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Hi,
My samsung galaxy s2 (Android 4.0.3) is not recognizing any sim card but they are working fine in other phones. In my mobile, some times getting pop up "Refreshing sim data" and NO service (selected network not available).
I tried doing factory reset, still I have the same problem.
Manually I tried to select the network, but I got "Unable to connect, try later".
I don't think its hard ware problem, because its showing the mobile number in status.
Settings -> About phone -> Status -> My phone number
other details :
Settings -> About phone -> Status -> Network -> Unknown
Settings -> About phone -> Status -> service state -> out of service
Settings -> About phone -> Status -> mobile network state -> disconnected
If I root my mobile, Is there any chance of recognizing the sim card ?
Please help me.
Is your phone sim locked to any carrier?
If you root your s2 and flash with the new rom, maybe it will work, or can be a hardware problem!
kjplasma said:
Is your phone sim locked to any carrier?
Click to expand...
Click to collapse
Its second hand mobile with unlocked. I used it for 3 months, now I got this problem.
Hi, tipe code *#06# in dialer and check IMEI, if you don't have try to restor backup of efs folder if you have.
Sent from my GT-I9100 using Tapatalk
jorrddan said:
Hi, tipe code *#06# in dialer and check IMEI, if you don't have try to restor backup of efs folder if you have.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
I have IMEI and serial number
OK. So that sim card works in other phones. Logically, the test should therefore be try another sim in the SGS2 (go buy a $2 starter sim from another carrier if you need to).
If that doesn't work either, then refer it to your carrier if you bought the phone from them. Frankly, if you haven't rooted your phone/flashed non-stock firmware to it/messed with it, I wouldn't do same in an effort to try and fix this problem. Chances are it won't, and you'll have voided your warranty trying to fix it.
This happened to me to last week, it turned out to be that my phone was blacklisted. Take it back to were you bought it from, the shop where I bought it from exchanged mine and handed the blacklisted one to police, I've got called for witness statement even tho there's not much I can tell them
Sent from my GT-I9100 using Tapatalk
I'm also getting the error "No SIM card" in my Galaxy S2. 8 months left on contract.
Vodafone refused to repair, due to moisture on the main board, though I'm not convinced this is what has caused the fault. I've been reading this has been a bit of an issue with GS2, for one reason or another. (That and they sent me a quote for a HTC when I have a GS2)
It was my first trip to Bangkok, I took my phone out of flight mode, received a text from vodafone, advising I could use roaming, I took no action, then put it back in flight mode.
That was the last time my SIM worked. Had a new SIM put in when I arrived back in Sydney Australia, but same issue, SIM works in another phone.
I've checked that my IMEI isn't blacklisted, that it matches the sticker inside the phone (*#06#), I have the original stock, un-rooted, vodafone bloatware ROM currently on there.
Anyone have any idea's, other than this one from the app store (GSII_Repair) (n00bs can't post links)
markhardy1974 said:
I'm also getting the error "No SIM card" in my Galaxy S2. 8 months left on contract.
Vodafone refused to repair, due to moisture on the main board, though I'm not convinced this is what has caused the fault. I've been reading this has been a bit of an issue with GS2, for one reason or another. (That and they sent me a quote for a HTC when I have a GS2)
It was my first trip to Bangkok, I took my phone out of flight mode, received a text from vodafone, advising I could use roaming, I took no action, then put it back in flight mode.
That was the last time my SIM worked. Had a new SIM put in when I arrived back in Sydney Australia, but same issue, SIM works in another phone.
I've checked that my IMEI isn't blacklisted, that it matches the sticker inside the phone (*#06#), I have the original stock, un-rooted, vodafone bloatware ROM currently on there.
Anyone have any idea's, other than this one from the app store (GSII_Repair) (n00bs can't post links)
Click to expand...
Click to collapse
I had similar kind of problem. I tried different ways to resolve the problem, but couldn't do that. At last, I went to Samsung service centre, they said, it was hardware problem and they fixed the problem .
Just simply go to any Samsung service centre near to you, they will surely fix it. Mostly they will do it for free, if the mobile has warranty.
Dears,
I lost my phone yesterday, i'm about to issue a request to track the device i have the box with all the serial numbers .. etc but i was having a fake IMEI problem on my phone and did fix it my bad IMEI was 004999010640000 , will they be able to track it with the original IMEI which printed on the phone box?
Thx
Nope. If the phone is switched on, it will communicate with the network/be identified on the network by the IMEI it currently has (the generic one).
Given 1/10000 stolen mobile phones are recovered (in Australia at least), I'd rack that one up to experience, unfortunately.
A while back one of my customers found a T-Mobile Samsung Galaxy S2 at a bus stop which she handed in at the local police station. Last week she went back to see if it had been claimed and it had not so the police released the phone to my customer to keep as her own property.
She was aware that it was blocked but wanted to give it to her child to use as an android game device but when she told me about it I said I would have a look at it for her to check it was defiantly blocked.
On trying all network SIM cards I could only get the 'Emergency calls Only' notice. I did a Checkmend report and the device was still listed as stolen and blocked (the police have given her entitlement paperwork for the phone which I have seen) so I guessed it would be out of the question ever being able to use it as a phone again.
I decided to root the phone anyway and install a CM stock ROM. I then also installed the 'Galaxy S Unlock' APK and zero'd out the lock codes. I then tried all the SIM cards again with the same results as before.
After some browsing on the internet I download an APK called 'HC-kTool' and installed it. I then backed up my kernel and EFS folder to my SD card before hitting the advanced key and deleting my current installed EFS folder.
I turned off the phone, wrote down my IMEI number from behind the battery and inserted a Vodafone SIM card.
When the phone rebooted I got a full Vodafone signal and rang my home number, and it rang!
I then dialled *#06# and noticed my IMEI number has changed to something entirely different.
The phone has been connected over an hour now, I have not tried any other SIM as yet but I don't doubt it is unlocked and working on all networks now.
I read something briefly about T-mobile using a non-standard (I think) network system and deleting the EFS folder has the Samsung software revert it back to a non-T-mobile modified one. this could be totally wrong though...
Can anyone throw some light on this?
Is the imei 04999010....?
Sent from my GT-I9100 using Tapatalk 2
Most likely a silly network that doesn't block the dummy Samsung "default" IMEI...
MemoryController said:
Is the imei 04999010....?
Click to expand...
Click to collapse
Indeed it is. I thought that IMEI wasn't supposed to work to make calls?
Odder n odder!
Yeah had the dummy imei too and didnt notice until 2 weeks or so had passed, thankfully i had a backup from a year or so
Sent from my GT-I9100 using Tapatalk 2
MemoryController said:
Yeah had the dummy imei too and didnt notice until 2 weeks or so had passed, thankfully i had a backup from a year or so
Click to expand...
Click to collapse
So are there any negatives to using the dummy IMEI then? Also, if I edit the hex of the nv_data_bin files from the backup of the original IMEI can I change it to anything I please?
I dont think you can do that as it would be stupid from samny's side but try(after taking an efs backup). AFAIK no negatives except that some providers will block this IMEI
Sent from my GT-I9100 using Tapatalk 2
MemoryController said:
I dont think you can do that as it would be stupid from samny's side but try(after taking an efs backup). AFAIK no negatives except that some providers will block this IMEI
Click to expand...
Click to collapse
I have dumped the efs of the default Samsung and will compare the hex in hex workshop against the original dump. I'm guessing the main file here being the nv_data_bin.
While it is good news for my customer that this ex-stolen phone now works on Vodafone I don't think it is very responsible of Vodafone to allow default IMEI numbers to connect to their network. If I had my phone stolen I wouldn't like to think that the thief could potentially use it again.
Yes mine too was allowed on Vodafone after getting the dummy IMEI
Sent from my GT-I9100 using Tapatalk 2
I remember reading some time ago that although illegal in allot of country's if you were able to change a phones IMEI number so as to connect to a network it would still not be a worthwhile effort as if the fake IMEI was the same as that on another phone you would get the other phones text messages and calls mixed up with yours.
I always had doubts about that as it made more sense that calls and texts would be sent to the phone broadcasting the correct SIM number ID. But I was assured by people much more experienced in this stuff than I that the IMEI was a more secure method of ID'ing the correct device to send secure DATA to.
So if this is true, surely that would mean I am the only person on the planet using the default Samsung IMEI number as I have had no odd text messages or phone calls since I got this phone. (I am now the owner as I swapped it for an 8GB iPod Touch!)
Anyone can un-confuse me here!
imei change
hi im a noob did u yave any luck with the chang of inei? i have a phone that i thot i lost over 2 years ago but its been blocked i tried all the things u said the imei changed but still wont let the o2 card register on the network any more help you could offer? its a samsung galaxy s2 it is locked to the 3 network i have rooted it
sparkyuiop said:
A while back one of my customers found a T-Mobile Samsung Galaxy S2 at a bus stop which she handed in at the local police station. Last week she went back to see if it had been claimed and it had not so the police released the phone to my customer to keep as her own property.
She was aware that it was blocked but wanted to give it to her child to use as an android game device but when she told me about it I said I would have a look at it for her to check it was defiantly blocked.
On trying all network SIM cards I could only get the 'Emergency calls Only' notice. I did a Checkmend report and the device was still listed as stolen and blocked (the police have given her entitlement paperwork for the phone which I have seen) so I guessed it would be out of the question ever being able to use it as a phone again.
I decided to root the phone anyway and install a CM stock ROM. I then also installed the 'Galaxy S Unlock' APK and zero'd out the lock codes. I then tried all the SIM cards again with the same results as before.
After some browsing on the internet I download an APK called 'HC-kTool' and installed it. I then backed up my kernel and EFS folder to my SD card before hitting the advanced key and deleting my current installed EFS folder.
I turned off the phone, wrote down my IMEI number from behind the battery and inserted a Vodafone SIM card.
When the phone rebooted I got a full Vodafone signal and rang my home number, and it rang!
I then dialled *#06# and noticed my IMEI number has changed to something entirely different.
The phone has been connected over an hour now, I have not tried any other SIM as yet but I don't doubt it is unlocked and working on all networks now.
I read something briefly about T-mobile using a non-standard (I think) network system and deleting the EFS folder has the Samsung software revert it back to a non-T-mobile modified one. this could be totally wrong though...
Can anyone throw some light on this?
Click to expand...
Click to collapse
the donkey said:
hi im a noob did u yave any luck with the chang of inei..:
Click to expand...
Click to collapse
As far as I know the default Samsung IMEI number will only work on the Vodafone network. If you have rooted your S2 then there is an app in the Google Play store that will unlock your phone to all networks. Search for 'Samsung Unlock' and you will find it. If not there are plenty of ways to unlock it for free that you can find here on XDA.
I'm pretty sure you won't get it working on any other network without changing the IMEI which is incredibly difficult, not worth the cost of the equipment you would need and of course illegal in most country's carrying a very real prison sentence. XDA and other cell phone development communities will rightly not tolerate IMEI changing discussions and almost always permanently ban members should they attempt it so that is as much as I will discuss that!
Another thing I found recently was a company offering to 'De-Blacklist' phones to certain networks that were on the UK blacklist. At first I thought this must be illegal as if it wasn't it would make a mockery of the entire blacklisting principle, i.e prevention of crime. However more and more companies are offering this service and nothing seems to be preventing any of them from doing so. There are two UK based phone unlocking / modding businesses with a huge reputation online that are also doing it now too.
If anyone knows what that is about please enlighten me. No amount of probing I did had any of the companies reveal any of the methods to me!
I had an iPhone 4 that was IMEI blocked (found in a skip by a charity shop - checkmend reported not stolen) de-barred to 'EE / Orange' 5 days after paying about £50 to http://www.beijingiphonerepair.com/store/#!/~/category/id=4425106&offset=0&sort=normal
IMEI
If you were not cautious enough and you did not saved your efs directory before you made changes or ROM updates to your phone, then its possible that your phone "forget" your IMEI. So if you need to re-write your ORIGINAL IMEI back to that phone that its belong to, then its not a crime!!! There is an online program that can do that for around 4 EUR, 5-6 USD. If you are a half experienced browser user, you can find it by searching the keywords.
Although there is an easier way that you go to your provider and ask them to restore your phone IMEI, they can do that for you. If your wise enough, you put back your Original ROM, and zero the counter of ROM changes. As here in XDA you can find these methodes I wont give you any links, you can find it by yourself.
So, changing the IMEI is illegal in many countries but put back the original IMEI to the phone where it belongs is not!
UFF
To the OP.
Did you experience loss of functionality at all?
Someone i know followed what you did on a barred s2.
It now connects to virgins network but she can no longer switch on Bluetooth.
It tries to start then Bluetooth flicks over to off again.
Looking in phone details reveal that Bluetooth address is listed as unavailable.
Everything else seems to work fine.
sheffieldlad said:
To the OP.
Did you experience loss of functionality at all?
Someone i know followed what you did on a barred s2.
It now connects to virgins network but she can no longer switch on Bluetooth.
It tries to start then Bluetooth flicks over to off again.
Looking in phone details reveal that Bluetooth address is listed as unavailable.
Everything else seems to work fine.
Click to expand...
Click to collapse
Quick update, my friend tells me virgin seems to have blocked the imei now.
Hi guys,
First post so please bear with me...
The phone was dropped recently and screen smashed up badly.
Replaced screen and thought all was working fine until tried to make a call/send a message when I discovered that the phone had no network access...
Here's the diagnostic process I've been through...
Wifi works100%
Sim works in other phones
Other sims don't work in this phone.
Checked the antenna assembly to ensure contacts okay
Sim definitely reading - able to read sim contacts
Switched to airplane mode, reboot, turn back on - no luck
Searched for networks manually - no networks found at all. Another phone (samsung galaxy gio) finds all three (Optus, telstra, Vodafone)
No networks detected automatically either
No network detected using 2g only
So, if my wifi is working fine, that should rule out an antenna issue which to me indicates a hardware fault with the network side of things...
Is there a way to verify this is actually the case? And if so, is there a way to repair/solve it without doing a motherboard replacement???
Here was I thinking that it would be a cheap, easy repair... :/
Philbo29 said:
Hi guys,
First post so please bear with me...
The phone was dropped recently and screen smashed up badly.
Replaced screen and thought all was working fine until tried to make a call/send a message when I discovered that the phone had no network access...
Here's the diagnostic process I've been through...
Wifi works100%
Sim works in other phones
Other sims don't work in this phone.
Checked the antenna assembly to ensure contacts okay
Sim definitely reading - able to read sim contacts
Switched to airplane mode, reboot, turn back on - no luck
Searched for networks manually - no networks found at all. Another phone (samsung galaxy gio) finds all three (Optus, telstra, Vodafone)
No networks detected automatically either
No network detected using 2g only
So, if my wifi is working fine, that should rule out an antenna issue which to me indicates a hardware fault with the network side of things...
Is there a way to verify this is actually the case? And if so, is there a way to repair/solve it without doing a motherboard replacement???
Here was I thinking that it would be a cheap, easy repair... :/
Click to expand...
Click to collapse
If you want it free of cost so first try flashing new firmware via odin and then check it if not then give it to service centre !:good:
Make sure you're using a stock rom just in case it is a software problem, but it looks like a hardware problem to me. I recommend taking it back to the repair centre where you got your screen replaced.
I don't think it is possible without a motherboard replacement.
Not sent from a ACE but a CooperVe using Tapatalk 2.
thanks
I think I'll do a total strip down again just to make doubly sure that i've got absolutely everything connected in the right place and then if it's still not resolved, I'll look at sourcing a motherboard through some chinese friends...
The phone was actually purchased when in china, and as a result I had to flash it with an Aussie rom to get the google back in android. It's all worked fine since then until dropped which makes me think it's hardware related. problem with buying it in China is that I can't seem to find a motherboard online for it galaxy ace 5830i (the 'i' is the problem... can find plenty of 5830 mobos but seems the consensus is using a 5830 mobo will brick the phone...)
Oh well, thanks for the advice guys.
Even i had the same problem, but i solved it by flashing a stock ROM. You can try that or flash a stok kernel
recently I also had this same problem, even installing the stock rom did not solve, so I researched in several places and saw what could be problem with the IMEI, I did the whole process of repair IMEI and my phone is back to normal , try this method:
http://forum.xda-developers.com/showthread.php?t=1968360
Sent from my GT-S5830i
So...
I pulled it apart again to double check everything and noticed that the cell chip had come disconnected from the mobo upon impact and was only attached by three copper strips. After staring at it under a bright light for a while (no magnifying glass was to be found!), we stuck some super glue under it and tried to dry contact all the points... but it still didn't work.
However... after talking with a mate who's into circuit boards, he suggested that I try putting the mobo in the oven at 350 deg for 15 min to resolder all the joints as they use low-temp solder on these sort of boards.
I've got nothing to lose, so will be giving this a try when I get a chance and see if this brings it back!
I'll post back my results.
Yeah, and I recommend using a fine tip on your soldering iron just to be safe.
Not sent from a ACE but a CooperVe using Tapatalk 2.
hi all-
It appears my E970 may have kicked the bucket. I have been running CM11 for months now, on Sunday the phone gave a BSOD unexpectedly. This happens about once a month or so with CM, no big deal- or so I thought.
However since then I am unable to register on the Rogers network. My phone simply stays in Emergency Calls Only mode. Wifi works fine, Bluetooth, I am able to browse, read emails, play music.. everything works EXCEPT being able to register on the cellular network, make phone calls and send texts. I cannot manually register the network or in automatic. I have contacted support, tried different APNs, replaced the Rogers SIM and now tried a Telus SIM as well- all the same result; the phone is unable to register to the network. Now I have also done a factory wipe and reload of CM11 M6 for the E970, still the same result.
Since the E970 is a sealed phone with the side-port for SIM & mSD, what is the likelihood of the SIM card socket being damaged, or a radio being faulty? I have recently issues with the SD-card randomly dismounting, is this an indicator the card readers may have been failing?
Since the Optimus G is only ~18 months old, this may be the first phone I've ever had that hardware failed before I replaced it.. Has anybody else had similar hardware issues with reading SIMs or network registration? Was the BSOD a cause, or symptom?
amrando said:
hi all-
It appears my E970 may have kicked the bucket. I have been running CM11 for months now, on Sunday the phone gave a BSOD unexpectedly. This happens about once a month or so with CM, no big deal- or so I thought.
However since then I am unable to register on the Rogers network. My phone simply stays in Emergency Calls Only mode. Wifi works fine, Bluetooth, I am able to browse, read emails, play music.. everything works EXCEPT being able to register on the cellular network, make phone calls and send texts. I cannot manually register the network or in automatic. I have contacted support, tried different APNs, replaced the Rogers SIM and now tried a Telus SIM as well- all the same result; the phone is unable to register to the network. Now I have also done a factory wipe and reload of CM11 M6 for the E970, still the same result.
Since the E970 is a sealed phone with the side-port for SIM & mSD, what is the likelihood of the SIM card socket being damaged, or a radio being faulty? I have recently issues with the SD-card randomly dismounting, is this an indicator the card readers may have been failing?
Since the Optimus G is only ~18 months old, this may be the first phone I've ever had that hardware failed before I replaced it.. Has anybody else had similar hardware issues with reading SIMs or network registration? Was the BSOD a cause, or symptom?
Click to expand...
Click to collapse
UPDATE: While digging through the service menu, I've discovered the IMEI has been wiped to 0. So, how is this recoverable on an E970? Does CWM generate EFS backups?
amrando said:
UPDATE: While digging through the service menu, I've discovered the IMEI has been wiped to 0. So, how is this recoverable on an E970? Does CWM generate EFS backups?
Click to expand...
Click to collapse
I could be wrong, but as far as I know you need a Jtag to repair the IMEI. I have been able to repair IMEI's that way.
Maverick923 said:
I could be wrong, but as far as I know you need a Jtag to repair the IMEI. I have been able to repair IMEI's that way.
Click to expand...
Click to collapse
so essentially, it's bricked and I will have to send it back in to LG to get its EFS partition reloaded? Or is there a method I can use to generate it? The phone boots, loads CM and runs everything else including wifi and bluetooth, it just has no IMEI.
How does a subsystem crash BSOD erase my IMEI anyways? Shouldn't this be hardcoded?
amrando said:
so essentially, it's bricked and I will have to send it back in to LG to get its EFS partition reloaded? Or is there a method I can use to generate it? The phone boots, loads CM and runs everything else including wifi and bluetooth, it just has no IMEI.
How does a subsystem crash BSOD erase my IMEI anyways?
Click to expand...
Click to collapse
I am not sure, but perhaps a call to LG, or the local repair shop can correct your issue. You can check CL to see if there is anyone around.
As far as the IMEI itself goes, I would imagine it would be written on the box or you should be able to get it from the phone service provider.
So once you have that, you just need someone to write it to the phone. Maybe you wont need a Jtag. That's just how I have repaired them, but there maybe another way. Just remember that google is your friend.
Maverick923 said:
I am not sure, but perhaps a call to LG, or the local repair shop can correct your issue. You can check CL to see if there is anyone around.
As far as the IMEI itself goes, I would imagine it would be written on the box or you should be able to get it from the phone service provider.
So once you have that, you just need someone to write it to the phone. Maybe you wont need a Jtag. That's just how I have repaired them, but there maybe another way. Just remember that google is your friend.
Click to expand...
Click to collapse
Well, I know the restore process exists.. it doesn't much help me, because it appears the EFS backups were stored on the internal storage, which was corrupt or erased. So as I mentioned there, will any full recovery backup contain an EFS backup built-in that I can extract or recover? I have a couple from CWM and an older one from TWRP stored on mSD. The additional problem is; I've already restored one CWM backup and still no IMEI..