Hammer nut U 1 Opening the back cover is very simple. Just button the back cover directly from the bottom, and then you can open the back cover, as shown in the figure.
Schematic diagram of nut mobile phone back cover opening
It is worth mentioning that the back cover of the nut mobile phone is made of hard plastic and has no elasticity. Be careful not to use violence when opening the back cover.
Hammer nut U 1 mobile phone is similar to one plus two. Changing the back cover of different colors will automatically switch the corresponding theme. According to Lao Luo, this innovation was patented earlier than one plus two, so it is not plagiarism.
The small chip on the back cover is used to identify the color of the back cover and automatically switch the corresponding theme.
When you open the back cover of the nut phone, you can see that there are double SIM card slots in it, and NFC is also designed on the battery, so the battery of the nut phone U 1 cannot be disassembled.
In other words, the new nut phone needs to open the back cover when installing the SIM card or replacing the back cover. You can put on a new back cover after opening it. The back cover is removed, and the installation is simpler. It adopts buckle design and can be closed properly.