It took DJI 22 days of asking questions and reading my flight logs before they told me that a battery failure which caused my crash was not under warranty because I used a 3rd party app. I advised them in the beginning that I used Litchi. But how can an App cause a cell to go bad? DJI support.us via freshdesk.com 1:49 PM (47 minutes ago) to me Dear Mr. 6 Our company does not warranty flights that have been flown with 3rd party applications We would like to offer you 15% off a new purchase of a Phantom 3 Professional - Aircraft (Excludes Remote Controller and Battery Charger) To accept this offer, please reply affirmatively, and a coupon code for this item will be mailed to you. Please also reply with your proof of purchase for your product. **Failure to include the proper paperwork and proof of purchase will delay this process.** Thank you for your patience and support of DJI.