Before we jump into the topic of iphone vibration problems, we should take a look into the history of the iphone and how the vibration module was implemented and the reason that they may fail.
iPhone 1 to iPhone 4 Models:
From the first generation iPhone to the newer iPhone 4, all models used a standard motor-based counterweight style vibration technique. The vibration device is made up of several components, a small motor which spins a cylindrical weight with a section cut out to cause an imbalance. This imbalance in turn causes vibration and thus gives the necessary shaking momentum.
When the iPhone 4s was released, apple changed their internal vibration device slightly. From the traditional motor-setup as discussed above to a more compact solution. The device used is called a linear oscillating vibrator. The linear oscillating vibrator is a much nicer device, that creates a smoother and quieter vibration whilst still ensuring more accuracy.
However, for reasons that are unknown apple decided best to revert their changes to a linear oscillating vibrator when the iPhone 5 was built in late 2012.
The iPhone 5 reverted back to the older, less accurate standard motor and counterweight method.
Although the iPhone 5 has the old style-vibration techniques, it means that they are generally easier and cheaper to replace or fix in the case that it breaks.
Common iPhone Vibrating Problems Case Study:
My iPhone will not vibrate!
Generally the cause of your iphone not vibrating correctly will be a loose connection or that the motor has burned out, or otherwise malfunctioned. The easiest solution to this is to purchase a new part that you can either fit yourself or take to a apple authorised repair center to fix the phone vibrator.
My iPhone 4 keeps vibrating and wont stop!
This is an error that was found in a small percentage of mid-run apple iphone 4 g devices. Please see the video below for more information about this error.
Using an iPhone case is the best way to ensure that your investment is protected against shocks and impacts that may possible cause loose connections to the vibration components inside the phone. If you are wanting more information on the Best iPhone Cases to purchases, I suggest that you check out Accessory Empire for a large range of cases at a great price.
For more information regarding the process of creating a vibrations such as those inside an iphone and Vibrating Tables, you should take a look at How to Build a Vibrating Table, which enables you to see how the vibration is made and thus give you a better understanding. The DIY Vibrating Table Plans, give you an inside look at what causes vibrations inside iphones and other mobile devices.