I did the unboxing of my Drone Spark with combo Fly More and after I made the connection with DJI Go4 it was tried to do an update.
The process was up to 99%, at which point the drone hung up and did not call anymore. Both batteries have only 2 leds on and they do not charge anymore.
If you can power up the drone with this battery, you can try to re-upgrade the drone. If the spark will not power up with this battery, please contact the Support to start a case, send the battery in for diagnosis. http://www.dji.com/support
I did the unboxing of my Drone Spark with combo Fly More and after I made the connection with DJI Go4 it was tried to do an update.
Leandro, did you try to update it through DJI Assistant 2? Please download the latest version throught our official website and update again. Here is the website: https://www.dji.com/spark/info#downloads.
I got in touch with DJI support and tried to do via DJI Assistant on the computer, but Spark did not respond with either battery. Unfortunately I returned the product to the store that I bought and I'm waiting for a replacement.