Related Videos: Lower Back Strain Video. Lower back strain is caused by damage to the muscles and ligaments of the back. Learn about muscle anatomy and the symptoms of lower back strain. Back Strains and Sprains Video. A muscle strain or a muscle sprain in the back is the most common cause of back pain. A muscle strain happens when the muscle is over-stretched or torn, resulting in damage to the muscle fibers (also called a pulled muscle). 2  A lumbar sprain happens when ligaments are stretched too far or torn. 3  Ligaments are very tough, fibrous connecting tissues that connect bones together.
The invalid SIM card error is typical of the type of error you get if your phone is locked to a different carrier than what you have. Many people offer unlocking service and typically charge between US $5 and $15 plus shipping to unlock your phone.he invalid SIM card error is typical of the type of error you get if your phone is locked to a different carrier than what you have. Many people offer unlocking service and typically charge between US $5 and $15 plus shipping to unlock your phone.
So, when clearing a SIM card, the objectives are: erase all SIM card data (not just SMS or phone-book); wipe SMS, to make it impossible to restore deleted SMS; automate the process, to remove the possibility of human error.The solution to this problem is SIM Manager 's Clear SIM card feature, it does all of the above in a few clicks.n these circumstances, you should erase SIM card data before giving the card to anyone. This includes wiping SIM contacts, the SMS archive, the list of last dialled numbers, own numbers stored on the SIM card.