i have an Samsung Galaxy S4 LTE (i9505) with stock rom + root (4.2.2 ME2 build).
i have issues from time to time with Bluetooth pairing. It stopped working a few months ago, then started working again by itself, then last month stopped working again.
When is not working , i have this issue when i try to pair a new device (the problem is with devices that have PIN code, the one without, pairs successfully) : it shows the 'Enter PIN' dialog, but when i finish it doesn't start pairing, it does nothing.
It would be great if somebody finds the problem in the log, because if i can fix it without restoring/changing ROM would be great!