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Please add my SI number (1248-9962) on the ICS update table soon. I have been following the SI numbers thread since last month.
I have a question - Does my SI number remain the same 'cause I had installed a ftf file with different SI number from the xda-developers forum.
Mine is 1248-9962.
Please answer my question.
(Pardon my bad English)
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This might give you an idea
this is an official answer
http://talk.sonymobile.com/message/211536#211536
When we added this important note to the bottom of our blogpost, we answered your question: *The availability and scheduling of this software upgrade and specific models upgradeable to Android 4.0 will vary by market and carrier requirements
Your carrier has the ability to approve or reject the update (any update) for any device. It is very like ICS will arrive in all COUNTRIES, but considering each country has multiple carriers, it might not come to every device.
In the end, it is very likely you will get ICS, but we cannot confirm it.
Ice Cream Sandwich – from source code release to software upgrade
Contrary to what people may think, it is not the Bring up phase, but the Certification and approval phase that is the most time consuming process when it comes to getting a new software release out on our phones. This is one of the major tasks that are legally required from us as phone manufacturer, but is a task that the custom ROM community doesn’t have to take into consideration. Furthermore, by putting all this efforts into testing and certification, we ensure that quality and conformance is at a top level, in benefit for all consumers worldwide.
Additional approvals might be needed
In some cases, the new and complete software release has to be approved to be used in all the different networks that our phones should work in. Many operators also want to customise the software according to their requirements, which in turn are based on their market, network, differentiation and business model. We implement all of these customisations and create a variety of software packages and releases for each operator.
When all of this is done, we are ready to roll out the software release variants as software upgrades to operators and consumers around the world. The software upgrade can then be downloaded and installed either in the operator’s own update tool (if they have one), from Sony Ericsson’s PC Companion tool, or by over the air updates (FOTA – Firmware Over the Air).
***
It should be pointed out that this summary of all the activities and phases is somewhat simplified and is meant to provide a general picture of what we do from the release of the first Ice Cream Sandwich source code, until it is released to our consumers. From Sony Ericsson, we hope it has shed some of light on the work being done for the software upgrades.
If you have any question on this topic, feel free to drop us a line below. We will try to respond as soon as possible. For general software announcements and product information, please check the Sony Ericsson Product Blogregularly.
Don't forget to mark the Correct Answers & Helpful Answers
you will get updates according to the new ftf file that you flashed to your phone
Don't forget to mark the Correct Answers & Helpful Answers
Thanks for your quick answer. So my new SI number is 1249-6227. Please update it soon. 
This might give you an idea
this is an official answer
http://talk.sonymobile.com/message/211536#211536
When we added this important note to the bottom of our blogpost, we answered your question: *The availability and scheduling of this software upgrade and specific models upgradeable to Android 4.0 will vary by market and carrier requirements
Your carrier has the ability to approve or reject the update (any update) for any device. It is very like ICS will arrive in all COUNTRIES, but considering each country has multiple carriers, it might not come to every device.
In the end, it is very likely you will get ICS, but we cannot confirm it.
Ice Cream Sandwich – from source code release to software upgrade
Contrary to what people may think, it is not the Bring up phase, but the Certification and approval phase that is the most time consuming process when it comes to getting a new software release out on our phones. This is one of the major tasks that are legally required from us as phone manufacturer, but is a task that the custom ROM community doesn’t have to take into consideration. Furthermore, by putting all this efforts into testing and certification, we ensure that quality and conformance is at a top level, in benefit for all consumers worldwide.
Additional approvals might be needed
In some cases, the new and complete software release has to be approved to be used in all the different networks that our phones should work in. Many operators also want to customise the software according to their requirements, which in turn are based on their market, network, differentiation and business model. We implement all of these customisations and create a variety of software packages and releases for each operator.
When all of this is done, we are ready to roll out the software release variants as software upgrades to operators and consumers around the world. The software upgrade can then be downloaded and installed either in the operator’s own update tool (if they have one), from Sony Ericsson’s PC Companion tool, or by over the air updates (FOTA – Firmware Over the Air).
***
It should be pointed out that this summary of all the activities and phases is somewhat simplified and is meant to provide a general picture of what we do from the release of the first Ice Cream Sandwich source code, until it is released to our consumers. From Sony Ericsson, we hope it has shed some of light on the work being done for the software upgrades.
If you have any question on this topic, feel free to drop us a line below. We will try to respond as soon as possible. For general software announcements and product information, please check the Sony Ericsson Product Blogregularly.
Don't forget to mark the Correct Answers & Helpful Answers