"Why won't my flash button work?"に関する回答There may be some debris stuck around your flash button itself. Try blowing on it or removing it gently with a cloth. If this does not work, try replacing the flash using this guide.
"Why won't my camera turn on?"に関する回答The simplest reason for this problem is an issue with the battery and charging system. Make sure you are using the proper USB charger and cord and they are not malfunctioning or damaged. If everything is working normally there may be an issue with your battery, which you can replace by opening the battery compartment.
"Why won't my zoom lens work?"に関する回答There could possibly be debris stuck in the crevices of the zoom lens. Try blowing on this part of the camera or gently cleaning it with a cloth. If this does not solve your problem, there may be an issue with the motherboard. To replace the motherboard, you can follow this guide.