How to scan the code from Henan Province to Kuiwen District, Weifang City, Shandong Province?

The reason why the code can't be scanned from Henan Province to Kuiwen District, Weifang City, Shandong Province is that the cell phone signal is not good. It is caused by bad cell phone signal and cell phone delay. It is recommended to try several times or turn it off before turning it on. It should be noted that at present, location codes can only be scanned through WeChat, Alipay and some local applets.