Address: http://blog.sina.com.cn/s/blog_722b43a60100q5ht.html
This tutorial is composed
Original, reprinted please indicate the source.
After reading the previous article, you should
The system has a preliminary concept. Before starting the flash, let's continue to learn some basic knowledge.
Android
There is only one system, but there are many mobile phone manufacturers. Even if Android is used
Systems, different brands, and different models of the same brand may also have different hardware or vendor reasons, resulting in no so-called general-purpose cracking or fixed-mode flash brush process, all operations are targeted.
This series of tutorials is called from scratch-desire DHD
Flash brush guide, of course, is based on HTC
Desire HD
The mobile phone is used as an example to describe that it is not applicable to other machines.
Other models and other brands use android
The system's mobile phone users are only a reference for learning related knowledge.
The phone numbers that appear in subsequent chapters, unless otherwise specified, refer to HTC Desire.
HD
. Other mobile phone users are not solely responsible for copying the operation.
Domestic goods are everywhere, and various versions of mobile phones make it difficult for common users to distinguish. As a Chinese, it cannot be said that this is a sorrow. They all say that the Chinese are savvy. That's not the case. All day long, people have to be afraid of being cheated, and all day round the drills and battles. After a long time, can people be refined?
For the above reason, the HTC Desire HD
(DHD)
For example, after getting a new phone, we should first call HTC.
Official phone number: 400-821-8998
, Submit your iemi for manual consultation.
String to know when your mobile phone is delivered and where it is sold. Save by JS
Fail.
Next, we need to know which version of the system is running on our mobile phone. This is very important for us. The subsequent operations should be based on this. different versions of the system, corresponding to different processing methods.
Follow me to learn about the machine:
Open your phone and enter settings --
About mobile phones --
Obtain the following information:
Android
Version --------------------------
Operating system version
2.2
Baseband
Version ------------------------- radio
Version
12.28b.60.140eu _ 268243.02.26 _ m
Kernel
Version ---------------------------
Kernel version
2.6.32
. 21-gf3f553d
Internal version number
1.32.832.6 cl278359
Release-keys
Software Version
1.32.832.6
Browser version
WebKit 3.1
The above is the content of my mobile phone before the flash brush (Hong Kong version). It may be different from yours. It doesn't matter. It's normal. You just need to know what they mean.
To learn more about the machine information, follow these steps:
Open your phone and enter settings --
Application --
Fast start, do not tick, then shut down, hold down the volume-
Press and hold the key at the same time. After the screen is lit, go to hboot
.
The following information is displayed at the top of the screen:
Ace PVT ship S-ON
HBOOT-0.85.0007
Mi crops-0438
RADIO-26.03.02.26_M
Emmc-boot
Oct 11 2010,12: 47: 02
Several pieces of information provided here are very important. We will explain them one by one.
First, let's look at the first line:
Ace
:
This is DHD.
Internal development code.
Pvt
(Or EVT
, DVS
, CVT
):
The version type of the mobile phone.
From R & D to marketing, a mobile phone may experience debugging and modification on multiple versions. The version type indicates the product of the machine.
EVT
: Engineering machine, model of the machine in the R & D stage.
DVS
: Development machine, the model of special development machine.
CVT
: The model of the service provider's machine.
Pvt
: The model of the production machine that is listed in the retail edition.
Ship
(Or Eng
):
Mobile phone hboot
(SPL
.
Ship
: Shippment
The abbreviation, the meaning of shipment, retail version of hboot
Version.
Eng
: Engineer
The abbreviation, the meaning of the project, the modified version of hboot
Version.
S-ON
(Or S-OFF
):
S
Representative
Security lock
Security lock. HTC
A security lock is set inside the mobile phone to control the read/write status of the system partition.
S-ON
: Security lock;
S-OFF
: Security lock.
Here we just want to give a brief description, and the subsequent chapters will be detailed.
Next, let's look at the second line:
HBOOT-0.85.0007
Hboot is displayed here.
Version, hboot
It is a very special part. If the cell phone is damaged, it will become brick, similar to upgrading the BIOS of the computer.
Incorrect BIOS
You can only return to the factory and use a special wiping tool to restore it.Therefore, the hboot
You must pay special attention to the operations. If not necessary, do not easily fl this partition.
Row 4:
RADIO-26.03.02.26_M
Radio is displayed here.
The version number. Similarly, Radio
The upgrade will follow the upgrade of the official system. As mentioned above, Radio
It is responsible for signal and hardware drivers. In theory, the higher the version, the better, but not the absolute one. It also depends on the situation, just like the driver on a computer, the latest is not necessarily the best.
The above describes how to view the details of the mobile phone. These materials are very useful. The flash later is closely related to these things. I hope you can understand them first and then go to the subsequent chapters.
Here we will introduce a small program that comes with the testing machine. On the dial-up keyboard, press "* #** #3424 #*#*
", Perform the test according to the preceding instructions.