<![CDATA[UIFLOW IDE 2.3.0 to Core2 v2.1.7 push don't work]]>Hello everyone,
Since upgrading to version 2.3 of the UIFLOW web IDE, when I push the program to the device (core2 v2.1.7), it restarts but there is no effect; it remains on the previous program.

This can be reproduced on other core2 devices running v2.1.7.

This fleet is remote, and I am unable to update the firmware remotely.

The console Core2 :

   _  __ _

_ ()/ | | _____ __
| | | | | || |/ _ \ \ /\ / /
| || | | | | () \ V V /
_,||| ||___/ _/_/ V2.1.7

[INFO] Syncing resources...
[INFO] WiFi connected!
[INFO] MD5 mismatch for file: main_ota_temp.py
[WARN] Failed to download file. code = 403
[WARN] Retry 1...
[WARN] Failed to download file. code = 403
[WARN] Retry 2...
[WARN] Failed to download file. code = 403
[WARN] Retry 3...
Traceback (most recent call last):
File "boot.py", line 45, in <module>
File "m5sync/sync.py", line 449, in run
File "m5sync/sync.py", line 329, in run
File "m5sync/sync.py", line 387, in process_files
File "m5sync/sync.py", line 52, in calculate_md5

]]>https://community.m5stack.com/topic/7660/uiflow-ide-2-3-0-to-core2-v2-1-7-push-don-t-workRSS for NodeWed, 29 Apr 2026 03:46:21 GMTTue, 08 Jul 2025 11:18:32 GMT60<![CDATA[Reply to UIFLOW IDE 2.3.0 to Core2 v2.1.7 push don't work on Wed, 09 Jul 2025 13:45:56 GMT]]>@kuriko

Thank you for your response.

I did this step by step.

Deleted

  • record.json
  • res.json

After pushing the code, the problem remains the same., error 403

So I Reburn the Core2.

After pushing the code, the problem block on Sync screen, error 403

I think there is a problem accessing the file bucket on Alibaba.

Or else the load transmitted by mqtt to the device is not what is expected for res and record json.

Similar of:
https://community.m5stack.com/topic/7652/uiflow-2-0-sync-error

]]>https://community.m5stack.com/post/29437https://community.m5stack.com/post/29437Wed, 09 Jul 2025 13:45:56 GMT<![CDATA[Reply to UIFLOW IDE 2.3.0 to Core2 v2.1.7 push don't work on Wed, 09 Jul 2025 08:02:45 GMT]]>@mtc_ndr
The file may be deleted on the UiFlow IDE, but the device did not receive the synchronization information or lost the synchronization information, resulting in the device being unable to download the file.
You can try the following 2 methods:

  1. Reburn the UiFlow2 firmware.
  2. Delete the 2 following files of device:
    0c174cc8-c1e8-498d-bbc2-f06be2f0da82-企业微信截图_17520479841574.png
]]>https://community.m5stack.com/post/29436https://community.m5stack.com/post/29436Wed, 09 Jul 2025 08:02:45 GMT