Introduction to Android proper nouns

Firmware... The so-called firmware of the operating system is to fix the operating system in a fixed position (hardware) in the mobile phone. It is not changed at will and the active data is kept aside.
The purpose of this is to protect the inner system programs from being affected by file operations and improve stability.
But on the other hand, if you want to upgrade the system, it will inevitably involve reading, writing and updating the firmware.
Google's Android system is written into the firmware, and even if you want to view it, you need special software and permissions.

2. Flash the firmware... Install (or reinstall) the operating system
It is precisely because the firmware is fixed, when we want to update the system. You need to delete the original firmware files and copy the new files into them.
So there is such a thing as flashing firmware.
Just like the Windows installation system, you can install it directly by putting the installation disk in it.
After all, the A system is not yet one year old (counting from the beginning), and there is no software to directly install the system. (There will definitely be one in the future!)
So let's install it ourselves.

3. ROM (package)...the installation disk of the system
This thing is the packaging of system A. This is what we flash into the firmware when we flash the phone.
Of course, due to the open source nature of System A, we can freely change this package.
Involves high-end knowledge. Avoid this question.
Like the often mentioned RC XX, G2 Rom, and x. x. Things like x refer to the package version.
is changed into various packages.

4. Firmware version
Since Google is specifically developing this system, the official release will definitely be the benchmark for all G friends to upgrade their mobile phones.
The firmware version is the official basic system, and all package modifications will start from the official package.
So an official upgrade will inevitably affect the usage of the entire mobile phone system.
Just like everyone is using XP now, Microsoft released a patch package, so everyone upgraded.
The current firmware version of RC33 is 1.4. . (Some G friends pointed out that this version is 1.1... without studying it carefully)
But Cupcake and G2ROM are both firmware versions 1.5, which have been greatly updated.

5. ROOT
Root is the authority you have to use the system. It is the highest. With root authority, you can change the files of the internal system.
In order to prevent software from changing system files (viruses?), system A hides root permissions, which means that system files cannot be modified under normal circumstances.
but. . We need to flash the machine. So we need to obtain Root permission

6. JF self-made firmware
JF self-made firmware is a firmware modified by an expert. Its main feature is that it has a self-made recovery mode. You can flash your own package
We will use JF's firmware as the basis for flashing, and start endless flashing (sweat).

7. What is the Radio package
The driver of the wireless communication module? ROM is the system program Radio is responsible for network communication. ROM and Radio can be refreshed separately without affecting each other. If your phone has communication problems after refreshing the ROM, you can try refreshing RADIO.

8. The classification of ROMs is generally divided into two categories. One is the original ROM from the official mobile phone manufacturer, which is characterized by stability and has different functions according to the manufacturer's customization; the other is the native ROM compiled by development enthusiasts using the source code officially released by GOOLGE (such as the Anzhi netizen collaboration ROM compiled by Ah Xing, foreign CM series, etc.). The characteristic is that it is adjusted according to the specific needs of the user to make the ROM more in line with the usage habits of users in different regions, such as Ah Xing's Anzhi series ROM. It is specially made for Chinese users, while the CM series ROM is more suitable for foreign users.
In addition, there are some ROMs that are beautified or modified by enthusiastic netizens. They are generally based on native ROMs and are also very popular.

9. Choice of ROM
Different versions of ROM have different characteristics, such as stability, speed, and beauty. You can choose whatever you like. As the saying goes, everyone has their own preferences.
It should be noted that students should carefully check the precautions of this version of ROM before flashing the machine. In some cases, there may be incompatibility between different ROMs.

10. Types of flashing methods
1. Recovery mode, use "update.zip" file;
2. Enter the project mode and refresh the ".NBH" file;
3. Use the engineering mode of the development version to perform fastboot flashing.