I tried to run these two examples from the docs: 1. https://docs.luxonis.com/software-v3/depthai/examples/rgbd_autocreate/ 2. https://docs.luxonis.com/software-v3/depthai/examples/rgbd/rgbd/ I've installed depthai v3 (following these instructions https://docs.luxonis.com/software-v3/depthai/ ) and have an OAK-D lite camera connected via USB. Running the code examples in python gives the following error: `[194430108128D32600] [1.1] [16.440] [Camera(2)] [error] Invalid configuration or input image - skipping frame` `[194430108128D32600] [1.1] [16.472] [Camera(2)] [error] Not possible to create warp params. Error: WARP_SWCH_ERR_CACHE_TO_SMALL` Could you please help me to fix this?

Hey @"flash"#p30740 , I tested the examples on a similar RVC2 device and they’re working fine. Which version of `depthai` are you using? Could you try updating to the latest version and see if the issue persists? Best, Oskar

I'm using: depthai 3.0.0rce installed in a conda environment Ubuntu 22.04 Camera is OAK-D Lite fixed focus Local host shows device not detected even though it is plugged in: [upl-image-preview uuid=179e988c-d296-4f1b-8046-6a7fe42b6cea url=https://discuss.luxonis.com/assets/files/2025-08-05/1754408092-943932-image.png alt={TEXT?}]

@"flash"#2599, Did you follow our USB deployment guide? On Linux there are a few extra setup steps (like installing udev rules) to get the camera detected properly: Once you've gone through that, I recommend testing the camera with the OAK Viewer to confirm everything is working: Thanks Oskar

Thanks, after installing the udev rules, uninstalling depthai-viewer, and installing the OAK-viewer .deb the original error is still there. Restarting the computer did not help either. The camera is still not working for both RGBD examples. Other examples, like capturing a still image (https://docs.luxonis.com/software-v3/depthai/examples/camera/camera_still_max_res/) work fine. OAK-viewer works as shown below: [upl-image-preview uuid=c8626e0f-876e-4694-b3de-52dfc39dede7 url=https://discuss.luxonis.com/assets/files/2025-08-06/1754512677-411206-image.png alt={TEXT?}]

I have two OAK-D Lite cameras. Why does the example work on one camera and not the other? Both cameras are new, kept in the box and not used much apart from running some examples a few months back. Do I need to run some kind of firmware update on the faulty camera? The error message seems to suggest memory issues on camera 2 (not sure what that means in Luxonis context). Also, is there a way to check the sensors on both cameras, like if both have an internal IMU?

Hey @"flash"#2599, Sorry for the wait, had to check with the team … It’s likely the issue is with the calibration on the camera that’s failing. Could you run this script on both cameras (one at a time) and send us the generated files? ``` import depthai as dai from pathlib import Path import json def to_obj(x): """DepthAI may return a dict or a JSON string depending on version.""" return x if isinstance(x, dict) else json.loads(x) with dai.Device() as dev: devid = dev.getDeviceId() # Effective (user) calib = factory + any user overrides eff = to_obj(dev.readCalibration2().eepromToJson()) # Factory-only calib (read-only from manufacturing) fac = to_obj(dev.readFactoryCalibration().eepromToJson()) bundle = { "meta": { "deviceId": devid, "depthai_version": getattr(dai, "__version__", "unknown"), }, "USER CALIBRATION": eff, "FACTORY CALIBRATION": fac, } out = Path(f"{devid}_calibration.json") out.write_text(json.dumps(bundle, indent=2)) print(f"Wrote {out.resolve()} " f"(effective size: {len(json.dumps(eff))} bytes, " f"factory size: {len(json.dumps(fac))} bytes)") ``` Thanks, Oskar

The output from the first camera (the one where the examples don't work, yielding the errors above) was generated. However, this forum does not allow uploading of .json files. You can download it from [here](https://drive.google.com/file/d/1wC0M8iKD3UiFIAOzDqPDWqIfXZFXBQ57/view?usp=drive_link). The code failed to run on the second camera (the one where the RGBD examples worked). The error is: `File "/home/main.py", line 15, in ` ` fac = to_obj(dev.readFactoryCalibration().eepromToJson())` ` ^^^^^^^^^^^^^^^^^^^^^^^^^^^^` `depthai.EepromError: No or invalid EEPROM configuration flashed, error: EEPROM_INVALID_DATA`

Hey @"flash"#2599, Thanks for sending the calibration dump from the camera that’s failing. Could you please run the updated calibration bundle script below on your working OAK-D Lite as well? ``` import depthai as dai, json from pathlib import Path def to_obj(x): # dict vs str across versions return x if isinstance(x, dict) else json.loads(x) with dai.Device() as dev: devid = dev.getDeviceId() eff = to_obj(dev.readCalibration2().eepromToJson()) fac = None try: fac = to_obj(dev.readFactoryCalibration().eepromToJson()) except dai.EepromError: fac = None # factory partition not present/invalid is OK on some units bundle = { "meta": {"deviceId": devid, "depthai_version": getattr(dai, "__version__", "unknown")}, "USER CALIBRATION": eff, "FACTORY CALIBRATION": fac, } out = Path(f"{devid}_calibration_bundle.json") out.write_text(json.dumps(bundle, indent=2)) print(f"Wrote {out} " f"(user bytes={len(json.dumps(eff))}, " f"factory bytes={len(json.dumps(fac)) if fac is not None else 0})") ``` Once we have the dump from the working camera too, we can compare the two and confirm the next steps. Thanks! Oskar

Do some OAK-D Lite cameras not store calibration data in EEPROM? Where is it otherwise stored? You can download the generated file for camera 2 [here](https://drive.google.com/file/d/1qtDJOzdi6KnLsox6l3kfmoW_LliwYn6s/view?usp=sharing).

Hey @"flash"#2599, Thanks for sending both dumps — they’re quite different, which points to a calibration issue on the camera that fails. This can cause the `WARP_SWCH_ERR_CACHE_TO_SMALL` errors in the RGB-D examples. Also, to answer your earlier question: yes, some OAK-D Lite units don’t have a separate factory calibration partition in EEPROM. In those cases, the device only has a user/effective calibration area in EEPROM, which is what DepthAI uses at runtime. Thanks

RGBD examples not working with OAK-D lite camera

OskarSonc

flash - your IMU only exports raw data so there si no calibration.
I can send you an empty calibration, but each camera has it's own since its needed for good depth...
Do a manual calibration, then try the examples that were not working.

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