How To Flash OTA Firmware Updates using Recovery And ADB Fastboot Commands

Mostly all of the advanced Android users wish to get the latest Android OS version on their devices but firmware updates are either available via OTA (Over-the-air) or update patches and android devices get updates in these 2 major ways and users are used to flash the desired firmware updates. But when an official firmware is released then it takes some time to made available all over the world as the official updates are rolling out gradually. But if you can’t wait for an official update to be released in your country then you’ll be required to upgrade your device manually.

Step by step guide to Flash Update Package using Recovery And ADB Fastboot Commands

There are two methods if you’d like to get the latest Android firmware updates on your device, the first is to update via stock or custom recovery to flash an update .zip file and the other is using ADB and Fastboot commands which is the official way is to flash the update file by connecting the Android device with a PC. Here in this guide we’ve given both of the methods to flash the firmware update files. Now go ahead and read the following guide.

1. Steps to Flash OTA Update via Stock/Custom Recovery:

Step No 1:- First, download the required firmware update file .zip on your PC and transfer it to your Android phone.

Step No 2:- Power OFF your phone in order to boot into recovery mode.

Step No 3:- Now turn ON the device while pressing and holding special buttons like Volume Up+Home+Power at the same time. The combination of these buttons may be different which is specific to all devices

Step No 4:- As the Android device is now in custom recovery like TWRP or CWM, select “Apply Update”, or “Choose Update from SD Card”. Locate the firmware .zip file that you have already transferred to your Android phone.

Step No 5:- Select the firmware file using the Power button and then choose Yes to confirm the flashing process.

Step No 6:- The flashing process may take a few minutes (depending upon the update size).

Step No 7:- After the installation is completed successfully, reboot the phone and enjoy the latest Android operating system.

2. Steps to Flash OTA Update using ADB & Fastboot Commands:

Here we have also given an example video on how to flash Android 6.0 Marshmallow (Nexus 5/6/7/9).

By: TechnoBuffalo

Step No 1:- To flash Android firmware update, first download and configure ADB and Fastboot on your PC.

Step No 2:- Download the Android firmware update .zip file on your PC and give it an easy name like “Update.zip”.

Step No 3:- Boot the device into recovery by giving the following command:

adb reboot recovery

Step No 4:- As your phone is now in Recovery mode, choose “Apply Sideload from Fastboot”, or any similar option on your phone.

Step No 5:- Open the folder where you have saved the firmware file and within that folder run command prompt and enter this command:

adb sideload ota.zip

Step No 5:- After give the above command will begin the OTA installation.

Step No 6:- This process may time long time to complete the installation.

Step No 7:- Reboot your phone and disconnect it from the computer after the flashing is completed.

Let us know in the comments area below if you have any question regarding the above steps.

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About the Author: Aamir Jamal

An Android Geek and audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff. He has written 1045 guides and other posts.

1 Comment

  1. I am getting an error “Update.zip can not be read” in the command window when using ADB, what can be the possible reason? Thanks.

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