Develop Bugs

[Q] SIM failure

Hello i've started to have problems with SIM card, sometimes randomly it just pops up window that SIM card is not inserted and all i can do is restart phone and even when i restart it it cannot find the SIM card, i have to pull out the battery and reinsert the SIM to make it work, it might be because of the guy at t mobile who cut the SIM card wrong and it gets dislocated in the solo and also it might be system failure so im asking is anybody else experiencing this?

Yes I experienced this. It was really annoying. I managed to fix it by removing the sim card and wiping it gently using cloth. If that didn't fix it, then ask your carrier for a new sim card, because yours might have become defective.

SIM not detected
Hello, i have the same issue.
Nothing helps. Put in and out different SIM Card's. No one of all SIM are detected.
Could it be, that a self cuted SIM, to Microsim Formfaktor, damaged the SIM Reader of my new Note?
But yesterday it works really fine with the self cuted SIM. In the Evening i put out the cuted SIM und put in a other (Origin) Microsim from an other Carrier, that works fine too.
After that, i put the cuted SIM with an Adapter into my old Desire. Then i have issues with 3G Networks. The Desire find 3G Network, connect to the Network and lost the connection immediately. When i choose only 2G Networks it would connected.
Today at the morning, i want to know what's wrong. Desire or cuted SIM. I put the cuted SIM back into my Note. Boot the Note. If it booting up, it poped up a message, that the Phone must be restart because the SIM has been changed. When the Note reboot again it, it shows a SIM Icon in the Notification Bar and tells it's no SIM Card inside. I tried the other Microsim (OEM cuted) it won't be detected too.:crying:
Does anybody have a solution for me?

Thank you i tried to clean the SIM card a little bith with cloth and spits and grits, did not happen since then, i hope it will be solved, if not i will try to get a new sim card from carrier, after all the SIM card is like +11 years old

[Q] No SIM card problem..PLEASE help!!!

OK, so I've searched these forums, and various other forums, quite extensively to solve my problem here. My buddy purchased an ATT Samsung Galaxy S3 off of a friend. He unlocked the phone, using the free method mentioned within these forums multiple times (entering digits in to the dialpad, going through menus, etc..). With that, he was able to use his T Mobile Straight Talk SIM card to use Straight Talk's services. On a suggestion from me, I told him to save some money, and switch over to T-mobile directly.. get the $30 a month plan. He did.
When he set up his sim card from straight talk, he had to cut it to fix the S3. It worked fine, but when he removed the sim card, he thought he could have damaged the sim card holder. Lo and behold, inserting the T-mobile sim card is netting a "No Sim Card.. Emergency Calls Only" message. I believed possibly he unlocked his phone improperly, based upon the fact that, apparently, per these forums, Straight Talk doesn't require your phone to be unlocked? Regardless, we re-unlocked the phone, using the free method mentioned within these forums, but still the sim card doesn't recognize. We tried my t-mobile sim card, which works fine in my nexus 4, and that didn't recognize.. but his sim card DOES recognize in my phone. We tried a verizon sim card, and that doesn't recognize. We have NOT tried an ATT sim card, but he's going to do so shortly, to see if that recognizes.
Thinking this could be a software issue, I wiped his phone's cache, data, etc.. and reset the phone to factory defaults. Still the no sim card error. So he bought a new sim card holder off e-bay, removed the back, removed the old sim card holder, put the new sim card holder in.. still no sim card error. Still doesn't work with any of the sim cards we've tried.
I then wiped the phone yet again, rooted it, and installed cyanogenmod, thinking possibly that it was software related still. Still, no sim card error. I took the phone apart, cleaned the contacts with a q-tip and denatured alcohol, cleaned the motherboard, cleaned the plugs for the sim card holder... still no sim card error.
So as far as we can tell, the phone is unlocked, rooted, has been tried with a custom rom, stock rom, and the stock rom that worked perfectly fine one week ago. We have replaced any potentially bad hardware (although, potentially, the new hardware could ALSO be bad I suppose). As far as I can see, this is not a software issue, nor is this a hardware issue.. yet, it still doesn't work. I'm really out of possible solutions at this point, and I implore the help of these forums to give me a lead or something for what can be done. This is a nice phone, and my buddy's not that well off; he can't really afford anything other than a flip phone, and he spent a good chunk of cash on a glorified tablet at this point. Please help! Thank you!!!
EDIT: I also tried cramming a piece of paper in to both the old sim card older, and this sim card holder, to ensure the contacts are touching properly

SIM not installed issue

Hi all,
Writing this down to help. I was using ZF2 with no issues, working perfectly fine. Then I have to travel and bought second sim to save on roaming. Now when i used this sim , I started facing issues of sim not installed in the same slot1 where my original sim worked fine. My other sim was now in slot2 and working fine. So i got both sims out to check. Ok the issue was the difference in width of sim card. My original sim card is slightly more big then the new one. So the sim slot1 hangs to bulkier sim perfectly fine but my new sim card would not get hold in slot1. It would look like as sim is locked in slot but if you drag it back it will come out. Therfore with some bumps in your pocket phone will show no sim card installed. How i handled, i put a small piece of plastic between both sim slots which keep sims tight and working always.
Nutshell if you see sim not installed issue check that sim is perfectly fitted in slot.

Yep, had the same issue several times. Opened up the back cover, refitted sim and it worked again. happens on irregular Intervals..

Use a piece of paper to ensure that the sim remains fixed.. Used to be a bother but now it's just fine..

I have not faced this issue yet, But my Back cover has two small Rubber bars which seem to take care of the SIMs (I guess)

NO SIM Card Error Replaced Sim Card Tray and Daughter Board

I have a problem. I started getting a no sim card error awhile back and if I played around with my sim card for a little while and put tape on the back it worked. Eventually though it just quit. So I ordered a new sim card tray and put it in but in the process I broke the clip on the daughterboard that holds it down... So i ordered the daughterboard as well and have installed it and EVERYTHING works on the phone except the stupid Sim Card work. I have actually tried two different new sim card trays because I thought maybe I had a dud. I have also gotten a new sim card and tried it out in other phones.
I have the latest Skydragon gpe rom installed on a stock At&t phone any help or suggestions would be greatly appreciated.

I have the same problem, try the original flex cable between the main and daughter board.

Dual sim tray in single sim model?

I'm going to be traveling internationally in a few months, and more than likely going to end up on a local SIM where I'm going for while I'm there.
On the single SIM tray there appears to just be a spacer molded into the tray where a second sim would go in the dual sim version. I'm thinking about ordering a dual SIM tray from China on eBay (10 bucks) so I can use the second sim slot in the tray as storage for my not in use sim.
Anyone know of any reason this shouldn't work? I can't think of any reason it shouldn't...

dandrumheller said:
I'm going to be traveling internationally in a few months, and more than likely going to end up on a local SIM where I'm going for while I'm there.
On the single SIM tray there appears to just be a spacer molded into the tray where a second sim would go in the dual sim version. I'm thinking about ordering a dual SIM tray from China on eBay (10 bucks) so I can use the second sim slot in the tray as storage for my not in use sim.
Anyone know of any reason this shouldn't work? I can't think of any reason it shouldn't...
Click to expand...
Click to collapse
You'll have to flash a dual sim firmware package but there's issues with flashing firmware that's not what originally was installed on your moto z play.
You could ultimately loose your IMEI , Which would render your phone useless.
It's just easier to sim unlock and insert a single sim.
Sent from my XT1635-02 using XDA-Developers Legacy app

flashallthetime said:
You'll have to flash a dual sim firmware package but there's issues with flashing firmware that's not what originally was installed on your moto z play.
You could ultimately loose your IMEI , Which would render your phone useless.
It's just easier to sim unlock and insert a single sim.
Click to expand...
Click to collapse
I'm already sim unlocked (have the US unlocked version courtesy of republic). My intention is to only use whichever sim is in slot 1. I'll manually pull the tray and switch sim positions when I need to switch. I just want the second slot as dead storage space for the unused sim card. Just wondering if there's something physical in the guts of the single SIM version that could be damaged by or cause damage to the unused sim in slot 2 of the tray. Or if there's something physically different about the dual SIM tray that will not allow it to fit in the single SIM version of the device.
Definitely no flashing of dual SIM firmware happening on this device.

You should be fine. Just make sure that the active sim goes in the same slot as where it would go in the single-sim tray and the inactive sim go in the spare slot. It's a good way to not lose a sim card. I was thinking of doing this for my single-sim, carrier variant Moto x play, but never bothererd.

titaniumtux said:
You should be fine. Just make sure that the active sim goes in the same slot as where it would go in the single-sim tray and the inactive sim go in the spare slot. It's a good way to not lose a sim card. I was thinking of doing this for my single-sim, carrier variant Moto x play, but never bothererd.
Click to expand...
Click to collapse
Thanks. Avoiding losing a sim while on my trip is my primary reason for doing this. Guess I'll give it a shot!

Update:
Received dual Sim tray from China today (13 days order to door, $10 shipped on eBay)
Visually compared both, they seem basically identical, with the exception of some type of serial number sticker on the original single Sim tray.
Fit isn't quite perfect - the angle of the outer piece of the tray isn't quite right, so it's a tiny bit recessed into the edge of the phone on one end, and slightly raised on the other end. Enough to be visually noticed if you're looking for it, and can be felt running a finger nail over the seam between the edge of the phone and the Sim tray. Don't believe it's enough to present any "catch" issues if running naked, and a total non issue if using a case or bumper.
No apparent functional issues - device connects fine using Sim 1 slot in tray. Did not feel any unusual resistance when inserting tray with both Sims aboard. Obviously doesn't see the Sim in slot 2.
Nice to be able to carry both my Sims with me, worry free. Worth the money for my use case.