The pusher of the power button of the mobile phone may fall out when dropped or lost during repair. The button itself may also fail. As soon as the battery runs out, the phone turns off. To turn it back on, you have to fix the button or use a surrogate pusher.
Instructions
Step 1
Take a look for a slightly convex metal plate or flat plastic button just below the hole where the pusher used to be. Take a small screwdriver and press down on the plate or button without using too much force. If you press too hard, the button itself will fail. Keep it pressed for a few seconds - until the phone turns on.
Step 2
Finding that the phone does not turn on when you press the button (regardless of the presence or absence of a pusher), disconnect the charger from the device, remove the battery, SIM card and memory card. Disassemble the phone using the dedicated screwdriver set. With ordinary slotted or Phillips screwdrivers, you can irreversibly tear off the screw slots, after which disassembly will be very difficult. If you have never disassembled a mobile phone before, especially a folding or sliding design, perform this operation for the first time under the supervision of an experienced technician. When disassembling, be sure to put the screws in a jar or attach to a magnet.
Step 3
When you get to the power button, carefully unsolder it. Get another one that has the same lead spacing and a similar height. Solder it into place quickly - the plastic parts of such buttons melt from overheating. Reassemble the phone in reverse order, replace the SIM card, memory card and battery. Check if it starts to turn on.
Step 4
Unable to obtain a suitable button, solder two thin insulated wires to the corresponding contacts and lead them out. Now, to turn on the phone, you need to close these conductors for a few seconds, and then open them again. This should be done with the charger disconnected - although the probability of leakage in it is small, it is present.
Step 5
If the power button in the phone is combined with the end of the call button, and the device itself is folding or sliding, the cause of the malfunction is most likely not the button itself, but the loop. To replace it, the mobile phone will need to be disassembled in the same way as for replacing a separate button. The cost of the loop itself depends on its design: it becomes noticeably higher if it is made as a single unit with a speaker or a front camera.
