@tom Thank you! I received your email. I'll try it.

Nice to meet you. My name is Jehyun Cha, and I'm newbie to RB5 flight drone.
While I tried to modify the files in the system, I erased some files and my RB5 drone does not working anymore.
I tried to re-flash the system image as mentioned in here, and I encountered the following errors;

chacha@Pinkelf:~/Downloads/1.0.5-M0052-9.1-perf-c$ sudo ./flash-full.sh
[sudo] password for chacha:
[INFO] version: 0.0
[INFO] adb installed
[INFO] fastboot installed
[INFO] qti-ubuntu-robotics-image-qrb5165-rb5-boot.img present
[INFO] abl.elf present
[INFO] qti-ubuntu-robotics-image-qrb5165-rb5-sysfs.ext4 present
[INFO] Saving camera calibration files

• daemon not running; starting now at tcp:5037
• daemon started successfully
  adb: error: remote object '/data/modalai' does not exist
  [INFO] Saving test sig
  /usr/lib/rfsa/adsp/: 9 files pulled. 1.3 MB/s (4505752 bytes in 3.298s)
  [ERROR] test sig failed to save

I searched the error and in this topic, I recognized that the missing files are the cause of the problem.
I want to restore the missing files as mentioned at the topic.
Could you check whether the backup files for my drone are left in the database?
My serial ID is as follows; M2100000CR5
If you send me the files, I'll try the solutions in the topic.
If you need more information, please let me know.

Best regards,
Jehyun

Hi, I'm newbie to Modal AI RB5.
I just received the chipset and I tried to install the SDK on it by following the guide: https://docs.modalai.com/Qualcomm-Flight-RB5-sdk-installation/

Unfortunately, when I connected it to my PC, only the Qualcomm QD Loader is shown in my device manager, not the USB devices.
Therefore, when I type 'adb devices' commands, I can't see anything.
Because the guide starts from pushing sdk through ADB, I'm stunk in here.

Is there are any steps required to use ADB on RB5 chipset?
Or, Is there are any guide that I can follow?

Any help would be greatful.
Thanks for reading.