In whatsapp you may be a lot of groups that you follow every day, from the office group, family, friends, community, where the group sends photos, videos, documents, location, etc., this causes the performance of your cell phone can go down because the files are stored piling up in your phone’s memory.
Make sure your whatsapp has been updated in the appstore / using the latest version of whatsapp, if not yet please update it first, if it has been updated but the notification still does not appear, please follow the steps below.
The answer is that we need tools / technology that can analyze when we are sleeping, technology like this is already often found, especially on smartband and smartwatch, the brand is also diverse, my experience is only using 2 brands namely Samsung and xiaomi. Both of the above smartband can analyze the quality and duration of our sleep every day.
it’s just that Samsung cooperates with Docomo which is one of the main operators in Japan as we are in Indonesia (Telkomsel, Indosat and XL) (1), to do the naming bundling and some modification of the default software from the company.
In severe cases the error is caused by damage to IC NAND, but you still try to using software to fix the eror.
Upon activation, the iPhone / iPad will match the mac address of WiFi, Bluetooth and SN IC NAND (flash memory) to the Apple server, if the three do not match the Apple database then the activation process cannot be continued.