如何解开这个密码锁？

如题，这是某安卓手表开发者模式的密码锁。

我想解开这个锁，目前我拿到了设置的apk，从classes.dex中提取出了一段代码，应该是和密码锁有关。
package com.qihoo360.kidwatch.settings.develop;

import android.content.Context;
import android.provider.Settings.Global;
import android.text.TextUtils;
import com.wolf.kids.framework.device.WolfPlatformManager;
import com.wolf.kids.utils.AESUtils;
import com.wolf.kids.utils.MD5Utils;
import com.wolf.kids.utils.StrUtil;

public class DevelopModeHelper {
private static final String TAG = "DevelopKeyRoute";
public static final String TYPE_DEVELOPER_MODE = "develop_mode_code";
public static final String TYPE_FACTORY_MODE = "factory_mode_code";
private static final String iv = "eip97324acpamzbv";
private final Context mContext;
private String mDevelopCode;
private String mFactoryCode;

private String generateKey() {
    String[] sort;
    WolfPlatformManager instance = WolfPlatformManager.getInstance(this.mContext);
    String deviceKey = instance.getDeviceKey();
    String deviceId = instance.getDeviceId();
    String encode = MD5Utils.encode(instance.getHardCode());
    if (TextUtils.isEmpty(deviceKey)) {
        sort = StrUtil.sort(new String[]{instance.getIMEI(), instance.getQRCode(), encode});
    } else {
        sort = StrUtil.sort(new String[]{deviceKey, deviceId, encode});
    }
    return MD5Utils.encode(StrUtil.dumpStringArray(sort));
}

private String getCode(String str) {
    str = AESUtils.encryptAESBase64(generateKey(), iv, str);
    int length = str.length() / 6;
    StringBuilder stringBuilder = new StringBuilder();
    for (int i = 0; i < 6; i++) {
        stringBuilder.append(str.charAt(i * length) % 10);
    }
    return stringBuilder.toString();
}

public boolean openDevelopMode(String str) {
    if (TextUtils.isEmpty(this.mDevelopCode)) {
        this.mDevelopCode = getDevelopModeCode();
    }
    boolean equals = this.mDevelopCode.equals(str);
    Global.putInt(this.mContext.getContentResolver(), TYPE_DEVELOPER_MODE, equals);
    return equals;
}

public boolean openFactoryMode(String str) {
    if (TextUtils.isEmpty(this.mFactoryCode)) {
        this.mFactoryCode = getFactoryModeCode();
    }
    boolean equals = this.mFactoryCode.equals(str);
    Global.putInt(this.mContext.getContentResolver(), TYPE_FACTORY_MODE, equals);
    return equals;
}

public DevelopModeHelper(Context context) {
    this.mContext = context;
}

public static void hideDevelopMode(Context context) {
    Global.putInt(context.getContentResolver(), TYPE_DEVELOPER_MODE, 0);
}

public static void hideFactoryMode(Context context) {
    Global.putInt(context.getContentResolver(), TYPE_FACTORY_MODE, 0);
}

public static boolean isDevelopModeOpen(Context context) {
    return 1 == Global.getInt(context.getContentResolver(), TYPE_DEVELOPER_MODE, 0);
}

public static boolean isFactoryModeOpen(Context context) {
    return 1 == Global.getInt(context.getContentResolver(), TYPE_FACTORY_MODE, 0);
}

public String getDevelopModeCode() {
    return getCode(TYPE_DEVELOPER_MODE);
}

public String getFactoryModeCode() {
    return getCode(TYPE_FACTORY_MODE);
}

}
（注意，上面那段没有放进代码框的也是代码）
我是个小白，不懂代码，希望各位DALAO看看，本人感激不尽。
完整安装包:

提取码: prnm

这几句表明加密方式和你的设备有关，只有个安装包是解不开的：

String deviceKey = instance.getDeviceKey();
String deviceId = instance.getDeviceId();
String encode = MD5Utils.encode(instance.getHardCode());