[Q] 4G SIM Card Error - Xoom Q&A, Help & Troubleshooting

I know there are other threads for SIM errors, but I'm thinking this question may not have been cleared up yet.
I have a newly upgraded 4G Xoom. The SIM is not active, but I'm thinking I may sign up for 4G service in the future. I'm getting the error at the lockscreen that tells me that I either don't have a SIM inserted or there's a read issue. I've rebooted multiple times, reinserted the inactive SIM, and still receive the error.
My question is: Is this a normal error considering I have an inactive SIM? If I do want to get 4G service in the future it probably wouldn't be an issue if it were a bad SIM and it just needed to be swapped, but I'd like to get it fixed ASAP if there's a hardware issue with the Xoom considering I just got it back from Motorola for the 4G upgrade.
If this has been posted already somewhere I apologize.

Ask someone you know that has active service, to try their card in ur device. If no error then bad sim or maybe its not reading it because of inactive sim / service.

Related

G2X won't recognize SIM card

Anyone else experience issues with swapping their SIM from their old phone into the G2X? I have reseated mine from my N1 into the phone 3 times, and each time I boot it says I have no SIM card. Pulling my hair out!
I went from an N1 to the g2x and i had the same problem so here is the deal...
the g2x is a 4g phone and it required a new sim card version so i had to trade in the sim card that i have had since my i got my razr in 2005...
so disclaimer to anyone who buys the phone outright, you have to have an updated sim card... just go into tmobile and they will give you one...
mines wont check for sim card at all it keep saying no service even without a sim card it usually say no sim but it just say no service can someone help plz plz plz
Fyi make sure it is a corporate store. Otherwise it could cost ya $20. Customer care might even be able to mail you one...not sure. If your near Chicago I would just give you one of my extras.
Sent from my LG-P999 using XDA App
I reused the sim from my N1 and have had no issues but it was probably a newer version sim since I just got it beginning of last year.
If you have an old T-Mobile phone lying around, try inserting your SIM into that, and using it, then re-insert it into your G2X.
Alright I opened it up and it looked like the antenna cable was a bit frayed near the tip, I attached a few pics. It was connected though so not sure :/
http://imgur.com/i2oH9,5LnGx,n97wZ ( three images)
I have the same issue.
Mint condition G2X does not detect my sim card reads "error while trying to connect to network"
I am running CM 7.2 I have wiped everything and reflashed still no luck.
Add one more to the pile...
I also recently began having this problem, but my device previously worked fine.
I have tried Restoring to Factory V21Y with Mar 11 Baseband
Flasing a GB Based ROM & Stock Kernel
Flashing CM9
Flashing CM10
Entering *#*#INFO#*#* Phone Info and modifying frequency band (No Go).
At one point I was able to read the Phone # from the SIM card, but couldn't get a lock on Netowkr. I can visually detect T-Mobile and ATT in Mobile Networks.
I have tried this with 4G Enabled SIM Cards and older T-Mobile SIM Cards.
I have tried Simple Mobile, Straight Talk, & ATT SIM Cards.
I have tried using None APN's, the TMo/Simple Default APN's, and Modified APN's for Straight Talk & Family Talk.
No avail.
Any ideas?
I had the same problem. A new SIM card fixed it.
RE:
Core Memory said:
I had the same problem. A new SIM card fixed it.
Click to expand...
Click to collapse
I gave my friend my old G2x because she was switching from AT&T to TMobile. She went to the TMobile store and got a new SIM card and her old AT&T number transferred to it. It works on her old iPhone but when I insert the SIM card on the LG G2x , it keeps saying 'no SIM card inserted'....do i need to flash a certain baseband on it and/or setup a custom APN for it? I am on the stock ROM thats rooted...
Any help is much appreciateed
Sorry for not replying until now but I rarely visit here anymore. My G2X had a bad Sim card which a new Sim fixed. I just had to wait until the network could authorize with it.

[Q] Foreign SIM card not being read by rooted phone

Hey all,
I'm trying to use a foreign SIM card (a prepaid card from Taiwan Mobile), but my phone says "No SIM card in phone" on the lock screen. I'm sure my phone is rooted and I flashed Android Revolution HD 5.2.6, but the lock screen is still giving me the same message. Is this a problem with the SIM card, or my phone? I also had the same problem when I got the phone, when I upgraded with a dumbphone from AT&T to the Inspire 4G, and AT&T had to give me a new SIM card. Also, the contact size for the SIM card is smaller on my AT&T 4G SIM, so I don't know if that might be of any help. Thanks!
My first assumption would be that whatever language the card is written in, the phone isn't able to translate. But I don't even know if that's a real thing or not either. So this post was pretty much pointless in helping you understand your problem.
I'm sure someone smarter will be by soon with some insight.
*insert sig here*
Not all GSM phone services are 100% intercompatible. I don't have any idea how you would find out, but a good start might be to call a rep at Taiwan Mobile.

[Q] [Xoom2] APN disappears. Sim card troubles. MZ616

I visited my sister in Germany and she gave me a Vodafone branded Xoom2 UMTS (MZ616). I was able to flash it with ICS and everything works great.
I got a new sim card from ATT (I live in ghe US)and put it into the tablet. This is were my issues start.
I see no APNs. When I add an APN it disappears or I cannot save it.
I tried everything. Sometimes when I try to manually search for the network ATT pops up. When I select it, it will show bars for a short time or i may get a "sim not authorized for this network error.". When I add data roaming, it may shows the ATT APNs for a short time.
I also get an error when trying to add a simlock I get a "no sim card" error.
I am stumped. I searched the various forums and I get a lot of inconsistent info.
Is this issue related to the tablet being locked? Does that even matter? Is this some sort of region issue? Do I need to unlock the bootloader or should I use a different ROM?
I do not think the sim card is faulty.
Any help appreciated.
Sim Card Size????
So I compared the old Vodafone sim card with the 'new' AT&T sim card. The plastic outline of both cards seesm to be micro. However, the gold plated contacts on the new cards are definitely micro sim, but the old Vodafone card seems to be old school size (not sure what that size is called). If the size of the gold plated material matters, then this may be may issue. Like I said, above, when I first boot into the tablet with the new sim card I will have bars for a short time, but they disappear and the sim card does not seem to be recognized.
Can someone knowledgeable on sim card size matters as they pertain to the Xoom2 please weigh in and let me know if this is the issue?
I took a pic of the sim cards. From left to right: Old Vodafone sim, new AT&T sim, 2FF (mini sim card) for size comparison.
Please post all questions in the Q & A section. Thanks! Thread moved.
Sent from my Galaxy Nexus using Tapatalk 2

Sim error upon waking up

I notice lately I have been having sim card errors when I wake up the morning. I am having to restart the phone to get connections working. This was not a problem before is this baseband related or something?
I've had them for a long time and whenever I've talked with T-Mobile, they tell me it's a common issue with the phone.
I read about it quite a lot before getting my S. Apparently the S is kinda sensitive with sim cards.
My card, for example, didnt work at all in the S. I had to get a new one from my provider.
So, Id say you need a new sim card. I wouldnt call it an "issue with the phone", its just picky
I'm on my 5th sims from my provider. Lol it's a know issue, especially with the tmous version. At least that what the tmob tech told me
Sent from my HTC VLE_U using Tapatalk 2

Curios: Intermittent “Not registered on network" - anything other than bad SIM?

I’m rooted using qkster’s Heimdal 2.3.6 for almost a year... very few problems.
Lately I have a problem that occurs intermittently upon reboot.
1 – It shows a grey SIM card icon near upper right (not the blue sd scanning that always happens)
2 – Cannot make or receive calls, get message “not registered on network”.
3 - Can't use SMS or data
The only way to fix it is to reboot. Some reboots are successful, some not.
If successful, works fine until next reboot.
If not successful, doesn't work at all until next reboot.
The behavior only changes during reboot.. I guess maybe that’s when SIM card info gets red into memory?
I tried removing/reinstalling SIM card. Pressing on it during boot (other phones apparenlty have looseness of SIM card)..no change.
When the problem was really bad (9 out of 10 reboots come up bad), I swapped SIM cards with my daughter. **The problem followed the SIM card*.... Two successful reboots on my phone with her SIM card, Two unsuccessful reboots on her phone with my SIM card. Swapped my SIM card back into my phone and again unsuccessful reboots 9 times out of 10.
I called AT&T, they said go to their store and they’ll give me a new SIM card for free (which I’m planning on Friday)
To me, “intermittent” SIM card is a satisfying answer. It doesn't seem that software problem would create intermittent behavior like this. I haven’t really tried flashing new modem or playing wiht IMEI recovery stuff. ... I’m not tremendously familiar with those and don’t want to mess anything up when I have a success path to just swap SIM cards.
At this point I'm just curious and hoping to go into AT&T armed with more info.
Do you think is't a bad SIM card? Or is it instead maybe something simpler that could have been fixed without swappig SIM card?
And did my rooting the phone or other activities contribute to it?
electricpete1 said:
I’m rooted using qkster’s Heimdal 2.3.6 for almost a year... very few problems.
Lately I have a problem that occurs intermittently upon reboot.
1 – It shows a grey SIM card icon near upper right (not the blue sd scanning that always happens)
2 – Cannot make or receive calls, get message “not registered on network”.
3 - Can't use SMS or data
The only way to fix it is to reboot. Some reboots are successful, some not.
If successful, works fine until next reboot.
If not successful, doesn't work at all until next reboot.
The behavior only changes during reboot.. I guess maybe that’s when SIM card info gets red into memory?
I tried removing/reinstalling SIM card. Pressing on it during boot (other phones apparenlty have looseness of SIM card, not change.
When the problem was really bad (9 out of 10 reboots come up bad), I swapped SIM cards with my daughter. **The problem followed the SIM card*.... Two successful reboots on my phone with her SIM card, Two unsuccessful reboots on her phone with my SIM card. Swapped my SIM card back into my phone and again unsuccessful reboots 9 times out of 10.
I called AT&T, they said go to their store and they’ll give me a new SIM card for free (which I’m planning on Friday)
To me, “intermittent” SIM card is a satisfying answer. It doesn't seem that software problem would create intermittent behavior like this. I haven’t really tried flashing new modem or playing wiht IMEI recovery stuff. ... I’m not tremendously familiar with those and don’t want to mess anything up when I have a success path to just swap SIM cards.
At this point I'm just curious and hoping to go into AT&T armed with more info.
Do you think is't a bad SIM card? Or is it instead maybe something simpler that could have been fixed without swappig SIM card?
And did my rooting the phone or other activities contribute to it?
Click to expand...
Click to collapse
you can try flashing a cwm-modem and then retry
you can try flashing one of zen's new kernel and retry
a factory reset and odin or heimdall back to stock and check for problems
sometimes it's the software corruption that reports the sim as invalid
qkster said:
sometimes it's the software corruption that reports the sim as invalid
Click to expand...
Click to collapse
Thanks qkster.
I'm thinking it must be the SIM because the problem followed the SIM to another phone and back.
I'm just not sure exactly what exactly is stored on the SIM and whether it could have been corrupted by my phone's actitivies and whether it's fixiable without SIM resplacement.
Again, just curiosity.
electricpete1 said:
Thanks qkster.
I'm thinking it must be the SIM because the problem followed the SIM to another phone and back.
I'm just not sure exactly what exactly is stored on the SIM and whether it could have been corrupted by my phone's actitivies and whether it's fixiable without SIM resplacement.
Again, just curiosity.
Click to expand...
Click to collapse
Np..sry I didn't notice that you had use the same sim and got the same problems on a different phone.
resolved
UPDATE - I went to AT&T today – new SIM card, phone works fine on three-in-a-row reboots. That seems to confirm bad SIM was the problem, although I don’t know why... seems like an uncomon problem for Infuse.
I asked the rep what might be the cause, he said it just happens every once in awhile.
It took me awhile to figure out.
Googling the error “not registered on network” gave nothing on Infuse forums (apparently it’s not a common failure... I’m just lucky).
Google search on that error led to lots of other devices including lots of HTC phones that had problems with the holder that could be corrected by inserting paper or tape as a wedge to put pressure on the SIM card. I actually seemed to have success with that once (because the problem was intermittent), so that kept me on that wrong track longer than I should have been.
Anyway, it’s here now for posterity for whatever future Infuser searches “not registered on network” and pretty straightforward in retrosepct. The key test to confirm of course is swapping SIM to another phone.

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