Foreword
OTA (Over-the-Air Technology) OTA. It is the remote management technique of the SIM card data and applications to mobile communication (GSM or CDMA) air interface. Air interface WAP, GPRS, CDMA1X short message and techniques can be employed. Application OTA technology, making mobile communication can not only provide voice and data services, but also to provide new services to download. In this way, application and content providers can be exempted from the limitations of the platform, and constantly develop a more close to user needs personalized services, such as information on demand, interactive entertainment, location-based services and banking transactions. OTA-through technology, mobile phone users as long as the operation is simple, you can follow the personal preferences of the various services provided by the network menu using the mechanism OTA download to your phone, and you can also customize the service according to their specific wishes.
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Here they describe in their own way under the ota upgrade mobile platforms.
In short, we can see the phone's upgrade with their own hands is the OTA upgrade.
OTA upgrade mobile phones can be divided into the following categories:
local Update: Local upgrade manually upgrade can be divided into local and local automatic upgrade
Online Upgrade: (will also be upgraded by downloading data interaction with the server upgrade file to the server locally upgrade).
FIG;
Details Local upgrade
1. Upgrade local manual.
How to enter the local manual upgrade mode?
As shown in FIG enters the recovery mode:
after preparing the upgrade package, here the option to move through the volume button sdcard upgrade, the power button to confirm the upgrade.
2. Local automatic upgrade
Here illustrate the difference between local and manually upgrade upgraded automatically under.
The fundamental difference is to manually upgrade automatically upgrades compared to more need to manually enter recovery mode (both are required to enter the recovery), and needs to be upgraded after entering recovery mode manually select the upgrade file.
It says here is the use of local automatic upgrade Android api automatically provided by the system and automatically enters the recovery mode to find upgrade installation package.
Local automatically upgrade routines and achieve See: Android OTA local auto-upgrade
P.S
Online Upgrade: online upgrades and because of the need to interact with the server, do not do too much about here, is always a good idea is to talk about making OTA upgrade package into the specified server, and network equipment through the OTA upgrade to download in the background or foreground equipment locally. Then during the upgrade (this upgrade and local automatic upgrade no big difference between a)