EC20 device need old firmware

Technical Subjects Open Solution
1

Hello, please help, i need firmware of version code EC20CEHDLGR06A05M1G
i have the latest version already but i need old version that i mention above.

Thanks

2

please download by link;
https://quectel123-my.sharepoint.cn/:u:/g/personal/ae-fae_dom_quectel_com_cn/EVCLsSOdXwJDq17Ro-R6D8MBxg5n-tT-W-Qgo__im9lO-g?e=NR0Bu3

3

Thanks for help sir.