Look for a custom ROM online for your model, flash that using a computer. Keep in mind that those don't always work perfectly, you may lose some features or even major functions like no data or not being able to make calls or something.
Look for a custom ROM online for your model, flash that using a computer. Keep in mind that those don't always work perfectly, you may lose some features or even major functions like no data or not being able to make calls or something.