How to patch the 3.3 on Android?

[forest lion]

Hi,
I tried every thing I can do, but I still have some problems:

1. How to patch the apk file ( I just found that the UA Patch on Windows)
2. How to sign the new repackaged apk file ( The unsigned apk can’t pass the signature validation when installing )

[glass gulch]

Unpack apk using apktool, patch libil2cpp.so (inside lib/arm64-v8a/), reassemble using apktool too

Use Apk-mitm to sign patched apk

libil2cpp.so = UserAssembly.dll

[glass gulch]

And use mitm on phone as proxy

[forest lion]

Thank you very much for your help.
Did you mean that directly replace libil2cpp.so in apk with UserAssembly, or need to find patched libil2cpp.so resource? I'm so sorry about my poor Unity knowledge.

[glass gulch]

no, patch libil2cpp.so and replace original libil2cpp.so, UserAssembly.dll isn't for android

[forest lion]

Sorry I have too many questions, how do I patch the libil2cpp.so file?

[forest lion]

Thanks.
I can search for a tutorial on how to patch, but the key is what to patch. As I understand it, the content of libil2cpp.so needs to be modified, but what to patch or what needs to be modified?

[leaden snow]

there is no need to patch il2cpp by hooking.

sImply replace dispatch key in binary would do the job.

there are already patched apk in resource channel.

3.3 android patched apk
https://1drv.ms/u/s!AsiyZTG2uD7hghWaTfSW0PTQD6MQ?e=WE9MqJ

if you want to know how to patch it,it requires reverse engineering.

[true thistle]

But still, you need Mitmproxy or other proxy to connect Private Server.

[leaden snow]

use lspatched apk.

yukki ps provides patched apk,it has a xposed module,if you modify the module,replace yukki server url,it will work,that is how I were doing.

[true thistle]

The fact, im the team YuukiPS. And also contribution with add feature in Github (Launcher-Android)

So, i know what you talking about

Oh yeah, if that guy who make post stuck at patch. Just use mod Genshin that already patched libil2cpp.so
https://file2.yuuki.me/d/Public/Local_EU/Project/GenshinImpact/Data/Android/3.3.0/Global/YuukiPS_V2.apk

[leaden snow]

I noticed that your team removed the dialog.

[leaden snow]

I tried my old module,it has a dialog,but it failed,I am not sure,but if I were not wrong,it detects dialog now?it's sick.

[leaden snow]

in android,there is something called virtual hosts,
it creates a vpn channel,and implements a hosts system,we will be able to redirect ip address of some domain,but can do.nothing on the port.
and yeah,still,client will still have ssl verifycation issue.

also,you can use mitmproxy but you will.still need to install certificate inside system,it requires root access.
I think.the best way is to use lsp patched apk.

[true thistle]

You can use mitmproxy in No Root phone, just install .pem/.cer in your Android phone without access to system/root folder

[leaden snow]

above android 7,app will not trust user installed certificate.

you will have to install them into system.

[true thistle]

You sure? I try in no root phone Android 12/13, still can install certificate

And run mitmproxy normal, there is no problem

[leaden snow]

I am pretty sure.

maybe your game bypassed the certificate verification.

there is something called apk-mitm.
or you used some module.
I am pretty sure that above android 7,user installed certificate will not be trusted,you can google it.