Samsung SPH-i550 i550 is offered by any carrier in the United States. Just weeks after Sprint canceled the phone, it was announced that the SCH-i539, a Palm OS-based smartphone by Samsung that is very similar to the i550, was available in China. The i539 is nearly identical to the i550, except that it uses a CDMA Removable User Identity Module (R-UIM), which is similar in function to a GSM SIM card. Evidence on the Samsung Website indicates that a carrier in Mexico is in trials with the i550. The devices being tested all have the Sprint logo. A petition asking Sprint to
Samsung S2 T-Mobile, Galaxy S2 Epic 4G, Galaxy S Showcase, Droid Charge and Galaxy Prevail) in the United States which has been denied by the court. In 2015, Samsung has been granted more U.S. patents than any other company - including IBM, Google, Sony, Microsoft and Apple. The company received 7,679 utility patents through 11 December. On 2 August 2016, Samsung Electronics unveiled the Galaxy Note7 smartphone, which went on sale on 19 August 2016. However, in early September 2016, Samsung suspended sales of the phone and announced an informal recall. This occurred after some units of the phones had batteries