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It should be that the screen cable is loose, take the screen frame apart and take a look, it is best to plug in the screen cable.
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If the screen cable contact problem is in contact, the screen cable plug is more likely.
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If you fall into poor contact, disassemble the back shell and reinsert the parts.
Observe the baby, if the baby is in good spirits, it generally doesn't matter if you don't cry, if the baby is drowsy and nausea, you have to go to the hospital to see, my baby often falls, but after picking it up, it will be good to coax for a while. Take a look at the baby first, it generally doesn't matter.
It's normal for children to bump into each other.
It can be smeared with "lard - the oil of pig fat" to reduce swelling. >>>More
Probably not. That's what my friend is.
Almost all babies have fallen out of bed or on the sofa, and all of them have suffered head trauma, which is generally not significantly affected, and a few may have concussions. >>>More