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104 posts

Master Geek
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Topic # 113091 5-Jan-2013 18:25 Send private message

Hi,

My family and I have been using galaxy s2 for more than two years now, and recently been having trouble with vodafone network. It simply keeps going into "emergency only" mode where no txts or calls can be made or received unless rebooted. When rebooted, it works for a while then again goes into the "emergency only" mode.

I couldn't figure out why this was happening (tried switching sims and talked to vodafone reps). However, through internet research I found out that our handsets have generic IMEI numbers (004999010640000). We bought the handsets from eBay which may have something to do with it. 

I've read articles online that many overseas mobile networks block this generic IMEI numbers for security reasons and I suspect that Vodafone NZ is now starting to do the same thing.
I just wanted to confirm if there are people out there experiencing the same problem as me. 

A vast number of mobile phones in NZ used to be cheap chinese phones or knockoffs. They are typically manufactured at low cost. Instead of individually using differing IMEI for each phone they often cut corners and cost by using the same generic IMEI number on all phones. It would have been nice of Vodafone to implement some kind of measures that ensure users with non-stolen phones to keep using the network instead of blocking them all. 

Oh well, I guess I will just have to move to 2degrees for now. 

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16130 posts

Uber Geek
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Vodafone NZ

  Reply # 740476 5-Jan-2013 18:29 Send private message

If the IMEI was blacklisted handset would not register on the network to start with




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  Reply # 740477 5-Jan-2013 18:30 Send private message

It doesn't have to be intentional. For instance if anyone reported a handset stolen and this IMEI was in that handset then any other handset with the same IMEI would be blocked.

But if you have intermittent service then it's not blocked. More likely bad coverage. 

 Oh well, I guess I will just have to move to 2degrees for now.


Surely moving providers based on something which we have no evidence of yet seems to be jumping the gun?





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  Reply # 740478 5-Jan-2013 18:34 Send private message

How is your coverage?

Sounds like your phone may be emergency call camping onto another network when it's losing coverage on VF.



104 posts

Master Geek
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  Reply # 740484 5-Jan-2013 19:02 Send private message

I have now confirmed with Vodafone reps that this generic imei is indeed reported as stolen and there is nothing they can do to unblock it.
All four handsets with this imei number are having this kind of problem. I live in city central and I doubt it is due to network coverage since my friends phones work fine.
It has to be Vodafone blocking it although I am not sure why it works temporarily when rebooted..



104 posts

Master Geek
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  Reply # 740486 5-Jan-2013 19:07 Send private message

Is there any chance that Vodafone would put this generic imei number on the whitelist?
Since this is a generic imei number, when reported stolen who knows how many handsets it affects..

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  Reply # 740490 5-Jan-2013 19:28 Send private message

Must of been a good reason why it was done




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Ultimate Geek
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  Reply # 740491 5-Jan-2013 19:31 Send private message

We bought the handsets from eBay which may have something to do with it.


How much did you pay for all those phones?

By the way, 2degrees now have the ability to block IMEI numbers so you might need to consider replacing all those phones.

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Ultimate Geek
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  Reply # 740492 5-Jan-2013 19:34 Send private message

I'm sure Steve or John will correct me if I'm wrong here but I'm pretty sure that with any network running an EIR, if it sees duplicate IMEIs connecting at the same time it will automatically kick both of them off. This is just something I have heard, I don't know if this is quite how it works.

Are they genuine Samsung phones or are they the fake galaxy lookalikes? (the ones with the extendable antenna etc).

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Uber Geek
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  Reply # 740499 5-Jan-2013 20:11 Send private message

It looks like the generic imei is a result of a meddling with the OS and losing original imei, google that specific imei and you get quite a few hits and most point toward ebay/craigslist scam and a need for original efs folder to correct this scenario. It is most probable that that imei number was not the imei number Samsung put on that handset.


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Ultimate Geek
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  Reply # 740501 5-Jan-2013 20:16 Send private message

Wade: It looks like the generic imei is a result of a meddling with the OS and losing original imei, google that specific imei and you get quite a few hits and most point toward ebay/craigslist scam and a need for original efs folder to correct this scenario. It is most probable that that imei number was not the imei number Samsung put on that handset.



There's no chance the IMEI in the OP is a genuine Samsung IMEI, which is why I was thinking the phone might have been one of the clones that are going around these days. Either that or it's been stolen and someone's reprogrammed the imei to something else. Either seem entirely possible, I've heard of both scenarios happening reasonably regularly.

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  Reply # 740503 5-Jan-2013 20:20 Send private message

I guess it's the downside of buying what was potentially a stolen handset from a foreign country.

Does your handset have the IMEI sticker or was this removed as well?




104 posts

Master Geek
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  Reply # 740511 5-Jan-2013 21:17 Send private message

Handsets are genuine just with generic imei.
Pity how it worked perfectly till now.
I'll just have to be more careful next time I purchase a phone.
I guess vodafone needs to block this imei otherwise people would steal phones and overwrite imei using custom roms and stuff

162 posts

Master Geek
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  Reply # 740522 5-Jan-2013 22:16 Send private message

can someone please explain how genuine handsets would all have the same IMEI code? I must have the wrong end of the stick, surly.

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  Reply # 740529 5-Jan-2013 22:55 Send private message

They don't as far as I know...otherwise what would be the point of the IMEI?

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  Reply # 740533 5-Jan-2013 22:58 Send private message

johny99: can someone please explain how genuine handsets would all have the same IMEI code? I must have the wrong end of the stick, surly.


They may be genuine hardware but as uglybob says at some point they have had their IMIE numbers changed in software.

Sounds to me like the phones may have "Fallen off the back of a truck" IMIE's where blacklisted and the "recipient" changed their IMIE's to avoid the block and then sold them or it could just be the case where they are knockoffs in which case they would no be genuine. Either way something smells fishy.

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