Upgrade Android 4.0 from G7

I am not a person who will take the initiative to chase things and run things. I have been using Android 2.2 On G7, but I don't know what conflicts are between installed software, after a long period of time, what's wrong with the system? after about a year, the system often crashes and needs to be restarted by pulling the battery. Even so, I still use it like this. After all, it still works. It takes time to upgrade a new system, which is also risky.

Until today, when I drum up opencv for Android, I wantProgramWhen installed on my mobile phone, the system prompts insufficient space (in fact, the APK package is 6 ~ 7 MB). This is another problem that often bothers me. Due to the serious shortage of available system space, I have to carefully manage the software installation, you have to uninstall some necessary programs frequently to try/install new programs (terrible manual version of the "bumps ").

Based on the above two problems, coupled with the extremely convenient flash brush Wizard provided by, the upgrade was decided. I think this can solve my problem.

Crash problem: the system problem, from 2.2 to 4.0, should be able to solve this problem.

Insufficient space: I studied the storage structure of the system:

 

My G7 storage should be 512 M, 576m and 16g. The storage in the figure above should be:

• ROM: 512 M-system and program installation, persistent

  
  

  • Internal Storage-install User Programs
  • System storage-install the Android system and system programs
• Ram: 576 M-memory required for running, not persistent
  • Memory-memory used by the program running
  • System cache-physical memory specially allocated to the system for caching, mainly for the speed and stability of the system. (Guess)
• SD: 16 GB
  • A2sd-dynamically divided space on the SD card, used to install the user program (which saves internal storage). Note that the size of the space will change.
  • Other data-the data on your SD card

Therefore, the solution to this problem is:

1. The lite version of the system will not contain too many messy programs. The flash brush Genie have made the whole process very easy to use.
2. Install some programs that can be installed on the SD card to the SD card-in fact, this step is also automated by using the mobile assistant.
3. Convert programs that cannot be installed on the SD card into system programs (the system program is not in the same partition as the user program. In fact, there is quite a lot of space in my system partition ), this conversion can be done using a software called titanium backup.

After the demonstration is completed, download Rom-one-click flash in the flash brush genie. In about 20 minutes, a brand-new 4.0 system will be ready. After a click, I found two problems:

1. There is no built-in ringtone, and you cannot select the ringtone on the SD card-two solutions, one is to use the ringtone management of the optimization master; the other is to copy the ringtone to the ringtones directory in the root directory of the SD card, the phone will automatically read this folder and list the ringtones in it...
2. Gmail cannot be opened. This is a very serious problem, because my contacts and my main mailbox are all like this. Google once found that Google's basic framework needs to be installed, as this blog says, but there are still some Google program crash problems. After research, we found that we need to convert these Google programs into system programs, this requires the installation of titanium backup program.

Okay, solve the problem. Let's talk about the final feeling:

1. Careful optimization of the space is much better than before
2. If the system crashes and the battery needs to be switched out and restarted, the-Shame on Android may occur. After so many versions of updates, it is still such a problem. It is very difficult for an app to crash, and people are confident that they will not give you the opportunity to unplug the battery.
3. The new interface and operation style are indeed greatly improved, but such instability makes these dispensable functions instantly eclipsed-my next mobile phone, I may have to consider whether to continue using Android.