After upgrading the HarmonyOS system, a large number of advertisements popped up, and the online closing method was used, but it could not be closed. What should I do?

Restrict application background operation: mobile phone system settings-search application startup management-turn on all automatic management. (You can restart the mobile phone after operation), and close the permissions of the floating window: system settings of the mobile phone-search permission management-floating window, and close the applications inside one by one. (This is only available for systems above EMUI 10 and HarmonyOS OS, which is used to limit the application background pop-up).

Huawei HarmonyOS System? (Huawei HarmonyOS System) is the operating system HarmonyOS OS officially released by Huawei at the Huawei Developers Conference held in Dongguan on August 9, 20 19.

Huawei HarmonyOS System is a brand-new full-scene distributed operating system, which creates a super virtual terminal world, organically connects people, devices and scenes, and realizes rapid discovery, quick connection, hardware mutual assistance and resource sharing of various intelligent terminals that consumers contact in full-scene life, and provides scene experience with appropriate devices. ?

On September 10, 2020, Huawei's HarmonyOS system was upgraded to HarmonyOS system 2.0. On April 22nd, 20021year, the online experience website of Huawei HarmonyOS HarmonyOS system application development was launched. On may 18, Huawei announced that Huawei HiLink and HarmonyOS systems will be unified into HarmonyOS system zhilian.

On the evening of June 2nd, 20021,Huawei officially released HarmonyOS System 2 and a number of new products equipped with HarmonyOS System 2. On July 29th, Huawei Sound X speaker was released, which is the first smart speaker equipped with HarmonyOS System 2.