I have samsung galaxy Y s5630 and when i try to update it through Kies, it says "Your device's current firmware is not supported to update firmware via Kies", I have 2.3.6 firmware. When I try to update my phone through the mobile itself, because a firmware update is available, it downloads the update and reboots the phone to install the update then it says "Update unsuccessful, use Kies or any other software to update you device". Does anybody have a solution for this?