In this regard, it is no hidden secret that flashing a customized Android-based ROM has always been the fan-favorite. Be it the highly customized ones such as HavocOS or the basic ones part of the AOSP family, you have a lot to choose from. However, there still exists a few doubts in the mind of the users when it comes to flashing these ROMs. And the concerns grew only more in case of absence of working of a custom recovery. But as of now, there’s a new development brewing up that has the potential to completely change this landscape, and for good. You could now flash custom ROMs onto your Android device right from a web browser. In this guide, we will make you aware of the detailed instructions set to carry out this task. But first, let’s check out some of the associated advantages of using this ‘new’ method of flashing ROMs.
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Why you should Flash Custom ROMs via Web Browsers?
The general method of flashing a custom ROM requires the use of a custom recovery like TWRP. You just need to wipe some device partitions, decrypt the data partition if required, and then flash the ROM ZIP file. So can’t we install a custom one without TWRP? Well, you can, and it requires flashing the custom ROM files to their respective partitions via Fastboot Commands. However, this process is only valid for a limited set of ROMs that have their files packed inside paylaod.bin. So since flashing ROMs via TWRP is such an easy and widely approved method, why the need for a change? Well, first and foremost, not every device has a working TWRP build. For this set of devices, you might notice a lack of custom ROM support. Furthermore, even if your device supports TWRP, installing them might prove to be a challenging task. Due to the presence of A/B partition devices (aka absence of recovery partition and flashing recovery via boot), some users could have a tough time installing this recovery. And this would lead to the reluctance in flashing ROMs as well. Apart from all these facts, there are tons of ADB and Fastboot issues that you might face from time to time. Whereas flashing of ROM via a web browser requires nothing apart from, well, a web browser! All these reasons would have given you a perfect idea as to why I am inclined towards this project. So let’s now start off with the guide to flash custom ROMs on your Android device using a web browser.
How to Flash Custom ROMs on Android using Web Browser
This project has been created by XDA Senior Developer kdrag0n. He also maintains the ProtonAOSP ROM for the Google Pixel 5 and other Pixel devices. So as of now, this project supports flashing the ProtonAOSP ROM onto the following Pixel devices:
Supported Device List
Pixel 2 (walleye)Pixel 2 XL (taimen)Pixel 4a 5G (bramble)Pixel 5 (redfin)
This JavaScript-based flashing tool already has a working Android web installer that would allow you to flash custom ROMs on Android directly via web browsers. However, since it is an open-source project whose source code is available on GitHub, there is every possibility of other developers porting this project onto other devices and for other ROMs as well. Well, XDA has rightly titled their write up “The future of flashing custom ROMs will be through a web browser”, and we couldn’t have agreed more. It’s just a matter of time before this becomes the go-to choice for a large chunk of the userbase and developers alike. With that said, if your device is part of this support list, then you may proceed with the below steps to flash custom ROMs on Android using a web browser. Droidwin and its members wouldn’t be held responsible in case of a thermonuclear war, your alarm doesn’t wake you up, or if anything happens to your device and data by performing the below steps.
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STEP 1: Unlock Bootloader
First and foremost, you will have to unlock the device’s bootloader. Do keep in mind that doing so will wipe off all the data on your device and would also make the device’s warranty null and void. So if that’s fine with you, then refer to our detailed guide: How to Unlock Bootloader on Google Pixel Devices. When devices from other OEMs get added to the support list, we will add the unlocking guides for those devices as well.
STEP 2: Boot your device to Bootloader Fastboot Mode
Next up, you will have to boot your device to Fastboot Mode. As for Pixel devices, you will have to power it off. Then press and hold the Power and Volume Down buttons for a few seconds until you are taken to the said mode. Do keep in mind that this hardware key combination is only valid for Pixel devices. For other OEMs (if they get added to the support list in near future), you may have to find the device-specific combination or use the below universal method:
STEP 3: Install Custom ROM on Android via Web Browser
As already mentioned before, as of now the below instructions focus on installing the ProtonAOSP ROM onto various Pixel devices. As and when more devices and ROMs get added to this list, we will update this guide (and more importantly this section) accordingly. Furthermore, you could use any Chromium-based browser such as Google Chrome, Microsoft Edge, etc to carry out the below process. With that said, let’s now start off the tutorial. So this was all from this guide on the steps to install or flash custom ROMs on Android devices using a web browser. If you have any queries concerning the aforementioned steps, do let us know in the comments. Furthermore, we will be regularly updating this guide as and when more devices/ROMs are added to the support list. So don’t forget to bookmark this page and stay up to date! [Screenshots Credit: [email protected]GitHub ].
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