so i binned my mavic air 2 pretty hard last weekend, caught a tree branch at about 40mph and it just dropped straight down into a rocky embankment. front left arm is cracked near the hinge and the motor on that side just hums and gets hot but doesnt actually spin. the other three motors seem fine, did the spin test in the app and theyre smooth.

ive replaced motors before on my freestyle quads so im not totally lost but this is different obviously - the arm is partially integrated and im not sure if i can just swap the motor without dealing with the arm situation. the crack isnt all the way through but its definitely not structural anymore, flexes when i push it.

anyone dealt with this specific kind of damage? trying to figure out if i should source just the motor and try to work around the cracked arm or just bite the bullet and get a whole replacement arm assembly. ifixit has some stuff but the guides look a bit sketchy on the torque specs for those tiny screws and i really dont want to strip anything.

had almost the exact same thing happen with mine, different cause but same result - cracked arm and a fried motor. honestly if the arm is flexing you really need to replace it, running it with a compromised arm is just asking for a second crash because the vibrations alone will mess with the IMU readings and youll get weird drift. the motors are like $30-40 from the usual places but the arm assembly is more like $80-90 depending on where you look. i went with the full arm replacement and its been solid since, just take your time with the ribbon cable if yours has one running through the arm, those are easy to nick.

not sure about the mavic specifically but i stripped two screws on a similar repair once and it turned out to be way more painful than just ordering the full assembly from the start. jm2c but unless youre really confident with those pentalobe or whatever tiny screws they use i'd just go whole arm. youtube has a couple decent teardowns if you search the exact model, some guy in germany does really thorough ones.