This can increase friction!
(2) inject a small amount of 502 glue into the screw hole, and then screw in the screw.
After the glue is solidified, screw out the screw with needle-nosed pliers (just because you don't need a screwdriver, for fear that the screw will slip again).
Wait until the glue is completely hardened. Be careful if this operation is difficult. )
(3) If the nut is exposed, you can tighten the nut with needle-nosed pliers and unscrew the screw.
You can also cut off the nut and disassemble the shell before handling >>& gt You have to be professional!
(4) Generally, the screws of mobile phones are metal and the shell is plastic. When they cannot be unscrewed,
You can insert the pointed welding head into the nut, heat the metal screw to melt the plastic around the screw, and clamp it with pointed pliers.
Pull it out gently! You can also press the screw down about 1mm (be careful not to break through the casing), and the problem of screw loosening can be solved.
(I haven't experimented, I saw it online! )
(5) Such a small screw is really difficult to fix. My dad used to repair bicycle screws by drilling a shallow hole in the middle of the flower screw with a small electric drill, and then screwing it in with a reverse thread tap (it must be a reverse thread tap, which is difficult to find, and you have to go to a big measuring tool shop), so that you can screw it off. ]
(6) Drill it off with an electric drill.
(7) Burn the screwdriver head on the gas stove, then press it on the screw quickly, wait for about 5 seconds, and then screw it out.
(8) After heating with an electric soldering iron, put it on the waste screw head for a long time until the screw can be turned. You can find some waste products to practice your hand first, which is the safest way to remove them.
(9) The flat-head screwdriver grinds the edge and starts to twist. . . .
(10) The molten solder hangs on the welding torch head. After the screwdriver and the screw are aligned, the solder lights up, and the temperature is lowered and unscrewed.
(1 1) Then knock off the gong cap with an electric drill. Use the principle of reverse thread to drill out the remaining screws (you can use a special drill for broken screws-broken screw puller).
(12) Maintenance personnel use a large screwdriver for three times, five times and two times. He told me that the use of screwdriver should be changed from small model to large model. Of course, I didn't ask you to change the screwdriver often, but it was easy to spend too much at first and too little at first. The big screwdriver appeared after the screws were used up.
(13) Pull it out alive with tiny needle-nosed pliers ~
(14) I took the machine to BE today, and an old master of BE told me a method: burn the solder onto the slipped screw with a soldering iron, then dip the screwdriver in it, and then rotate it when the solder is dry. My screw was slippery and it took me several times to succeed. The master told me that under normal circumstances, it can be unscrewed at one time.
(15) The newly discovered super Dafa Haha repeatedly carves the screws with a knife until the cross screws are carved into straight screws, and then they can be disassembled, which takes about 10 minutes.