[Q] No reception/service on SGSII on beanstalk 4.4.2 - Galaxy S II Q&A, Help & Troubleshooting

Hi All!
sorry if this thread is a repeat of another somewhere else on the interwebs, but after thorough searching for a few days I could not find a solution or even a similar problem.
(oh and sorry if my question is a little weirdly-put, an xda newb in the flesh, and my first post :fingers-crossed: )
In brief, I had recently bought a Samsung Galaxy S II i9100 from overseas, but as i was overseas I had no sim card and the phone was in aeroplane mode for about a month and a half. while overseas I had flashed many kernels and ROMs, but when I arrived home a few days ago, I had realised my phone wasn't receiving service or reception. at the time I was running a carbon ROM nightly (android 4.3.1), now I have switched over to beanstalk 4.4.2, and I am receiving the same issue, and when I try to flash a different modem/radio in CWM, it always appears with either "error with zip" or "status 7".
When I type *#*#4643#*#* and try to turn the radio on and off, the radio does not turn on or off!
Also; sometimes after boot the carrier name would show up as "YES OPTUS" but no reception, and when I try to make calls its either "please "Turn aeroplane mode off" or "Network is unavailable"
I have changed my sim card with a new one and had fully recharged it too, but on other phones it works, on mine it does not.
so my questions are:
1) What would be the cause of the issue?
2) What would be the best way to solve it?
3) Could it be because i bought it from another country?
4) Could it be a hardware problem?
Phone Specs:
BaseBand version : I9100XXLPW
Android Version : 4.4.2
CWM : v6.0.4.5
Beanstalk Version : Beanstalk-4.4.200-20131222-i9100
Thanks in advance for anyone with any help !!!
And sorry again for the newbiness...this is my first post in my life so you may understand the confusion
Good Day!

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Al-Dazzlez said:
Hi All!
sorry if this thread is a repeat of another somewhere else on the interwebs, but after thorough searching for a few days I could not find a solution or even a similar problem.
(oh and sorry if my question is a little weirdly-put, an xda newb in the flesh, and my first post :fingers-crossed: )
In brief, I had recently bought a Samsung Galaxy S II i9100 from overseas, but as i was overseas I had no sim card and the phone was in aeroplane mode for about a month and a half. while overseas I had flashed many kernels and ROMs, but when I arrived home a few days ago, I had realised my phone wasn't receiving service or reception. at the time I was running a carbon ROM nightly (android 4.3.1), now I have switched over to beanstalk 4.4.2, and I am receiving the same issue, and when I try to flash a different modem/radio in CWM, it always appears with either "error with zip" or "status 7".
When I type *#*#4643#*#* and try to turn the radio on and off, the radio does not turn on or off!
Also; sometimes after boot the carrier name would show up as "YES OPTUS" but no reception, and when I try to make calls its either "please "Turn aeroplane mode off" or "Network is unavailable"
I have changed my sim card with a new one and had fully recharged it too, but on other phones it works, on mine it does not.
so my questions are:
1) What would be the cause of the issue?
2) What would be the best way to solve it?
3) Could it be because i bought it from another country?
4) Could it be a hardware problem?
Phone Specs:
BaseBand version : I9100XXLPW
Android Version : 4.4.2
CWM : v6.0.4.5
Beanstalk Version : Beanstalk-4.4.200-20131222-i9100
Thanks in advance for anyone with any help !!!
And sorry again for the newbiness...this is my first post in my life so you may understand the confusion
Good Day!
Click to expand...
Click to collapse
Is the IMEI your problem? Recover IMEI

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Christiaan91 said:
Is the IMEI your problem? Recover IMEI
Click to expand...
Click to collapse
How Can I tell?

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Al-Dazzlez said:
How Can I tell?
Click to expand...
Click to collapse
Sorry had to explain that of course.
Go to settings - about phone - status and look for IMEI.
If it's empty or showing 004999010640000 it's wrong and restore your EFS back-up or go to the thread to try recover your IMEI and hope it helps.

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Christiaan91 said:
Sorry had to explain that of course.
Go to settings - about phone - status and look for IMEI.
If it's empty or showing 004999010640000 it's wrong and restore your EFS back-up or go to the thread to try recover your IMEI and hope it helps.
Click to expand...
Click to collapse
Thank you so much, and yes that helped, (i hope i didint talk too much)
but just a question if i may,
where can i find an original gingerbread or jelly bean ofw for my phone? every time i flash one,
i get stuck in a boot loop, and after applying all available fixes...no help
if you can help my with a link that would be helpful for future advancements because i have one on my pc but its buggy as hell and half currpted (i only use it to do a full recover and re-root and all that stuff):good::good::good:

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Al-Dazzlez said:
Thank you so much, and yes that helped, (i hope i didint talk too much)
but just a question if i may,
where can i find an original gingerbread or jelly bean ofw for my phone? every time i flash one,
i get stuck in a boot loop, and after applying all available fixes...no help
if you can help my with a link that would be helpful for future advancements because i have one on my pc but its buggy as hell and half currpted (i only use it to do a full recover and re-root and all that stuff):good::good::good:
Click to expand...
Click to collapse
Official firmware Post 2 is the guide and post 3 are the official firmwares. Look what firmware you need and google for a download link.
You do all the steps before flashing a new rom? Wiping and formatting data, caches and system?

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Christiaan91 said:
Official firmware Post 2 is the guide and post 3 are the official firmwares. Look what firmware you need and google for a download link.
You do all the steps before flashing a new rom? Wiping and formatting data, caches and system?
Click to expand...
Click to collapse
Yup, i did all the steps properly, but meh, on the other hand; your link was sooooo helpful, at least now i have a choice of codes as well.
thank you so much, i thought my questions would be left un aswered..(btw did i post in right section?.....common sense told me so but i wanted to be sure )

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Al-Dazzlez said:
Yup, i did all the steps properly, but meh, on the other hand; your link was sooooo helpful, at least now i have a choice of codes as well.
thank you so much, i thought my questions would be left un aswered..(btw did i post in right section?.....common sense told me so but i wanted to be sure )
Click to expand...
Click to collapse
Yes this is the right section.