螺丝头上放双面胶带、无纺布之类的东西。如果没有条件，也可以用纸，可以增加摩擦力!在螺孔中填充少量502胶，然后拧入螺。胶水凝固后，用尖嘴钳拧出(不使用螺刀的原因是螺打滑)。只有胶水完全变硬了。(这个操作难度大的时候要小心。)如果螺帽外露，可以用尖嘴钳夹住螺帽，拧下螺。 也可以切掉螺帽，拆开外壳再处理。一般手机的螺是金属的，外壳是塑料的。当无法拧开时，可以将尖头焊头插入螺帽，加热金属螺使螺周围的塑料熔化，用尖嘴钳夹住，轻轻拔出!也可以用力向下压螺1毫米左右(小心别把机壳搞穿)，就可以解决螺松动的问题了(没实验过,网上看到的!)
Put double-sided tape, non-woven fabric and other things on the screw head. If there are no conditions, you can also use paper to increase friction! Fill a small amount of 502 glue in the screw hole, and then screw in the screw. After the glue solidifies, screw it out with pointed nose pliers (the reason why the screw knife is not used is that the screw slips). Only the glue has completely hardened（ Be careful when this operation is difficult.) If the nut is exposed, clamp the nut with pointed nose pliers and unscrew the nut. You can also cut off the nut and disassemble the shell for further treatment. Generally, the screw of mobile phone is metal and the shell is plastic. When it cannot be unscrewed, insert the pointed welding head into the nut, heat the metal screw to melt the plastic around the screw, clamp it with pointed nose pliers and gently pull it out! You can also press the screw down by about 1mm (be careful not to break through the casing), which can solve the problem of loose screw (no experiment, I saw it on the Internet!)
那么小的螺的确不好弄,(修自行车螺的方法)用小电钻在弄花的螺正中打一个不深的孔，然后找一个反丝的丝锥拧进去(一定要反丝丝锥，很难找，要去大的量具刃具店)，就可以拧开了用电钻反螺钻掉吧.把螺刀的头部分在煤气灶上烧红,然后迅速顶在那个螺上,略等5秒左右,这样就可以拧出来了
It's really difficult to get such a small screw. (the method of repairing bicycle screw) use a small electric drill to make a small hole in the middle of the flower screw, and then find a reverse screw tap to screw it in (it must be a reverse screw tap, which is difficult to find. Go to a large measuring tool and cutting tool store), you can unscrew it, and use an electric drill to drill it off. Burn the head of the screw knife on the gas stove red, and then quickly push it on the screw, Wait about 5 seconds so you can screw it out
用
扭剪扳手的电烙铁加热后放在花掉的螺头上时间不要太久，直到能拧动螺为止，先可以找一些废品练习一下手感，这样拆保险平口螺刀磨出刃，开始拧。。。。
After heating with an electric soldering iron, put it on the spent screw head for a short time until the screw can be screwed. First, find some waste products to practice the feel. In this way, remove the safety flat mouth screw knife, grind out the blade and start screwing....
融化的焊锡挂在焊枪头上,将螺刀和螺钉对好后,将焊锡点上去，降温开拧用钻头将锣帽打掉。利用反丝的原理将剩余的螺钻出(可以用断头螺专用钻头--断头螺取出器)
Hang the melted solder on the head of the welding gun, align the screw cutter and screw, spot the solder, cool down and turn it on, and knock off the Gong cap with a drill bit. Use the principle of reverse thread to drill out the remaining screws (you can use the special drill bit for broken screw - broken screw extractor)
告诉我一个方法:用烙铁把滑动螺丝上的焊料烧了，然后把螺刀粘在上面，等焊料干了再旋转。我的螺钉很滑，所以我做了几次才成功。老人告诉我，正常情况下，可以一次拧开。新发现用刀反复刻螺，直到十字螺刻成直螺，然后就可以拆了。
Tell me a way: burn the solder on the sliding screw with a soldering iron, then stick the screwdriver on it, and rotate it when the solder is dry. My screw is slippery, so I did it several times. The old man told me that under normal circumstances, it can be unscrewed at one time. The new discovery repeatedly carves the screw with a knife until the cross screw is carved into a straight screw, and then it can be removed.
