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Proper way to modify framework.jar and android.policy.jar

Hello - I am trying to add 'Reboot' option to Power Menu by modifying the following files - framework-res.apk, framework.jar, and android.policy.jar file. I was successfully able to add additional values to the xml file inside framework-res.apk and was able to merge my changes into the original .apk file and update in /system/framework without any issues. However, the smallest changes I make in framework.jar or android.policy.jar file breaks my system. It does not go into a Reboot Loop, but rather gives a message... Unfortunately, the <app name> has stopped working... or something like that... for almost all the apps and repeatedly.
I am on a Stock ROM of Micromax A110 (Mobistel T2). Do I need to DEODEX these .jar files first or do something else? I can't find the .odex files for these two jar files. I am not sure what I am doing wrong. Please help.

I can see some .odex files in my /system/app folder, but none in /system/framework. Is this normal? I am sure I didn't do any deodexing.

Need SystemUI.odex file

So I deleted SystemUI.odex file and I went to cwm flash my new zip which I wanted to replace the navbar, but I quickly realized that it was bad decision because now my systemui is completely gone. I am on 15.3.A.1.14 and I don't know if it's just SystemUI.odex or both SystemUI.odex and SystemUI.apk files (I replaced the .apk with a backup 1 I had from old fw)
I need these files and I will put them in my /system/app folder (I did nothing to the /system/framework folder luckly)

Stock Settings.apk

Can anybody dump Stock Settings.apk for me? I have accidentally remove the Settings.apk. .

Deodexed if you have it

Deleted systemui.odex

Pls help I deleted my systemui.odex and now my navigation bar and status bar are gone. I tried reinstalling it in system/app/ but nothing changed .what should I do

Use apktool on your phone. Make an odex of the SystemUI.apk in your system/priv-app filder. move that SystemUI.apk to your apktool foldee then open apktool app and select odex and odex the systemui.apk. Now move the SystemUI.odex back to wherever you last deleted it. Be sure to hit thanks button.
Sent from my D6503 using XDA-Developers mobile app

Apktool
Plz..........send me apktool apk link

[Help]Deodexing system/framework

I am using
Android lolipop 5.1
I am new to deodexing .and i have successfully have deodexer my system/app and system/priv-app
But when I tried to deodex my framework
I could only deodex some jar files because only some of them have odes in framework/arm
From my research I found out that test of odex are located in framework/arm/boot.oat
My question is then how will I extract these odex
And even if I extract and recompile these odex
The system will still contain boot.oat so it would neglect
The jars and still will use the odex files contained in boot.oat
So what I want
I want to deodex my framework
I want system to use classes.Dec from jar and not fromboot.oat
I want to modify android.policy.jar but the classes.dex of android.policy.jar is struct I. Boot.oat
Sory for long post
Thanks in advance! !