This is what you need to download the official Blu Selfie S470I stock ROM (firmware) flash file that can then be installed by using an appropriate flashing tool on a computer that works for your manufacturer and the device’s chipset.
Most flashing tools were originally used by mobile device repair centers, and the only updates the user would install by themselves would be official over-the-air updates when they arrive from the manufacturer or carrier network that they might be a current subscriber for.
Nevertheless, as time has gone on and smartphone usage has evolved, installing these firmware files manually yourself by using a flashing tool is now considered a fairly standard way for smartphone and tablet users to solve common issues such as bootloops, hanging software, software bugs, update errors, and even seemingly dead phones.
Flashing firmware manually is also common among Android users who enjoy tinkering with the operating system by customizing it away from stock Android. Custom recovery image and rooting developers warn against installing official OTA updates after you’ve done either of those two things though. This is because most OTA updates are differential in nature: they don’t replace the entire system or make changes to the system partition. Differential updates often just patch over the existing updates and sometimes don’t even replace whole files.
Making system partition changes by removing unwanted system applications, installing BusyBox, or just getting root access in itself depending on your Android version, and then going back to differential updates can result in unexpected behavior happening with your ROM. Additionally, Android developers might make changes to the stock recovery which can’t be seen by custom recovery developers since they can’t get their hands on the source codes a lot of the time, so going back to a stock recovery can result in unexpected behavior, too. For more information on what makes system partition changes, use a search engine such as Google.
Installing official updates often removes root access and replaces custom recovery images with the stock recovery. It’s advised that instead of installing official updates you just wait for the custom software to come out, which generally happens within a few days of the official updates. But if you still want to go back to an official update from the manufacturer, it’s best to go back completely to stock by flashing the firmware manually.
Download Blu Selfie S470I Stock Firmware
File Name: Blu_Selfie_S470I_V13_MT6592
Firmware File: Download
How to Flash Blu Selfie S470I Stock ROM Using Smartphone Flash Tool
1. Make sure you have the Android CDC driver installed on the computer that you plan on using the flashing tool on, so your Blu Selfie S470I device and the flashing tool can connect. (If you have already installed the Android driver on the computer, then you can skip to the next step; there’s no need to install it twice unless it has been deleted from the computer.)
2. Turn off the Android-based smartphone by holding in the Power button until it powers down, or by switching it off from the Power menu.
3. Download the stock ROM (firmware flash file) from the link above so the file ends up on your computer.
4. Open the stock ROM file location (usually the Downloads folder) and then extract it (right-click and choose “Extract” from the menu).
5. Now download and extract the Smartphone Flash Tool much the same way as you did with the Stock ROM file. (You can use the desktop as the save location to make things easier if you wish.)
6. Once the SP Flash Tool folder is extracted, double-click to open it and then double-click on the SP Flash Tool application.
7. The flashing tool interface will now open on the computer. From the SP Flash Tool interface, select the “Download” tab.
8. Next, click on the “Scatter-loading file” button.
9. Now browse through the hard drive to the location where you extracted the stock ROM and select the “scatter file” to upload to the flashing tool.
10. Lastly, click on the “Download” button for the flashing to begin.
You can also view our more detailed guide on how to flash a stock ROM with the SP Flash Tool that comes with screenshots if you prefer.
[*] Back Up Your Data: You should always back up your data before you begin flashing new firmware files to your smartphone or tablet. All of your pictures, music, videos, documents, etc. should be still on your device after you have updated the firmware, but you may need to restore the contacts and applications from a backup.
[*] Wipe Cache and Factory Reset: Some people claim that taking a factory reset isn’t necessary after updates, but at the very least you should wipe the system cache after installing new firmware. This way you can help eliminate any performance issues and battery draining bugs. Taking a factory reset is the best way of avoiding common problems many users face after applying software updates.