Please help I bought a techno K7 and everything was working fine until last week I noticed the interface of my has chanced and I can't pull down notification bar to view my notifications. I also can't find guest profile on my phone

[center]Solution 1. Change your device User.[/center]

1- First, reboot your device in safe mode. To do so long press power key and after when you see the option of Power Off long press the Power Off option on the screen. A dialogue box will appear to click Ok.

2- Once in Safe Mode, go to Android Settings.

3- Here look for the option called Users and switch to Guest Account.

4- Now again switch back to Owner account.

5- Reboot your device and come back to normal mode.

[center]Solution 2. Set a Screen Lock[/center]
Simply set a screen lock preferably pattern lock.
Settings > Security > Screen lock > Pattern.

Once the screen lock is successfully set, empty your device memory, reboot the device and unlock the pattern. Your device will be back to normal.

[center]Solution 3[/center]

Factory Data Reset

businesstation:
Please help I bought a techno K7 and everything was working fine until last week I noticed the interface of my has chanced and I can't pull down notification bar to view my notifications. I also can't find guest profile on my phone

I'll suggest you back up and factory reset your device.