Android 5.1 Lollipop, now seems everything stable – better performance, no more app force closing issues(ANR’s) and better battery backup. Seems like Google have fixed almost all prevailing issues which they have seen in the initial version (Android 5.0) and with the 5.1.1 the lollipop could be yet another stable OS next to KitKat 4.4.4 as the Android M is already making news which probably be announced in the Google I/O dated next month.
Now, our status is STABLE, which is also an option for us to switch back to that stable release(Android 5.1.1 lollipop) at any point if you are a custom rom savvy like me who keep on flashing new roms whatever out there on internet. To be frank I have seen a better battery backup while I am on Cyanogenmod 12.1 than on Official Stock Rom. Even the performance of the device is far far better than the official. Rooting and Flashing custom recovery is always a primary thing you suppose to do inorder to gain administrator rights. Whether you want to remove that persistent Google Search bar at top of the home screen or flash a entirely different rom. Rooting is a basic thing you suppose to know before you get started.
How to Root and Flash Custom Recovery
To flash a custom rom or to gain full administrative access, your device must be in unlocked state. To check, power off your phone > Press Volume down + power button to boot into bootloader. There you should see the Device State as Unlocked. If yes, then you are good to go (No data loss) . If No, follow the complete guide.
Step 1 : Prepare your Phone/Tablet
Since this method will utilize Android Debug Bridge (ADB), you’ll need to enable USB Debugging on your device, which is in the Developer Options menu. If you don’t see that menu in your Settings, let’s unlock it now.
Head into Settings, then scroll all the way down to the bottom and hit About Phone. In here, scroll down to the bottom again and tap Build Number seven times in rapid succession.
Next, back out one level and you’ll see a new Settings menu titled Developer Options. Open this menu, then tick the box next to Enable USB Debugging and press OK on the subsequent popup.
Step 2: Connect Your Phone/Tablet to Your Computer
This is a simple step, but it’s an important one. You’ll need to connect your phone to your PC to apply the update, but the USB cable you’re using to do that is important. Make sure there is no visible damage to the cable and the connection it makes at both ends is firm.
Step 3 : Install Nexus Root Toolkit
This is a superb tool which not only simplifies the things but also explains each and every option and its purpose. To download Nexus Root Toolkit click this link from your Windows PC.
When the download has finished double click the .exe file and hit RUN. From the next window, click Install.
When the installer is finished, you’ll be asked to enter your device name and Android build number. Choose your device and its built from the drop down and click Apply.
At this point, you’ll see a dialog box instructing you to enable USB Debugging on your device. We’ve already covered that part in Step 1, but you’ll also need to allow your computer to connect to your device at this point.
Unlock your device and you should see a dialog box asking you to Allow USB Debugging. Tick the box next to Always Allow From This Computer and tap OK.
Next, NRT will ask you to download a couple of files. Click OK to allow it to download all of the necessary files.
Step 5: Configure Nexus Root Toolkit (NRT)
At this point, you should be looking at the main screen of the Nexus Root Toolkit. First, you’ll need to install the ADB drivers if you haven’t already done so. Right up top, tap the button that says Full Driver Installation Guide to get things started.
On the next screen, click the Step 3 tab and take note of the Recommended Driver Solution. Click the corresponding driver solution below it, then follow the prompts for driver installation.
To check whether the drivers configured properly or not. Goto Step 4 and hit the Full Driver Test.
When finished, head back to the Nexus Root Toolkit’s main page.
Step 6 : Create Android Backup File
It is always advised to create of a backup of your current stock rom because if something fails in middle of the process you have an option to restore back, no worries. Nothing gonna happen. To create a backup of all your existing apps and data click that Backup button under Backup+Restore on main screen of the NRT and then the “Create Android Backup File“.
Be patient, the backup process takes time to complete.
Step 7 : Unlock the Bootloader
If you haven’t unlocked your bootloader you may now have to. Inorder to root the device you first have to unlock it and this process erases all the data on your device. So, it is recommended to take a backup of all your apps and their data before you begin this process.
Now, just go ahead and click the Unlock button.
The phone then boots into bootloader and thus begins the process. At the end you may notice the “Lock State – unlock” which states, the phone has been unlocked successfully.
Step 8 : Root and Flash Custom Recovery
Now our purpose, full administrative access and that is possible only by root. So, from NRT’s main screen, under the Root subsection, tick the box next to And Also Flash: Custom Recovery. Then, just hit the Root button to begin the process.
On the next screen, click OK to begin rooting and installing a custom recovery on your phone. When it’s all finished, a confirmation box will let you know that the process was successful. You should see two new apps in your app drawer one is SuperSu and other BusyBox.
That’s it. Now you are ready to try that category of apps which requires root access and also ready to flash any custom rom and revert back to original state using TWRP custom recovery.
Hope you like the guide, any quires feel free to ask using the below comment section.
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Links of Interest:
Nexus Root Tool Kit : Download Link