Talented developer Luca Todesco just has released latest update of the Yalu jailbreak tool jailbreak iOS 10.2 , still this tool supports for limited iOS device such as iPhone 6S, iPhone 6S Plus, iPhone SE and iPad Pro.

The jailbreak is quite recently discharged and not steady as it still in beta stage. Along these lines you need to proceed with the jailbreak procedure with your own hazard. Additionally, there are a few constraints and similarity issues with jailbreak as not completely bolstered for all device and full support of iOS 10 adaptations.
Yalu latest tool supporting devices
iPhone 6S Plus, 6S.
iPad Pro.
iPhone
still Yalu tool unsupported with this device
iPhone 7 Plus,7
iPhone 6 Plus, 6
iPhone 5s, 5,5C
iiPad Air 2, Air
iPad 4
iPad mini 4, mni2, mini 3
simple guide how iOS 10.2 jailbreak using cydia Impactor and Yalu jailbreak tool
step 1
get backup your device with iTunes or iCloud
step 2
download cydia Impactor and Yalu jailbreak IPA file using the below link.
Download iPA file of Yalu jailbreak tool Yalu102_alpha.ipa.
Step 3
Open cydia Impactor on your computer
Step 5
Connect your device to computer using USB cable.
Step 6
Drag and drop Yalu102_alpha.ipa file on to the cydia Impactor
Step 7
Enter Apple ID nad Password in massage box.
Step 8
After complete successfully install process you can see Yalu102 icon on your Home screen.
Step 8
Now you have trust Yalu102 app with Apple developer, you can do it such as Go to Settings >> General >> Profiles & Device Management >>DEVELOPER APP SECTION & trust.
Step 9
Now go to Home screen and click on the Yalu102.
Step 10
Click the go button and it will start jailbreak process and do not any touch until complete jailbreak your devices.