As promised OUKITEL U7 Plus Update to Android 7.0 Nougat is already released and is available via FOTA.

Since it’s cross-OS update and there are too many things changed from Android 6.0 to Android 7.0 you will need to follow 2 steps.
Step 1, tap “Wireless update” app, check for updates to update to the last Android 6.0 version OUKITEL_U7_Plus_V20.0_20161220, download and install it.
Step 2, after installed V20.0 version, tap “Wireless update” again to check for update, then you will find a new version OUKITEL_U7_Plus_V0.9_20170112, this is the Android 7.0 software.
Before downloading the OUKITEL_U7_Plus_V0.9_20170112, please make sure 2 things.
First, insert at least a 16GB TF card, otherwise it can’t update successfully. After inserting a 16GB or 32GB or 64GB TF card, set SD card as”Use as portable storage”
Second, make sure the battery capacity is above 30%, otherwise it can’t start install.
Since the new Android nougat software file is too big, it needs extra SD card and more time to update successfully. After you update to Android 7.0, you can remove the TF card. It takes more than 1 hour to install succcessfully, so please be patient.
Do you think it’s complicated for updating to Android 7.0 by wireless update? Then there is another simple method. No need to update to V20.0, then V0.9, no neex extra TF card, no need long time.
Backup your data first, and then refresh by computer. No matter what’s your current software version, just connect to computer to flash to Android 7.0 directly.
Download the following files to your computer, there is process to indicates you the steps, tool, and software.
Android 7.0 Software(OUKITEL_U7_Plus_V0.9_20170112):!00BG2QpB!PMTI7cHGU6gUoDHd8kxXdGa1yKZ6YUpBXc3z-7yIFds

This post is also available in: Portuguese (Portugal)