I'm currently trying to hard-brick my phone. Yes, you read right. The reason doesn't really matter. I tried flashing wrong recovery/ROM but no success. I could easily recover the smartphone afterwards through SP Flash Tool and MTK Droid. It's about a Gionee P6. I can't flash a kernel because it doesn't allow me, the process of flashing ending with error each time. Any suggestions?
You can easily root the phone (or do this in a working recovery) then run the following command in a shell:
dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=1
Do note that unless you destroy a piece of hardware, a professional engineer can always recover it with special tools.
See this answer of mine: Using ADB, what command can I use to break/permanently destroy a Galaxy S5?
It's an MTK device. You can easily hardbrick it using SP Flash tool.
Format tab. On
Auto Format Flag , click on
Format whole flash. This will format the eMMC memory leaving practically nothing, not even the preloader.
Now click on
Start. Power off the phone then connect it to the computer. Wait a few seconds.
PS: One can still bring it to life using special tools though.