Which firmware to use ?

[bewe2005]

Hello all,

i got this cam:
https://www.amazon.de/%C3%9Cberwachungskamera-CACAGOO-Nachtsicht-Bewegungserkennung-Intelligenter-Schwarz/dp/B07WD8VC5M/ref=pd_sbs_24?pd_rd_w=88ZHj&pf_rd_p=c47a53d1-d94f-481c-a018-dcea8bd5c736&pf_rd_r=09JVGPJ75PFS4VPG4NND&pd_rd_r=b280ba81-ef83-4da5-9ffe-607ac58d99e3&pd_rd_wg=WDE3F&pd_rd_i=B07WD8VC5M&psc=1

but i cant figure out which hardware/chipset is built in and what firmware i should use.
its called OWSOO 1080p Model XY-R9820-F4 and works with YI IOT Home app
App shows Firmware FW 7.1.00.25A_2020022711051
MAC-Adress 44:01:BB:xx:xx:xx is pointing to Shenzhen Bilian Electronic Co.，Ltd
ID A0016000R1R85Lxxxxxxxx

a portscan on all ports (1-65500) shows all closed, ssh/telnet/https not responding

Dont know if its an Hisilicon chip or something else

Any ideas to find out ?