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phone HATES my SIM CARD "unregistured sim"

My phone HATES my SIM CARD, First off i rooted my phone, its fully unlocked and has been just fine for over a month. I'm using FIDO but its an unlocked Rogers phone. (SGH-I727R model) and original FW and everything. made a couple of phone calls in the morning and the when i got home i noticed that my phone displayed "unregistured SIM" so i tried reloading sim card, reboot and so on over and over again. and it didnt work. so put the sim card in my 4year old phone, and it worked.
try calling fido aswell as rogers.. they said, sim card might be old and there is a conflict with the NEW phone. so i went to futureshop talked with the dude got the NEW sim card and tested it out with no success. again tried it with old phone, WORKS..
now you think maybe the phone might be locked somehow... NOPE. i even tried dude's sim card and he is on another network. (NOT rogers or fido) WORKED with his sim, proof my phone is totally unlocked to any carrier.
NEW SIM Card Doesnt work with my phone but worked perfectly with buddies SIM CARD on another carrier?!?!... lol
and now it shows "no service"
PLEASE HELP.

Update
i have just formatted, cleared cache and factory reset and it still says the same ****. no service... anyone help? i'm dead in the water here..

I had the same problem, I had to switch carriers then my phone started working properly, Honestly I think its the company...

Update
well, it looks like i hit rock bottom. i even installed the new ics rom and its still doesn't take my SIM card. I'm pissed. i need to dump this phone and get a working one. I can't switch over to rogers, I hate them. and when i go on vacation this phone will be a brick if i cant insert everyone elses sim cards around the world.
and i dont think its the company's fault. i have a feeling its because its rooted or something along those lines.
maybe i will wait for the new galaxy sIII and dump this ****. $$560 wasted. i feel soo stupid for getting this phone.

hi,
What have you used to unlock sgh-i727? I have one and need to unlock it so can switch to other provider then ATT.

when i bought the phone it came unlocked. you must goto a website and give them your imei # that is on your phone. and they will sned you a unlock code upto 2 hours later.. DONT try and guess the code. and you will have to pay a fee but it will be minimal. $3-10
Final UPDATE, i went to rogers and got the phone on a contract for $50 and now i think i will give this to my mother to use for pics and ****. i have not a clue what to do with this thing.

And now it works
How reliable is that, i went out and bought a second phone from rogers and after a couple of days of my old phone not working with any sim card, Now it works with both rogers and Fido. Now i am stuck in a 3yr contract and have 2 of these phones. anyways i will try and get rid of my stupid contract. its only been a couple of days and "buyers remorse" law states that you can get out of any contract within 15 days of when the contract was signed.

Same Here
Strange - I had the EXACT same thing happen to me as well. Funny thing is it happened the same day as your first post about this issue on Jan. 25. I am on FIDO as well and had a working, unlocked i727R I bought off eBay from Basatne Electronics.
It was unrooted and working perfectly for a month and a half. All of a sudden I got ‘no service’ and sometimes ‘unregistered sim’ when I rebooted. I tried 6 different sim cards from FIDO and Rogers that worked on other phones and same thing. I cleared cache and did a reset. Same thing. I brought it to FIDO and Rogers and tried their demo sim cards in it. Same thing.
Finally I called Samsung to sent it back to them for ‘repair’. They sent me a UPS label and I sent it to Service Absolut, Samsung’s repair subcontractor in Montreal. It was there for over a week now. Their communication is terrible – it just says ‘open’ or ‘close’ on Samsung’s tracking website, so I called Absolut themselves yesterday asking for the status/tracking number. They said they were going to ship it yesterday even though my repair ticket online said ‘close’ since last wednesday.
I find this really strange, especially since your phone seems to have done the same thing as mine right around the same time. I figure it was Rogers/Fido that messed up their network somehow. Two working Rogers sims didn’t work in it either. My sim card was working on my old blackberry still. My IMEI didn’t appear in any blocked IMEI lists I looked up.
I just got my phone back today 10 minutes ago and it works again. It says 'full software upgrade and reset' on the repair list I got back, although I didn't mod my phone in the first place. At least I had my backup blackberry. Still pisses me off – I spent hours trying to figure out what was wrong with it and I wiped all my apps when I did a reset, so I’ll have to load them all up again and set up my phone.
Just weird.

And Again...
Well, it seems it just happened again.
After a month and a week or two of working perfectly (same length of time as last time), my i727R now says 'No Service' again for some reason on FIDO network and won't connect to anything except through Wifi.
I didn't install any new software or change any settings when it happened.
It was working one minute, put it in my pocket and a couple minutes later it says 'No Service', even though I have always had service before in the area I am in right now.
Does anyone have a clue what can be causing this?
Network, Software (some kind of timer somewhere that would shut off connection), Malware?
This is driving me nuts - I don't want to have to send it back to Samsung again.
Last time Samsung said they reflashed the software when I sent it back.
I don't know why I would need to do that since it was working just fine and I wasn't messing around with any settings before it started saying 'No Service' - same thing happened last time.

[Q] SGH-I727R on different network

Hey there, my brother recently inheritted someones old Rogers Galaxy S2 LTE. My brother is using MTS which uses the same bands/freqs (same towers in fact) as Rogers and was wanting to use this phone instead of his crappy Nokia.
He threw his SIM card in and got the screen asking for the network unlock key. He went to cellunlocker.net and purchased the unlock key and unlocked the phone.
However with his SIM card in he still doesnt appear to pick up any signal at all. I have an android (GNex) on the same network (MTS) and have never had an issue.
Do I have to flash a non-rogers ROM to get it working? I saw the SKY ICS one and was thinking I might flash that one to try it out. Unfortunately I wont have access to the phone until tomorrow
EDIT: I should have mentioned that his phone is completely stock right now. I have read about "Locked" radios and am wondering if that isnt the cause of our issues. I have heard from other I727 owners who were able to get their phones on MTS

[Q] Changing status of tab to phone

Hi, I have the UK 4G galaxy tab 3 8.0. I've been using a Three network voice/text/data sim in it for a few months, till I tried to go on the the browser and it said 'Your Sim Will Only Work in Your Phone'. Tried everything I could think of to get it to work. I called the network explained that my tab was a phone because I've been making calls off of it. They was having none of it and said my sim will no longer work for data inside my tab....killer!! It's my only source of internet and I haven't got another device to use it with. I was thinking possibly if I root it, there may be a utility which allows me to change what my tab is seen as. For example change it so it's recognised as a phone and then my sim will start working again. It's never going to work again as it is at the moment. I've rooted it before and didn't really want to do it again, because it kept screwing my data connection, I unrooted and it's been fine for weeks. Please someone help! If I have missed any details, sorry.
P.s the tab came from Vodafone UK with a sim contract that is not being used anymore, I bought the tab near enough brand new but still pre-owned.
Thanks anyway

[Q] Taking a Verizon S3 to AT&T

I bought a house and moved.
No service in the house with Verizon.
So, I switched to AT&T.
AT&T told me I would get HSPA+ with my Verizon S3.
Well... I have 2G, voice, and text.
Anyone have an idea of how to get HSPA+ enabled? Is it possible?
I have a custom ROM, but I can flash anything if it would help.

I don't think it's possible, they run on completely different networks (CDMA Vs GSM) and the phones radios are built accordingly.
Sent from my SCH-I535 using xda app-developers app

I'm leaning toward that. Guess I'll upgrade....

Verizon to AT&T and SIM unlock with NO codes
draexo said:
I'm leaning toward that. Guess I'll upgrade....
Click to expand...
Click to collapse
There is a way cant remember where i read it, maybe on the t-mobile forum. I recently bricked my att device and came across a verizon variant and was able to use it for att with out having it sim unlocked just a few hours ago steps taken were as follows:
After swapping the motherboards i factory reset the non rooted verizon device from the settings menu as I was just going to sell it on ebay. I had been using wifi only on a sim locked t-mobile device but the camera was not working so i switched back to the verizon and was prompted to complete the set up after i booted the device with no sim card inside. I got the no sim card message and ran the app Region Lock Away that has a red circle icon and a black unlocked pad lock by chainfire. I was skeptical 1 for the device not being rooted but tried anyway. The app said it was not able to verfiy root and closed; however once I inserted my att sim card without powering off the device i saw signal bars. Now Im not sure the app actually did anything and I might have tried the app before resetting it without success but after checking the network mode in the mobile networks tab it now shows Global as the preferred network. So i started texting people and then calling all with success. Now im still on the edge network and this may not solve your issue but I remember seeing the work around I think it has to do with correcting the APN settings but there is always a way to get things done. Keep looking you will find it. Im just happy to have cell service again but Ill be looking for the thread in a day or so as well.

Forced into an AT&T phone. It worked for 4 days then stopped. Their tech support claims the tap wasn't compatible and they don't know why it worked

I had 2g for those 4 days

I'm always on wifi but noticed my data wasn't working so not an ideal switch but if you are in a bind it does work. I'm still running at&t network on this Verizon motherboard just fine
Sent from my SCH-I535 using XDA Premium 4 mobile app

I don't know what happened but all inbound calls on day 4 went direct to voicemail. I reset phone, flashed different ROM.... Nothing

d2vzw: Unflash from PagePlus procedure

Starting this October, PagePlus is offering 4G/LTE. Initially, I was assuming that all I need to do is plug in an LTE SIM card and activate account, and all will be peachy. However, it seems that by flashing phone to pageplus when it looks like a 3g device, I have messed up some radio settings, and verizon provisioning doesn't work, phone repeatedly keeps trying to call *228. Contrary to that, the other S3, which I didn't flash does not call at all, but instead pops up message box stating that the phone is being programmed, and after a couple minutes it's online . I do not remember what exactly did I program, it was awhile ago . Pageplus support knows that problem, and they are advising anybody who wants to go LTE to bring up an unflashed phone, saying the flashed one won't work
There are folks on kitty forums who offer remote de-flashing for 30 bucks, but no description what actually they do. Does anyone know what the process is? I can get my phone into QPST/DFS. Anyone knows what to do next?
UPDATE: see post #3 for solution

Can't help you with deflashing, but I will tell you that my local page plus vendor did mine for free and it only took him about 5-10 minutes. Maybe yours would do the same. Just a thought.
Sent from my SCH-I535 using Tapatalk

I guess it indeed is simple once you get to QPST mode. I used DFS to program, and the only setting I had to change was RuimConfig = RuimOnly (from NV_ONLY), see screenshot attached. Did not work on 4.0 firmware which I tried to use first, but worked fine on 4.2.1 and 4.1.2.

I got a sim card for my phone. All I did was verify that my phone was on RuimOnly (it already was), then I contacted PagePlus to activate my simcard (you're supposed to do this before you put it in your phone, they say) and they remotely programmed the phone, everything went smoothly. I have 4g data now, no "unflashing" required. Pretty easy. :good:

You put it on your phone before, you want this set up, then you can use the phone, so no problem.

Confirmed
I can confirm this works. I switched 2 samsung galaxy note 2 SCH-i605 from 3g to 4g.
The phones were originally flashed over to pageplus using wireless workshop. This puts them on pageplus as 3g phones. They drop the last digit of the MEID so it is a 14 digit code (3g) instead of 15 digit for 4G.
Here's what I did to get 4G LTE working.
Ordered a pageplus SIM card from pageplus
put the simcard in the phone
Used DFS to change RUIM from NV_Only to RUIM_only
Contacted Pageplus on chat and had them change my phone from 3g to 4g. I'm not sure exactly what they did, but I gave them the 15 digit MEID and the SIM ICCID (printed on the sim card you get, or look in settings, about device, details or something like that, you know where to look. ) The customer service rep said that what you need to tell them is you want to change a 3g phone to 4g. I told them it was back to standard firmware just to make them happy. It seems the RUIM changes is all you need.
Voila! Reboot the phone, give it a minute - it connects to 4G and then disconnects and looks like it has failed, but give it a minute and it comes up with 4G LTE and speedtest.net confirms it is blazing fast.
Loving it!
This is only required for a verizon phone that has been flashed in the past to make 3g work on Pageplus. Not needed on contract phones from verizon that are originally 4g.
Happy downloading!

galets said:
I guess it indeed is simple once you get to QPST mode. I used DFS to program, and the only setting I had to change was RuimConfig = RuimOnly (from NV_ONLY), see screenshot attached. Did not work on 4.0 firmware which I tried to use first, but worked fine on 4.2.1 and 4.1.2.[/QUOTE I did that but i do not have 4g and imwe in a 4g coverage area. using a mxx xt912. any help is appreciated
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Click to collapse

Gift for a friend
hi everyone,
I have a few questions based on my circumstances. I just deactivated a S3 Verizon from PagePlus which was flashed to 3g. I would like to hand my phone off to a friend as he's running a Droid X (!).
1. From what I understand to "unflash" I need to use DFS (cdmatool.com) and set Ruim config to RuimOnly. However, I believe the phone needs to be in QPST mode? I'm not entirely sure how to do this. Can someone point me in the right direction?
2. Since I already deactivated the phone, when my friend tries to re-activate on pageplus (with a new SIM), do we need to contact PP and tell them this device is now 4g?
3. Does it matter that I have a custom ROM running 4.3? I don't think so, but would like confirmation.
I really don't want to mess up this gift.
Thanks for any and all advice!

Dapeche said:
1. From what I understand to "unflash" I need to use DFS (cdmatool.com) and set Ruim config to RuimOnly. However, I believe the phone needs to be in QPST mode? I'm not entirely sure how to do this. Can someone point me in the right direction?
Click to expand...
Click to collapse
In general, this is done via USBSettings dialog, see if this thread helps you to get this menu enabled: http://forum.xda-developers.com/showthread.php?t=2227576

I have a i605 currently flashed to page plus 3g can't write with dfs without spec and I can't seem to get it can anybody point me in the right direction
I'm dumb figured it all out except page plus they keep saying I have to go to a dealer I said I am no longer flash but they keep telling to have a dealer manually flash it.....?
Update got everything working once I was in ruim only I called them at told them I had two phones and gave them the full imied as my second phone then the iccid and voila activation was a breeze