1. System needs a reboot
It could be due to the device’s software crashing. First, try to reboot your phone by holding the power button and home button together for at least 10 seconds.
2. Carrier lock
It could happen because the device is carrier locked, where certain devices are locked into using only one carrier i.e. Tesla, Optus or Vodaphone. You can solve the problem by contacting the carrier to unlock your device.
3. Sim card needs to be replaced
A damaged sim card could be the reason for your problem. You can solve this by replacing the sim card.
4. Setting need restoring
If the problem continues after the reboot, it is necessary to restore the device’s settings. Follow these steps:
Settings > General > Reset > Reset all settings
This is the process to initialising all settings of the device. This means that the settings information stored in the device will be reset to the initial settings. Data such as contacts, photos and apps will remain intact.
5. Need to restore device
The next option is to restore your device to factory settings. There are 2 ways to restoring your device. If your device is still working, please follow the following steps:
Setting > General > Reset > Erase all content and settings. This is the process of restoring your device to factory settings. WARNING – this will erase everything on your phone. Only do this if you have just backed up your phone.
If you want to restore via iTunes, do the following steps:
Connect your device to iTunes.
Turn off your device.
Hold the power button and home button together until you see the iTunes icon.
Now, you can find an iPhone in recovery mode on your computer.
Click to restore (do not disconnect the iPhone before finishing the installation of new firmware)
6. Mainboard damage
Another possibility is mainboard damage.
Q: What is the mainboard?
A: The mainboard (motherboard) is the core part of the hardware and controls all functions of the phone. Every part of the phone with a function is connected to this mainboard.
Q: How can the mainboard gets damaged?
A: The mainboard can get damaged from shocks (drops), dropping into water or even from pressure. It can also be caused by charging with a poor quality charger/cable. Damage to the mainboard can arise even if there is no physical damage.
Q: What happens when the mainboard is damaged?
A: As the mainboard is the core part of the device, once it’s damaged, it can make functions play up. The functions affected depend on the location of the damage.
Q: How do I know if the signal problem is caused by damage to the parts (sim card) or mainboard?
A: There is no way to physically find out if the mainboard got damaged or not unless you test the device with a new part and see if it is working or not. With this matter, we can help you through a quick inspection and can tell you if it will be solved by replacing the part or not.
Q: What should I do if it is a mainboard damage?
A: If it’s a mainboard issue, don’t worry. We can fix this issue at Happytel. Most signal problems arising from the mainboard can be repaired by micro soldering in our Happytel Head office. Our success rate for this procedure is 75%.