Originally Posted by

**awesome777** Thanks. I knew there that phones can have different models, but I thought the 650 had only the two.

So how many models of the 650 ( single or dual sim) are there in total?? Thanks

From all practical purposes, there are only two - single and dual sim variant.

If you are asking for "RM-xxxx" variants, then there are 4, one for dual sim, three for single sim. They are divided by regions, e.g. North/Latin America, Europe/Africa/Asia, Pacific area.. And each of them is again divided by "Product code" based on individual countries or group of countries.. That is why there are so many firmware variants and why it sometimes takes such a long time to receive update on all phones..

But this is quite standard with all phones, for example, there are 5 RM variants of 950/XL Single/Dual and 14 variants of 640/XL Single/Dual..