[redirect|https://www.ifixit.com/Troubleshooting/i...]
| Problem (Symptom) | Likely Cause | What to Check |
| Won't Turn On | Battery Discharged | Charge iPhone for at least 10 minutes |
| Won't Turn On | Firmware Crash | Perform a forced restart to fix firmware crash |
| Won't Turn On | Bad Battery | Check if iPhone turns on when plugged; battery may be degraded |
| Speaker Issues | Volume Turned Down | Turn up the volume using the button or through the phone's software |
| Speaker Issues | Phone Case Obstructing Speaker | Remove the case and test the speakers again; remove screen protector if it obstructs the earpiece speaker |
| Speaker Issues | Software Glitch | Turn off Bluetooth, perform a forced restart; rule out software issues |
| Speaker Issues | Broken Receiver | Check if sound issues are during calls; utilize Apple's service program or follow the iPhone 12 Earpiece Speaker replacement guide (Note: FaceID may be disabled) |
| Speaker Issues | Broken Speaker | Clean speaker holes; if ineffective, follow the iPhone 12 Loudspeaker Replacement guide |
| Unresponsive Screen | Operating System Freeze | Perform a force reset |
| Unresponsive Screen | Broken Digitizer | Replace the entire display assembly; follow the iPhone 12 Screen Replacement guide |
| Text Problems | Software Glitch | Restart the phone; reset network settings; toggle iMessage and MMS settings |
| Text Problems | Network Hangup | Reset network settings; toggle iMessage and MMS settings; contact service provider if necessary |
| Camera Not Working | App Malfunction | Use default camera app; close background applications; restart phone |
| Camera Not Working | Camera is Obstructed | Ensure the lens is not blocked; clean the lens with a microfiber cloth |
| Camera Not Working | Software Outdated | Update iOS; turn off VoiceOver; fix Flash Desynchronization Glitch; perform DFU reset |
| Camera Not Working | Broken Camera Module | Follow the iPhone 12 Rear-Facing Cameras Replacement guide |
15条评论
Iphone12 unable to connect to carrier, how do you trouble shoot for this issue. NONE of the simple fixes work, reset, airplane mode on/off, restart, update software, clean SIM card, etc. Apple said the phone is bad, but did not indicate what part is bad. Now what?
penny - 回复
I am currently working getting an iPhone repaired. The problem is the display won’t show anything and there is no visible damage to it at all. I have replaced the battery and when I touch the cover of the display cable it is fairly warm. What could be the issue
Gibson Marshall - 回复
Excellent article ! Thanks a ton - it has been a lifesaver for the iPhone ! Especially on the note on what to do if it is a firmware crash.
Raj Kumar S - 回复
I have issue with face recognition not working
sanad alshehhi - 回复
Como desbloquear un iPhone si me lo encontré en la calle pero esta bloqueado
Smg1 - 回复
Can anyone tell me how to fix this? It’s the internet, I had to take a picture from my iPad to show you because when I took it from my iPhone it will disappear. It happens on still photos and videos.
Well, I thought I could upload a picture.
Michelle Hazelrig - 回复
iPhone -12 Suddenly pink colour glitch but touch is working solution
Ashish - 回复
I have issue with wifi, Bluetooth and mobile hotspot not turning on
Takudzwa Kamanga - 回复
Problem with connection
Johan Oosthuizen - 回复
General connection problem
Johan Oosthuizen - 回复
ik kom net terug van mn iphone12 op te halen,want die was gevallen en had geen ontvangst meer van de wifi.
" weken gewacht en eindelijk gsm terug,MAAR ik was nog niet goed thuis begon mn gsm raar te doen ging uit aan uit aan !
heb ik dadelijk gemeld aan de reparatie winkel,mocht hem terug brengen..met alle gevolgen vandien, DEED MN GSM NIETS MEER!!! ging niet meer aan!! zo teleurstellend dat ik was . WILDE DIE VAN DE WINKEL MIJ EEN EEN BEKRAST TOESTEL IPHONE 11 GEVEN OF EEN SAMSUNG A10!! hij bleef maar aandringen en proberen me om te praten kost wat kost wilde hij mijn iphone12 houden..
TENSLOTTE NAM IK DE BESLISSING DAT IK GEWOON MIJN KAPOTTE GSM TERUG WILDE EN 170 EURO ... NEEN ZEI DIE MAN IK GEEF U DE KUZE OM EEN ANDERE GSM TE GEVEN,maar u geld krijg je niet terug!! dus wat nu,geen gsm men centen kwijt die geef ter nie terug.. IK BEN RADELOOS EN HEEL TELEURGESTELD PFF
Sonya Abela - 回复
Since 17.2 update Face ID not working on all apps.
Paulr. - 回复
My I phone has ceased working. The screen has gone pink and phone will only turn off for a few seconds. I believe it’s a 12 model.
Susan - 回复
Oh, it turns on and off
Adil Rahaoui - 回复
Help , my I phone has just stopped working although it’s showing the Apple logo in the center of a black screen, I can’t switch it off or do anything with it as it’s totally unresponsive 🧐
Johnny pohnny - 回复