Nebo typically uses the system's download manager to download language packs, which functions well in most cases.
However, Xiaomi devices (such as phones and tablets) running Chinese system firmware come with a default-enabled P2P download acceleration feature in the download manager. This feature can hinder connections to overseas servers, despite having a global VPN enabled.
To address this issue, Xiaomi device users in China should access the download manager settings and disable the P2P download acceleration (Xunlei download engine) to ensure a successful download of the Nebo language pack.