Install Xposed Framework to LG Spirit without recovery

This is method of installing Xposed Framework which is made by @rovo89 to use some tweaks without needing to modify system files (like SystemUI).
Original post was made in General Thread by @polfrank but I need to edit it with some new things which he is missing.

Code:

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I'm in no way responsible for whatever happens to your device if things go wrong.
Your device is your responsibility, proceed with caution and only if you know what you're doing.

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Apps and stuff which is needed to install Xposed Framework

* Root
* BusyBox - IMPORTANT, script don't work properly without BusyBox installed
* Terminal Emulator
* Root Explorer or ES File Explorer
* Installer script - Updated to work with latest version of Xposed Framework zip files. It shows some minor problems which doesn't make installer not working. Translated from Spanish to English by @midzan21 aka myself.
* Xposed Framework zip file - IMPORTANT, download SDK21-ARM variant, not ARM64 or SDK22-ARM variant, because stock ROMs are compiled with 32-bit version, not 64-bit. Also SDK21 is for Lollipop 5.0.x and SDK22 is for Lollipop 5.1.x
* Xposed Installer apk - download latest version and install it
* Brain.apk - just in case, but still important

Installation process:

1.) Put Xposed Framework zip, Xposed Installer apk and Installer script (extracted) on Internal memory of device (Internal SD Card, not your real SD card if you have it)
2.) Install BusyBox
3.) Open Terminal Emulator and enter this commands
3.1.) Gain Root Permissions after entering su command

Code:

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su
sh /sdcard/installer

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4.) Enter once Y to continue installation
5.) After installation is done open your Root Explorer (buy it and support developer of app) or ES File Explorer (free)
5.1.) If you use ES File Explorer obtain it Root Permissions and make / (root folder) and /data writable
6.) Remove all files from /cache folder
7.) Remove all files from /data/dalvik-cache folder
6.1 & 7.1) If you don't wanna to use Root Explorer or ES File Explorer enter this commands in Terminal Emulator right after installer finishes

Code:

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rm -rf /cache
rm -rf /data/dalvik-cache

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8.) Reboot device
9.) Install Xposed Installer apk
10.) Open Xposed Installer and check in Framework section check does it writes: Xposed framework version XX is active (XX is latest version)
11.) Install module which you want and after enabling it reboot phone
12.) Enjoy :)

Problems, bugs and issues:

Currently none, added to script to remove LG QuickCover which make Force Close

Old bugs, problems and issues:

Weather FC (Fixed with never versions of Xposed Framework)
Tethering and networks in Settings FC (Fixed with never versions of Xposed Framework)
After every boot you have Android is upgrading screen (fixed with never versions of Xposed Framework)

To do list:

* Update script to automatically cleans /cache and /dalvik-cache folders

Credits:

@rovo89 for Xposed Framework and Installer
@polfrank for original post in General Thread
Unknown person for creating original installer script