one more update regarding mu7000rxmm...downloaded firmware update1144 from uae site for model us55mu7000kxzn and it updated my tv just fine without any problem old software was 1122 or 112* something like that.i dint check for firmware update but i usually do that after sometime but last i remeber when i tried doing that on tv it said tv has been updated to the latest firmware already but tomorrow i searched it o net and as theres no info regarding mu7000 on samsung.pk of any kind so i went to uae website because their and our models are same and i downloaded firmware from there though it was for mu7000kxzn but it updated mine mu7000rxmm just fine without any issues through usb
i also downloaded firmware from us website for their mu7000 but as expected it wasnt recognized by my tv
difference i have noticed so far is i think now brightness is a little more may be i am wrong and that may be just my perception but i find it a little more brighter thn before...i,ll update regarding any new feature or difference if i found any ther thn this
you can download mu7000kxzn firmware from samsung uae website and unzip it in root folder of usb this way u can update it to the latest firmware without any problems(but do it on your own risk because this update was for mu7000kxzn i tried my luck and got lucky but there is possibility that it can go dead)