Disassembly of Meizu m8e mobile power supply

Release date：2016-06-30   Views：2030

Disassembly of Meizu m8e mobile power supply

2016-06-29 classification: disassembly / mobile power reading (1356) review (0)

In recent years, the competition in the mobile phone market has gradually entered a white hot state, with sales gradually flowing from big names such as Samsung and apple to the second and third tier brands, including Meizu. In order to seize this opportunity, Meizu has launched new products almost every month. The high-end Pro mid-end MX also has a cost-effective sub brand Meilan. As the mobile power supply for mobile phone's backup service life, Meizu has to grasp both hands and have enough milk. In the summer of 2015, Meizu's fast charging mobile power supply, which was crowdfunding with mx5, achieved the target progress of 6220%, and raised funds as high as 62.2 million. Only three months later, that is, in October of the same year, Meizu revised the circuit, improved the fast charging compatibility, rewritten the underlying protocol, and re released the M10 fast charging mobile power supply after rewiring. At the same time, there was also the M8 mobile power supply without the fast charging version.

Today, he came again.

The newly launched Meizu m8e mobile power supply also maintains the same design style with high appearance value, but the change is only after sequence + E. what's the difference between this e and this e? Charging head network for you to dismantle the explanation.

Meizu m8e mobile power box

Meizu m8e outer package uses white and Meizu blue as the main tone. The m8e below shows that this is a new product, which is different from the old M8.

In terms of capacity, the m8e keeps the same capacity as the old model M8, with the same capacity of 10000mah.

At the bottom of the package, there is also a simple style, with only simple information and QR code scanning.

Open the package and take out the inner box. The mobile power supply is wrapped by a thick layer of transparent soft rubber, which plays an anti-wear role.

List of unpacked items: Meizu m8e mobile power supply x1, microusb data cable x1, manual x1.

The overall appearance of Meizu m8e is consistent with the old model M8. The same mold is used and the same gray and white color is used. If you don't look carefully, you can hardly distinguish the old and the new.

Turning over and looking at the other side, we can finally see the biggest difference. The new model m8e is marked on the white shell, and the capacity of 10000mah is also indicated on the gray head.

All the sockets are placed on the gray head. The output jack of the conventional type-A large USB female base is sprayed with code out, four white power indicator lights in the middle, and the conventional micro USB input jack with code in on the far right. It can be seen that the outermost edges of both sides are tightened with two plum blossom hexagon screws. Compared with the conventional cross screw, it has the meaning of eye-catching and has a certain anti disassembly effect.

Disassembly of Meizu m8e mobile power supply

Since it is known that the assembly structure is screwed down, it can be directly unscrewed with the corresponding T4 plum blossom screwdriver head. The disassembly of the screw assembly is simpler than that of ultrasonic welding assembly, and it can completely achieve nondestructive disassembly and restoration.

After unscrewing two T4 screws, the gray head can be separated.

Insert a sharp tool such as a blade into the name plate at the bottom of the mobile power supply to pry up the cover plate of the name plate.

Name plate information, capacity 10000mah, energy 37wh, input 5v2a (maximum), output 5v2a (maximum), model m8e.

Two cross screws can be seen after removing the cover plate of the name plate.

Now you can screw out the two screws on the bottom and one on the top, that is, three cross screws in total.

After three cross screws are removed, the white casing can be pulled out by pulling.

There is no screw lock and no casing package. The final frame can be opened and pulled. It is fastened with several shallow bayonets.

At the left of the disassembled parts are the gray head cover, white bottom cover and name plate, and then the inner box composed of upper and lower covers.

PCB front view.

PCB bottom at a glance.

In terms of battery pack, Meizu m8e uses two Li Shen polymer batteries with an average voltage of 3.7V as the battery pack, which is different from the ATL on the old model M8.

Near the output interface, there is no identification chip added, and there is no fixed resistance group? We'll talk about it later.

Battery pack protection board, function similar to dw01.

Micro USB input port 8205a MOS, over-current protection.

PCB front output details, also did not see the identification IC.

Two 8025a, together with the dw01 on the back, form the battery pack protection version.

The old model M8 that we disassembled previously used MPs mp2636 solution, but this time Meizu m8e used another solution. It is ip5209 from yingjixin injoinic, which is a highly integrated SOC packaged by qfn24. It has 3A input and 2.4a output capability, and the chip also has its own identification function. The official nominal discharge efficiency is 91%. This website also launched a few issues of ip5209 demo trial, you can see the relevant articles.

The four white LED lights are separated by shading sponge to avoid cross light and misjudgment.

Microusb input part, lower right 2 is the temperature probe wire.

The probe is directly attached to the two batteries, which makes the temperature detection more accurate.

Summary:

This is the disassembly part. The m8e is as meticulous as the past, with high precision and high appearance value. Compared with the old version of M8, the scheme is changed from MPs mp2636 to British chipset ip5209, and the battery is replaced from ATL to Lishen. In terms of performance, please continue to pay attention to our Meizu m8e performance section. Thank you.

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