About the ASI2600MM Pro "Image download" Driver Errror / idea to fix it

thecounter

Hi,

I've got a brand new ASI2600MM Pro for about 3 weeks now. I'm too sometimes getting the "Driver Error -> Image download failure" message that other people are getting.

I'm using a Beelink S13 Mini-PC and a brand new Anker Solfix F1200 Powerstation for powering the camera directly via either a 230V Power Plug or a 12V Car Adapter, both rated at 5A (camera needs 3A). I also tried to connect it directly to my local power grid, but it makes no difference.

Tried a few different USB cables (USB 2 and 3), which also makes no difference. I also tried difference capturing software like NINA, ASIStudio and SharpCap, always resulting in the same issue. It's totaly random as to when it happens, sometimes at autofocus, sometimes in between long capture sessions or when centering the object I want to capture.

That's when I got the following idea:

Would it be possible for you Devs to add a function to the driver, that keeps repeating to download the image from the camera if there is a download error, while sending out a "wait" command that software like NINA / ASIStudio etc. could receive (this has to be programmed to I think)? Maybe with the option in the driver settings, on how many attempts the driver should make to download the image.

Hope it's clear what I mean. This issue is pretty annoying, especially when it happens at autofocus because it just aborts it.

Greetings and clear skies

Kevin

Depmu

thecounter I’m experiencing the same problem — it comes and goes (ASI2600MM-P25)

thecounter

An Update:

I bought 2 new USB cables, a Premium USB 3 cable for $50 and another cheap USB 2 cable for $15. No matter which cable I use (from the now 6 USB cables I've tried), it's always the same with "download error". Sometimes 10 from 30 images can't get downloaded.

I added a SDK Log from just a few minutes ago with the error:

2026-01-02 13:46:06,037: INFO ASICamera : [260E::WorkingFunc]: data length wanted: 52183296, data length got: 0
2026-01-02 13:46:06,037: INFO ASICamera : [260E::WorkingFunc]: Buffer status:11
2026-01-02 13:46:06,037: INFO ASICamera : [260E::WorkingFunc]: Data in cache is invalid, could not reload!

asicamerasdk.txt

173kB

thecounter

Depmu

You got a SDK log with this error, by any chance? Would be interesting to see if it's the same error.

If not already activated, it's pretty easy as described in the manual posted here:

https://bbs.zwoastro.com/d/14144-sdk-log

Depmu

thecounter Have they resolved it for you yet?

jsmithsd

Just last November I bought a 2600MM P25 camera from a well known dealer. That camera had constant exposure failures when the cooler was below -6C. You could just touch the usb3 cable on the back of the camera with or without the cooler running and it would through exposure failures. I also tried expensive and cheap USB3 cables and different power supplies with no help. This happened in ASIAIR, ASI Studio, NINA, and Sharpcap. The dealer sent me another camera and this one runs fine. I just completed a one night imaging run with over 100 exposures and not one single exposure failure with the second camera. I enabled the SDK logging when troubleshooting the bad camera and the data showed USB comm faults over and over again. I returned the first defective camera. ZWO appears to have a quality control issue with the 2600MM P25 cameras. I also noticed the new 2600MM P25 camera has significantly more fan vibration than my 6200MM, 6200MC, and 2400MC cameras that have been totally reliable for 4 years with no issues.

Depmu

2026-01-04 12:28:59,581: INFO ASICamera : [260E::WorkingFunc]: Begin long exp 10000
2026-01-04 12:29:10,559: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 0
2026-01-04 12:29:10,575: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 1
2026-01-04 12:29:10,591: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 2
2026-01-04 12:29:10,607: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 3
2026-01-04 12:29:10,623: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 4
2026-01-04 12:29:10,639: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 5
2026-01-04 12:29:10,655: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 6
2026-01-04 12:29:10,671: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 7
2026-01-04 12:29:10,687: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 8
2026-01-04 12:29:10,703: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 9
2026-01-04 12:29:10,719: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 10
2026-01-04 12:29:10,735: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 11
2026-01-04 12:29:10,751: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 12
2026-01-04 12:29:10,767: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 13
2026-01-04 12:29:10,783: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 14
2026-01-04 12:29:10,799: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 15
2026-01-04 12:29:10,815: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 16
2026-01-04 12:29:10,831: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 17
2026-01-04 12:29:10,847: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 18
2026-01-04 12:29:10,863: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 19
2026-01-04 12:29:10,878: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 20
2026-01-04 12:29:10,894: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 21
2026-01-04 12:29:10,910: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 22
2026-01-04 12:29:10,926: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 23
2026-01-04 12:29:10,942: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 24
2026-01-04 12:29:10,958: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 25
2026-01-04 12:29:10,974: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 26
2026-01-04 12:29:10,990: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 27
2026-01-04 12:29:11,006: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 28
2026-01-04 12:29:11,022: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 29
2026-01-04 12:29:11,038: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 30
2026-01-04 12:29:11,054: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 31
2026-01-04 12:29:11,070: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 32
2026-01-04 12:29:11,085: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 33
2026-01-04 12:29:11,101: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 34
2026-01-04 12:29:11,117: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 35
2026-01-04 12:29:11,133: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 36
2026-01-04 12:29:11,149: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 37
2026-01-04 12:29:11,165: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 38
2026-01-04 12:29:11,181: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 39
2026-01-04 12:29:11,197: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 40
2026-01-04 12:29:11,213: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 41
2026-01-04 12:29:11,229: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 42
2026-01-04 12:29:11,246: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 43
2026-01-04 12:29:11,261: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 44
2026-01-04 12:29:11,278: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 45
2026-01-04 12:29:11,294: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 46
2026-01-04 12:29:11,310: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 47
2026-01-04 12:29:11,326: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 48
2026-01-04 12:29:11,342: INFO ASICamera : [260E::WorkingFunc]: wait for xfer error:997 49
2026-01-04 12:29:11,344: INFO ASICamera : [260E::WorkingFunc]: buff status:0x11
2026-01-04 12:29:11,344: INFO ASICamera : [260E::WorkingFunc]: data length wanted: 52183296, data length got: 0
2026-01-04 12:29:11,345: INFO ASICamera : [260E::WorkingFunc]: Buffer status:11
2026-01-04 12:29:11,345: INFO ASICamera : [260E::WorkingFunc]: Data in cache is invalid, could not reload!
2026-01-04 12:29:11,345: INFO ASICamera : [260E::WorkingFunc]: get len:0x0 drop:1 frametime:497122us waittime:1ms
2026-01-04 12:29:11,345: INFO ASICamera : [CCameraFX3::GetFirmwareVer]: Ver return 1: 0x60
2026-01-04 12:29:11,345: INFO ASICamera : [CCameraFX3::GetFirmwareVer]: Get firmware ver: 0x60
2026-01-04 12:29:11,345: INFO ASICamera : [CCameraFX3::GetFPGAVer]: Get fpga model:2600, fpga ver: 1.2.0.2
2026-01-04 12:29:11,360: INFO ASICamera : [CCameraFX3::ResetDevice]: ResetDevice
2026-01-04 12:29:11,360: INFO ASICamera : [260E::WorkingFunc]: after ResetDevice
2026-01-04 12:29:11,360: INFO ASICamera : [260E::WorkingFunc]: drop frames:1
2026-01-04 12:29:11,362: INFO ASICamera : [260E::WorkingFunc]: snap Exp: EXP_FAILED:1
2026-01-04 12:29:11,362: INFO ASICamera : [260E::WorkingFunc]: working thread exit!

asicamerasdk.txt

139kB

thecounter

Thanks, so it's the same error!

No, I think they are still on holidays until the 5th and I hope someone from the support or dev team will answer us here. I need to know if I have to give the camera back and get a new one or if there is a software fix.

thecounter

Can anyone help us? Or still on holidays?

Depmu

thecounter I switched to the original ZWO power supply and stopped using the DC output from the EcoFlow Delta 3, and the camera started working normally again. I’ll continue to test it further.

thecounter

Depmu This did not work for me. Bought the power adapter for another 60€, but I'm still getting the download error.

I'll be sending the camera back to my vendor.

JAIME1

Hello. I have a MoonLite focuser and rotator that's excellent. It works with NINA, with ZWO ASI 6200 and another 2600 cameras, both excellent. Everything is connected to the Pegasus Astro Ultimate PowerBox V3. Everything works fine except that neither camera downloads files or photos. It's a complete disaster. The cameras work perfectly on a ZWO-only system with Asiar. I've been researching and other users are experiencing the same problem, and there's no response from ZWO. They say it's a driver incompatibility. The truth is, sometimes they work fine, and other times they randomly fail to download the files. But they don't offer a solution. I've already tried changing USB cables and all the numerous suggestions from the forums, but nothing works. I was wondering if I could connect my system to ASIAR and remove it from NINA and Pegasus, but still use my MoonLite for focusing and rotating. Is that compatible? Thank you very much.

thecounter

As posted in the other thread, using the Ascom driver fixed the issue for me.