Which files or folders can be deleted under the root directory of the mobile phone and which cannot be deleted?

1, \system\app is mainly used to store commonly downloaded applications. You can see that all files end in APK format. The programs in this folder are the default components of the system, and the software installed by yourself will not appear here, but in the \data\ folder.

2. The files in this directory \system\bin are all local programs of the system. As can be seen from the name of the bin folder, they are binary programs, mainly including the components (commands) that come with the Linux system. This directory is mainly about system settings.

3. According to the folder name, \system\etc stores all system configuration files, such as APN access point settings and other core configurations.

4. In the font folder of \system\fonts, except standard fonts, bold fonts and italics, the largest file size may be Chinese fonts or some unicode fonts. It is obvious from T-Mobile G 1 that simplified Chinese is normal, and the file size of DroidSansFallback.ttf is also normal.

5. The \ system \ framework is mainly some core files, and it can be seen from the suffix jar that it is a \ system \ framework.

6. The \ system \ liblib directory mainly contains the underlying system libraries and some so files, such as platform runtime libraries.

7. The ringtone music folder of \ system \ media \ system \ media \ audio contains some system prompt event sounds in addition to regular ringtones.

8. The default music test file of \ system \ sounds has only one user folder of test.mid[hide]\system\usr, including sharing, keyboard layout, time zone file, etc.

\system\app\AlarmClock.apk alarm clock

\ system \ app \ alarmclock.odex \ system \ app \ browser.apk browser.

\ system \ app \ browser.odex \ system \ app \ bugport.apkbug report

\ system \ app \ bugport . odex \ system \ app \ calculator . apk calculator

\ system \ app \ calculator.odex \ system \ app \ calendar.apk calendar

\ system \ app \ calendar.odex \ system \ app \ calendarprovider.apk calendar.

\ system \ app \ calendar provider . odex \ system \ app \ camera . apk camera

\ system \ app \ camera.odex \ system \ app \ com.amazon.mp3.apk Amazon Music

\system\app\Contacts.apk contact person

\ system \ app \ contacts.odex \ system \ app \ downloadprovider.apk is available for download.

\ system \ app \ download provider . odex \ system \ app \ mms . apk SMS，MMS。

\ system \ app \ mms.odex \ system \ app \ music.apk music player

\ system \ app \ music.odex \ system \ app \ myfaves.apkt-mobile my aves program

\ system \ app \ my aves . odex \ system \ app \ package installer . apk apk installer。

\ system \ app \ packageinstaller.odex \ system \ app \ phone.apk telephone dialer

\ system \ app \ phone.odex \ system \ app \ settings.apk system settings

\ system \ app \ settings.odex \ system \ app \ settingsprovider.apk settings have been provided.

\ system \ app \ settingsprovider.odex \ system \ app \ setupwizard.apk installation wizard

\ system \ app \ setupwizard.odex \ system \ app \ soundrecorder.apk recording tool

\ system \ app \ soundrecorder.odex \ system \ app \ street.apk street view map.

\ system \ app \ street.odex \ system \ app \ sync.apk synchronizer

\ system \ app \ sync.odex \ system \ app \ talk.apk voice program

\ system \ app \ talk.odex \ system \ app \ telephonyprovider.apk provided by telephone.

\ system \ app \ telephony provider . odex \ system \ app \ updater . apk updater。

\ system \ app \ updater.odex \ system \ app \ vending.apk vendor information.

\system\app\DrmProvider.apk DRM digital rights settings

\ system \ app \ drmprovider.odex \ system \ app \ email.apk email client

\ system \ app \ email.odex \ system \ app \ fieldtest.apk test program

Provided by \ system \ app \ fieldtest.odex \ system \ app \ gdafeeprovider.apkgoogledata.

\ system \ app \ gdatafeedisprovider.odex \ system \ app \ Gmail.apk Gmail email

\system\fonts here is mainly a bold English font file, Chinese font DroidSansFallback.ttf and English font DroidSans-Bold.ttf, which is used to play test files.