Develop Bugs

no sim card error..

about 3-5 times a day, I'm just using my phone(Verizon gnex) and it suddenly just says
no sim card detected. and it gives me an option to restart. what I usually have to do is turn it off. pull battery out. take out sim card and reinsert. then boot up to make it work.
I haven't really flashed in awhile so I don't think its my ROM problem. I've been running liquidsmooth beta 2 from the day it came out but this problem has started about a week ago.
is it a problem with my sim card? please help me fix this issue...

Either bad SIM or you have dirty/broken pins in the SIM tray. Check that then talk to Verizon.

how do I check if mine is broken?..

bluemoon1221 said:
how do I check if mine is broken?..
Click to expand...
Click to collapse
Well it looks pretty obvious if you see one. One or more pins are just doesn't look right if it's broken. If you haven't noticed anything abnormal about your SIM tray, I would assume that the SIM tray is fine.
Also have you dropped it recently? If you have, it might be one of the internal that is broken. This happened to me once and had to pay 150$ to repair it. If you have same problem as I had, then your signal should decrease over time and then not read the SIM at all...
If you didn't dropped nor SIM tray is fine, I'll assume there's a problem with the SIM card itself.

kyokeun1234 said:
Well it looks pretty obvious if you see one. One or more pins are just doesn't look right if it's broken. If you haven't noticed anything abnormal about your SIM tray, I would assume that the SIM tray is fine.
Also have you dropped it recently? If you have, it might be one of the internal that is broken. This happened to me once and had to pay 150$ to repair it. If you have same problem as I had, then your signal should decrease over time and then not read the SIM at all...
If you didn't dropped nor SIM tray is fine, I'll assume there's a problem with the SIM card itself.
Click to expand...
Click to collapse
Sorry for the late reply but if I go to Verizon, will they give me a new sim card if I ask for one?
would they care if I'm on a custom ROM?

bluemoon1221 said:
Sorry for the late reply but if I go to Verizon, will they give me a new sim card if I ask for one?
would they care if I'm on a custom ROM?
Click to expand...
Click to collapse
I'm not really sure. I think you can replace the SIM card, but I think you have to pay for it...
Swyped on my Galaxy Nexus running AOKP with Franco Kernel, overclocked to 1.4GHz

I used to have that problem. Have you had the PUK password input pop up. Or sim security on?
W/ security Id have to pull the battery and pop out/in the sim after Id been on airplane or screen off for period of time
Sent from my Galaxy Nexus using xda premium

DZ Not finding the SIM

Hey,
My phone is no longer recognising / finding a SIM card.
I was testing a different sim card in my phone and when I inserted it I couldn't get any network so I put my sim card back in and it fails to find a network aswell.
How can I test/find out fully whats wrong, I'm assuming it's hardware does anyone know how I can check the hardware and maybe potentially fix it, the phone is out of warranty as of two months ago.
Thanks
- Hy

Bump
Extra text to get past character limit.

Does it actually say no sim on the screen?
Sent from my HTC Vision using xda app-developers app

Warbuff said:
Does it actually say no sim on the screen?
Sent from my HTC Vision using xda app-developers app
Click to expand...
Click to collapse
Or if it isn't...sounds like messed up radio, or hardware problem, such an antenna.

Have you tried that sim in another phone? Or another sim in your phone. Could be something as simple as a dead sim, or something a little harder like needing to update your radio, or something much wors, like a dead radio or faulty hardware
Sent from my HTC Vision using xda premium

I had an old sim that started being unrecognised in phones and what I had to do was put a little piece of paper bewteen the top of the sim and the holder to get it to work.
Sent from my G2 running the random rom of the day.

Warbuff said:
Does it actually say no sim on the screen?
Sent from my HTC Vision using xda app-developers app
Click to expand...
Click to collapse
Yes sir it does say no sim.
I have tried a different sim and I have tried my sim in someone else phone, its not the sim card what has a problem.
Ive switched roms does that update or fix radio issues?

Hyflex said:
Yes sir it does say no sim.
I have tried a different sim and I have tried my sim in someone else phone, its not the sim card what has a problem.
Ive switched roms does that update or fix radio issues?
Click to expand...
Click to collapse
no changing roms wont change your hardware, if you want to see if changing the radio helps i made a thread on changing the radio and other firmware via fastboot:
HERE (post #5 for radio)it can also be done via a pc10img.zip flashed through hboot but at least to me the preferred method is with fastboot.
if its a firmware issue this will fix it
i doubt its rom related but of course trying with a known stable rom is best
doubt its an apn issue as "no sim" means no sim not incorrect sim
you have already tested your sim in other phones and other sims in yours, so its safe to rule out a faulty sim card
if its hardware then chances are the sim isnt connecting to the motherboard, either the pegs pushing against the sim arent making contact or the slot the sim goes needs to be resoldered in place (not fun)
possibly other issues causing this but start with the easier, less intrusive, possible fixes and move up
good luck!

demkantor said:
no changing roms wont change your hardware, if you want to see if changing the radio helps i made a thread on changing the radio and other firmware via fastboot:
[URL=" (post #5 for radio)[/URL]it can also be done via a pc10img.zip flashed through hboot but at least to me the preferred method is with fastboot.
if its a firmware issue this will fix it
i doubt its rom related but of course trying with a known stable rom is best
doubt its an apn issue as "no sim" means no sim not incorrect sim
you have already tested your sim in other phones and other sims in yours, so its safe to rule out a faulty sim card
if its hardware then chances are the sim isnt connecting to the motherboard, either the pegs pushing against the sim arent making contact or the slot the sim goes needs to be resoldered in place (not fun)
possibly other issues causing this but start with the easier, less intrusive, possible fixes and move up
good luck!
Click to expand...
Click to collapse
Tried a new radio, problem still exists. It's hardware

Hyflex said:
Tried a new radio, problem still exists. It's hardware
Click to expand...
Click to collapse
Looks like you might need to send it in for repairs or sell it as is and buy a new one. Can't think of anything else to try.

[Q] CDMA Screens

Anyone know if the screen from a sprint Galaxy Nexus phone can be used on the verizon CDMA model?

Noooo. It takes a lot of modifying to get the parts to fit. I didn't personally do it, but there's a thread here about someone who did. He ended up getting it finished, but it was a lot of trouble. I'll go look for that thread for you now and edit my.post when I find it...
Edit: can't find the thread
All I know is the parts do not just fit. You need to do some fabricating to get the screen to fit

RoyJ said:
Noooo. It takes a lot of modifying to get the parts to fit. I didn't personally do it, but there's a thread here about someone who did. He ended up getting it finished, but it was a lot of trouble. I'll go look for that thread for you now and edit my.post when I find it...
Edit: can't find the thread
All I know is the parts do not just fit. You need to do some fabricating to get the screen to fit
Click to expand...
Click to collapse
Are you sure that's not from CDMA to GSM well the other way around? From what I know the Sprint and Verizon Nexuii are pretty much the same.
Sent from my Galaxy Nexus using Tapatalk 2

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If you ask me, GSM, CDMA Verizon, CDMA Sprint, they're all the exact same, except for the radios, antenna ports and the SIM card slot...
Why wouldn't they fit, they're all 4.68", right?
Don't rely on me lol, I have no idea...

jimmyco2008 said:
If you ask me, GSM, CDMA Verizon, CDMA Sprint, they're all the exact same, except for the radios, antenna ports and the SIM card slot...
Why wouldn't they fit, they're all 4.68", right?
Don't rely on me lol, I have no idea...
Click to expand...
Click to collapse
No. The gsm and cdma ones are different. The connector cables are in different places
Sent from my Galaxy Nexus using Tapatalk 2

Gotcha. I think I've said this awhile ago, but that's an awesome signature lol.. Hate it when people ask that question...

The last time i checked Sprint's nexus don't have a sim card slot, so the innards should be different too.

It seems that most of these replys are talking about using a CDMA screen on a GSM phone or a GSM screen on a CDMA phone. I think we can all agree that without a lot of work this is not possible. However has anyone actually ever tried using a screen from the Sprint Galaxy Nexus on the Verizon Model? I haven't been able to find any post indicating that it has been tried.

gverrault said:
It seems that most of these replys are talking about using a CDMA screen on a GSM phone or a GSM screen on a CDMA phone. I think we can all agree that without a lot of work this is not possible. However has anyone actually ever tried using a screen from the Sprint Galaxy Nexus on the Verizon Model? I haven't been able to find any post indicating that it has been tried.
Click to expand...
Click to collapse
i would image it is different. the sim is not removable so i'd imagine the rest is different due to this.

GSM SIM card mode for Sptint Glaxy Note II?

Is any one brave enough to perform this mode on their new SGN II?
http://forum.xda-developers.com/showthread.php?p=32593285#post32593285
I believe the little metal shield near the microSD slot is Sprint SIM-chip - it in the same spot as SIM slot on other versions of SGN II and it looks similar to the one in the above Motorola phone.
There is a dual SIM adaptor for this phone here:
http://forum.xda-developers.com/showthread.php?t=1952770
so theoretically it could be used to split the connection with Sprint SIM-chip and another real full size SIM

I would love to see the same thing. I was thinking about moving to the Galaxy Note 2 until I read about the embedded SIM. I hope Sprint backs away from this trend or at least someone can hack the Note to allow for SIM switching.

asuh said:
I would love to see the same thing. I was thinking about moving to the Galaxy Note 2 until I read about the embedded SIM. I hope Sprint backs away from this trend or at least someone can hack the Note to allow for SIM switching.
Click to expand...
Click to collapse
If someone can show the pcb board I will start to see if the sim slot can be modded back on to the phone but its looking like i have to wait to get my own to see if i can mod it

internals taken with an S3 and shared via s-beam :good:
http://imageshack.us/a/img254/186/20121030103739.jpg
http://imageshack.us/a/img12/5797/20121030103720.jpg
http://imageshack.us/a/img685/9834/20121030103733.jpg
http://imageshack.us/a/img259/1346/20121030103716.jpg
http://imageshack.us/a/img141/9830/20121030103704.jpg
Some are slightly blurry but hope this helps, btw this thing comes apart just like the S2

Nice photos, can you make a video to show exactly where the sim card is and how it's embedded? Is it soldered or is it just built into the pcb board?

asuh said:
Nice photos, can you make a video to show exactly where the sim card is and how it's embedded? Is it soldered or is it just built into the pcb board?
Click to expand...
Click to collapse
You will not see a real SIM card if that is what you expect yo see - It's an ASIC microchip.
the "SIM-chip" is clearly visible one of the posted pictures:
http://imageshack.us/a/img259/1346/20121030103716.jpg
It is right next to the white letters SPH-L900
And as you can see it is almost the same as in Motorola Photon phone in the original thread:
http://forum.xda-developers.com/showthread.php?p=32593285#post32593285
First picture on the right (also has 880120000 on top) - just a different version
That original thread has couple videos with removal procedure, it would be exactly the same here.
Darkendvoid88, Thank you for posting pictures!!!!!

Ah, thanks for the clarification. Very daunting but at least I know it's theoretically possible. If only this was more practical!
It appears that you'd have to have the phone taken apart just to use the foreign sim card, which is impractical. Maybe it could be stuffed below or above the battery, of course assuming the little wires could fit through some crevice or crack somewhere in the back. Otherwise, this type of hack basically just makes it possible to find your favorite foreign sim card, stick it in and close the device back up.
When I traveled around Germany and the UK this summer, it was super convenient to just switch to the new sim when I needed but I don't see that this will be possible even with this type of hack. Damn!

The op just has it set up like that because the photon is sealed and has a "non removeable" back. There is little to no room for the sim reader. An extended battery back might make this easier for us. Also if anyone has ever taken apart an S2 there is a clip next to the battery terminals. Ours is the same dissassembly process and that clip could be broken off to allow for easy wire routing.
Sent from my SPH-L900 using xda app-developers app

Not too be noob-ish, but this is possible, right? Because if not I just wasted $300 :/

Darkendvoid88 said:
The op just has it set up like that because the photon is sealed and has a "non removeable" back. There is little to no room for the sim reader. An extended battery back might make this easier for us. Also if anyone has ever taken apart an S2 there is a clip next to the battery terminals. Ours is the same dissassembly process and that clip could be broken off to allow for easy wire routing.
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
looks like the sim reader would go right in same place as the GSM sim version either trim the sprint case to model it the same as the GSM sim version or buy a GSM sim replacement case.

nazman23 said:
looks like the sim reader would go right in same place as the GSM sim version either trim the sprint case to model it the same as the GSM sim version or buy a GSM sim replacement case.
Click to expand...
Click to collapse
You can't simply replace the chip with SIM card slot. You will lose Sprint LTE. To make it right you's need to solder a dual SIM adapter instead of the chip, then solder chip back in to micro SIM slot of the adapter and use the regular SIM slot for other SIM you might want to use. The software that comes with an adaptor will help you switch between chip and the SIM

nazman23 said:
looks like the sim reader would go right in same place as the GSM sim version either trim the sprint case to model it the same as the GSM sim version or buy a GSM sim replacement case.
Click to expand...
Click to collapse
No u are exactly correct that chip controls sprint lte access but the good news is a secondary sim slot can be placed directly over it without much case modification you just have to wire it up and remove the metal block from the pcb cover Case also wireless charging is definitely in play due to the pcb is wired for it a lot of hardware modification promise
Sent from my SPH-L710 using xda app-developers app

leond said:
You can't simply replace the chip with SIM card slot. You will lose Sprint LTE. To make it right you's need to solder a dual SIM adapter instead of the chip, then solder chip back in to micro SIM slot of the adapter and use the regular SIM slot for other SIM you might want to use. The software that comes with an adaptor will help you switch between chip and the SIM
Click to expand...
Click to collapse
I am not a fan of the Iphone, but my wife has the 4s and I was able to call sprint to have them unlock the phone so we can use it overseas with another sim card. With that being said is the Iphone the only phone that has the slot to easily take out the card and replace it with another card if traveling overseas?

I wonder if the pcb boards or internals used in the Verizon version could be swapped out for Sprint? It would be pretty interesting if a Verizon version of this phone just required a transplant of the LTE sim chip.

hitdog44 said:
I am not a fan of the Iphone, but my wife has the 4s and I was able to call sprint to have them unlock the phone so we can use it overseas with another sim card. With that being said is the Iphone the only phone that has the slot to easily take out the card and replace it with another card if traveling overseas?
Click to expand...
Click to collapse
Well, the GNII doesn't have that ability :/

The original Photon has a removable sim. Not sure about sprints unlocking policy on that device though.
Sent from my SPH-L900 using xda app-developers app

Darkendvoid88 said:
The original Photon has a removable sim. Not sure about sprints unlocking policy on that device though.
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
I own this Photon and it worked well since it's unlocked for foreign sims but it won't see an update beyond 2.3 since Motorola won't upgrade it. GN2 is the phone I want to upgrade to but this embedded sim is my biggest problem with it.

randy2 said:
No u are exactly correct that chip controls sprint lte access but the good news is a secondary sim slot can be placed directly over it without much case modification you just have to wire it up and remove the metal block from the pcb cover Case also wireless charging is definitely in play due to the pcb is wired for it a lot of hardware modification promise
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Randy, Are you saying saying there is no need to remove the chip just solder wires from it's legs to SIM slot and switch with software?

Exactly someone would have to unlock it software wise but a simple soder hack and some super glue will allow it to be used directly on top of chip with wires straight to the right connections.. The chip cannot I repeat cannot be removed it manages the sprint frequency of lte and International roaming to remove it would take away ur ability to have lte but the positive is its not that locked down from what I'm hearing its a simple mod hardware wise. also the wireless hack is super super easy I don't understand why sprint left the tech for wireless charging in and routed correctly but removed the access to them. Go figure as soon as I get a device ill do some tinkering
Sent from my SPH-L710 using xda app-developers app

I have to tear it down again tomorrow when I get to the store as I screwed up the rubber grommet that goes around the headphone jack (covering the hole atm). So if you guys need any more pictures of the chip / insides I'd be happy to oblige.

SIM card not detected - then detected again

My phone is constantly failing to detect the sim card, usually if I restart the phone or leave it for enough hours it will "find" it again.
Short of reflashing it I'm not sure if there's any way to determine if this is a software or hardware issue. The phone itself is a refurbished one (thanks to the phones insurance replacing it a few months ago), however it is now out of warranty. If it was a hardware fault, how much would it probably cost?
Thanks, Shaun.

The first thing I'd try is a different SIM card or a different SIM card insert (bit of plastic that the SIM sits in).
Has this always happened since you've had the phone?
or
Has it happened since you flashed the phone?
As for the price of repair I haven't a clue (i do all repairs myself), but my guess is in excess of £150
You may want to provide more information before other, more experienced people, come to your aid.

It's slowly gotten worse over the last few months (the first couple of times I just thought it was a once off bug or something, which is why it's very difficult for me to give you an exact when it happened).
The fact that its gotten worse in itself is leading me to guess its a hardware fault - I could have knocked or dropped it and not remember or something.
I don't have any other SIMs but I'll give flashing it to a different ROM or stock a shot first.

shauntp said:
It's slowly gotten worse over the last few months (the first couple of times I just thought it was a once off bug or something, which is why it's very difficult for me to give you an exact when it happened).
The fact that its gotten worse in itself is leading me to guess its a hardware fault - I could have knocked or dropped it and not remember or something.
I don't have any other SIMs but I'll give flashing it to a different ROM or stock a shot first.
Click to expand...
Click to collapse
I feel as if that is your best best before you go throwing money at it.
Good luck!

Does the phone say no sim card (with icon) or do you lose service?

nor1982 said:
Does the phone say no sim card (with icon) or do you lose service?
Click to expand...
Click to collapse
It has done both, the latter's slightly more common though. Probably more often than both it will momentarily drop out, then come up with a "Preparing SIM card..." message.
Still happening after flashing it with a different ROM. Looks like it's probably hardware :/

Might be coxicial cable that connects the pcb with antenea board they do come off from time to time
Sent from my HTC One X using xda app-developers app

Hi there,
i have a similar problem with my device:
network disconnects sometimes (for some reasons ok, as example when i sit in the underground or other places without gsm network) - but then the services doesnt comes back - i'm complete offline. next behavior: i'm just talking with full gsm bandwidth, and for really no reason i get disconnected -> no network anymore, no service anymore.
can it be a hardware fault or should i try to flash the modem (when possible) ? I'm on the latest HTC firmware, device isnt rooted or flashed... it is as i got it from the market.
thanks for a hint what i can try

See above could be that, what network you on?
Sent from my HTC One X using xda app-developers app

nor1982 said:
See above could be that, what network you on?
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I'm on GSM (in Germany the O2 network)

maybe the network fault can be solved:
just have read in the vodafone forum in uk and found a hint from a user, who was taping the back side of the SIM card with 2 stripes of plastic.
Have tried this and report tomorrow here if it solves the issue

Tested with taped SIM card and i can say: it works like a charme