diff --git a/.gitignore b/.gitignore
index 0270dbf4..cf542f47 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,7 +45,6 @@ captures/
 
 # External native build folder generated in Android Studio 2.2 and later
 .externalNativeBuild
-*.zip
 
 # Google Services (e.g. APIs or Firebase)
 google-services.json
diff --git a/app_main/src/main/assets/proxmark3.zip b/app_main/src/main/assets/proxmark3.zip
new file mode 100644
index 00000000..31fc32cd
Binary files /dev/null and b/app_main/src/main/assets/proxmark3.zip differ
diff --git a/app_main/src/main/java/cn/rrg/rdv/util/Proxmark3Installer.java b/app_main/src/main/java/cn/rrg/rdv/util/Proxmark3Installer.java
index 2f9ca932..0290921c 100644
--- a/app_main/src/main/java/cn/rrg/rdv/util/Proxmark3Installer.java
+++ b/app_main/src/main/java/cn/rrg/rdv/util/Proxmark3Installer.java
@@ -3,8 +3,6 @@
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
-import android.system.ErrnoException;
-import android.system.Os;
 
 import com.termux.app.TermuxService;