How to downgrade cam firmware?

[rob j]

Hi, how can I downgrade firmware on my doorbell https://shop.yooseecamera.com/doorbellcam/yoosee-smart-doorbell-intercom-rfid-function-hd-cam? It's currently running v13.01.01.34 which no longer supports ONVIF password, I'd like to downgrade to v13.00.00.xx. I've tried both placing npcupg.bin on SD card, and resetting, but no luck. I've also tried IPC_Test_Tool, but the doorbell doesn't show up on the device list.

 

[rob j]

Nevermind, I've got it to work via the SD card, just needed to hold the reset button while powering on the device.

 

[Iurii]

Please, can anyone help me? I need 21.0.1.5 Software