Not sure if it helps, but still... I wanted to downgrade from EMUI 12 to 11. HiSuite said that I have the latest version, there are no updates. And I pressed Switch to other version. Then it began the download and displayed error No connection. I use ESET NOD and it has its firewall. First I changed DNS IP in properties of network connection. Didn't help, dut the button Switch version in HiSuite disappeared. I also added HiSuite as a rule to NOD firewall to always allow its connections. And only when i returned automatic receiving of DNS IP in Windows connection properties, it finally began downloading EMUI 11 ROM
