Since the arrival of the Huawei Ascend P7, many users began to notice that there was a bug with WhatsApp notifications, causing them not to arrive after suspending the terminal screen, being necessary to enter the application to receive them all at once.
While it seemed that everything would be in a specific model, the error has been reproduced in other models, such as the Huawei P8 Lite or Huawei P9.
Although the company is limited to saying that it is the application's fault and not the phone's, everything seems to be due to the customization layer, so you can try the following steps to solve the problem:
- Access Phone Manager
- Enter Optimize / Optimize the system and eliminate what you request
- Access Notification Center / WhatsApp (or application that fails) and mark all possible options
- Activate the Notification light function in Settings / Device / Display
- Activate Use WiFi in suspension always in Settings / WiFi / Menu / Advanced settings
- Always activate data through networks in Settings / Wireless networks and networks / More / Mobile network
- Activate the applications to work with the screen off in Settings / Advanced settings / Battery manager / Protected applications
If still the problem persists, we recommend that you contact Huawei so that they are participants in noticing the problem, as well as with your telephone company.