Android Device not Working: How To Fix Black Screen Problem (the best way!)
The most common reason for a android cellphone's screen to go black is a simple hardware failure. This can be caused by the actual LCD going bad, by the cable that runs between the LCD and control board going bad .
How do I fix my black screen?
1st method-ReiBoot for Android-
the free version can't help https://www.tenorshare.com/products/r... (failure)
2st method-dr fone-
the device must enter to download mode. This usually cannot be done. https://www.wondershare.com/android-d... (failure)
3st method – MTK Droid Tool https://androidmtk.com/download-mtk-d... (the best way!!)