Hi All,

I am looking for help here after trying many things myself reading posts here and Meego forum. Let me explain this issue briefly.
I have N9 64GB Black bought from Poland, I used it for 4 months. Initially on original fw then I changed variant code from Central Europe(059J1V8) to India(059J236),Even though N9 was never officially released here navifirm had firmware files. I know some people say changing variant code was not required , I did it via nemesis suite. It worked also. After that I flashed Indian FW and emmc. I was able to use phone without any issues. In fact I flashed it with same Indian fw+emmc 3-4 times due to issues with nitdroid.
Phone was working perfectly well.
Then I decided to sell it and that's where all issues started.
I sold it to one guy, who also has one N9 earlier with him. Now he says that he always had problem of SIM error. He thought his SIM was faulty so he waited to get proper microSIM from operator. After getting proper microSIM, he tried that also which failed again. He checked with friend's microSIM and same error. Their SIM cards worked without any issues in other phones. This all he told me after whole 1 month I sold to him.
I tried to tell him to flash phone again but nothing helped. Now this guy wants his money back saying that phone was faulty when I sold him. Which is definitely not the case. Phone was working with me perfectly.
I have offered him help by trying to fix it myself. I got phone today and found that my problem is related to flashing of cmt thing.
I found few threads on TMO as well as Meego forums but I am still unable to fix it by following instructions.
I am referring to following threads.

http://forum.meego.com/showthread.php?t=4728&page=22
http://talk.maemo.org/showthread.php?t=82314&page=3

Phone is working with wifi, bluetooth, only cellular network seems to be dead.
In flashing progress I get following
[f] cmt-mcusw [finishing 0 % 6050 / 6050 kB 3356 kB/s]
It doesnt finish and fails.

Please suggest me some path forward.
I am thinking of checking whether this is hardware or software isssue. I guess I can test that by nitdroid. Right? If cellular network works in android then hardware reason can be safely eliminated.
Please , Please , Please help me with suggestions.
This issue has become kind of serious for me as that guys is doubting my honesty. I need all help from community.
If you need any information,details please let me know.