Located inside the device housing, the Logic Board (also referred to as Motherboard) is the epicenter of all functions of the device from simple phone calls to the intricacy of running various apps.
What happens in the case of a malfunction due to the Motherboard (Mainboard)?
In the occurrence of a malfunctioning or faulty Motherboard we have the option to repair it as every Motherboard is specific to your device model and not interchangeable., hence avoiding the cost prohibitive option of replacing it with a brand new one which is also not always possible for certain devices if we want to retain all functions of the specific device, i.e. fingerprint sensor.
Listed below are some of the most common issues that may derive from a faulty Motherboard and how you may be able to recognize them:
If your device has been directly exposed to water/moisture we recommend immediately powering off the device to avoid having it short circuit and prevent any further damage. You are welcome to visit one of the xFix service centers where a thorough cleaning and inspection of the device can be performed.
Another common problem (iTunes error 1) may show up on your device as No Service, Searching, Missing Modem Firmware in settings, Dropped calls or sudden corruption or ceasing of Audio during a call.
This problem occurs if you deal with touch issues and it is not the screen responsible for causing them.
Typical indications of this motherboard failure are:
– squares appearing at the top of the screen
– when the screen does not respond correctly to your touch during use or doesn’t respond at all
– the appearance of vertical or horizontal lines on your screen.
It’s Audio IC failure when you are dealing with glitches to some or all sound functions of your device. For example, when you hear a creaking sound, or when during a call, the function of microphone and loudspeaker are interrupted, nonrecurring or simultaneously.
If your device is dead, when it doesn’t charge or if it can’t revive even after a new battery replacement.
A known problem with charging that occurs frequently with several symptoms:
– when your device has no power and does not respond when plugging in
– when USB connection to a computer is erratic or non-existent
– when the device charges only when the phone is powered off, but not when it is powered on
– when the device only charges from the one side of the lighting cable
– “Accessory Not Supported” comes up on the screen
When the device is not charging and the problem is not detected in the USB charging management circuit.
We are dealing with this motherboard failure when you have a weak signal and when it returns, you receive at the same time all the lost calls. There is also the case where you see that we have a signal, but you do not receive any calls and messages.
When your device is fully functioning (vibration, sounds) but you can’t see anything on your screen.
We are dealing with this motherboard failure if your screen’s brightness is very low.
We are dealing with this motherboard failure if there is no image at your cameras or when cameras and flash simultaneously stop functioning.
This failure is indicated when your wifi can’t be activated and the indication remains gray or when the signal is weak.
Long Screw Damage
In case someone places wrong length screws when installing the screen shield, he can breach and inevitably destroy the motherboard’s traces under the screen. This may cause malfunctions or cause the device to die. A rather difficult and complex repair with a shared chance of success.
When the battery connector on the motherboard is broken, you device opens only while charging, and then restarts.