Hi Xiaomi Fans!
In this article I want to show you the disassembly and assembly of the smartphone Xiaomi Redmi Note 4G Dual Sim. The smartphone is very old, one of the first Redmi Note series.
A few photos and descriptions of what you can see:
All device parts)
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Power controller Qualcomm PM8916 -The PM8916 device integrates all wireless handset power management, general housekeeping, and user interface support functions into a single mixed-signal IC. Its versatile design is suitable for multimode, multiband phones, and other wireless products such as data cards and PDAs.
High-level PM8916 functional block diagramSince the PM8916 device includes many diverse functions, its operation can be understood better by studying the major functional blocks individually. Therefore, the PM8916 document set is organized by the device functionality as follows:
PM8916 device features
Wi-Fi, Bluetooth - WiFi 802.11b/g/n, Bluetooth 4.0, HSPA+.
Hynix Chip - RAM memory 2Gb.
Qualcomm Snapdragon 400 MSM8928 - high-performance SoC for smartphones, the maximum frequency of which reaches 1200 MHz. The chip has four ARM Cortex-A7 processor cores, making it much more efficient for multitasking than dual-core solutions. It is based on the architecture of Harvard, the second-level cache is 1 MB for each core. Made according to the standards 28-nm process technology. The chip includes an integrated video card Qualcomm Adreno 305. It is ideally optimized for video acceleration, image creation, works with 1080p video. There is support for OpenCL and OpenGL ES 3.0, a 13.5 megapixel video camera, Bluetooth 4.0 and LPDDR2 or LPDDR3 memory.
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Touch Screen Controller MXT336S-A 336. Provides the ultimate interface for automotive touchscreens withsizes up to 7”.
Volume and Power Button
Thanks to All SMOD and MOD!
Thanks to Administrator Elaine2046!