In 2020–2021, Huawei transitioned its theme infrastructure from zh.ui.vmall.com to a new domain: theme.huawei.com (also through the app). Reasons include:
While desktop tools like Hisuite are common, eRecovery downloads the firmware directly from Huawei's servers (similar to the logic in the emotiondownload.php link). http zh.ui.vmall.com emotiondownload.php mod restore huawei
your device has failed verification and may not work properly 14 Sept 2022 — or failed update)
This occurs on rooted devices when the theme engine cannot write to protected directories. http zh.ui.vmall.com emotiondownload.php mod restore huawei
When a Huawei device fails to boot normally (bootloop, corrupted system, or failed update), the built-in eRecovery mode attempts to download a fresh firmware package. The phone then displays a message that it is connecting to http://zh.ui.vmall.com/emotiondownload.php?mod=restore to fetch the official ROM.