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Hello, this is my first post her and my first experience in doing this.
I bought a 6800 off of eBay, It is the CDMA version w/ GPS, a Bell Mobility phone. I was under the impression that MTS (Manitoba Telecom Services) was still aligned with Bell, but it turns out that hasn't been the case in over 6 months, so now I may as well try and hack my phone. They don't use the same data lines anymore either.
I took it to MTS to get it activated. The calling and text messaging works just fine, but the data part does not work AT ALL. It gives me an error message "Can't connect for an unknown reason. To check your connection settings and change them if needed, tap Settings. If the problem continues, reset your mobile device according to your manufacturer's documentation and try again."
I've been doing some reading on the wiki and other posts here, and it's a lot to absorb for someone who is completely new to this. I THINK all I have to do at this point is unlock the phone, change the carrier to MTS, and enter the akey (which I could possibly get from MTS).
Does this sound about right? I realize I could put a custom ROM on and a new Radio ROM, but if I don't need them just yet I would rather see if this will work.
jordan-s said:
I realize I could put a custom ROM on and a new Radio ROM, but if I don't need them just yet I would rather see if this will work.
Click to expand...
Click to collapse
i feel a custom rom is the first thing to do to these phones.... sorry cant help with the other questions......
Can you call them and find out how their data connections work?
Like with me, for Sprint, I have to dial #777. You might just have to edit your connection settings
Can't speak directly to MTS, but on VZW, what I do is an esn change off the phone to my backup...flash the custom rom, then esn change back. This takes care of akey and provisioning.
Hi,
I purchased a Chinese Android mobile which has the MTK6573 chipset. It is called a Star A3.
Love the phone however I regularly see the alert/error "Restricted access changed" in the status bar and the signal drops off both SIMS. If I pull down the status bar and check details it says "Voice call service blocked".
What is interesting is that it is always the Vodafone NZ SIM card even if I swap cards between SIM slots. Other SIM is 2Degrees.
I've searched the internet but there seems very little info on this subject other than to say that some HD9 users have had the same issue and have Spice Mi 350n users.
Some suggest it could be a IMEI issue but I'm not so sure.
Does anyone have any ideas?
Can provide more info on request.
Thanks in advance.
*** Additional info... I've turned off my SIM data connection which was linked to my 2Degrees SIM and now both SIMS manifest the same error. If I re-enable data on the 2Degrees SIM only the Vodafone SIM gives the error ***
I have the same issue on an IHTC HD2 bought on fastcards with the same chinese android. I don t know what the problem is. Everytime I turn the phone on there is available network, but after 5sec it gets blocked for good. I only have one SIM card and data connection doesn't work. This is freaking annoying ...
Thanks for the attention
Sounds like a slightly different issue than the one I have as my phone will reconnect and I can use it but it frequently drops off.
Perhaps turn your phone on without the SIM card in it and get your IMEI numbers.
You can google websites to check your IMEI numbers are valid. Perhaps they are not valid and your carrier blocks the phone?
Please use the Q&A Forum for questions Thanks
Moving to Q&A
Have found one other thing...
If you go into mobile network settings and change the network mode from say Auto to WCDMA only or GSM only you receive the "Restricted access changed" error notification immediately so I'm guessing it is related somehow?
It would appear the "Restricted access changed" notification appears whenever the network mode is changed from 2G to 3G either automatically or manually.
Images attached.
Occam's Razor strikes again
I had this same problem with an unlocked phone on AT&T network. Seemed to happen totally at random. It was driving me nuts, and nobody from AT&T could figure it out.
It occurred to me that the problem might be physical when the phone failed to recognize the SIM at all one time. Seems to be that the SIM card wasn't making good contact with the socket. I put a few pieces of scotch tape on the SIM card so that it fit a lot tighter and made really good contact, and I haven't had a single problem since.
(I don't know enough about it to explain why this worked for me, but I theorize that a loose or weak connection somehow fails out and introduces some kind of garbage data that the phone and/or network doesn't like, and it gets blocked as a result.)
Thanks for the post.
The problem is that between me and my friends there are about 5 of the exact same model all doing the exact same thing.
And ALWAYS when you go into network settings and change from say AUTO (WDSA/GSM) TO GSM ONLY.
Cheers
I'm curious to know if taping the SIM card so it makes better contact solves the problem for you. Does this problem happen with different SIM cards of different brands and networks or do you and all your friends have the same?
Hi again, tapping the SIM card does not appear to make any difference. I've also tried thickening the SIM card by sticking a layer of tape to it.
Seems to happen in low reception areas where the phone may lose signal and then reconnect to the network... I guess similar to how it is replicated by changing network mode.
Can you repliacate it on your phone by change the network mode? e.g. auto wcdma/gsm to gsm only
Hi i had the same version Star A3 iam frome Egypt and had the same problem i tried to put different sims from different agents but the same problem any person can tell me how to connect my android mobile with pc or from where can i get its driver
Thank you
Dr.Ahmed Hassan
I just changed my htc desire to a one S. Same Sim. It keeps popping up 'preparing sim' and 'restricted access changed'. Never did this in the desire. Only the handset has changed. It's not a poorly fitting sim. You can shake, bash, etc. no effect. It'll happen quite often. Could certainly be as others state when switching from 3g to gsm etc.
It seems I spoke too soon. My phone (Blu Studio 5.3) started doing it again. I can produce the "restricted access changed" message by switching from WCDMA/GSM Auto to GSM or WCDMA only and from WCDMA to GSM or vice versa. It's something with the switchover.
I have noticed that I get Restriction Access Changed message only when 3G is turned on. I turn 3G off and the phone does not lose the network any more. Yet to figure out why it happens...
This started happening to me today and like the post above mine only after switching 3G off does the restriction go away. This is annoying but I'm about to reinstall my rom and see if that helps.
Just had the same problem on my SGS3. Only thing that fixed it was a powerdown and a battery pull. Hope it doesn't happen again.
Same problem
I have tried putting in 2 different sims. i bought a fake iphone 5 from china. it is saying no service: restricted access changed. Please help!!!
I'm getting this today with a Nexus 4 running on O2 UK. I've never seen it before on any phone and have been on O2 for years.
I sometimes can't dial out and calls in are going to answer phone. Also, texts are not getting through.
Airplane mode off/on seems to work.
The weather is appalling here today (Snow) I wonder if it is to blame.
I have contacted O2 and spoke to a guy (who knew a lot less that I did about the device/network). Anyway, a new SIM is being sent out. We'll see.
---------- Post added at 03:16 PM ---------- Previous post was at 03:06 PM ----------
Update. My wife's phone also not working (O2) although she is not getting the "Restricted access changed..." error in her notification tray.
I can confirm this is happened on my Nexus 4 also. cell reception disappears for a moment then comes back. after that all seems to be working as normal and hasn't caused any problems with me, except for the mystery and intrigue. does anyone know what causes it? I receive the notification "restricted access changed" and then when i pull down the notification bar to look at the notification, the notification is GONE ! it does not stay in there.
I'm definitely putting my Nexus 4 issue with this down to the heavy snow that day. It hasn't happened since.
New Nexus 4 here with t-mobile prepaid. Had it happen last night when I got home for the first time. It was showing 2 notifications, one for voice and one for data. When you click them, they go away. Saw them appear a couple more time through the night and this morning they were also showing.
No snow here though...
It's amazing the amounts of items that are on this, but without any solution. And the cast is bothering me to keep him for 2G (although the battery is good for: -
So here, I want to comment very detailed experiences, all they did before the 3G phone runs out.
I also want to try and see if I am not alone, go to: Settings / About Phone / Status and look where it says "Type Mobile Network." This do it once with the SIM card and then put the SIM card no.
When I do it without the SIM card in "Network Type" I get "UMTS", which is what you should say to run the 3G, if I remember correctly.
When I do it with the SIM card in "Network Type" I get "EDGE", which is what we do not want to say ..
Also when I put in "Flight Mode" (Settings / Connections wireless) appears as Type Mobile Network: UMTS (Put it in flight mode it does is turn off the radio telephone, cuts all signals)
Reading around, I saw someone mention something about EFS folder that contains the frequency and the IMEI of the phone (admittedly not very well that this folder is enrealidad EFS). The look in the phone and not. If anyone has a working 3G, PLEASE, find this folder, copy it to the Root Explorer to the SD card and if possible, upload it to any server. (Not that this folder contains files, but the IMEI is not what interests us, and do not know if anyone will want to hang your IMEI on the internet)
Another thing I read is of the NPC. The set number of times. But I say they are misconfigured the NPC does not make the phone can not have telephony network without being in 2G, at most not be able to get online, but that does not always required to take to use 2G networks.
Probe many tutorials to no avail, so here I need great minds to join the forum and help us think about how to fix this and if possible, make a fix to upload to the forum.
I thought about testing a virtual machine for Android, but without a cellular connection on the PC, half would be useless. Like I'll see browsing files in a clean install on the PC to see that match.
Anyone who can bring something, please, would be helpful. We are several with this problem of having to leave the phone to use only 2G networks to work. Nothing is impossible and everything has a solution, although not enough, if we give hard (we can) all, we will solve.
Of course, thank you very much and greetings to all!
I picked up an unlocked TMo One in New York last week. I used it there with my Norwegian SIM with no problems.
Back home, I get "No Service" using the exact same SIM-card. Using the *#*#INFO#*#*-menu, I can see the SIM-card is recognised because it displays my carrier in the "Current Network" field. I am suspecting the TMo-infused Sense OS to reject my card, since to my understanding the phone is compatible with EU networks. Will i be fine if i flash another ROM, like the stock GPe, and get rid of the TMo-stuff altogheter, or is there another rock in the road here?
I used my Tmobile HTC One with the stock ROM in Norway using a Telenor SIM and in Greece using a Vodafone SIM.
I would make sure you have the proper APN info (I can't remember the appropriate one for the Norwegian carriers). I believe it should work without issues (mine did). If it worked with that SIM card already, it's not locked and it's not rejecting it.
Also, I found that when I returned home to the US, I had to choose Settings -> Mobile Data -> Network Operators and choose Select Automatically (even though it was already chosen). Maybe you need to do that too.
Currently I am running Android Revolution and that also works fine with my Norwegian and TMOUS SIM cards.
Good luck!
Thanks! I've at least made some progress. I tried setting Network Selection to automatic, and got reception, however only for about half a minute. I then tried adding my provider's APN info. This has given me permanent data connection, but still no GSM reception for texts and phone calls. I do get 2g data when in low coverage areas. I am finding this weird. Can anyone shed some light?
Okay. Just wanted to post my latest findings - if others are experiencing the same issue. I've flashed the latest Google Edition RUU, to see if the TMo ROM was causing it. But i still don't get GSM coverage. Data still connected on both 2G and 3G (haven't been within 4G coverage yet..)
When flashing I also updated firmware to latest.
Phone info says Current network: "NetCom" (my home network) GSM service: "Emergency Calls only" (I tested this, and I am able to place the call to emergency services) and GPRS service: "Connected" (I am typing this on my data connection via WiFi-tethering, actually)
The status menu shows this: Service state "Out of service" and My phone number "Unknown".
If anyone can come up with a theory, I am all ears..
laberkis said:
Okay. Just wanted to post my latest findings - if others are experiencing the same issue. I've flashed the latest Google Edition RUU, to see if the TMo ROM was causing it. But i still don't get GSM coverage. Data still connected on both 2G and 3G (haven't been within 4G coverage yet..)
When flashing I also updated firmware to latest.
Phone info says Current network: "NetCom" (my home network) GSM service: "Emergency Calls only" (I tested this, and I am able to place the call to emergency services) and GPRS service: "Connected" (I am typing this on my data connection via WiFi-tethering, actually)
The status menu shows this: Service state "Out of service" and My phone number "Unknown".
If anyone can come up with a theory, I am all ears..
Click to expand...
Click to collapse
Have you tried taking the phone to your provider? Maybe you need an update which or setting which they can provide.
I find it strange that it wouldn't recognize your phone number, usually that's a sign of some type of incompatibility with the phone and the network.
Sent from my HTC One using Tapatalk 2
I have contacted my provider to see if there's anything they can do. But they're playing a little hard to get.. I was afraid there would be an issue with compatibility at first, by since my data connection is all right, I'm not so sure. Also erdelyt above here says he has used the TMo phone in Norway without trouble. He has another provider, however. They run their own network, so I will be trying with one of their SIM cards next, if my provider NetCom aren't of any help. Thanks for your help so far. I'll be posting my findings further!
So, I got to try a Telenor SIM card the other day, and the issue is still there. Although, with that card the phone number was read and displayed in the phone info menu. The owner of the card suggested there was an unlock issue - but I did make calls with my phone and SIM card in the US, so I don't see how that could be.
So that's a small step further, but now I just have to wait to see what my carrier says..
I changed the title for this thread after my findings.. I got a new SIM-card for my carrier, and i got coverage to make one phone call, but after i hung up, it was gone. I am really in the dark here.. It can of course be a hardware fault, but that's a bit strange for an entirely new product..
My smartphone won't log in to my network. It recognizes my SIM - I have to enter my PIN - but doesn't log in. I can manually search for and select the network, but the registration still fails.
The SIM works in my other phone. I've already tried resetting the phone and flashing the firmware.
I'm using a Sony Z3 (didn't post in its sub forum because I think it's a general Android issue).
Can anyone help me out here? Thanks.
Edit: It doesn't log in at all aka no bars. Also, I've noticed it will only find my network when I turn on LTE, Not GSM or 3G. Not sure if that's relevant though, might just be bad coverage.
Hey guys, I really need help here. No one has anys ideas?
I've pretty much narrowed it down to the phone not recognising the GSM/WCDMA bands since the factory reset in the MM beta. Is that even possible (if so, any way to verify?)? If that's the case, any way to re-enable the bands? Thanks.