I have a Samsung Galaxy Pocket Neo (Model GT-S5310B) running Android 4.1.2
The device is not rooted and the update notifier tells me I have the latest available version installed.
Today I tried encrypting the device (I did a full encryption). The encryption went smoothly and with no problems, but during boot up I noticed that the device only asked for the decryption password to continue.
My SIM card is password protected, and every time I restart or power up the device it first asks me the sim card password and THEN asks me the device password.
At first I thought that, as my device is now encrypted, the prompt for the sim card would come later. But as I logged in, I noticed the notification icon telling me that there was no sim card pluged in, and indeed, any option related to telephone would yield the same notification "Please insert a SIM card".
So I decrypted my device and thankfully, everything is back to normal.
My question is: Why does the device encryption make it not detect my SIM card?
I might also add that I maintained encryption on my removable memory, it doesn't seem to affect the SIM detection, only the encryption of main memory affects the SIM card detection.