According to a recent report, Samsung rushed the recall of their Galaxy Note 7 handset and this meant that the issue was not fixed and the handset had to be recalled a second time and then cancelled.
Samsung originally though that the issue with the Galaxy Note 7 was to do with batteries produced by Samsung SDI.
Some of these batteries had a protrusion whilst batteries from other companies did not, so Samsung apparently thought that this was the issue with the handsets without proving it.
Samsung then decided to recall the Galaxy Note 7 and replace it with new devices from a different supplier as it thought that there were no issues with these batteries. Unfortunately for the company there will still problems with the handsets and some caught fire.
This meant that Samsung has to recall the handsets again and then cancel them as consumers had now lost confidence in the devices. To be fair to Samsung, they did the right thing by cancelling the handset after the second recall, to release a third device would not have been a good idea.
Samsung is till investigating what is wrong with the Galaxy Note 7 and why some units of the device caught fire, the have said that they will share this information when they have it.