Compared to galaxy note 3, note 4 has undergone several internal design adjustments, although it has not changed much in appearance. After dismantling, it was discovered that galaxy note 4 had regressed in terms of repair, as the main plate had been redesigned and the front plate adhesive added. Cnet compares and summarizes the following aspects for further information by interested netizens。

First of all, let's review the parameters of note 4. As a tablet phone (phablet), the machine was equipped with 5. 7 inches @2560x1440 resolution screen (quad hd amoled) with a pixel density of 515 ppi。
In addition, it carried a 2. 7 ghz high-tomperon 805 processor. American) or exynos 5433 viii nuclear processor (international), 1. 9ghz, 3gb ram + 32gb rom, back-up camera for 16 million pixels, batteries for 32220 mah and the provision of marked s pen pen。
Dismantling observation:
With the upgrading of hardware, the internal layout of note 4 was adjusted by samsung. However, this has also made the dismantling and reassembly of mobile phones somewhat difficult。

(1) re-engineered sim card and microsd card slot。
In galaxy note 3, sim cards are stacked with microsd slots over the battery. In note 4, two slots have been installed on the left side of the battery. This improvement is more positive in this regard。
(2) re-engineered covers。
When you remove the back of your cell phone, you can see the cell phone's storage slots and batteries. But you have to remove a separate interior until you have access to the main panel and the internal parts。
Note 4 is not much different from note 3 in this respect, but unfortunately the middle box of note 4 is also part of the inner cap, not part of it like note 3。

(3) there are screws everywhere。
Note 3 has a dozen screws on the inside and frame, all of which, fortunately, can be unloaded with a #000 screwdriver and only two lengths。
(4) headphone plugs with changed location。
Note 3 3. 5 mm ear plugs were placed in the internal frame, but there were also components such as main circuit boards and cameras. In note 4, ear plugs and external loudspeakers were plugged into the negeri。

(5) it is very difficult to untangle the front plate/shower。
The samsung used adhesives on the screen/panel in note 4 and in the inner frame, and a thin sheet was attached behind the display screen. If you want to keep it going, it'll almost inevitably hurt it。
(6) re-engineered main board。
Unlike note 3, which is mostly rectangular, most of which is concentrated on the top, the note 4 l-shaped main plate moves a large number of metaware to the side and several lined lines are connected (it would be painful to remove them again)。
Cracking open samsung galaxy note 4
(7) summary: better hardware, worse repairability。
From a hardware design perspective, samsung took a step forward on galaxy note 4. It was given better performance, faster processors, better cameras and a greatly improved s-pen。
Unfortunately, samsung engineers have also made the mobile phone more difficult to dismantle and repair。




