I'd be happy to help you with downloading the new version of the Android G3SG1 Black Sand CS GO skin.

Firstly, I'll extract the relevant information from the text:

* The skin name: G3SG1 Black Sand

* The game: Counter-Strike (CS GO)

* The platform: Android

To download the latest version of this skin, I recommend checking out some reputable sources such as:

1. Steam: You can check the in-game market or visit the Steam Community Market to see if the skin is available for purchase.

2. CS GO Skin Marketplaces: Websites like OPSkins, SkinBaron, and Skinport offer a wide variety of CS GO skins, including rare and unique ones.

3. Mobile Gaming Apps: There are several mobile apps that allow you to buy and sell CS GO skins, such as CSGO Trading Bot or Skin Trade.

Before making a purchase, please ensure that you're buying from a trusted source to avoid any potential scams.

Additionally, I can provide you with some general tips on how to get the best deals on CS GO skins:

* Keep an eye out for sales and discounts

* Compare prices across different marketplaces

* Look for rare or limited edition skins that may have a higher value

* Consider trading your existing skins for more valuable ones

Let me know if you need any further assistance!

Download the new version for android G3SG1 Black Sand cs go skin