I'm getting an error code 12 that says unable to take off.
Any idea what is the issue here and if there is a solution?

Thank you

Have you recently reinstalled the propellers? If so, make sure they are in the correct locations. Check the user manual.

Hello there. I am sorry to know that you had an issue with your DJI Mavic Mini and thank you for reaching out. As GaryDoug posted on post #2. Please be mindful when placing the propellers to your DJI Mavic Mini. There are 2 types of DJI Mavic Mini propellers, which are designated to spin in different directions. Marks are used to indicate which propellers should be attached to which motor. The 2 blades attached to on motor are the same. As shown below. Please keep us posted and have a safe flight always.