For a complete tutorial on iphone4 usage skills, detailed parameter list,

1, there are two holes on both sides of the data line port under the iPhone 4, one is a speaker and the other is a microphone. People who think that a speaker is silent can rest assured. I thought one of the speakers was broken before, so I laughed.

2. The photos synchronized on the mobile phone cannot be deleted. You can only delete it by canceling synchronization or deleting the content in the photo with ifunbox.

3. Pictures set as contact photos will remain in the contact photos even if they are deleted on the mobile phone.

Stick to your face or keep a clear distance when you make a phone call, otherwise you may accidentally encounter silence or hang up. I've been sticking my ear to the receiver and I haven't mishandled it again.

5. The menu interface and the game interface control two sets of volume according to the volume increase or decrease. The menu is the ringtone volume, and the game is the game volume, so don't worry about mutual interference.

If you haven't torn off the back film by now, you will find that you can hardly see anything when the flash is turned on.

7. Multi-task switching is very good if all software supports it. Recently, more and more software updates support ios 4.0 testing. Those who complain that they have to log in again after quitting qq just need to wait for qq update.

8, open the Japanese input method to draw characters, you can add small pictures in the folder name column, which is convenient to distinguish and classify.

9. An itunes account can sync downloaded games to five different iPhone. Like this, psn stores can cancel payment information in account management for fear of credit card information leakage.

10, the game downloaded by itunes account or the game you downloaded for free in a limited time before, as long as you download it, it will be free no matter whether the new version is updated or charged again in the future, just download it directly and synchronize it.

1 1, an iPhone is used on several different computers. You can rest assured that the synchronized games will not be deleted, and the synchronization on itunes is manual. Then, if there is a program in your mobile phone that is not in your computer, you will be prompted to delete it or copy it to your computer in the form of ipa.

12 but music and video can't do this. Once synchronized on another computer, the entire media library will be changed. Ifunbox can be used to solve this problem. Copy all the audio and video in the mobile phone to the computer, add them to the database again, and then synchronize them with the new things you want to add, so that only new things can be synchronized, and all files can be deleted after synchronization, leaving only an empty shell list in itunes, so that you can add new media files to the database and synchronize them.

13, ifunbox has a storage option. You can copy files into this space and use it as a flash drive to store data.

14, the picture has not only the picture itself, but also thumbnails. If you delete it with ifunbox, you may see black thumbnails or black pictures after opening it. Browse the background picture and close it, then open it again. The black screen is caused by a program that still resides in memory.

15, the apple logo on the back can't be mended if the leaves on it are mended to the missing piece. At first, I thought I could fix a whole ass.

16, double-click the home button to bring up the taskbar, and you can define the function of double-clicking the home button.

17, when different computers synchronize applications, although the program will not be lost, the location will be disrupted, and those that have been put into the folder will come out again. Therefore, it is recommended to take the computer synchronization application or backup media library with you. ...

18. When using some sim cards, some options in the settings will disappear. For example, if I use a sim of 3, the option of turning on 3G and the option of cellular data network will disappear in the network settings. I guess the default is to turn on 3G, set cellular data automatically, and then I won't let you change it. After changing the Vodafone sim card, these two options came out again.

19, photos and videos taken by iPhone 4 can be directly copied to the computer. The video is about 80M per minute, which is very clear, but it is not anti-shake, and I feel a little dizzy after watching it for a long time.

20. You can use epubbuilder to make e-books in epub format. When I first watched it with ibook, there was a little progress below. Wait patiently until you finish reading, and the operation such as turning pages will be quick. If it is a book of about 5M, it may take dozens of seconds, and the average book will take more than ten seconds, only the first time is slow. When you make your own epub, more chapters will improve your reading speed.

2 1, it's good to customize the ringtone and synchronize the m4r file directly. When itunes9.2 was first installed, there were no ringtones, books and other options in the left category, which were only available after synchronization. The SMS alert tone can only be changed after jailbreaking. The six caf files starting with sms received in /System/Library/Audio/UISounds can be renamed from aiff or wav files, and then replaced and modified with the same names.

22. Log in to the hotmail mailbox with the email function that comes with iPhone 4. The emails that have been read will also show unread, and they can't all be marked as read. Log in decisively with the browser, and it is said that this problem only exists in the hotmail mailbox, so Gmail will be fine.

23. If you don't put more songs in, the alphabetical order will not be displayed on the right side of the screen, which is convenient for you to find songs. You can edit music information and match cover pictures in itunes.

24, safari browser favorites can first build a few folders, and then add them to bookmark when collecting web pages, which is very neat, and it can be deleted or moved, which is very ugly.

25. If you put the calendar function in a folder, there will be a delay. For example, it is clearly July 2 1 on the 20th. Just drag it out and then drag it in, or just put it outside.

26. It comes with a calculator, which has different functions. Moreover, you can delete the last digit by swiping horizontally in the number field, and the direction of the stroke doesn't matter, so you have to press C to save a bunch of digits.

27. If you want to select a paragraph, you can press and hold it casually, then drag the two endpoints of the selection box, then copy it, and then click and paste it into another input box.

28. You can also hold down the cursor for a long time when typing, and a magnifying glass will come out. Move to the place where you want to delete and let go to delete the word before the cursor.

29, a variety of input methods, long press the earth key can directly select the required input method, without repeatedly pressing the switch.

30, safari browser looks at the webpage, and clicking the link will give you an option to open a new window. I use the atomic browser now.

3 1, after the side mute switch is turned on, even the shutter sound of the camera is gone, which is convenient for sneak shots.

32. In the built-in clock tool, you can choose to turn off the ipod regularly, for example, stop playing automatically after half an hour. When you sleep and listen to music at night, you don't have to worry that the ipod will keep playing music after you fall asleep.

33.//private/etc/apt/sources.list.d is the default source and can be deleted here.

34. Installing openssh after jailbreaking means that you can see all files with ssh tools. appsync forios4 is aimed at piracy. You can sync any ipa with itunes. After installing openSSH, restart it. After jailbreak, just restore the backup after facetime and MMS disappeared, and it will be restored soon. facetime and MMS are back, or simply refresh and practice how to brush. The functions of Openssh and afc2 are basically the same, and they are both used to read system files. The so-called ipa synchronization patch is appsync of ios4.

35. Restore the firmware and use an umbrella to build your own server. First, check whether you have your own shsh. If you have started TSSserver, the software will automatically edit the host to map the Apple server to local 127.0.0. 1, and then press the shift key on itunes in DFU mode to restore the system firmware with the same version as shsh. Finally, if there is an error code, you can kick it out with umbrella.

36. Drag the picture directly into the wallpaper with ifuxbox, and it will be automatically converted into a format that can be used by the mobile phone. Looking at high-resolution rmvb with oplayer is still a bit of a frame loss.

37, SMS can only replace those six sound files, but it seems that it can't increase the number. I converted it into aiff with goldwave and renamed it caf.

38. Back up first, then delete or rename//system/library/private frame/telephone ui. The three pngs at the beginning of the BarLCD in the frame, this is the shadow map of the time background above, and the bottombarbkgndlock is related to the bottom, which is not afraid that the lock screen map will be blocked, that is, the lock screen people want is transparent.

39. Using ifile, open the application name option in the software settings, and you can see the name of each user program instead of a long list of alphanumeric IDs. If you slide down in any directory, there will be a search bar on the screen to search for files.

40. If respring is forced, the use time and standby time will become short lines in the settings, and they can be used again after being fully charged. For example, if you install a deb that needs to be restarted, this will happen.

4 1, you can turn off unwanted content updates in cydia. For example, I will turn off all theme-related updates, as well as q 1ang paper and ringtones, which will speed up the loading of cydia.

42. Say a little more about authority. Finally, I understand what those 0755 and 0777 mean. Let me briefly talk about my understanding. IPhone has four groups of users: all, users, groups and the world. The number of permissions of type 0775 is assigned to these four groups respectively, but they will all be assigned to 0. In ifile, only users, groups and the world can give you permissions. In fact, the number of permissions is converted from binary to decimal. For example, 7 is11,and 5 is 10 1. These three numbers in the binary represent readable, writable and executable respectively from left to right, so 7 is 165438. Generally, as long as it is put in the right place, the default permission is 755, so it doesn't need to be changed under normal circumstances.

43. I think it is enough to bring my own SMS function. I have also used bitesms recommended by many people. First, keep updating. Second, its short message sending, forwarding, MMS and other functions can be realized in the original short message program. Quick start chain screen can also be realized through quickdo. To send a mass message with the original short message function, just press the plus sign at the recipient, which can be a phone number or an email address, or a person can have multiple numbers and emails. If you want to delete one of them, just press the corresponding name to select it, and press the backspace key on the keyboard, which makes SMS forwarding easier. Just press and hold the received SMS to select Copy, and then paste. I think it's best to keep only one software of the same type.

44. When downloading deb on cydia, you can find the newly downloaded deb in /var/cache/apt/archives, download and install it and save it locally.

45. The documents of each game folder in/var 45./var/mobie/applications are generally archived and can be copied and backed up.

46. If skype is turned on in the background, the sound of other programs may come from the receiver instead of the speaker, or it may be due to the problem of the base plate of the mobile phone. In short, when the speaker is found to be silent, see if skype is still running in the background.

47,7 7zip software is a good thing, you can use it to open deb, because some debs don't display filecontent in cydia, which means you don't know where this Deb is installed. You can use 7 Zip to open deb, which contains control.tar.gz. The information of deb is recorded in the control file. Looking at dependencies can let you know whether this Deb depends on any software. Be sure to know about offline installation. When deb is opened, there is a data.tar.gz in it, which is a data file with clear structure. You can see the installation location of all files, and you can delete the corresponding files directly and manually when deleting them.

48.yes. String in the mobile phone file can also be regarded as a plist file, which can be opened with ifile's plistviewer. If you want to edit it correctly, you can open pledit on your computer, save it as utf-8 code and copy it to your mobile phone. If you want to edit it later, you can edit it directly with ifile. The purpose. String usually renamed it or translated the text himself. For example, the slider unlock text is in the system library coreservicespingboard.app system language. lprojSpringBoard.strings

49. After SMS voice replacement, you can also change your name. The path is//application/preference. Application/language. Lproj/Sounds.strings. You can change those words in the SMS ringtone settings through the editing mentioned in Article 49 above.

50, the font of screen lock time is/system/library/fonts/cache/lockclock.ttf, the font of screen lock date is the system fonts of sthe ti-light. TTC and sthe ti-medium. TTC, and the icons related to the main menu are basically in/system/library/coreservices/springboard.app/. If you don't have the icon you want here, you can find it in/system/library/privateframeworks/telephonui.framework, and the SMS bubble diagram is in/system/library/privateframeworks/chatkit.framework.

5 1, regarding the path, private/etc=etc, user = private/var/mobile = var/mobile, because the default user of iPhone is mobile, private/var/root=var/root, applications = var/dash/applications, which contains the software installed by itself and deb, belonging to the system level and characterized by long press. The user program is placed in var/mobile/Applications, and the source code is IPA. Long press can delete it completely. If you find something in var/stash/Applications that you can find on itunes, I'm sorry that you installed pxl.

52. To delete a single call record, please use recent/calllog delete1.4.1-1. There is also a very useful software called removerecents. After this software is installed, when you press home to exit the program, only the programs that support background running will return to the taskbar, and the programs that do not support background running will be completely closed, which is more convenient and better for me than one-click clearing in SBS. InfiniFolders _1.1-1,you can install any number of programs in a folder, which breaks through the official limit of 12 programs per folder, which is very cool.

53. After jailbreaking, you can choose to reset all the settings on your phone, but don't empty the contents and settings. This will be a white apple and must be refreshed.

54.cydia sometimes has a size mismatch, which may be due to the influence of the source that was not completely added before, and it is usually accompanied by a pop-up box saying that there is something wrong with the source. Go to etc/apt /sources.list.d, delete the whole line of source code in cydia.list, delete two bins in var/cache/apt, delete files related to this source code in var/lib/apt /lists, delete this one in var/libvar/lib/cy dia/metedata.plist, and then re-enter Cydia to download again.

55. Generally, there will be a normal version and a high-resolution version of the system diagram, which is characterized by adding a @2x mark after the same file name. For iPhone 4, I found the priority is this: If name.png and name@2x.png exist at the same time, @2x will be recognized first, and of course, if name.png is deleted by you, it will have the same effect. So if you want to change the icon, try to change the @2x icon, or you will be unhappy if the picture is not clear. Similarly, if you want to delete a picture, you should delete name.png and name@2x.png together.

56. Overlay the file//system/library/Frameworks/Addressbook.framework/zh _ cn.lproj/abcontactsections.plist in the English.lproj folder, so that the names of Chinese contacts under the English system can be sorted by pinyin initials. I usually enter my full Chinese name at the end and my English name at the front. I sort and display my contacts according to their surnames and first names in Settings-Contact Mail Settings. After this setting is completed, my contacts will be sorted and searched normally. In fact, I replaced the English settings with simplified Chinese settings. If the simplified Chinese system is used, you can directly switch to the simplified Chinese system for normal sorting. In the same way, putting//system/library/private frameworks/musiclibrary.framework/zh _ cn.lproj/mlsections.plist in the English.lproj folder can realize the normal sorting of the music in the ipod under the English system, so that all Chinese songs will not be sorted to 123. In both cases, first change the system language, and then switch back to English after overwriting the file.

57. If Baidu input method is installed, you can selectively delete the input method library that comes with the system to make room for the 1G system disk. //System/Library/Keyboard Dictionary can be deleted. //Library/Dictionary, I deleted Japanese and English, and the things I deleted in these two places can make room for the system disk 130M. After this deletion, the pinyin input method that comes with simplified Chinese can't be used. Test it yourself.

58. Only by combining the contents of the following three websites can we really solve the problems of cellular data network and MMS. Otherwise, it can only be futile or lucky.

/topic/77 145-IOs 4-enable-edge-and-carrier/

/topic/72 125-com mcenter-IOs 4-v40-on-iPhone-3g3gs/

/topic/74 123- patching commcenter -ios4-v40 1-on-3g3gs4g/

59. The iTunesmetedata.plist file in the user application (var/mobile/Applications) folder, in which softwareIconNeedsShine controls the reflection effect of the icon glass, and the info.plist file in the system application (var/stash/Applications) folder, in which the icon already contains luster and bevel effect, has the same effect.

60, you must install the new version of safari Download Manager 1.50 to use it. This version relies on mobilesubstrate, preferenceloader and sandcastle. Don't download the version that relies on p2pworld.

6 1, if the sim card is replaced after the lock machine is jailbroken and unlocked, it means that a different sim card has been detected and itunes can be connected. The solution is to add cydia. Pushfix.info to Cydia, and then install hacker patches in it.

62. If some crack programs can't download the latest version of the crack program, the appstore will always remind you to update it on your mobile phone after detecting it, which looks unsightly. We can go to the folder corresponding to the program, which is located in var/mobile/Applications, and then if there is an iTunesmetedata.plist in it, if the cracked version of the program does not have this file after installation, you will not be prompted to update it. If so, you can directly delete or rename this file, or delete or edit the version-related keys in it, and then look for them in the appstore. As for cydia, edit the status and status-old files in var/lib/dpkg, and change the software version that prompts you to update to be higher than the current version. If it still doesn't work, it may be caused by differences in different sources of the same software. Delete all useless sources.

63. If the white icon of the software is installed, sometimes turning it off and on may not solve it. You need to restart it, that is, log off. It is very easy to find a software called Rebound in cydia and install it, or reinstall preferenceloader whether it is installed or not. After the installation is completed, you will restart it, and then the white icon will no longer be white.

64. Modify SystemSoundMaximumVolume.plist and SystemSoundVolumeAdjustment. Plist in system/library/private frame/celestial body. Framework/N90 can effectively increase the volume of all parts of the system, and can completely mute the sound of cameras and screenshots without turning on the vibration switch. In the system sound volume adjustment. Plist, the number represented by 1 is changed from 1 to a larger one, for example, in 3, SystemSoundMaximumVolume.plist, it is generally good to change it to a larger one according to the meaning of each key value. This change is based on the latest principle of volumeboost software.

65. In N88AP.plist in System/L Library/Core Services/Springboard.app, you can disable voice control, that is, the function of long-press home and nike ipod, and of course you can disable other functions.

66. The pictures taken by mobile phones are very large, so the resizing will be blurred when sending multimedia messages, and the uploading time will be slow. Photogene is a very good picture software, which can not only do various effects, but also cut and resize. You can adjust the photos to a smaller resolution and then save them in the Camera Roll. Download address of the latest 3.6 1 cracked version

67. If you look at the capacity of your mobile phone in itunes and find that' other' is surprisingly large, such as exceeding 1GB, you can check whether it is in var/mobile/media/application archives, and if it is, you can delete it. If it's still big, you can go to iTunes_Control to enter music, delete all F folders, and then re-sync songs. Generally, it is because the files left before are not recognized by the mobile phone to the correct location.