APK Studio: Trick Root-Required apps to run on any device - General Questions and Answers

Is there a way to modify a decompiled apk to force it to work on a non-rooted phone?

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[Q] Can you edit/replace the classes.dex on the phone?

I am trying to edit an application however whenever i use apktool (apk manager) or smali/baksmali (jarsigner etc), sign then reinstall the app crashes..
So i am wondering if i can install the untouched package and then edit/replace the classes.dex while it is already installed?
Is that possible? Where exactly do installed apps reside? or do they remain in apk format until run on the phone?
I did search though i couldnt find an answer
Thanking you in advance.

[Q] Any way of disabling system app certificate checking on a rooted phone?

Does anyone know if there's a way of disabling certificate checking, perhaps just for a single app? My phone's rooted, so at least theoretically it *should* be possible, but it could be difficult, and maybe nobody knows how to do it...
Or maybe there's some other way of achieving what I want to do, which is a mod to Phone.apk. I'm using apktool to decompile and recompile, then resigning with my own signature, but the system objects to that (is this because Phone.apk is set up to use a shared user id?), and fails to launch the Phone application on restart ("No SIM inserted", it tells me... I've seen more accurate error messages).
Don't resign it. Copy signatures and AndroidManifest.xml file from original apk and Android won't notice other files were modified. If you replace system app, Android checks AndroidManifest.xml signature only.

[Q] Help compilling and decompiling error

Hello everybody i tried multi apktool to decompile apks but when i recompile those apps and try to install app on my phone its shows app not installed. Even when i don'T EDIT any file in the app. Please give me simple and best way to edit apk files.
Thanks.!!!

apk and launchers

I am starting this topic to find out some basics information's about apk files and how modify launchers apks before install them.
I use ClassyKitchen to export apk from some roms which have different deisign.
When I try install that apks to my rom (PX6 RK3399 with Android 10) I get an error that cant be installed.
Etc I am trying to install the apks from this rom but I cant.
Has anybody knows what I have to do to the apks files to make it work?
Also can I use a program to remove from the layout of a launcher some widget before I install it?
Thank you so much.

APK doesn't install even I did no modification to it

Hi masters,
I wanted to modify an android game named Injsutice gods among us. I used ApkEasyTool to decompile the APK and I didn't modify anything. After decompilation I recompiled the APK without doing any changes to its source. After successfully recompilation I installed the APK in android. The error I get while installing the app is "App is not installed". Can you tell me how to recompile the android app in a proper way and what are the steps to make it run successfully? The application is built for arm64-v8a architecture.
Thank you sir.
Use the original APK file.
jwoegerbauer said:
Use the original APK file.
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Click to collapse
Please read the post again. I am trying to modify the application. I would install modified application. But I got an issue while installing the application which is recompiled from apkeasytool.
I was referring to the title of the thread ...

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