Nexu 6p Android phone AMOLED screen enable sRGB to solve color issue

Settings - about phone - click build number to enable developer mode

Go back setting page :
Settings - Developer Options -- > Picture Color Mode --> Use sRGB ->Enable

iOS Android 如何设置代理翻墙看国内视频

ios 进settings, wifi, 点你连接的ap右面的右箭头，在最下面http proxy选择auto，
url里面填写http://yo.uku.im/proxy.pac

Android安装proxydroid，在proxy settings里面xcheck auto setting， pac里填写上面
这个地址，然后check auto connect

Android的优化

1. 系统速度逐渐变慢

当你购买了一款配置不俗的全新Android手机，一开始会觉得系统运行速度很流畅，但是随着时间的推移，系统会变得越来越慢。你无需坐以待毙，也不用更换手机，只要下载安装一些支持自动定时清理的应用软件，比如"360"解决这个问题。

2. 无休止的通知提醒

Android系统的通知总是在不停地发出通知内容? 你可以尝试在通知设置中手动关闭一些内容，但是无论关闭多少，总是会有新的服务通知蹦出来。所以，最有效的解决方法不是逐个手动关闭通知，而是选择一个无声的音频文件作为默认声音。

3. 无法摆脱的预装垃圾软件 

大多数Android设备都预装了一些厂商自家服务或是运营商的定制服务，有些或许是精品，但大部分其实都是一些垃圾软件，你可能从来不会去使用它们。同时一些内置应用无法卸载，并且在开机时自动驻留RAM中，影响整体性能。所以，你可以做的是在设置菜单中禁用这些应用。或者"360 mobile"等软件卸载

4. 电池寿命较短

残酷的现实是，如果你用一款Android手机进行以上操作，往往坚持不了一整天就需要充电。如果你愿意做出一些取舍，可以通过降低屏幕亮度、禁用背景数据和关闭GPS等操作，来延长电池寿命，而无需购买额外的电池或便携式充电器。如果不担心保修问题，你还可以通过Semaphore内核设置来降低手机的电压，来获得更长的续航能力。

5. 更精准的电量显示功能

大多数Android手机都没有提供精准的电量显示功能，所以你无法判断精准的剩余电量，从而控制使用强度。如果手机厂商没有为其配备电池百分比功能，你还可以通过下载第三方应用程序来实现这个功能。

6. 界面效果更美观

也许不喜欢它的界面效果，还可以通过安装第三方界面应用来进行美化。Android领域的第三方界面软件十分丰富，比如GO桌面EX、国内MIUI等等，基本上都配备了个性化的主题，甚至是自定义的手势功能，一些界面软件的运行速度甚至要比原生更为流畅。

7. 获得其他Android手机的独家功能

有时候你可能会羡慕其他Android手机内置的一些独家功能，比如LG Optimus G Pro的QSLIDE多任务窗口、Galaxy S4的画中画视频播放或是Droid RAZR的智能操作自动化服务等，其实你完全可以使用第三方应用来实现这些功能。比如在谷歌商店中搜索“浮动应用程序”，就可以找到“漂浮浏览器（Floating Browser Flux）”或是“超级视频（Super Video）”播放器，能够实现一定程度上的多任务操作功能；另外，类似“Tasker”这样的系统应用，只要设定一些条件，就可以实现手机自动化操作的功能。

8. “分享”菜单有太多选项

Android的最佳功能之一是其丰富的分享菜单功能，几乎列出了所有的可用内容，不过随着程序安装的增多，你会发现一些根本用不到的选项，看起来十分碍眼。第三方应用程序“Andmade share”可以帮助你解决这个困扰，它可以重新自定义分享菜单，删除不必要的选项，并根据自己的需求进行重新排列。

9. 解锁界面太复杂

一些智能手机厂商开始在解锁界面上添加更多的内容，比如显示天气、最常用的应用程序甚至了社交应用的更新内容，但如果你只需要一个简单迅速的解锁界面，可以进入系统设置中更改解锁屏幕的显示信息。

10. 错误的系统默认应用

有时候你想打开Android手机中的一个文件，但却发现并不是你最希望使用的软件，这可能是一些应用程序更改了默认的打开方式。与Windows系统一样，你也可以自行设置系统打开相关文件的默认应用，只需要进入应用程序设置栏目中，清除应用程序的预设值，再次打开相同的文件时，系统就会弹出选项，让你选择默认应用，可以根据需求选择“始终”或是“仅一次”的操作形式。

11. 默认输入法太难用

通常情况下，Android手机的系统内置输入法都很糟糕，很难获得良好的使用体验。事实上我们依然可以通过下载第三方应用来改变这个情况，在谷歌应用商店中，可以找到一票类似的软件，比如QQ输入法，拥有更好的手机键盘效果，也可自定义皮肤，更加符合国人的使用习惯。

12. 过时的Android系统版本

目前Android系统的最新版本是4.2果冻豆，但可能你的手机还是Android 4.0冰淇淋三明治、甚至是更过时的2.3版本。换句话说，你会错过一些最新的功能，比如谷歌语音助手、详细的通知内容以及所有适配新系统的应用程序。那么，除了祈祷手机厂商会在某一天内放出新版固件，你也可以尝试自行刷机。不过，刷机过程相对复杂一些，有可能会将设备刷成砖头，并且丧失保修服务。你可以参考一下XDA等专业论坛，一些ROM爱好者提供了相当丰富的自定义固件，并且附有详细的刷机条件和说明，只要按照步骤正确操作即可。对于已经ROOT过的机型，不仅可以刷自定义固件，甚至还可以超频，获得更流畅的使用体验。

Andriod 4.1.2升级窍门(for nexus 7 and more)

没收到系统升级通知，检测不到有版本需要升级，按如下办法

1、到settings,  apps, all, 里面找到Google service framework，
2、然后点force stop ，确定
3、再点clear data,  confirm
4、回到about,  system upgrade ，这个时候你看到的时间是1969
5、点check now


多试个3，5次一定可以监测到有升级的

Best video player for ICS so far (tested with ASUS Tranformer prime tablet and Galaxy Nexus phone)

1. Bsplayer in hw(Bsplayer engine), mode works great. I normally use BsPlayer, since it has built in samba client and therefore no need to use ex file explorer to start dice player. If BsPlayer does not cut it, then I switch to Diceplayer.

2. Mx video player does not currently decode all formats i hardware on the prime, so wait a little while with that. I currently use Dice Player which has played 99% of my videos on HW. For the other 1%, MX Player seems to have the fastest SW decoder.

3.Also MX player is so far the only player that has been handling multiple audio tracks and multiple subtitle tracks well.

4.Updated @ 20120201
Dice Player Ad. all videos can be played with the player and I like it very much

Transfer Contacts From iPhone to Android

If you are an iPhone user surely you might have interested in switching to android phones. But one of the challenging thing in migrating from iPhone to android is you need to transfer iphone contacts to android. Few weeks before I wrote to backup your entire android phone and to backup your android sms to gmail. In both the backup process Google is the primary point and we can backup everything to Google easily.

The same we going to follow in our contact transferring from iPhone to Android. We will be using Google Contacts for transferring the contacts from  your iPhone to android. Here I gave the procedure for transferring the contacts from iPhone to android from mac also the procedure for windows machines.

To import iPhone Contacts From Mac to Google Contacts

1. Connect iPhone and open the iTunes in your macbook ( iTunes 7.7 or later version is preferable)

2. Select iPhone from the device list in your iTunes.

3. Click the info tab in your iTunes.

4. In address book click the sync address book contacts option.

5. Select all contacts and check the sync Google Contacts option in the same page.

6.Click configure button to enter your Gmail id and password.

7. That’s it, all the contacts from your iPhone are sync with Gmail contacts.

Note: For sync your iPhone contacts with Gmail you need to clear all the contacts in your Gmail account. Otherwise use a fresh Gmail id for sync your contacts.

To Import iPhone Contacts from PC to Google Contacts

1. Install iTunes latest version in your windows machine. Download iTunes (latest version).

2. Connect iPhone to your PC.

3. Go to iTunes and select the iPhone from device list.

4. Click info tab and select sync contact with.

5. Select Google Contacts from the list.

6. You will be prompted to enter your Gmail id and password.

7. After entering your Gmail id and password click ok to start sync.

To Copy Contacts From Google to Your Android Phone

1. Go to Accounts & Sync in your android phone (menu -> settings -> Accounts & Sync)

2. Tap add account option at bottom of the screen.

3. Select Google from the list and enter your Gmail id and password.

4. Then your Gmail account will be sync with your android mobile.

5. Tap the Gmail account as show in the above screenshot above.

6. Then you will have a list of options to enable or disable sync with your android mobile.

7. Tap on Google Contacts then it will automatically sync the contacts from Gmail.

8. That’s it all  your Google Contacts will now appear in your android phone contacts.

soruce: http://www.dailytut.com/apple/transfer-contacts-iphone-android-mobile.html

Android setting for battery saving

disable network time sync.
disable wifi or turn off wifi when screen is off.
install setcpu, set lower idle cpu speed.
or
set it at airline mode at night.
I found out that airline mode really saves battery.

more----------------

1. Screen Timeout

You must have noticed, whenever your Samsung Galaxy S is left idle, its display is automatically turned off. This is nothing but screen timeout. You can set the screen timeout at minimum level so the screen would never stay active for long once left idle. You can reach to this option just below the brightness option and then set the time of screen turning off in just 15 seconds when it is left idle. Just go to Applications > Settings > Sound and Display > Screen Timeout and change the time according to your convenience.

2. 2G Network Mode

3G phones eat a lot of battery while connecting to 3G networks for web connectivity. When you are not using 3G network, try to use it on 2G network mode. You can do this by pressing menu button > Settings > Wireless and network > Mobile networks and then select option for “Use only 2G networks”.

3. Use Built-in Battery Usage Screen

This is hardly known to casual Android users. There is a built-in Battery Usage Screen which exactly tells what is eating your battery. To access this screen go to Settings > About Phone > Battery use. Now you can easily check out what is killing your Samsung Galaxy S battery.

4. Limit The Brightness

Try to limit the brightness of your Samsung Galaxy S at a lower level. The brightness of Samsung galaxy S comes with automatic setting which decides the brightness of screen as per the surrounding. This settings requires the sensor on which would drain the battery. To change this setting just go to Applications > Settings > Sound and Display > Brightness Setting and then uncheck the option for “Automatic Brightness”. Now you can set the brightness to a lower level to save the battery.

5. Disable Wi-Fi/Enable Airplane Mode

Wi-Fi is considered a far better option than 3G network in terms of battery consumption but it is also a big time battery consumer. If the option of Wi-Fi is enabled your handset will keep on scanning for available Wi-Fi networks every now and then. So it is better to disable Wi-Fi when it is not required. You can do this by enabling Airplane mode. To do this head into Settings > Wireless & Networks > Airplane Mode or you can also toggle the Wi-Fi on or off with the help of widget available in your phone.

6. Disable Bluetooth

Bluetooth is required either at the time of file transfer or while using a wireless headset. Beside this there is no point to have Bluetooth running on all the time. Switching it off will probably save the battery life.

To switch it off go to Settings > Wireless & Networks > Bluetooth or you can also use the power widget to disable it.

7. Use Power Widget to Toggle Wi-Fi, Bluetooth, GPS & Screen Brightness

Just like any other Android phone Samsung Galaxy S also includes a built in Power Widget which can be used to toggle the settings on or off for Wi-Fi, Bluetooth, GPS and Screen Brightness. Long press on the background of your screen, choose widgets > select Power Control to add it to the screen. Once added you can easily toggle the on or off options for the mentioned utilities.

8. Disable Constantly Syncing App

There are certain apps which sync on a regular basis to get the updates from internet. One of them is Email application which uses Push technology. You must change its setting to sync manually which is the best option but if you want it to sync automatically then set it to sync less frequently.
To do this, open Email application and go to your email account. Choose Account Settings > Email check frequency. Change its option to something more like an hour or never. You can always refresh manually whenever you wish to read your mails.

Well this one was for email but you can do the same for other accounts like Twitter which is updated almost more frequently and is in fact less important. Just go to Settings > Background Updates > Update Interval and set it accordingly.

For Facebook also same settings can be done. You just need to go to settings from the main Facebook screen and there select Refresh interval from the menu. Set the time as per your requirement.

9. Disable GPS Location Features

As we all know, the apps which sync constantly suck battery a lot. GPS is one of those apps which top the list. When it is used for navigation battery of Samsung Galaxy S dies very fast. There are many applications which use GPS. To prevent such situation of drained battery due to GPS, change the GPS to use wireless networks and uncheck the option “Use GPS satellites”. This setting makes GPS a little less accurate which may become a problem but it helps in saving battery.

10. Use Task Manager

Using a task manager is one of the wisest options. You can use Advanced Task Cleaner or any other similar app to kill applications which are not required. Also you can monitor which application is launching itself repeatedly and hence you can setup an auto kill list for such applications. The function becomes more helpful when you configure advanced task manager to show CPU usage by every single app.

11. Disable/Remove Unused Apps

If an application can be disabled from being used in background, then it is fine otherwise you should remove it. Apps which drain battery most and hardly used must be removed. This can be done from Android battery panel or task manager. Just go to Settings > Applications > Manage Application and then click uninstall button to remove that specific app.

12. Disable Unused Screen Widgets

Some widgets also pull a lot of data from the web. Pulling of data every time even when it is not required hamper the performance of battery. That’s why such widgets which are hardly needed must be removed.

13. Power Saving Mode

Power Saving mode comes by default in Samsung Galaxy S phone. When activated, it automatically starts saving battery by functioning in proper way. To activate the power saving mode you must go to Applications > Settings > Sound and Display and then select “Power Saving Mode”. Once activated it will analyze the images and adjust LCD brightness to save battery.

14. Disable Live Wallpapers

Samsung Galaxy S was launched with beautiful live wallpaper. Live wallpaper looks really good but consumes battery also. So get rid of live wallpapers. It will surely help you in saving a small extra battery.

15. Use JuiceDefender

If all of the above options are looking like a big task then you can simply use JuiceDefender. JuiceDefender is a multipurpose application and the best in its class. It helps in saving battery of Android phones. In one of our earlier post we mentioned all its utility and how JuiceDefender helps in increasing battery life of Android devices.

quick guide on how to upgrade your Transformer (any build) to a ROOTED WW 8.4.4.5 release (Android 3.1)

This is completely stock Android 3.1 but with root / Superuser and busybox added.

Please note that you follow this guide at your own risk! Although the process should not wipe your device, I advise backing up your data first.

PLEASE READ THESE INSTRUCTIONS THROUGH BEFORE YOU START!

• Download the 8.2.3.9 update zip - DOWNLOAD (Mediafire Pro) - MD5: d8e37ec527dd8d701633cd337f767b5c
• Extract the contents of the above zip (maintaining the directory structure) to a microSD card and insert in your Transformer. An update notification will appear in your system tray - click the notification and your device will reboot and rollback to 8.2.3.9.
• Download the rooted 8.4.4.5 rooted update zip - DOWNLOAD (Mediafire Pro) - MD5: 4375ddec4d3470037d58cd2434cd8bf5
• Copy the zip file to your microSD card. Do NOT extract it, just copy it as-is.
• Download the 8.4.4.5 root utlity zip - DOWNLOAD (Mediafire Pro) - MD5: ca37aa989698d17e690d1a89ac025487
• Extract the utility zip on your PC, and from a command prompt / terminal window at the location you extracted the files, enter the following commands (note that the Gingerbreak command may take a while), replacing adb with ./adb-mac or ./adb-linux as required:
  
  
  CODE
  adb push blob /data/local/
  adb push gingerbreakBB /data/local/
  adb shell chmod 4755 /data/local/gingerbreakBB
  adb shell
  /data/local/gingerbreakBB
  dd if=/data/local/blob of=/dev/block/mmcblk0p4
  reboot
• Your device will now reboot and show a blue progress bar. When this finishes and the screen goes black, hold down the 'volume down' butotn. When prompted, press 'volume up' to enter ClockworkMod recovery.
• Select 'install zip from sdcard' -> 'choose zip from sdcard' -> '8.4.4.5-rooted.zip' -> 'yes'.
• Reboot your device from the menus and that's it, job done!

source: http://android.modaco.com/content/asus-eee-pad-transformer-transformer-modaco-com/341227/upgrading-to-rooted-ww-8-4-4-5-android-3-1-from-any-version/

The inner workings of Secure Boot key and Nvflash

What is Secure Boot Key and how does it work?

I’ve been getting lots of questions about this, so here is some simple background:
The secure boot key is an AES128 encryption key that can used to encrypt various data on the flash memory. It’s a generic nvidia tegra2 thing, that the manufacturer can optionally use to make their device more “secure”.
When the SBK is set, it’s stored in a one-time-programmable “fuse”. This also means that now that the key is out, they can’t change it on already released devices, only new devices.
When the tegra2 starts up, the AES key is available to the hardware AES engine only. E.g. not even the bootloader can read it back! However, the bootloader can *use* the key to encrypt whatever data it wants through the hardware AES engine. And here is the explanation why the blob flashing method actually works! The bootloader checks for the blob in the staging partition and encrypts and flashes it as needed.
Once the bootloader is done, it clear the key from the AES engine which makes it impossible to encrypt or decrypt things from within the OS.

So what happens when it boots into APX/Nvflash mode?

The basic APX mode is stored in the BootROM and hence can never be changed. It appears to accept only a very limited range of commands, and each command needs to be encrypted using the SBK to be accepted. If it receives a command that’s not properly encrypted, it disconnects the USB and appears to be off. This is the dreaded “0×4″ error that people have been getting when attempting to get nvflash working.
It should be noted, that even with the SBK inputted into nvflash, most regular nvflash commands won’t be available. I’m still not entirely sure why (and I can’t rule out it will change).
What *is* available, is the nvflash –create command. What this command does is repartition and format all partitions, set bct and odmdata and send over all  needed partitions to the device (and encrypt them as needed). This means a full recovery is possible, but regular ability to flash e.g. just boot.img or read partitions off of the device is not possible at this point.

So what do we need for nvflash?

In order to get a working (e.g. –create) nvflash, we need a few bits of information as well as some files:

• Secure Boot Key
• BCT file (boot device setup, ram configuration and a bit more)
• ODM data (board-specific bit-field specifying various board settings. *Needs* to be correct
• flash.cfg (e.g. list of settings and names/identifiers of partitions.

On top of these files, we also need all the partitions, e.g. bootloader.bin, boot.img, recovery.img and system.img. Luckily, these partition files are available in official ASUS updates and can be extracted from the blob file using my blob tools :)
The first four peices aren’t readily available, but through lots of effort and a good deal of luck, we have managed to recreate the needed files. Secure Boot Key has already been released (note that this was by far the hardest!) and the rest will most likely follow over the weekend. Keep in mind that we want to keep this legal, so don’t expect us to release any ready-made packs for unbricking! We will however make the recreated files available. Since these are recreated and not actual ASUS files, there should be no problems with them.

source: http://androidroot.mobi/tf-secure-boot-key/

如何加Widgets到Ａｎｄｒｉｏｄ平板电脑home screen

Long Method

Before you get started make sure you have space for a new widget on your home screen, if you have many widgets already filling your screen you will need to remove one of those widgets before proceeding. Since many Android phones come with multiple home screens you can always move things around or select a screen to dedicate to widgets.
Start by clicking on the Home key on your device so you can go to the home screen of your Android phone.
Next you'll need to click on the Menu button and you can then select the Add button on the screen. If you have an HTC Desire then it will say Add to Home, here's a screenshot.

After clicking on the Add button you'll then see the Widgets option among other icons. Click on Widgets in order to access all of the widgets currently found on your device.

Once in the widget screen simply navigate to the widget that you want to place on your homescreen. Typically you will find several already available widgets, plus any you have installed yourself. You can scroll through your widgets if there are numerous options to choose from.

Simply clicking on the widget you want to use will then add that widget to your home screen. Click on your home screen button and if the widget appears you're all set for use.

Short Method

Long press on any empty space on your homescreen (a long press will last a couple of seconds). You'll then notice the Widgets option just as you would with the longer method. Click on the widget menu then click on the widget you want to install, this will place your widget on your Android home screen.
On HTC phones you can also use the + button at the bottom right to add widgets. You can see it highlighted in this screenshot. The rest of the process is exactly the same.

Working with Widgets

If you want to move a widget then simply hold your finger on it. It will detach with a vibration feedback and you can then move it around to the position you want. If you want to delete it then select it in the same way until it detaches and then drag it to the trash can at the bottom of the screen.

The widget in that screenshot is the Power Control widget that you'll find on many HTC Android phones and it's extremely handy for quickly turning data, Wi-Fi or Bluetooth on or off. There are loads of other great Android widgets worth checking out so take advantage and grab the ones that interest you. They are great time savers.

Read more: http://www.brighthub.com/mobile/google-android/articles/48646.aspx#ixzz1OXuX9qtA

[Android] How to copy/past/delete files in System folder

U need "Root Explorer"

Or droid explorer, or basic knowlwdge of linux and the terminal emulator