# Request backup files for system image re-flashing

Source: https://forum.modalai.com/topic/1002/request-backup-files-for-system-image-re-flashing
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: rb5
Posted: 2022-06-10 06:00:02 UTC by JehyunCha
Replies: 3 · Views: 963

## JehyunCha · 2022-06-10 06:00:02 UTC

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](https://docs.modalai.com/Qualcomm-Flight-RB5-system-image/), 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](https://forum.modalai.com/topic/915/error-test-sig-failed-to-save-when-installing-system-on-rb5), 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

## Reply by modaltb (ModalAI staff) · 2022-06-13 15:42:21 UTC

Hi @JehyunCha ,

Sorry for the lag, we'll contact you shortly with instructions

## Reply by tom (ModalAI staff) · 2022-06-13 16:56:48 UTC

@JehyunCha I will send you an email to the address associated with your account here on the forum with your files and instructions on how to proceed.

## Reply by JehyunCha · 2022-06-15 01:00:28 UTC (in reply to tom)

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