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At
eTech Parts we offer free tech support to customers during normal business hours, which allows our
wholesale customers to utilize our industry knowledge and technical know-how. David is our in-house technician and when he hears certain issues becoming recurring problems, such as the
iPad Mini Ghosting issue, we'll write a blog or release a troubleshooting video to spread awareness to the
Repair Community.
Starting a few weeks ago David began receiving numerous calls from customers who were encountering component failures while repairing the
iPhone 5/5s/5c and
iPad Air - there was no specific reoccurring failure, sometimes it was the
backlight coil, other times it was an unknown logic board component. After going through the basic troubleshooting steps, trying different screens and replacing several other components, there was still nothing we could suggest that would resolve our customers' issues.
Unfortunately at that point, there's a chance something on the logic board has been damaged that requires more than a simple part swap. Some customers even speculated about a feature of iOS which essentially causes the device to “hibernate” instead of shutting down when “Powered Off.” That is until the battery is fully removed - spelling trouble for technicians who don't unplug the battery prior to performing a repair. This greatly improves boot up time, however the consequence is damage during repair when the battery remains plugged in.
You should always remove the battery prior to repairing a device.
After hours of research and speculation, we called our friend Ally Kazmucha of
iMore and asked if she knew anything about the issue. She verified this specific feature of iOS, which is designed to increase boot speed by putting the device into a "hibernation mode" instead of a full shutdown. This means some components could still be receiving power from the battery even though the device appears to be fully shut down. She warns technicians against repairing any component while the battery is still connected to the logic board.
Failing to remove the battery from the logic board prior to a repair can result in electrical overload damage. This damage may not occur, it may effect only one minor component, or it can cause catastrophic damage. Our advice is, “Don’t risk it, unplug it!"
Thanks for reading and be sure to let us know if you've encountered this problem and how you fixed it. Do you take extra precautions during repairs to make sure no electrical damage is done to the logic board? Let us know in the comments below, as always we love hearing from you! Thanks for reading and if you haven't already liked our
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