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And when i checked the warranty All serial numbers of box,device and remote the warranty period for all starts at 11.25 and ends at 02.27

It's typically the same except for one no. And one letter.In addition , the seller was amazon it self and the device is new

I just need to know if that is normal?They already offered a return and replacement but this is last option for me.If that difference is normal and the device is genuine so no need to make a return

I really need help

To be clearThe difference in one letter and one number