[General Questions and Answers] Lusty Rugnuts:
How to change your boot logo on the Blu Life One X3

Open Total Commander

/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/

shows a link:

logo -> /dev/block/mmcblk0p9

This means your boot logo is in /dev/block/, named mmcblk0p9

On your computer, in an administrator-privilege command prompt, type the following commands:

adb shell

su

dd if=/dev/block/mmcblk0p9 of=/sdcard/logo.bin

exit

exit

You'll see a file (logo.bin) in /sdcard.

On your computer, in an administrator-privilege command prompt, type the following command:

adb pull /sdcard/logo.bin c:\test

In c:\test, you'll see a file (logo.bin). You can delete the logo.bin at /sdcard now.

Go to:

https://sites.google.com/site/kadanutilities/home/logobuilder-en

and download the Logo Builder program to c:\test. Extract the .zip file to a folder beneath c:\test.

Run Logo Builder v. 1.6. Click OK until you're at the main screen.

Click "Create project" and select your logo.bin in c:\test.

Right-click the first image (the white logo boot image with black lettering that says "Blu" and "Bold Like Us" and "Powered By Android"), and select "Edit".

The image will load into your image editing program (Paint works just fine for this).

In my case, I wanted to invert the image colors so the background was black and the lettering was white. This required cleaning up a lot of scattered pixels around the text.

So I filled the white background with red, then cleaned up the scattered pixels which remained white so they were red as well.

Then I changed the black lettering to white. I had to clean up more pixels.

Then I changed the red to black.

The very last image in the list inside Logo Builder v. 1.6 is a duplicate of the first image. Edit that one, as well. I merely copy-n-pasted the first image into the clipboard, then edited the last image, then selected all, then pasted from the clipboard.

If you want a smaller image file size, compress the two .png files with any online image size reducer website. My originals were 15KB, the reduced files were 4KB. Note that this doesn't change the physical size of the images, just the file size... it just removes extraneous stuff from the image to make the file smaller.

In the Logo Builder v. 1.6 program, click the "Make" button. In c:\test will be update.zip.

Extract logo.bin from update.zip and save it to c:\test

On your computer, at an Administrator-privilege command prompt, type:

adb push c:\test\logo.bin /sdcard

adb reboot recovery

The phone will reboot into TWRP Recovery Mode.

Select "Mount".

Select all partitions, and ensure "Mount system partition read-only" is unchecked.

Click the "Back" icon to the main TWRP screen.

Press "Backup".

Press "Select Storage" and select the SD card.

"Swipe to Backup".

When the backup is complete, press the "Back" button, then the "Back" icon to the main TWRP screen.

At an Administrator-privilege command prompt, use ADB pull to pull the new backup to your computer.

adb pull /sdcard/TWRP/BACKUPS/{DEVICE SERIAL NUMBER}/{NAME OF BACKUP} c:\test

Then on your phone, at the main TWRP screen, press "Reboot", press "System". Let the phone boot normally and settle down.

Then push the new logo.bin from the SD card to the correct location:

adb shell

su

dd if=/sdcard/logo.bin of=/dev/block/mmcblk0p9

exit

exit

Then reboot the phone:

adb reboot

Now you can remove logo.bin from /sdcard.

You're done!

The charging animation images work when the phone is shut down and connected to USB.

[IMG="Blu Life One X3 black-themed boot logo"]https://imgur.com/zUeYtjf.png[/IMG]