Apple 6splus has a white screen, a black screen and a blue channel.

iphone6 sp white apple should distinguish between motherboard problem and system problem.

1. System problems can be solved by forced restart.

at the same time, press and hold Power+? Home button, release it after the black screen appears? Home button? The white apple Logo will appear within a few seconds after the Home button is released. At this time, do not release the Power button, and wait until the white apple Logo disappears and the screen is closed to complete the shutdown.

2. Motherboard problems can only be solved through maintenance

Motherboard maintenance should pay special attention, and don't replace the whole motherboard as soon as you hear that it is broken.

it costs 23, yuan to change the motherboard. In fact, many problems are caused by individual chip failures.

just change the chip, and one chip 2 will be available.

The following picture is a picture of the motherboard taken when servicing customers, for your reference.