You are very lucky that this didn't work, you would have bricked the device if it did.
In order to restore the stock firmware bootloader, you have to write not only bl2, but at least also bl3/u-boot, otherwise you end up with a brick for sure.
You are very lucky that this didn't work, you would have bricked the device if it did.
In order to restore the stock firmware bootloader, you have to write not only bl2, but at least also bl3/u-boot, otherwise you end up with a brick for sure.