Supply 4G? Unicom version of Xiaomi 3 real machine dismantling

I was released for 117 days of Unicom version of Xiaomi mobile phone 3 finally launched on the last day of last year. It is equipped with a 5-inch 1080p touch screen, equipped with Qualcomm Snapdragon 800 MSM8274AB processor, built-in 2GB memory and 16 The body storage space provides a 2 megapixel front camera and a 13 megapixel rear camera that runs the Android 4.3 MIUI V5 operating system, the battery capacity is 3050mAh, the price is in the same price of 1999. Unicom version of Xiaomi 3 has encountered the wind wave of replacing the camera and the processor after the listing, some people say that the millet 3 that has changed the processor cannot support 4G network, and some people say that Xiaomi 3 is used by the last generation of back-illuminated camera. Not a pile camera that promotes, is these statements correct? Let's take a look through dismantling. Since millet 3 is a non-removable rear shell design, it will be lost in the back cover. Internal design, Unicom and mobile version are substantially the same, and the outer casing is covered with graphite heat exchanger. Signal antenna and NFC chip 3050mAh battery, which belongs to the middle of 5 inch levels. Signal antennas, speakers, microphones, and Micro USB interfaces that support OTG functions are located at the bottom. From the number, it is produced in December 2013. MXT540S touch chip, like moving, you can achieve super-sensitive touch. Vibrator Two cameras from Sony are indeed a stack. Motherboard Samsung 2GB running memory and MSM8274AB processor package together The WTR1625 RF module is a RF module eating all Netcom, but unfortunately, the baseband does not have to eat all Netcom. Qualcomm PM8941 power management module OM8841 power management chip The WCD9320 audio decoding chip, and the exact same in Note 3 and G2. Reduce Back surface of the motherboard 16GB flash chip from SanDisk AVAGO ACPM-7600 front-end power amplifier Qualcomm QFE1101 chip, supports high-pass envelope tracking technology, effectively reduces power consumption under 4G network, but unfortunate Unicom version of Mi 3 does not support 4G. Double LED flash and noise reduction microphone Qualcomm WCN3680 802.11AC and Bluetooth 4.0 module, next to SKY85702-11 with its 5GHz Wi-Fi band. Overthur's 256111 chip is an NFC embedded security element. Bo Tong 20793M NFC control chip, and the security element on the upper side controls NFC near field communication module. From demolition, Unicom Millet 3 uses a lot of components that support 4G networks, but unfortunately, the processor's built-in baseband chip does not support 4G, so it and 4G network are not dead.

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