Note II stuttering, lagging and turning off when locked.
Bought this second hand Note II (NO WARRANTY) which had a 'modified' status, I first used this guide to remove that status and reset the binary counter and remove the root- http://forum.xda-developers.com/show....php?t=2339704
Ever since I have done this my Note 2 has been experiencing issues, these issues consist of noticeable lag(when starting up the Samsung start up logo lags) and this is most noticable in the camera when moving it fast it lags up (see video), also when locking the device it sometimes shuts down and to restart it I have to hold the power button. I have another Note 2 next to me with everything stock and this one does not have these issues.
Now, I have flashed stock firmware onto the device several times in an attempt to fix this problem, I have also flashed a Custom ROM (Omega) onto it in an effort to resolve my issue, to no avail. I have also cleared the cache, reset to factory settings through the Android menus and Recovery mode, I have also tried to find out if it is an issue such as SDS(sudden death syndrome) I have followed this guide in an attempt to fix it (http://www.roytanck.com/2013/06/04/n...eath-syndrome/
) and I have now found out that my note 2 has an insane chip.
Honestly this whole ordeal is driving me mad, but I dont have a spare phone until I sort this out so im here for the long haul!
EDIT: It was working fine, before I attempted to remove the modified status.