ChevronWP7 allow a WP7 handset owner to side load applications that aren’t allowed in the Marketplace due to the use of private APIs.
The tool is called ChevronWP7, and it’s a single executable file that you can be run from any computer running Windows XP SP2 and up. You will need to have the Zune Desktop software installed on your computer, and you’ll need to connect your phone to your PC with a USB cable.
Apple doesn’t officially allow users to install third party apps on iOS devices unless they’ve been approved by Apple and posted in the App Store (although there are third party app stores for jailbroken devices). Google has its own Android Market app store, but most Android phones can accept non-market apps when you check a simple option in the settings menu. So what about Microsoft’s new Windows Phone 7?
It turns out that out of the box, Windows Phone 7 is at least as restrictive as iOS. The only easy way to install third party apps is to download them from the Windows Phone Marketplace — unless you pay $99 per year for a marketplace registration account (which basically gives you developer access… and clearly developers might need to install apps to test them before submitting them to the Marketplace).
To unlock just follow the steps below
- Log in to ChevronWP7 Labs with a Windows Live account.
- Purchase ChevronWP7 unlock tool for $9 (per device) using PayPal or a supported credit card.
- Download and install unlock tool.
- Launch unlock tool and use on-screen instructions to get your device placed in unlock queue.
- Once your device has been accepted for an unlock from the ChevronWP7 team, your device will, well, be unlocked
Unlocking your Windows Phone 7.x device means having privileged access to it so you can install apps or tweaks – called homebrew applications – which are unauthorized and have some sort of functionality that causes them to be rejected from the Windows Phone Marketplace. Besides this, it means you get to experiment with apps without paying a hefty $99 fee to become a licensed Windows Phone developer