Generally speaking, we refer to the brush machine is the brush firmware, but in addition to ROM firmware, sometimes need to brush into the base belt and the bottom of the bag, then Android phone brush Machine Bottom packet belt is what? Do you need to brush these things when you brush the machine?
Let’s start by saying something theoretical. Bottom package is generally the base of the brush machine, this argument is Moto cited, before Moto mobile phone because there is a bootloader lock, resulting in the same as other mobile phone brush system, so users will often use the way to brush into the bottom of the bag, Then use the card brush to brush the way into the ROM.
From the definition, the base package is equivalent to a pure version or kernel version of the System package, is the bottom of things, the extension of SBF. From the perspective of the channel, the bottom pack is usually released by the official, and then is usually a number of ROM optimization of the great god download to use. There are not too many versions to choose from, and often not too frequently.
And the majority of the players make the bottom pack enhancement package, usually behaves as an update. zip file, which can be regarded as a kind of upgrade package. The upgrade package is an extension and enhancement of the base package, including a range of assistive tools and services that have not been previously available in Chinese to enable Chinese-language display through the upgrade pack, and now the enhancements are generally designed to increase the number of third-party recovery.
About baseband, the official explanation is: baseband (baseband) is a circuit in the mobile phone, responsible for completing the mobile network of wireless signal demodulation, interference, expansion and decoding work, and the final decoding completed digital signal to the upper processing system for processing.
In our mobile phone is usually composed of two parts of the circuit, part of the high-level processing, the equivalent of the computer we use, and the other part is the base belt, which is the equivalent of the modem we use, the mobile phone to support what kind of network (GSM, CDMA, WCDMA, TD-SCDMA, etc.) is determined by it, like the ADSL modem and the common narrow-band modem difference.
Can be seen, the baseband is in fact a mobile phone in charge of a variety of mobile phone signal processing circuit, phone calls, Internet, text messages and so on, are through the upper processing system issued instructions (usually standard at instructions) to the baseband part, and by the baseband part of the processing execution, After the baseband section completes processing, it creates a logical channel between the mobile phone and the wireless network, and our voice, SMS, or Internet packets are routed through this logical channel.
Actually, the baseband is the most complex part, but as long as it is understood as a radio frequency receiver and then accompanied by a decoding function. And we brush machine encountered in the brush baseband, in fact, only in the case of hardware without restrictions through the fine tuning of the code to change the baseband RF signal and so on. But when hardware is required, this approach is unreliable.
In fact, the rom we often refer to is a meaning, if you want to subdivide the difference between the firmware and ROM, generally speaking, ROM refers to the unofficial private mobile phone operating system upgrade package, and the firmware is often the official release of the mobile phone OS upgrade package. Unlike the base package, the firmware is also an upgrade package for the base package, but this upgrade package is primarily for system updates.
Now we often refer to the mobile phone brush machine, in essence, is the brush firmware/rom, firmware/rom is like the computer installed system when the necessary installation disk, brush machine is the firmware/rom brush into the mobile phone read-only memory, to update the mobile phone system. The effect is equivalent to the computer reload operating system, the difference is that the mobile phone theoretically through the upgrade package to achieve.
Let’s say, for example, Miui V5 based on Android 4.4, then the bottom of the brush bag is Android 4.4, but his firmware is MIUI V5, which is probably the meaning.