Factory unlock code of the Samsung devices are available. Means, if your phone/tablet is asking for unlock code as described in the post then it can be unlocked easily. There are various services for Samsung, some are limited to a specific country and some are worldwide, while a few services are continent based. So, before placing an order choose the appropriate service.
Before placing any order, you must change the sim and check that your phone is asking for “sim network unlock pin” and attempts are left to enter the code. If no attempts left or your phone does not prompt for unlock code, don’t place the order.