SIM unlocked Galaxy S4 got locked again?! - Galaxy S 4 Q&A, Help & Troubleshooting

So, I am very ignorant regarding cellphones, so I hope someone around here can help me out. I have a rooted Samsung S4 GT-I9500 that I bought in Guatemala from Claro company. I moved to Africa to work, so for me to be able to use my phone I bought an unlock code that worked just perfectly. My phone got sim unlocked and I was able to use it for several months until recently. One night my phone ran out of battery, so I plugged it to the charger and charged it all night [turned off]. Next morning when I turned the phone on, the phone was sim locked again and my sim card was not recognizable at all. the following message appears
"PIN to unlock SIM service provider"...when I click dismiss and scroll down the upper tab it says "Invalid SIM card...Network locked SIM card inserted".....
I tried reentering the unlocking code that I previously bought but with no success. I tried factory resetting and reentering the code, also no success. I also inserted my old Claro Guatemalan Sim Card and it is also not recognized by the phone. Does anyone have any clue or suggestions about what it could be and what I can do about it? Please make the explanations "for dummies" since as I said before, I am not that good with cellphone stuff. Thanks for your help.

dollagaray said:
So, I am very ignorant regarding cellphones, so I hope someone around here can help me out. I have a rooted Samsung S4 GT-I9500 that I bought in Guatemala from Claro company. I moved to Africa to work, so for me to be able to use my phone I bought an unlock code that worked just perfectly. My phone got sim unlocked and I was able to use it for several months until recently. One night my phone ran out of battery, so I plugged it to the charger and charged it all night [turned off]. Next morning when I turned the phone on, the phone was sim locked again and my sim card was not recognizable at all. the following message appears
"PIN to unlock SIM service provider"...when I click dismiss and scroll down the upper tab it says "Invalid SIM card...Network locked SIM card inserted".....
I tried reentering the unlocking code that I previously bought but with no success. I tried factory resetting and reentering the code, also no success. I also inserted my old Claro Guatemalan Sim Card and it is also not recognized by the phone. Does anyone have any clue or suggestions about what it could be and what I can do about it? Please make the explanations "for dummies" since as I said before, I am not that good with cellphone stuff. Thanks for your help.
Click to expand...
Click to collapse
Hello dollagaray,
I´m having the exact same issue. Did you find any way of solving it? I have flashed several firmwares and modems but nothing would unlock the phone again.
Thanks in advance!
morza21

I had this issue and ended up replacing the SIM card tray.

Related

Cingular 8125 Sim "counter Blocked". Question Please Read !!!

I brought a 8125 from ebay it had a cracked screen. So I had an PPC 6700 that had a bad radio so I took the screen out of it and placed it in the 8125. Everything worked great but when I turned it on it cam up with the message " Invalid or missing SIM card". I placed my Tmobile SIM card in I turned on the device and it reads the same thing. I read all the posts that I can find about this and they really didn't have much about it. I noticed that its searching for the network buy looking at the signal indicator but I also noticed the the led to sho that the phone was on doesn't blink. On some of the posts that I read it stated that if someone put the wrong code in to many times that the phone will be "counter blocked". I think maybe thats what happened with the last owner of the phone did. I at first unlocked the sim with the sim unlocker thinking that was the problem was but it still didn't work. My question is if it goes in to the counter blocked mode does it prevent the software from unlocking the sim. My other question is what is the file's name that when you place a sim in the phone that it runs to enter the unlock code on the phone? I was thinking maybe if I run that file manualy that maybe it will get the phone out of the counter blocked mode and then I can try running the software unlock again. Things that I have done to try to get it to work was sim and cid unlock, flashed tmobile rom to the device checked the contacts in the sim holder to make sure they are touching the sim card. Any ideas?
Sounds like it may not be a software problem. If the device was legitimately software blocked, it would display that, instead of 'invalid/missing SIM'. If it's IMEI blocked, it would have accepted the SIM but been unable to connect to the network.
The problem is most likely either the SIM itself or the onboard SIM reader. Try obtaining another SIM card and seeing if the device will read it.

Problem with unlocking Rogers x10a

Hi all, I'm new here and before I tell you the problem, I appreciate all the info on these forums and the work that is put into everything. Thank you in advance.
So, I have a locked Rogers branded X10a, and I was unable to get the SIM unlock pin. So, I got the network unlock code, but whatever sim I put in, the screen always reads "no sim card" in the phone and then the activating screen loads and continues to load forever. Under settings (without a sim in the phone), there is the option for sim unlock pin, but that is the code that I am unable to get after numerous tries on different sites.
How can I get to the screen to enter the sim network unlock code if the phone in not recognizing any sim cards that I put in? Btw, I'm using AT&T. Any help would be greatly appreciated. Sorry for the length of this post and thank you.
I had similar issue my w580i. I had it after putting the unlocking code it stop recoganising SIM, havn't solution till now
Did you try using a different Rogers sim?
I don't have a rogers SIM, only AT&T. I bought the phone locked and just figured I would be able to get an unlock code like all the other phones I've had before, but no dice.
Check your pm
Sent from my X10a using XDA App
I just tried to put in my deactivated Rogers SIM card from long time ago, and I am also getting "No SIM Card" ... Not sure if your problem has anything to do with Rogers Wireless used to be "Rogers AT&T" before
If you have any friends has SIM card from different carriers, try to put those in and see if you experience "No SIM Card" issue.
Regards
Mabye it does.. I'll try and find someone with a Tmobile sim I guess.. thanks for the advice though..
Please keep me updated on this, I'm trying to unlock my X10, I got the code from cellunlock.net through the manufacturer and keeps telling me after I enter the code that it was unsuccessful.
I still can't unlock my phone either but I'm not sure about the SIM unlock code you're talking about. Are you talking about the IMEI? or the actual code that's used to unlock the phone? I've tried Mobileincanada.com but they couldn't unlock my phone and gave me a refund and I'm still waiting for this dealer on ebay. Good luck dude, keep us posted
junkk29 said:
I still can't unlock my phone either but I'm not sure about the SIM unlock code you're talking about. Are you talking about the IMEI? or the actual code that's used to unlock the phone? I've tried Mobileincanada.com but they couldn't unlock my phone and gave me a refund and I'm still waiting for this dealer on ebay. Good luck dude, keep us posted
Click to expand...
Click to collapse
Got an unlock code, www.cellunlock.net
Make sure to pick the Sony Ericsson Manufacturer code it's 34.99 but well worth it. It works now.
the manufacturer unlock code is the one I got, but I just don't get the option to put it in because the phone doesn't recognize the AT&T sims that I've put into it...
Jikenda said:
the manufacturer unlock code is the one I got, but I just don't get the option to put it in because the phone doesn't recognize the AT&T sims that I've put into it...
Click to expand...
Click to collapse
How old are the sim cards? If they are old, get new ones. Also, try re-installing the firmware through seus and then putting in your sim card. I never had that issue, I just had a hard time finding the code.
I had a real old one from cingular, but then I just went to AT&T and got a brand new one, but same issue. I'll try updating and see if that helps, but will the phone update without a valid sim inserted?
Jikenda said:
Hi all, I'm new here and before I tell you the problem, I appreciate all the info on these forums and the work that is put into everything. Thank you in advance.
So, I have a locked Rogers branded X10a, and I was unable to get the SIM unlock pin. So, I got the network unlock code, but whatever sim I put in, the screen always reads "no sim card" in the phone and then the activating screen loads and continues to load forever. Under settings (without a sim in the phone), there is the option for sim unlock pin, but that is the code that I am unable to get after numerous tries on different sites.
How can I get to the screen to enter the sim network unlock code if the phone in not recognizing any sim cards that I put in? Btw, I'm using AT&T. Any help would be greatly appreciated. Sorry for the length of this post and thank you.
Click to expand...
Click to collapse
I had that same problem. Call AT&T or go to your AT&T account online and get the PUK number. Also, did you call AT&T and told them you have a new phone? They need your phone's new IMEI number.
RumpleStealthSkin said:
I had that same problem. Call AT&T or go to your AT&T account online and get the PUK number. Also, did you call AT&T and told them you have a new phone? They need your phone's new IMEI number.
Click to expand...
Click to collapse
I'm sorry, what is the PUK number for and also, why does AT&T need my IMEI number? I mean, the phone is still locked to rogers right now regardless, right?
Lots of noob questions, sorry.
Also, i already spoke to AT&T, Rogers and Sony Ericsson about the issue, but none of them are any help of course. The PUK did nothing for me either. I feel like I am running out of options here...
welcome to the club
http://forum.xda-developers.com/showthread.php?t=717414&highlight=phone+stuck
so far no solution
So, I tried repairing through PC Companion and then I also ran the update and go the newest firmware installed now, but still same problem. Phone does not recognize the AT&T when inserted and therefore, no option to enter the network unlock code. Any others have any luck/make any progress??
wow... i guess i'm in the club as well. I just got back from the Rogers store and they wouldn't let me replace the phone anymore. I've bought the manufacturer's code which is suppose to work 100% but it didn't...so desperate
Sorry to hear that...
You said the code you got didn't work? In what way? did you try to get a refund by providing video evidence?
On a side note, does anyone know how to access a keypad on the x10 that enables you to imput the left arrow, *, * left arrow method to input the code? I realize I need to have a valid rogers sim inserted in order for this to work, but I do not see how to input the arrow keys. Any suggestions? As I've said, I'm new to android and to a device with no physical keyboard, so maybe this is very simple...
thanks and good luck to others in the same spot as me right now..

[Q] not registering on network??

I just bought an Orange branded SGS, which should have been unlocked. So I was surprised when it kept asking for PIN code which I thought would be 0000 but after several tries this did not work.
At first it was not seeing the sim card so I downloaded the SGS unlock from android market. This gave the unlock code and unfreezing code. it then saw the SIM card or at least the no SIM card logo disappeared.
the problem is it is not registering on the network. I went to an unlocker shop and they even tried an Orange Sim card this still did not work.
Still no Joy
Any thoughts and suggestions would be gratefully received
Have you tried calling orange to see if the imei had been black listed? Could be a lost/stolen phone you have unfortunately purchased
Sent from my GT-I9000 using XDA App

[Q] [HD2] Antenna exclamation mark and 'SIM card is missing' issues

Hello all, I bought a used HD2 off CL (USA), hoping to unlock it (if locked) and use it with my ATT prepaid sim.
Outwardly, the phone looks fine and everything about it works quite nicely, EXCEPT that when I insert my SIM card and start the phone, it shows me an exclamation mark on the antenna icon. When I disable all wireless connections and then re-enable it, the icon now changes to the SIM card icon with an 'x' next to it, and I am shown a screen with a keypad and the following message: 'The SIM card is missing. You can still make emergency calls if your service provider supports it.'
Thinking it was a ROM issue, I successfully loaded the latest ROM from [showthread.php?t=789506] but it did not resolve the issue. There is no issue with the SIM because it works nicely with my AT&T Samsung a607. There are no signal strength issues either.
Please help!
Can someone please provide some insight on my situation? I hope I haven't posted in the wrong forum; if so, mods may move it to the appropriate place.
Any advice on diagnosing the issue will be appreciated; I don't even know why the phone is acting the way it is. Many thanks!
Wait a moment, so your device isnt already SIM unlocked? Sounds to me like you need to go ahead and get an unlock code for it, then navigate to the \Windows folder and hit up the program called "simlock.exe" and input your unlock code, then try your ATT SIM again.
Thanks much for the reply. Other phones usually prompt for a SIM unlock code by themselves... why doesn't this one?
Running simlock.exe from Windows does give me the message "Network is locked, please input unlock code". Before I buy the code, I want to make sure that there's nothing physically wrong with the phone. It should give me at least *some* sign that my SIM is being recognized, but rejected due to network-locking, no?
Thanks again!
See thats the thing. With a foreign SIM card in the device, IF LOCKED, simlock.exe should run automatically on startup and ask for the code....so honestly I do not know if your device is messed up somehow, or if its just being wonky for the sake of being wonky. Perhaps you might want to flash a new Radio ROM and see if it then recognizes your SIM. BE SURE to NOT flash one with .51 in its name.
Thanks again. Can you point to a thread with detailed instructions for flashing a new radio ROM for my device? I found many threads while searching and I am confused. I don't want to choose the wrong instructions and brick this device; I haven't done anything of this sort before.
Look at the top of these forums for a stickie by Snarksneeze that will teach you everything you need to know.
Hi again... I don't have a spare 8GB MicroSD card lying around. Is there any way I can do this flashing over USB? I did read that there's a risk associated with flashing over USB (cable yanks, power loss, etc.) but I did flash the newest ROM without any issue, and hopefully I can do the same for the new Radio ROM.
The Radio version shown in the 'About Phone' section is 2.14.50.04, btw.
You can use your 16GB that came with the phone, or any other one for that matter. That requirement is more of a recomendation really. I have flashed with my stock 16GB many times. And yes, you can do it via USB aswell.
OK, so I have more information about the problem. I got the phone unlocked (I heartily recommend 'fastunlocker' on eBay) thinking that it would solve the issue... but it didn't. But, on a lark, I tried my friend's post-paid T-Mobile SIM in the HD2 and it worked! My AT&T pre-paid SIM does not... can this be a problem? The damn thing works nicely in other (unlocked) phones.
Is anyone else successfully using a AT&T GoPhone (prepaid) SIM on a TMOUS HTC HD2?
It may very well be the problem then. I have heard that some phones are incompatible with pre-paid SIMs.
God, that would suck donkeyballs. Can someone confirm that an unlocked TMOUS HD2 does not work with AT&T GoPhone prepaid SIMs?
had this same exact issue and realized that one of the pins in the sim card reader was stuck in the down position. I poked it with a small screwdriver and it popped back into place. works like a charm now.
Thanks for the reply. Are you sure this is the issue? As I mentioned in a previous post in this thread, my friend's T-Mobile SIM works nicely with the phone.
EDIT: Also, are you using it with an AT&T GoPhone SIM?
Bump... anyone?
Final bump: maybe I am SOL. :'(
Is anyone successfully using a TMOUS HD2 with an AT&T Prepaid (GoPhone) SIM?
Give it some time. Sometimes threads at XDA stay dormant for months and then suddenly BAM! a breakthrough happens.
I would say its your sim. How old is it?
I had the exact same problem. I bought a HD2 off cl and put my sim in and got the no sim message and exclamation point. I was using a sim from the voicesteam days but guess what it worked just fine in the Nexus one I had just gotten so I figured it had to be the phone. I finally used a friends sim and it worked fine. So I would turn the phone off in settings then slip his sim out with the battery still in and put my sim in and turn the phone back on. Guess what, it would work for about 10 min then it would suddenly go back to no sim message. So I went and got a new sim from T-Mobile and walla works like a charm. So try what I did and if you end up with the same problem try a new sim from AT&T. I don't know what is different about the HD2 but there something about the older sims that it doesn't like.
Hope that helps!
Hey... thanks for ther reply! My SIM is brand new (about two weeks old). I will however go to the AT&T store and get it replaced to see if it fixes the problem. Thanks again, I appreciate it.
Dear look my problem...
ashasaur said:
Wait a moment, so your device isnt already SIM unlocked? Sounds to me like you need to go ahead and get an unlock code for it, then navigate to the \Windows folder and hit up the program called "simlock.exe" and input your unlock code, then try your ATT SIM again.
Click to expand...
Click to collapse
-----------
I have a HTC HD2 working excellent with my card. Some day i received message : card is missing ....like you.
But restarting 2-3 times all ok. In a week the same problem again here.
Now i cant make a call. The same card in another hd2 works good. Any other card in MINE phone is missing...
Please help me.
Many thanks
[email protected]

one Samsung Galaxy S4 EE sim says 'invalid sim other OK

I have 2 Galaxy S4 i9505 phones.
Phone 1. Bought as used phone on Ebay and was previously locked to the 'Three' network, I had it unlocked by 'Three'. This phone has always, and still does work without problem with my EE 4G (pay monthly) sim. The only remarkable thing about this phone is that it failed/froze/bricked whilst installing the Lollipop upgrade. It was repaired - new boards - under warranty in April 2015.
Phone 2 was also bought as used on Ebay. This phone had been used on O2 network. I discovered that it had never been locked to any network. I bought a pay monthly 30 day rolling contract thinking that it had been locked to O2. When I put my EE 4G sim in I got the message 'no sim, insert sim'. Baffled. The only thing I thought could be the problem was the sim itself, EE gave me a new sim. The only physical difference this sim had was that it had the Nano option. When I put this sim in phone 1 it worked perfectly, I put it into phone 2 and it worked! I needed to put the sim back into phone 1 to set it up to transfer data. When I put it back into phone 2 the message 'invalid sim' came up and that is where things stand.
As I have two phones I was hoping someone could guide me through the necessary steps to find out where the problem lies by comparing the two, and hopefully find a solution. I have read another thread from tomedwards93 posted in April 2015 and see no solution was found by him so maybe this could help him too.
Can someone please help?
I didn't understand a single of what is written,the description is long and read this thread twice,still can't a understand this thread
Sent from my GT-I9505 using Tapatalk
Grimble1950 said:
I have 2 Galaxy S4 i9505 phones.
Phone 1. Bought as used phone on Ebay and was previously locked to the 'Three' network, I had it unlocked by 'Three'. This phone has always, and still does work without problem with my EE 4G (pay monthly) sim. The only remarkable thing about this phone is that it failed/froze/bricked whilst installing the Lollipop upgrade. It was repaired - new boards - under warranty in April 2015.
Phone 2 was also bought as used on Ebay. This phone had been used on O2 network. I discovered that it had never been locked to any network. I bought a pay monthly 30 day rolling contract thinking that it had been locked to O2. When I put my EE 4G sim in I got the message 'no sim, insert sim'. Baffled. The only thing I thought could be the problem was the sim itself, EE gave me a new sim. The only physical difference this sim had was that it had the Nano option. When I put this sim in phone 1 it worked perfectly, I put it into phone 2 and it worked! I needed to put the sim back into phone 1 to set it up to transfer data. When I put it back into phone 2 the message 'invalid sim' came up and that is where things stand.
As I have two phones I was hoping someone could guide me through the necessary steps to find out where the problem lies by comparing the two, and hopefully find a solution. I have read another thread from tomedwards93 posted in April 2015 and see no solution was found by him so maybe this could help him too.
Can someone please help?
Click to expand...
Click to collapse
It it worked and now it doesn't then replace the sim slot on phone 2.
Lennyz1988 said:
It it worked and now it doesn't then replace the sim slot on phone 2.
Click to expand...
Click to collapse
I've replaced the sim card slot and done a factory reset, it worked for about half an hour then the 'No sim ' message returned. It still works with a PAYG '3 network' sim, with intermittent 'sim removed restart phone' message I no longer have the O2 account.
I have another fully functioning S4. Can anyone guide me through comparing the Android settings on the 2 phones.
I've never attempted either flashing or rooting and don't understand how to go about doing this.
Just to say thanks for the suggestions, the phone has now corrupted my SD card and I've had enough, I'm defeated. I'll keep this phone as a Sonos controller and go to Lumia 950 on Win phone 10 when it arrives.:good:
Sim not detected
I have a samsung S4 i 9505 and I often receive a message "insert cart sim". After rebooting it works normally

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