Simplify and fix emulator setup details in setup.md

Author: xukunzh

scripts/frida/setup.md

@@ -4,44 +4,39 @@
 
 ### Option A - Fully Automated 
 emulator_creator.py will:
-- Create a rooted emulator with API 28
-- Download and setup frida-server-17.2.15-android-arch
+- Create an Android emulator (API 28, Google APIs)
+- Download and install frida-server (17.2.15)
+- Configure environment
 
 ### Option B: Manual Setup
-Create your own emulator Manually:
+Create your own emulator manually:
 
-#### 1. Create AVD in Android Studio
-```bash
-## Using Android Studio GUI
-Tools → Device Manager → + Create Virtual Device
+#### 1. Create and start emulator
+For example, using Android Studio:
 - Device: Pixel 4 XL
-- System: API 29, Android 10, Google APIs
-- Arch: arm64
-```
-
-#### 2. Launch with root access
+- System: API 29, Google APIs
+ 
+#### 2. Enable root access
 ```bash
-# Launch emulator with root capabilities
-emulator -avd emulator_name -writable-system
+# Switch to root mode
+adb root
 
-Or use ? rootAVD?...
+# Should return "root" if properly rooted
+adb shell whoami  
 ```
+Note: Google APIs images allow root access by default. If you selected Google Play images, you'll need additional rooting tools like rootAVD.
 
-### 3. Install and prestart frida server
-```bash
-adb shell getprop ro.product.cpu.abilist
-
-https://github.com/frida/frida/releases/tag/17.2.15
-# Download appropriate frida-server (example for arm64)
-wget https://github.com/frida/frida/releases/download/17.2.15/frida-server-17.2.15-android-arm64.xz
-xz -d frida-server-17.2.15-android-arm64.xz  
-mv frida-server-17.2.15-android-arm64 frida-server
+#### 3. Install frida-server
+Download appropriate frida-server from [Frida releases](https://github.com/frida/frida/releases), and install:
 
-# Push to device
+```bash
+# Install to device
 adb push frida-server /data/local/tmp/frida-server
 adb shell chmod 755 /data/local/tmp/frida-server
+```
 
-# Start frida server for frida analysis
+#### 4. Start frida-server
+```bash
 adb shell "/data/local/tmp/frida-server &"
 ```