HarmonyOS 4.2 released 75 Huawei, 6 Honor can be upgraded HarmonyOS 4.2 released 75 Huawei, 6 Honor can be upgraded HarmonyOS 4.2 released 75 Huawei, 6 Honor can be upgraded HarmonyOS 4.2 released 75 Huawei, 6 Honor can be upgraded HarmonyOS 4.2 released 75 Huawei, 6 Honor can be upgraded