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SignUp Now!same here, i want to downgrade from 21.1.0.8 to 21.0.0.26 but got MD5 failedAnyone have a list of firmware that work's with a recod function.
I have downgrade some firmware about some cam, but I have the same error mask: Device 9033659 upgrade failed. Upgrade file check MD5 failed.
Can anyone help me please?
how you can downgrade ?It work fine now!!!!!
Thankyou very very very very much!!!!
You can not downgrade the firmware via smartphone App, you can manually downgrade its firmware by using the following methods:
1. Put firmware file in to the rooter folder of memory card, then insert it to the camera, and press reset button up to 5 seconds, the camera will start to flash firmware.
2. Download/use IPC debug tool, using the tool to flash firmware.
Reference: https://www.unifore.net/ip-video-su...camera-debug-software-download-and-guide.html
The latest IPC debug tool: https://support.yooseecamera.com/threads/203/
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