I bought the bag a few months after the purchase of the F10. It worked flawlessly until then. Since then, I kept the Navi always on it. After a few weeks, the navi was broken, there lies no longer turn on. It has been replaced under warranty because it was not repaired. The new Navi then I put back into his pocket. It was a short time later broken! The same error image! I suspected at that same time, which could be responsible of the magnetic closure of the pocket for the destruction of the device. But since I could not imagine that an original accessory may damage the unit, I put it back in his pocket. After a short time it was broken again !!! That's no joke! Again the same error image. After a further exchange on guarantee I no longer dared to put the navigation into the pocket. Since then, it works flawlessly and I always carry it with no bag around with me, which is obviously not as nice as the risk that it will be scratched in your pocket, is relatively high. The whole process is now back about a year. Whether the bag was the cause of the defects, of course I do not know, but all the evidence.
