The SIM on my phone is not being detected. It started happening from 3 days now. Some cases, it shows range for 1 min then shuts off again. I tried restarting and reinserting the SIM. My phone isn't rooted nor it's bootloader unlocked. Is anyone else facing this? Please help me as my phone now doesn't serve a purpose.
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I have an HTC HD7 with the second Mango beta on it, using T-Mobile in USA. It has been working normally for a long time. Today I received a carrier/GSM unlock code from T-Mobile, I put that code in, phone said it was good, put my T-Mobile sim back in the phone.
Now my phone reboots every 20 seconds. It will completely boot up, I will be able to load apps or use it as normal, then it will just turn off and start to boot up again. Same thing happens whether I try playing with it or just let it sit there for 20 seconds. Same thing happens if it is plugged in to the wall or my computer or is unplugged. Same thing happens with or without the sim card in it. The only way to get it to stop rebooting every 20 seconds is to pull the battery.
I have searched the forum and google and haven't found any solutions. Can anyone help?
EDIT: I have just noticed that the phone does this with the T-Mobile sim card or no sim card installed. With an At&t sim card the phone works fine.
Have you changed the SD card? this happened to me with the non oem 8GB SD card on Mango
I been having my Moto X for about 4 days now and recently it will stop reading the sim card and I have to take it off turn phone off put it back on and turn it back on and sometimes it will start working other times I have to keep trying. I have done 2 restores to the phone but it still doing it. Anyone have the sim issue? or have a solution.
LordDemon1 said:
I been having my Moto X for about 4 days now and recently it will stop reading the sim card and I have to take it off turn phone off put it back on and turn it back on and sometimes it will start working other times I have to keep trying. I have done 2 restores to the phone but it still doing it. Anyone have the sim issue? or have a solution.
Click to expand...
Click to collapse
two options
1. sim card is bad and it needs replaced
if not
2. sim card slot is bad and the phone needs replaced(should be under warranty)
take it back and get a new one asap.
I get random No SIM card detected on my phone. The problem is temporarily fixed when I turn off the phone, take the SIM out, put it back in, then turn the phone back on. Until it happens again. I'm on stock rom, phone is around 3 and a half years old. I don't have a different SIM card right now to try out. I did notice that it's more common when the phone is overheating, like when watching a video or sometimes while charging it gets kinda hot and no sim card pops up.
What do you guys think is the problem? SIM card or phone? And is there any way to fix it?
Thanks.
Hello all,
I have had my unlocked H9493 Bordeaux Red XZ3 for about 6 months and it has worked fine on T-Mobile (Android 9, 52.0.A.3.202). Unfortunately, yesterday it randomly rebooted and after that it would no longer detect the SIM card and there is no wifi signal either; everything else on the phone works just fine. I keep getting the message "No SIM Card - No Service". I have rebooted several times with no luck. If I do leave it off for a while and turn it back on, sometimes I will get service & wifi for a little bit before the error starts all over again. If I leave the phone on with the error, it will reboot itself every few minutes.
I tried a different SIM card in the phone but still got the same issue. I put the original SIM card in another phone & it worked.
I scoured the web & found others having similar issues but none of their fixes worked (like using the *#*#... code and playing with the settings). I should mention that I did drop the phone a few hours before this started to happen but it was not that big a drop and I have a Ringke Fuxion-X case on it. There is no visual damage to the phone but perhaps I knocked the antennas loose ... ?
Before I do a factory reset, does anyone have any suggestions?
Thank you!
LePro69 said:
Hello all,
I have had my unlocked H9493 Bordeaux Red XZ3 for about 6 months and it has worked fine on T-Mobile (Android 9, 52.0.A.3.202). Unfortunately, yesterday it randomly rebooted and after that it would no longer detect the SIM card and there is no wifi signal either; everything else on the phone works just fine. I keep getting the message "No SIM Card - No Service". I have rebooted several times with no luck. If I do leave it off for a while and turn it back on, sometimes I will get service & wifi for a little bit before the error starts all over again. If I leave the phone on with the error, it will reboot itself every few minutes.
I tried a different SIM card in the phone but still got the same issue. I put the original SIM card in another phone & it worked.
I scoured the web & found others having similar issues but none of their fixes worked (like using the *#*#... code and playing with the settings). I should mention that I did drop the phone a few hours before this started to happen but it was not that big a drop and I have a Ringke Fuxion-X case on it. There is no visual damage to the phone but perhaps I knocked the antennas loose ... ?
Before I do a factory reset, does anyone have any suggestions?
Thank you!
Click to expand...
Click to collapse
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Nope
SonicKiller said:
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Click to expand...
Click to collapse
No, I gave up & switched to a Pixel 3 XL. Every now & then I turn on the XZ3 to see if it fixed itself & no luck so far.
Hope yours works.
Update
SonicKiller said:
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Click to expand...
Click to collapse
OK for funsies I turned on the XZ3 again after all this time & it is working. Going thru the setup process & so far the SIM or wifi has not disconnected so maybe it fixed itself after all these months?
LePro69 said:
OK for funsies I turned on the XZ3 again after all this time & it is working. Going thru the setup process & so far the SIM or wifi has not disconnected so maybe it fixed itself after all these months?
Click to expand...
Click to collapse
Maybe dirt in the sim slot?
I have the same issue. Took the phone to repairs and it got better for like 2 weeks and then again the signal began to drop randomly to the point where "sim card is not detected" is written on the screen. When I press on the backplate of the case near the camera (where coax antennae cable is supposed to be) the issue resolves itself for like half an hour and then repeats. The issue is 100% hardware because no firmware (stock, GSI, AOSP, even Sailfish) would affect how SIMs are becoming not detected.
ozamyatin said:
I have the same issue. Took the phone to repairs and it got better for like 2 weeks and then again the signal began to drop randomly to the point where "sim card is not detected" is written on the screen. When I press on the backplate of the case near the camera (where coax antennae cable is supposed to be) the issue resolves itself for like half an hour and then repeats. The issue is 100% hardware because no firmware (stock, GSI, AOSP, even Sailfish) would affect how SIMs are becoming not detected.
Click to expand...
Click to collapse
I would let it repair again.
In the SODP team I never heard about the problem, so I assume it must be a rare one.
Getting the phone fixed in service center is not the russian way of nailing it I just sticked a slim piece of plactic onto the back of sim and sd card holder in the sim slot bay to apply pressure on the back of sim card. No issues for a week so far, great and stable signal quality.
Hi guys since yesterday I have problems with my phone
the phone suddenly freezes over without being able to interact.
it restarts on its own but without ever starting the operating system in fact it shuts down and does not turn on again as if the phone had died.
the really strange thing is that the phone was fine Then suddenly he started making this mess.
Yesterday after so many hours of problems I managed to start the phone and now it works well but I am afraid that the situation will repeat itself.
the phone has the bootloader unlocked has root permissions, I followed the guides on this site.
But I have had this phone for two months now and these problems never occurred.
where can i start to understand what the problem is?
Mine suddently become all white, with the interface cut in half and moved up. i could do nothing. nor reboot nor shutdown.
after some minutes it turned back normal. i hope its color os bug and realme will fix it
It appears to be a firmware problem. We hope well.
Today did not give problems. This behavior is really strange, what can I install to understand the root of the problem?
I noticed that if the phone never goes into deep sleep mode the problem does not occur.
Now I am registering the log and as soon as the problem occurs again I go into detail to find out the real reason.
I'm trying to create an automatic script that is launched on the boot that practically never makes the phone sleep.
i'm really desperate the phone started to reboot itself.
I would like to try using a system log recorder but I realized that when I restart the phone these logs are not saved so it is impossible for me to verify the reason.
Can any of you help me out?
the phone freezes and then restarts.
Did you achieve any solution ?
No. I'm disperate.
Why don't you flash stock fw /recovery? Just to make sure it isn't an Hardware problem ?
I try but have this problem
https://forum.xda-developers.com/realme-x2-pro/help/bootloop-realme-x2-pro-rmx1931ex-t4089177
@westenlive
The problem appears only when you use data connection right?
If you try to switch off data and use wifi , you will not notice
The problem is because of the the operator, try another sim provider
Yes, in fact, that could be the problem because a few months ago removing the SIM card the phone did not give more problems
maybe you gave me the solution. I'll try
Ahmed Momtaz said:
@westenlive
The problem appears only when you use data connection right?
If you try to switch off data and use wifi , you will not notice
The problem is because of the the operator, try another sim provider
Click to expand...
Click to collapse
I am now testing the LINEAGE it happened to me this I removed the SIM card and I installed the costum Rom, I made the various customizations and the phone never locked OR restarted.
I inserted the SIM card in the phone worked perfectly, then having messed up with luckypatcher I had to reinstall the Rom.
So I performed the same procedure with the SIM card inserted in the phone and already at the first start it was unstable with reboots.
Currently I have applied for a change of sim card.
As soon as it arrives I will try to remove the sim card Install from scratch The system is to insert the new SIM card only so I can have the mathematical certainty that it is the SIM card
I hope my experience can help someone
This problem seems true, my X2 Pro also faced same issue when enabling cellular data. The phone sometimes loses the signal or the app freezes and perform a phone reboot. X2 Pro is a mid-range flagship phone, and yet this problem should be solved before they start to sell the phone.
Yes this device has many software problems but hardware problems of this kind are not acceptable.
Practically mine has become unusable, as soon as I turn it on after a few minutes of use it start closing the apps by itself.
Then after AN intende use of 30 minutes it start to restart.
This phone is truly incredible
Next time buy ONE PLUS