Mavic communication failure, scan stuck at 20%, suspected mainboard failure (any similar cases?)

SantiAli98 · 2026-01-27T17:14:15-0500

Hi everyone,

I’m posting to see if anyone has experienced something similar with a Mavic 4 Pro, or has insight into this type of failure.

The drone suffered a loss of communication / link issue, after which it would no longer connect properly. I took it to an official DJI service center in Argentina, where they attempted diagnostics and firmware scans. The issue is that:
- The diagnostic scan never completes (gets stuck at ~20%)
- It throws an error during the process
- Firmware update / recovery fails every time
- They are unable to fully read or communicate with the aircraft

According to the service center, this behavior is consistent with a mainboard / flight controller failure, and they mentioned that this type of board is not repairable, only replaceable. There are no signs of impact, crash, or water damage, and the issue appeared suddenly. Batteries, controller, and external components were ruled out. The unit is now being sent to DJI USA by the importer (the importer is the original purchaser on record, not me as an end user), so I’m waiting for DJI’s evaluation.

My questions are:
- Has anyone here had a Mavic 4 Pro (or similar recent DJI model) fail in this way?
- Specifically: inability to complete scans, persistent communication errors, or confirmed mainboard failure?
- If so, how did DJI handle it (replacement / repair / goodwill)?

Any experience or insight would be really appreciated. I’m trying to understand whether this is an isolated case or something others have encountered as well.

Thanks in advance

GFields · 2026-01-27T17:34:04-0500

Greetings from Birmingham Alabama USA: welcome to the forum! We look forward to hearing from you!

Mine updated with no problems.

Not sure how to advise you other than sending it in for an evaluation. However, I would make sure that my internet connection was good and try again. Even use a different internet source.

When I did my updates, I was actually in the field and using my iPhone as a hotspot.

Good luck and keep us apprised.

GadgetGuy · 2026-01-28T04:23:35-0500

SantiAli98 said:
The unit is now being sent to DJI USA by the importer (the importer is the original purchaser on record, not me as an end user), so I’m waiting for DJI’s evaluation.

My questions are:

- If so, how did DJI handle it (replacement / repair / goodwill)?

Any experience or insight would be really appreciated.

Regardless of the issue, based upon all known information, DJI USA is in no position to help. The Mavic 4 Pro was never sold by DJI USA, and they have no access to Refurb units for warranty issues nor repairs. They are no longer even trying to handle Mavic 4 Pro warranty or repair claim refurbs through DJI Canada because they cannot get them across the border. U.S. Customs is stopping all DJI USA imports from DJI Canada.

Your importer could not have acquired your unit from DJI USA. It has to be a grey market drone, intended or some other region, where any warranty issues must be handled through the original country from which it was actually imported. Your only recourse is to have your importer replace your unit from new stock, and make them deal with the real country of origin, to get their replacement unit back, to make them whole for the unit they replace yours with, from that country’s DJI division, by sending your defective unit to that country.

Good luck!