Frame retrieval issue with RealSense firmware 05.16.00.01 (Android Java)

[jaydesai111]

                                                     |---------------------------------|------------------------------------------- |

| Camera Model | {D400 } |
| Firmware Version | (Open RealSense Viewer --> Click info) |
| Operating System & Version | Android |
| Platform | Android smart phone |
| SDK Version | using librealsense from android wrapper class as not able to download from jfrog |
| Language | java |
| Segment | Smartphone } |

Issue Description

Description:

I'm encountering an error when attempting to retrieve frames from a RealSense camera in an Android Java application. Here's a breakdown of the issue:

Functionality: Able to successfully retrieve frames using config.enableStream(StreamType.ACCEL, StreamFormat.MOTION_XYZ32F) with firmware version 05.12.15.50.
Error: "frame didn't arrive within 5000" error occurs when using firmware version 05.16.00.01.
Library: Using librealsense library from android wrapper class and it's not updated since last one year.
Observed Behavior:
This issue also appears in the official GitHub Android wrapper example and the RS Camera application available on the Play Store. works well with firmware version 05.12.15.50 but not with 05.16.00.01.

[MartyG-RealSense]

Hi @jaydesai111 Which version of the RealSense SDK are you using, please? Firmware 5.12.15.50 is designed for use with SDK version 2.48.0, whilst 5.16.0.1 is designed for use with SDK version 2.55.1.

[MartyG-RealSense]

Hi @jaydesai111 Do you require further assistance with this case, please? Thanks!

[MartyG-RealSense]

Case closed due to no further comments received.

[jaydesai111]

As mentioned in issue #13279, I downgraded my Intel RealSense camera firmware, and the motion frame retrieval was working fine. However, for testing purposes, I upgraded the firmware to version 05.16.00.01. Now, I am unable to downgrade the firmware back to version 05.12.15.50.

I have tried multiple methods to downgrade the firmware, including:

Using the DFU tool
Using the rs-fw-update tool
Performing a hardware reset from the Intel RealSense Viewer
However, I keep receiving the following message:
"Device is locked for update. Use firmware version higher than 05.16.00.01."

Please advise on how to resolve this issue and downgrade the firmware successfully.

[MartyG-RealSense]

Hi @jaydesai111 RealSense cameras have a limit of 20 downgrades. Once that number is reached then the camera becomes permanently locked for downgrades and you can only upgrade to versions newer than the one currently installed in the camera. There is no way to reset the downgrade counter to zero, unfortunately.

[jaydesai111]

I would appreciate your assistance in retrieving IMU (MOTION Frame) data using firmware version 05.16.00.01. I am developing an Android application with Librealsense version 2.55.1. Since there is no official Android support for RealSense, I integrated the Librealsense application from [this repository]****(https://github.com/IntelRealSense/librealsense/tree/master/wrappers/android/librealsense)** as a module into my project and am using it as a library. @MartyG-RealSense

[MartyG-RealSense]

As you mentioned, the android/librealsense module you are using has not been updated since last year.

It is possible to build the Android wrapper from source code in Android Studio for the current latest librealsense 2.55.1 using the instructions at the link below.

https://github.com/IntelRealSense/librealsense/tree/master/wrappers/android#build-with-android-studio

Alternatively, you could try using librealsense 2.50.0, which has been shown to be able to work with firmware 5.16.0.1 even though 5.16 was not designed for use with it. 2.50.0 would pre-date various changes that have been made to the SDK's IMU support recently, such as 2.55.1's introduction of variable IMU gyro sensitivity on D455 and D435i.

[jaydesai111]

@MartyG-RealSense
I have tested the RealSense RSCamera app (developed by Intel Corporation), which uses librealsense version 2.50.0, and encountered the same issue—unable to retrieve motion frames.

I would greatly appreciate it if you or someone from your team familiar with the Android wrapper class could share insights on this issue. Our project requires access to both the release angle data and depth data.

Thank you for your assistance!

[MartyG-RealSense]

Hi @jaydesai111 There is an existing internal Intel bug report relating to problems with using MotionFrame() beginning at librealsense 2.50.0. I will re-open your issue and add a comment about your case to that report.

[jaydesai111]

@MartyG-RealSense Thank you

[jaydesai111]

Hi @MartyG-RealSense

We have temporarily downgraded all of our RealSense cameras to firmware version 5.12 in order to receive both depth frame and IMU data. However, I would greatly appreciate it if you could let us know when the bug is fixed, as we are working on a very important project where the quality of depth data and angle precision are crucial for generating accurate results. There is a possibility that the depth quality in firmware version 5.12 may not be as optimal as in the latest firmware (5.16), and we would prefer to use version 5.16 to ensure we achieve the best possible quality.

Your update on this would be extremely valuable for our team. Thank you in advance!