Thursday, November 3, 2016

Solution to Installation Unsuccessful Error on Android

For all kinds of reasons, we may get a pop up error info by saying that "Installation unsuccessful" on your Android phone or tablet. This will trouble you so much. The method of solving Android apps installation failure when you installing apps from Google Play is very easy. What you need to do is to follow the steps below:

Solution 1: Clear Google Play Store Data and Cache

Head to "Settings" > "Applications" > "Manage Applications". Find the Google Play Store app from the list and hit on "Clear data" and "Clear cache".


Solution 2: Uninstall Google Play Store Updates

Uninstall Google Play Store Updates with following steps: "Settings" > "Applications" > "Manage applications" > find Google Play Store > select "Uninstall updates".


Solution 3: Uninstall and reinstall app

If you still get the prompt that the installation fails after clearing Google Play data/cache and uninstalling Google Play update, please uninstall the app and reinstall it: Go to "Settings" > "Applications" > "Manage Applications". Then, locate the app that fails to be installed. And choose "Uninstall" to remove the app. After that, open Google Play Store to reinstall the app.

Solution 4: Unmount SD card
If that still doesn't help, go to "Settings" > "SD card and Phone Storage" > "Unmount SD card".


Note: If you are afraid that the data on your SD card will get lost or corrupted while unmounting SD card, you canback up Android data with simple steps before that.

Solution 5: Delete .android_secure folder

If your Android has been rooted, you will find an ".android_secure" folder in the SD card. You should be aware that any corrupted data in this folder will lead to installation failure on Android phone/tablet. To solve this, you just need to delete the folder.

Even if we have no ideas about the reason of appearing installation error, we can try different solutions provided above. Please contact us if any questions you have when installing.

Monday, October 31, 2016

According to the mobile security team in September released the second quarter of 2015 mobile security report [1], 16 top10 industry applications a total of 8515 security vulnerabilities, an increase of 77% over the previous quarter. Among them, Denial of Service, Webview Remote Code Execution, AES / DES Weak Encryption, and Webview Clear Text Storage are all more than 15% of the total vulnerabilities. But it is worth all the developers pondered that this phenomenon has not improved over time, and APP was attacked, APP owners or ordinary users of the loss suffered cases are not uncommon, the mobile application security situation should cause more attention. APP in the existence of these loopholes, the loopholes in the principle of what? What harm? APP developers how to solve? And let small series enumeration one or two loopholes for your popularity.

1Denial of Service Vulnerability

1.1 loopholes principle

Android system provides the Activity, Service and Broadcast Receiver and other components, and provides an Intent mechanism to assist the interaction and communication between applications, Intent is responsible for the operation of an application action, action related to data, additional data to describe, Android system is based on The description of this Intent is responsible for finding the corresponding component, passing the Intent to the calling component, and invoking the component [2].

Android application local Denial of Service vulnerability from the program did not Intent.getXXXExtra () to obtain the exception to capture, or in the abnormal data processing without abnormal capture, resulting in an attacker can be sent to the application by attacking the null data, abnormal or abnormal Data to achieve the purpose of the application crash, in short, is the intent of the attacker to send empty data, abnormal or abnormal data to the victim application, leading to its collapse.

1.2 Vulnerability hazards

Local denial of service vulnerabilities affect all versions of Android, not only can lead to security applications bypass or failure (such as antivirus software, security guards, anti-theft lock screen, etc.), but also can be used to attack competitors, making their own applications Collapse, resulting in varying degrees of economic loss.

In the second quarter of 16 industries top10 applications, the number of denial of service vulnerabilities than the first quarter rose 107%, its growth and the existence of security risks require developers to be vigilant as soon as possible to take security solutions self-test APP loopholes Situation and timely repair. For a detailed analysis of the denial of service vulnerability, please refer to the Alibaba security blog article

2Webview Remote Code Execution Vulnerability

2.1 loopholes in principle

A remote code execution security vulnerability exists in the Android API level 16 and earlier versions of the program that does not properly restrict the use of the WebView.addJavascriptInterface method by which the Android system registers Java objects for JavaScript invocation for enhanced JavaScript functionality . But the system does not register Java class method call restrictions. Leading to an attacker can use the reflection mechanism to call any other Java class is not registered, eventually leading to an infinite enhancement of JavaScript capabilities. The attacker can exploit this vulnerability according to the client ability to do whatever they want, such as remote control of user mobile phone, steal user privacy information.

2.2 Vulnerability hazards

Webview remote code execution vulnerability affects pre-Android 4.2 system versions. A variety of popular Android applications have been exposed high-risk hanging horse vulnerability: click on a message or a circle in the circle of friends, the user will automatically execute the phone code is linked to horse instructions, resulting in malicious software installed deductions to friends Fraud SMS, address book and text messages were stolen, mobile phones and other serious consequences of remote control. In the black cloud platform, including the Android version of the WeChat, QQ, Tencent microblogging, QQ browser, fast broadcast, Baidu browser, Jinshan browser and other large TOP applications are exposed the same type of vulnerability. Such as millet mobile phone hardware, Google glasses, etc. have been exploded with the loopholes.

For a detailed explanation of the vulnerability of WebView remote code execution, please refer to the Ali security blog article

From our 2015 mobile security report can be seen in the second quarter, mobile applications vulnerabilities can not be optimistic, popular APP also exist a variety of vulnerability risks, APP developers or users of the APP security risks, developers need to quickly Take a security solution that addresses these security risks and create a credible mobile application. Ali mobile security team produced Ali poly security solutions for mobile APP security risks, so that one-stop problem-solving, problem solving, and long-term monitoring.

3Poly-security solutions

Alien Security (, released on October 22, 2014, is a secure open platform for developers and enterprise customers with malicious code detection, vulnerability scanning, counterfeit monitoring, security components , Application reinforcement and other mobile applications to solve security issues, while with garbage registration, cheating activities, account theft, channel cheating and other business risk prevention and control services, from application security to business security, all customers to solve security problems, Escort business healthy growth.

User Guide for Android Manager

1.Brief Introduction:
Android Manager is a super mobile toolbox,which provide you more effective ways to manage your iOS/Android device.For Android users, you constantly encounters situations like data transfer and data backup.This assistant tool is your best choice.It could deal with various data types like:Apps, SMS , Media Files and Documents. Easy Text Message and contacts.It could also convert Audio to Video.It supports Window 10/8.1/8/7/XP,and compatible with Android 6.0.

2.Download apps from Android Manager:
RenewAndroid provide you to download online resources in One Place.
You can add all websites that you go frequently such as Youtube, Facebook, Myspace and so on. Android Manager can help you visit them more handily and efficiently.One click to download apps from Google Play and videos from YouTube Android Manager provide Google Play and YouTube to download apps and video, so you can play and watch everywhere.

For Android users:
Under Download tap,search for apps your need,the files will be download from built-in Google Play.
For iOS users
Under Download tap,search for apps,music,vedio for your need.The vedio will be load from built-in Youtube.

3.Connect Your Device
Connect your device to RenewAndroid-Android Manager, You can just connect through your cable,or via wifi.

4.Manage Android Apps
Install the apps under My Device Tap.To uninstall,just tick on the one you want to remove.
Export Apps to Computer:
Step 1. Click User Apps or System Apps in the left side of Apps category.
Step 2. Check the apps you want to export or backup the datas to computer. 
Step 3. Click Export. In the pop-up Windows file browser window, select a save path and click Save to export the apps.

5.One Click to Backup and Restore Android Data
After connected your device,click on Backup,the contacts, SMS, music, videos, apps and photos should be copy and backup to your computer instantly with the help of RenewAndroid-Android Manager.

6.Media Files Transfer without Boundaries
After connected your device,drag-and-drop to manage any files in SD Card.
Android Manager can various format of music and vedios:
Video: convert MPEG/MPG/DAT, AVI, MOV, ASF, WMV, MKV, FLV to MP4, MP3.
Audio: convert AC3, APE, AIF, AIFF, AMR, AU, FLAC, M3U, MKA, MPA, MP2, WMA, AAC to MP3.