... the tamper probe sticker was removed to replace battery door. So I am afraid that warranty isn’t an option at this point.
Bummer. The first "out of control" flight may or may not have been pilot error. It sounds like it
might have been a yaw error, which can happen if the drone initializes itself in a magnetically compromise location, such as from steel embedded in concrete. DJI often covers those accidents under warranty. If you want to find out what happened for certain, you should follow the instructions in the "
Flight Log Retrieval and Analysis Guide", and post the log for that first crash flight here for expert analysis.
However, the second crash sounds much worse; it may have been (another?) yaw error incident, or perhaps the first crash damaged the IMU or another internal component. But at that point you were flying a drone with potential damage, which was already out of warranty from your repair attempt. So
that crash can't be considered DJI's responsibility, and there's no way to sort out what damage happened in which crash.
So I think you're on the hook for all repairs now. You can send it into DJI for that; I've found them fast and reasonably priced, but as always, YMMV. There are other reputable independent drone repair shops; one or more may chime in here.
While your drone is out for repair, you may want to read up here on the concept of "yaw errors", and how to avoid them.
