Pressing following:
4 for wireframe
5 for shaded
6 shaded with textures
and finally 7 for 6 with lighting

If any of these do not change or 7 shows a black screen instead of what you expect and 4, 5 and 6 are all OK. Then there are issues with your lighting set up, and if thats the case then I would remove all objects from all render layers and try again. If there is still an issue then:

1) Export the object or any other objects you want. One would be good enough (with all materials and textures)
2) create a new project
3) import exported model and copy over your sourceimages to the new project
4) create a new light and see if that lights anything up by pressing 7
The Primary step is to get the latest APK record from WhatsApp:
What do the double blue ticks in a WhatsApp
Download the latest (interpretation 2.11.444) WhatsApp apk from the power webpage.
On your Android telephone, go to Settings > Security > Check Unknown sources, to introduce applications from outside Google Play. Keep in mind that, at whatever point you introducing the applications, precise way to the settings relying upon your gadget producer and Android form.
Open the apk on your Android phone. This will introduce the latest form of the application on your device. (Also see: How to Backup WhatsApp Messages)
Once the application is introduced, here's the manner by which to incapacitate read receipts:
Open WhatsApp and tap three vertical Dots image on the upper right.
Presently go to Settings > Account > Privacy.
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