https://www.youtube.com/watch?v=y_34fCyNCZ4&t=8s
My DJI Spark after suffering a small blow, (the drone had flown well a long time) but now when I accelerate it hard or when the drone goes down and accelerate it. Start showing the behavior of the video. (Accelerates and falls, and crashes, fails to achieve height) In advance I appreciate any advice or solution.

Hi, good day bultodepapas. We do apologize for the inconvenience that this has caused. We highly recommend you to calibrate your IMU and let's see if there are some changes.  In addition, if the IMU calibration won't help, we would highly recommend you to send your drone to our repair facility for further evaluation since this issue occurred after suffering a crashed. We have the professional team who would do their best to find out the reason for the incident and then the corresponding resolution would be provided. Please note that DJI will not perform data analysis for cases occurring after the expiry of the warranty period; otherwise, valid charges will apply. To create a ticket you may consider trying to contact our support online for them to assist you to create a case. Thank you for your kind and understanding. Have a good one.

Thanks tu S.J for the solution.

you have to adjust the following parameters in SPARK
g_config_avoid_obstacle_limit_cfg_safe_dis = 2
g_config_control_avoid_atti_range        = 10

I would try to reflash the firmware using dji assistant 2.  

Dont start with the app start function, use the CSC - Start.
Read her, but in case you still have warranty, get it to DJI, better!
https://forum.dji.com/thread-151740-1-1.html

bultodepapas Posted at 4-16 12:52
Thanks tu S.J for the solution.

you have to adjust the following parameters in SPARK

You are most welcome ! !