/fstrim", "/system/xbin/fsync",

"/system/xbin/ftpget", "/system/xbin/ftpput", "/system/xbin/fuser",

"/system/xbin/getopt", "/system/xbin/grep", "/system/xbin/groups",

"/system/xbin/gunzip", "/system/xbin/gzip", "/system/xbin/halt",

"/system/xbin/head", "/system/xbin/hexdump", "/system/xbin/id",

"/system/xbin/ifconfig", "/system/xbin/inetd", "/system/xbin/insmod",

"/system/xbin/install", "/system/xbin/ionice", "/system/xbin/iostat",

"/system/xbin/ip", "/system/xbin/kill", "/system/xbin/killall",

"/system/xbin/killall5", "/system/xbin/less", "/system/xbin/ln",

"/system/xbin/losetup", "/system/xbin/ls", "/system/xbin/lsattr",

"/system/xbin/lsmod", "/system/xbin/lsusb", "/system/xbin/lzcat",

"/system/xbin/lzma", "/system/xbin/lzop", "/system/xbin/lzopcat",

"/system/xbin/man", "/system/xbin/md5sum", "/system/xbin/mesg",

"/system/xbin/mkdir", "/system/xbin/mke2fs", "/system/xbin/mkfifo",

"/system/xbin/mkfs.ext2", "/system/xbin/mkfs.vfat",

"/system/xbin/mknod", "/system/xbin/mkswap", "/system/xbin/mktemp",

"/system/xbin/modinfo", "/system/xbin/modprobe", "/system/xbin/more",

"/system/xbin/mount", "/system/xbin/mountpoint", "/system/xbin/mpstat",

"/system/xbin/mv", "/system/xbin/nanddump", "/system/xbin/nandwrite",

"/system/xbin/nbd-client", "/system/xbin/netstat", "/system/xbin/nice",

"/system/xbin/nohup", "/system/xbin/nslookup", "/system/xbin/ntpd",

"/system/xbin/od", "/system/xbin/patch", "/system/xbin/pgrep",

"/system/xbin/pidof", "/system/xbin/ping", "/system/xbin/pipe_progress",

"/system/xbin/pkill", "/system/xbin/pmap", "/system/xbin/poweroff",

"/system/xbin/printenv", "/system/xbin/printf", "/system/xbin/ps",

"/system/xbin/pstree", "/system/xbin/pwd", "/system/xbin/pwdx",

"/system/xbin/rdev", "/system/xbin/readlink", "/system/xbin/realpath",

"/system/xbin/renice", "/system/xbin/reset", "/system/xbin/resize",

"/system/xbin/rev", "/system/xbin/rm", "/system/xbin/rmdir",

"/system/xbin/rmmod", "/system/xbin/route", "/system/xbin/run-parts",

"/system/xbin/rx", "/system/xbin/sed", "/system/xbin/seq",

"/system/xbin/setconsole", "/system/xbin/setserial",

"/system/xbin/setsid", "/system/xbin/sh", "/system/xbin/sha1sum",

"/system/xbin/sha256sum", "/system/xbin/sha3sum",

"/system/xbin/sha512sum", "/system/xbin/sleep", "/system/xbin/sort",

"/system/xbin/split", "/system/xbin/stat", "/system/xbin/strings",

"/system/xbin/stty", "/system/xbin/sum", "/system/xbin/swapoff",

"/system/xbin/swapon", "/system/xbin/sync", "/system/xbin/sysctl",

"/system/xbin/tac", "/system/xbin/tail", "/system/xbin/tar",

"/system/xbin/taskset", "/system/xbin/tee", "/system/xbin/telnet",

"/system/xbin/telnetd", "/system/xbin/test", "/system/xbin/tftp",

"/system/xbin/tftpd", "/system/xbin/time", "/system/xbin/timeout",

"/system/xbin/top", "/system/xbin/touch", "/system/xbin/tr",

"/system/xbin/traceroute", "/system/xbin/true", "/system/xbin/ttysize",

"/system/xbin/tune2fs", "/system/xbin/umount", "/system/xbin/uname",

"/system/xbin/uncompress", "/system/xbin/unexpand", "/system/xbin/uniq",

"/system/xbin/unix2dos", "/system/xbin/unlzma", "/system/xbin/unlzop",

"/system/xbin/unxz", "/system/xbin/unzip", "/system/xbin/uptime",

"/system/xbin/usleep", "/system/xbin/uudecode", "/system/xbin/uuencode",

"/system/xbin/vi", "/system/xbin/watch", "/system/xbin/wc",

"/system/xbin/wget", "/system/xbin/which", "/system/xbin/whoami",

"/system/xbin/xargs", "/system/xbin/xz", "/system/xbin/xzcat",

"/system/xbin/yes",

"/system/xbin/zcat");

symlink("libGLESv2.so", "/system/lib/libGLESv3.so");

symlink("logcat", "/system/bin/lolcat");

symlink("mksh", "/system/bin/sh");

symlink("mount.exfat", "/system/bin/fsck.exfat",

"/system/bin/mkfs.exfat");

symlink("pigz", "/system/xbin/unpigz");

symlink("toolbox", "/system/bin/cat", "/system/bin/chcon",

"/system/bin/chmod", "/system/bin/chown", "/system/bin/clear",

"/system/bin/cmp", "/system/bin/cp", "/system/bin/date",

"/system/bin/dd", "/system/bin/df", "/system/bin/dmesg",

"/system/bin/du", "/system/bin/getenforce", "/system/bin/getevent",

"/system/bin/getprop", "/system/bin/getsebool", "/system/bin/grep",

"/system/bin/hd", "/system/bin/id", "/system/bin/ifconfig",

"/system/bin/iftop", "/system/bin/insmod", "/system/bin/ioctl",

"/system/bin/ionice", "/system/bin/kill", "/system/bin/ln",

"/system/bin/load_policy", "/system/bin/log", "/system/bin/ls",

"/system/bin/lsmod", "/system/bin/lsof", "/system/bin/md5",

"/system/bin/mkdir", "/system/bin/mkswap", "/system/bin/mount",

"/system/bin/mv", "/system/bin/nandread", "/system/bin/netstat",

"/system/bin/newfs_msdos", "/system/bin/notify", "/system/bin/printenv",

"/system/bin/ps", "/system/bin/r", "/system/bin/readlink",

"/system/bin/renice", "/system/bin/restart", "/system/bin/restorecon",

"/system/bin/rm", "/system/bin/rmdir", "/system/bin/rmmod",

"/system/bin/route", "/system/bin/runcon", "/system/bin/schedtop",

"/system/bin/sendevent", "/system/bin/setconsole",

"/system/bin/setenforce", "/system/bin/setfattr", "/system/bin/setprop",

"/system/bin/setsebool", "/system/bin/sleep", "/system/bin/smd",

"/system/bin/start", "/system/bin/stop", "/system/bin/swapoff",

"/system/bin/swapon", "/system/bin/sync", "/system/bin/top",

"/system/bin/touch", "/system/bin/umount", "/system/bin/uptime",

"/system/bin/vmstat", "/system/bin/watchprops",

"/system/bin/wipe");

set_metadata_recursive("/system", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/addon.d", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/bin", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/bin/app_process", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:zygote_exec:s0");

set_metadata("/system/bin/clatd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:clatd_exec:s0");

set_metadata("/system/bin/debuggerd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:debuggerd_exec:s0");

set_metadata("/system/bin/dhcpcd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:dhcp_exec:s0");

set_metadata("/system/bin/dnsmasq", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:dnsmasq_exec:s0");

set_metadata("/system/bin/drmserver", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:drmserver_exec:s0");

set_metadata("/system/bin/hostapd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:hostapd_exec:s0");

set_metadata("/system/bin/installd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:installd_exec:s0");

set_metadata("/system/bin/keystore", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:keystore_exec:s0");

set_metadata("/system/bin/mediaserver", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:mediaserver_exec:s0");

set_metadata("/system/bin/mksh", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:shell_exec:s0");

set_metadata("/system/bin/mtpd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:mtp_exec:s0");

set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/bin/netd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:netd_exec:s0");

set_metadata("/system/bin/ping", "uid", 0, "gid", 0, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:ping_exec:s0");

set_metadata("/system/bin/pppd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:ppp_exec:s0");

set_metadata("/system/bin/racoon", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:racoon_exec:s0");

set_metadata("/system/bin/rild", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:rild_exec:s0");

set_metadata("/system/bin/run-as", "uid", 0, "gid", 2000, "mode", 0750, "capabilities", 0xc0, "selabel", "u:object_r:runas_exec:s0");

set_metadata("/system/bin/sdcard", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:sdcardd_exec:s0");

set_metadata("/system/bin/servicemanager", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:servicemanager_exec:s0");

set_metadata("/system/bin/surfaceflinger", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:surfaceflinger_exec:s0");

set_metadata("/system/bin/vold", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:vold_exec:s0");

set_metadata("/system/bin/wpa_supplicant", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:wpa_exec:s0");

set_metadata_recursive("/system/etc/dhcpcd", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:dhcp_system_file:s0");

set_metadata("/system/etc/dhcpcd/dhcpcd-run-hooks", "uid", 1014, "gid", 2000, "mode", 0550, "capabilities", 0x0, "selabel", "u:object_r:dhcp_system_file:s0");

set_metadata_recursive("/system/etc/init.d", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/etc/init.d", "uid", 0, "gid", 0, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/etc/ppp", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0555, "capabilities", 0x0, "selabel", "u:object_r:ppp_system_file:s0");

set_metadata("/system/vendor", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/vendor/etc", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/etc/audio_effects.conf", "uid", 0, "gid", 0, "mode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/firmware", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/lib", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/vendor/lib/drm", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/lib/drm/libdrmwvmplugin.so", "uid", 0, "gid", 0, "mode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/lib/egl", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/vendor/lib/hw", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata_recursive("/system/xbin", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/xbin/librank", "uid", 0, "gid", 0, "mode", 06755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/xbin/procmem", "uid", 0, "gid", 0, "mode", 06755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/xbin/procrank", "uid", 0, "gid", 0, "mode", 06755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");

set_metadata("/system/xbin/su", "uid", 0, "gid", 0, "mode", 06755, "capabilities", 0x0, "selabel", "u:object_r:su_exec:s0");

show_progress(0.200000, 0);

show_progress(0.200000, 10);

package_extract_file("system/bin/backuptool.sh", "/tmp/backuptool.sh");

package_extract_file("system/bin/backuptool.functions", "/tmp/backuptool.functions");

set_perm(0, 0, 0777, "/tmp/backuptool.sh");

set_perm(0, 0, 0644, "/tmp/backuptool.functions");

run_program("/tmp/backuptool.sh", "restore");

delete("/system/bin/backuptool.sh");

delete("/system/bin/backuptool.functions");

show_progress(0.200000, 10);

ui_print("Thanks for choosing PAC-MAN ROMS");

ui_print("Enjoy PAC-man now");

package_extract_file("boot.img", "/tmp/boot.img");

assert(run_program("/system/bin/loki.sh") == 0);

delete("/system/bin/loki.sh");

unmount("/system");

Finally, regarding my TWRP version, I have been having difficulty here. I've searched around and have found people suggest goomanager for flashing the recovery, but it does not show me an update for TWRP. The TWRP manager app also does not have an updated version for my phone, so apparently I have the most current version possible. However, when searching the official TWRP website they have a link for version 2.7.0.0 for Sprint ls980. I downloaded the zip file, as well as an img, but due to my computer illiteracy I don't know what to do next.

Here is what the official TWRP website says to do: "Download the above file and place it in /sdcard on your device. Using adb shell or terminal emulator:

su

dd if=/sdcard/recoveryfilename.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery

Make certain that you get this command right. Typing the wrong number could result in a brick!"

Now I used adb commands to flash the original img on my phone and it worked fine, so I repeated the same steps except I used the new img file in the command line. This didn't work, and I didn't want to try the instructions above unless I knew exactly what I was doing. I'm sorry for being such a noob; I'm trying to learn as much as possible on my own, but the chance of harming my phone worries me.

Should I continue trying to update to the newest TWRP version, or is there anything else you can suggest?