Mac Tech PC Service Flower Mound - Denton - Lewisville iPhone MacBook Computer Repair

Flower Mound , Texas Apple iMac  Startup issue Troubleshoot & Diagnostics  iMacs are great computers , but are not completely immune to software or hardware issues. Most common and frustrating are the startup issues. Startup issues can occur on an iMac due to hardware or software problems. Some startup issues are caused by software corruption , while some can be caused due to hardware failure. Some of the most common startup issues are listed below: iMac Startup Issue Circle with line through it iMac  Startup Issue Prohibitory symbol iMac  Startup Issue flashing Question Mark folder iMac  Startup issue Options with a gear icon iMac  Startup issue Blank (empty) screen iMac  Startup issue Apple logo stuck screen    iMac  Startup issue Globe with warning symbol iMac  Startup issue Lock icon  iMac  Startup issue System lock PIN code iMac  Startup issue Freezing Login windows iMac  Startup issue Thunderbolt, USB, or FireWire symbol Some of the above issues are easily fixable , and some

Flower Mound , Texas Apple iMac  Startup issue Thunderbolt, USB, or FireWire symbol If your iMac displays a Thunderbolt, USB or FireWire Symbol during startup, it means that your iMac is in Target Disk Mode. When in target disk mode, you can access the contents of the hard drive of the iMac that is in target disk mode using another Mac, provided that the 2 Macs are connected with each other via  USB , USB - C or a thunderbolt cable. In simple words, once you enter the target disk mode on your iMac, it can be used as an external hard disk.  To enter Target Disk Mode,  When your iMac is off, press the power button while holding the "T" key on your Keyboard.  If your iMac is powered on, go to system settings, choose startup disk and select Restart in Target Disk Mode.  If you did not mean to put your iMac in Target Disk mode and encountered the screen with Thunderbolt, USB, or FireWire symbol , simply press and hold the power button until your iMac restarts. If you are still ent