Oh and the RAM is used mainly by SYSTEM processes running in the background which are showed by "Battery Doctor" and can not be stopped in the normal way. Any idea? I think those processes result from the ios 6.
View the Correct Answer Since upgraded my 4s to ios6 apps keep shutting down unexpectedly and quite often. then check free RAM available in my phone by using app Battery Doctor and find out free RAM only 5 to 10 MB. Can suggest anyway can fix this in Answer iPhone Question , iPhone 4S Faq↧