has been delayed for nearly 10 days. The official version of Android 5.0 Lollipop factory image has finally begun to be released. In order to facilitate netizens to eat "lollipop" faster, here is a brief summary of the flashing tutorial for factory image release, hoping to help you use Android 5.0 Lollipop as soon as possible.
Preparation
1. Unlock your Nexus device
- Unlocking tutorial: http://www.inexus.co/thread-3741-1-1.html
- Warm reminder 1: The device will be cleared during the unlocking process. Remember to back up the data.
- Warm reminder 2: If you don’t know if your device is unlocked, you can restart your phone and observe whether the “white small lock” appears at the bottom of the screen before turning on the phone animation is closed. If your device is the same as the picture below, it proves that your love phone has been unlocked long ago.

2. Configure the adb fastboot environment on a Windows computer:
- Download and unzip the adb toolkit (download address)
- Copy the files containing adb and fastboot.exe in the name to
- in the c:/windows/system32 directory and then copy all files containing adb in the name to the c:/windows/system folder
- Considering that most students using MacBook use noble and cool iPhones, I won't explain more about OS X configuration adb The environment tutorial is available. Interested students can move to: http://www.inexus.co/article-1636-1.html
Download the factory image
After the preparation is completed, the tutorial officially begins. First, find the image corresponding to your model in "Android 5.0 Lollipop official version factory image download" (requires scientific Internet access), then open the factory image in the compression tool and decompress it to any directory.
Note: This Android 5.0 Lollipop update is only for Wi-Fi version of Nexus tablets. Nexus 7 LTE users should not upgrade impulsively, otherwise they will bear the consequences.
officially starts flashing
- to connect the device to the computer and enter the directory after decompression of the factory image;
- find flash-all.bat, and double-click to run (OS X needs to enter sh flash-all.sh in the terminal);
- sees the command line window showing waiting for drive, manually turn off the device, and press and hold the power key and volume down keys at the same time;
- At this time, the Nexus device will enter bootloader mode and start flashing.
The entire process will last for two or three minutes. After completion, the phone will automatically restart and enter Android 5.0 Lollipop. This time you need to wait for a long time to boot. Please be patient.


Warm reminder
1. When flashing into the image, the system will clear all data of the device (including built-in SD card data) by default. Please do relevant backup work.
2. If you want to keep your mobile phone data and upgrade it directly, you can use "Notepad" to open it before running flash-all.bat. removes "-w" in "fastboot -w update image- xxx-xxx.zip" and saves it. . Flash-all.sh needs to be modified under OS X.
3. After the data is retained, various unpredictable problems may arise in the new system.
Some of the contents of this article are compiled from Nexus Chinese website