Samsung SIM Card not working - General Questions and Answers

Hello!
A while back I dropped my Samsung A71 in water and when I started it after drying it everything appeared to be fine. But after 2 weeks or so a problem with the SIM card appeared. The card gets recognized, and I need to enter my PIN, however, I do not have any mobile data, which obviously is a pretty severe issue since I cannot make or receive calls and texts.
The odd thing is that after 20-50 restarts, it suddenly starts working normally again. This makes me wonder, is this a hardware or software related issue and would it help to install a custom ROM. My phone is rooted since before so maybe there are some mods that could be handy to search for a solution.
I'm very grateful for any help!

Few months ago, I dropped my Galaxy S7 in the water, too. It had some very weird restarts so I teared it down, cleaned it up, then tied it up.
There were two cables I did not tie, thought it wasn't necessary, so when the phone booted, it was just fine, except the network, it was showing "Emergency Calls Only", sometimes shows "No SIM Card".
At first, I thought it was EFS issue, so I tried a lot of recovery methods, none did work, however LTE only mode could receive signal sometimes.
It took me a month to figure out that it was the cables I did not implement.
It's definitely a hardware problem, and it seems like it's just water stuck somewhere between these cables, or near the SIM tray.

Mohamedkam000 said:
Few months ago, I dropped my Galaxy S7 in the water, too. It had some very weird restarts so I teared it down, cleaned it up, then tied it up.
There were two cables I did not tie, thought it wasn't necessary, so when the phone booted, it was just fine, except the network, it was showing "Emergency Calls Only", sometimes shows "No SIM Card".
At first, I thought it was EFS issue, so I tried a lot of recovery methods, none did work, however LTE only mode could receive signal sometimes.
It took me a month to figure out that it was the cables I did not implement.
It's definitely a hardware problem, and it seems like it's just water stuck somewhere between these cables, or near the SIM tray.
Click to expand...
Click to collapse
Thank you so much for the suggestion. I'll see what I can do and hope for the best!

Related

[Q] No Sim Card

I have a HTC Sensation XE on Orange UK which is not rooted.
Since I've upgraded the phone from Android 2 to 4.0.3, I've been having an intermittent problem with the signal. On a daily basis, I will lose phone signal completely and quite often, the only way to get the phone signal back is to either turn it on and off Airplane Mode or Restart the phone. Sometimes this will return the phone signal, but sometimes it will remain with no phone signal and sometimes, it comes up with an error saying that I don't have a Sim Card in the phone. Eventually, I do get back the phone signal back but I have to leave it alone for about 10-15 minutes if it gets into the "No Sim Card" loop, otherwise everytime I restart it or put it into Airplane Mode, it comes back with No Sim Card.
This normally happens when I'm using the phone, but has happened when I've had my phone in the pocket. It happens in weak and strong signal areas. It's very random. Factory Reset will often have no affect and it's happened when I've had lots of Apps installed, and when I've only had the Factory Apps installed.
I've sent it back to HTC 3 times. They've returned it with re-installing the software. It works again for about 3-5 days, then the problem starts again.
I keep thinking it's an issue with the Sim Card, but the Sim Card works fine in other phones with no issues of signal. I've tried other Orange Sim cards in the phone and they seem to work, but I've never left it long enough to see if the signal crashes. I've spoken to Orange but they say there's nothing wrong with the Sim Card as it works in other phones.
I've looked all over the internet for a resolution. Seen many people having the issue, but unable to come up with a resolution. I'm a little unsure what to do. Anyone having a similar problem, or any ideas what to do next?

No signal

Good day, today I dropped my phone don't know if it lost signal after this didn't notice until I tried to make a phone call but now there no signal, can't make or receive calls, I notice that at the bottom of the screen it shows my service provider name and next to it says no service so don't know it its hardware related or sim, do you think that if I reset the phone it might work again? Thanks. Right now can't test because I'm at work, but in general information on service it says disconnected
Sent from my Nexus 5 using xda premium
Flash stock with fastboot, if it's the same, it's hardware I'm afraid.
Thanks a lot did already, tried everything seems hardware related, noticed that it also lost nfc connection wondering rich part should I replace to fix it, if only has to do with antenna or the whole mainboard
The NFC radio and antenna are connected to the back cover. Try popping your back cover off and on again.
Dihantar dari Nexus 5 saya dengan XDA-Free mobile app
Thanks already did and nothing, could it be related to some other piece?
go to your dialer app and type in #*06*# and see if a number pops up (your imei number) (dont post the number here)
Did too, also the *#*#4636#*#* and checked if signal was turned on, tried sim in other phones works without problems, I noticed that nfc is not working too, guess it has to do with a piece of hardware as far as I know both antennas are in the back of the phone. Took it to service and they told me it has no problem physically, this is driving me crazy
Also checked that it has no reports of being stolen, imei seems correct and legit checked it also on a site to see if it's valid and its working, it starts with a 32.
My phone wouldn't connect to any network after being in airplane mode on vacation for a week, acted like no signal - empty triangle instead of bars. I called my cell provider (T-Mobile) and after a new SIM and a factory reset they did something on their end because my phone was trying to connect to a tower that didn't exist. I'm a little fuzzy on what they actually did, but it worked. I actually had to do it twice over a couple weeks before it stopped giving me trouble.
ShiroZ31 said:
My phone wouldn't connect to any network after being in airplane mode on vacation for a week, acted like no signal - empty triangle instead of bars. I called my cell provider (T-Mobile) and after a new SIM and a factory reset they did something on their end because my phone was trying to connect to a tower that didn't exist. I'm a little fuzzy on what they actually did, but it worked. I actually had to do it twice over a couple weeks before it stopped giving me trouble.
Click to expand...
Click to collapse
thanks friend will have to go and check with them , dont know if its the same because my phone has no cell provider it accepts any sim you insert to it
Hello
Hello guys, I am on the same boat as Valholy described.
My phone fell on the ground from my hands. When I took the phone from the ground... it was still working(it wasn't shutdown nor restart), I only noticed that there was no more signal. Tried to restart/shutdown, factory reset, different sim card but no luck at all... As Valholy described it shows provider's name on the bottom of the screen, but there is no signal yet.. It seems like hardware issue. Any recommendation to fix this issue?
Did you fix your phone yet, Valholy?
Thank you
bump...
any help please.
thank you

A confusing problem with my phone's cellular network service.

Hey guys. I have an unusual problem with my phone.
I was using my phone one night while in bed, playing a game that requires online connection when suddenly, my phone slipped from my hands. I managed to save it from falling to the floor, but it hit the wooden frame of the bed in the process. I checked the phone out and noticed no problem with it. The screen was fine, nothing broken on the exterior. So I tried to go back to my game, but it complained that there was no internet connection. That was when I noticed the signal had disappeared and the phone displayed "No service". I tried turning airplane mode on and off........nothing, restarted the phone.........no change. I turned off the phone and went to sleep.
In the late hours of the morning, I switched it on, and was greeted with the "emergency calls only" warning. I tried removing and re-inserting the sim card, restarting the phone and when I tried everything I could think of, I did a factory reset on the phone. Still, nothing changed. So, to rule out the possibility that the service was at fault, I removed the sim and inserted it into my brother's phone. It worked as it should! I inserted my brother's sim into my phone, same thing. At times, I get "No service", at times, "Emergency calls only", even some times, I get "No sim card", when there's actually a working sim card in the phone. These led me to believe the phone isn't detecting sim cards, but sometimes, the phone recognizes my sim card and the signal shows up, but I'm unable to use mobile data connection, make or receive calls or texts, or even dial a code to check my airtime balance.
So I decided it was definitely the hardware that had developed a fault. But then, one day, I went to visit a friend quite far away from where I lived, and I took my phone with me. To my surprise, my phone worked flawlessly there. I was able to use data connection and was getting good speeds. I was able to call and text. I removed the sim and put in another sim and it was the same.........worked flawlessly. Now, I don't know what to think anymore because as soon as I got back home, I was again getting the No service/Emergency calls only warnings, and the same sims work in my brother's phone - my brother lives with me.
** I know (or think) it's not a software problem because it would have been resolved after I hard reset it. Plus, it all started when it hit the bed.
** I know it's not the service in my area because the sim works in my brother's phone and my brother stays with me.
** I can't decide if it's an hardware problem because sometimes it works, sometimes it doesn't.
Some facts about the phone (if it helps)
** The phone is rooted
** It uses a sim tray. The type that allows two micro-sims or one micro-sim and one sd-card.
** The phone gets hot when I use it extensively.
I'd appreciate any help. Thanks guys.
Same thing happend to my phone it would have a mind of its own but it turned out that out in an open field the phone works but if you get any kind of walls around your phone the network wod not work. This is caused by a hardwsre problem took it to the shop and git it fixed.
khalid2882 said:
Same thing happend to my phone it would have a mind of its own but it turned out that out in an open field the phone works but if you get any kind of walls around your phone the network wod not work. This is caused by a hardwsre problem took it to the shop and git it fixed.
Click to expand...
Click to collapse
Thanks for replying bro. I plan to take it out for repairs soon.

SIM not detected after dropping phone

Hello! I've had the ONO (A0001) for about 3 years and it has been more than adequate for my needs. It has had a few drops along the way, but nothing terrible. Was always kept in a Diztronic case with screen protector. Been running the Resurrection
Remix ROM (Android 7.1.1) very stable since the start of the year.
However, after its latest fall (it actually landed screen first!), I've noticed that my ONO has stopped recognizing the SIM altogether. I've tried reinserting the SIM card, network reset, rebooting, cleared the 'Phone' and 'SIM Toolkit' app caches, wiped cache in TWRP, but to no success. Interestingly, WiFi still works. Attempting to access 'Cellular Networks' from 'Wireless & Networks' to change 2G-3G-LTE returns "com.android.phone has stopped" at every attempt.
Has anyone every experienced this before and knows how to fix it? I have a sick feeling that this may be a hardware problem.
xFalcon1986 said:
Hello! I've had the ONO (A0001) for about 3 years and it has been more than adequate for my needs. It has had a few drops along the way, but nothing terrible. Was always kept in a Diztronic case with screen protector. Been running the Resurrection
Remix ROM (Android 7.1.1) very stable since the start of the year.
However, after its latest fall (it actually landed screen first!), I've noticed that my ONO has stopped recognizing the SIM altogether. I've tried reinserting the SIM card, network reset, rebooting, cleared the 'Phone' and 'SIM Toolkit' app caches, wiped cache in TWRP, but to no success. Interestingly, WiFi still works. Attempting to access 'Cellular Networks' from 'Wireless & Networks' to change 2G-3G-LTE returns "com.android.phone has stopped" at every attempt.
Has anyone every experienced this before and knows how to fix it? I have a sick feeling that this may be a hardware problem.
Click to expand...
Click to collapse
Disassemble the device and reattach network antenna.Follow tutorials on Youtube for DIYs'.
Mr.Ak said:
Disassemble the device and reattach network antenna.Follow tutorials on Youtube for DIYs'.
Click to expand...
Click to collapse
Thanks. Will try that.
check ur network antenna
Hi @xFalcon1986 I had a similar issue for about one year. This may or may not help but for what it's worth, here is my experience:
Only my home network sim card would reliably work. Recently, I was traveling and once again my roaming worked for a few minutes before the phone gave me the notification: sim not found. I decided that enough was enough - I needed to figure this out or get a new phone. When I removed the problematic sim and compared i to my old home network sim, I noticed that there was tiny bit of curvature on the card. Excited about the potential, I bent the sim that would go unrecognized within a few minutes. Turns out, the first time I bent it, the side I made concave was the wrong one. After the first failed attempt, I pulled the card out again and then bent it the other way. It didn't work either and hope was fading. Just to be sure, I bent the sim one more time - this time further than I thought healthy for the sim. Turns out those cards are quite flexible! Once I inserted the sim, the network connection returned and remained for at least 20 minutes. It then went unrecognized and so I bent it once again and everything continued working.
It turns out that I need to bend the sim card once per week but besides that, my phone once again recognizes the sim.
I have no idea if you went to another phone by now but give this bendy trick a shot. The metal contacts might just have been bent a bit too much one way or the other while the phone impacted the ground. Give it a try and let us know how it worked for you. Cheers!
Nitramwin said:
Hi @xFalcon1986 I had a similar issue for about one year. This may or may not help but for what it's worth, here is my experience:
Only my home network sim card would reliably work. Recently, I was traveling and once again my roaming worked for a few minutes before the phone gave me the notification: sim not found. I decided that enough was enough - I needed to figure this out or get a new phone. When I removed the problematic sim and compared i to my old home network sim, I noticed that there was tiny bit of curvature on the card. Excited about the potential, I bent the sim that would go unrecognized within a few minutes. Turns out, the first time I bent it, the side I made concave was the wrong one. After the first failed attempt, I pulled the card out again and then bent it the other way. It didn't work either and hope was fading. Just to be sure, I bent the sim one more time - this time further than I thought healthy for the sim. Turns out those cards are quite flexible! Once I inserted the sim, the network connection returned and remained for at least 20 minutes. It then went unrecognized and so I bent it once again and everything continued working.
It turns out that I need to bend the sim card once per week but besides that, my phone once again recognizes the sim.
I have no idea if you went to another phone by now but give this bendy trick a shot. The metal contacts might just have been bent a bit too much one way or the other while the phone impacted the ground. Give it a try and let us know how it worked for you. Cheers!
Click to expand...
Click to collapse
I have a similar problem. I wanted to activate the SIM. I didn't have access to the SIM card number for activation. So I removed it to read the number. When I put it back in I started getting "not found messages". Turns out something happened to the SIM card tray, and the card slid off the tray and was stuck inside the phone! I finally got it out by bumping the phone against my hand.
I went through e-Bay and located a replacement as the original appears damaged.
Is your Macgivered solution still working? Have you gone to another phone?
Sent from my OnePlus 5 using XDA Labs
I just tried it & surprisingly it worked for me. Thanx
It worked for me
Nitramwin said:
Hi @xFalcon1986 I had a similar issue for about one year. This may or may not help but for what it's worth, here is my experience:
Only my home network sim card would reliably work. Recently, I was traveling and once again my roaming worked for a few minutes before the phone gave me the notification: sim not found. I decided that enough was enough - I needed to figure this out or get a new phone. When I removed the problematic sim and compared i to my old home network sim, I noticed that there was tiny bit of curvature on the card. Excited about the potential, I bent the sim that would go unrecognized within a few minutes. Turns out, the first time I bent it, the side I made concave was the wrong one. After the first failed attempt, I pulled the card out again and then bent it the other way. It didn't work either and hope was fading. Just to be sure, I bent the sim one more time - this time further than I thought healthy for the sim. Turns out those cards are quite flexible! Once I inserted the sim, the network connection returned and remained for at least 20 minutes. It then went unrecognized and so I bent it once again and everything continued working.
It turns out that I need to bend the sim card once per week but besides that, my phone once again recognizes the sim.
I have no idea if you went to another phone by now but give this bendy trick a shot. The metal contacts might just have been bent a bit too much one way or the other while the phone impacted the ground. Give it a try and let us know how it worked for you. Cheers!
Click to expand...
Click to collapse
Pack Leader said:
I have a similar problem. I wanted to activate the SIM. I didn't have access to the SIM card number for activation. So I removed it to read the number. When I put it back in I started getting "not found messages". Turns out something happened to the SIM card tray, and the card slid off the tray and was stuck inside the phone! I finally got it out by bumping the phone against my hand.
I went through e-Bay and located a replacement as the original appears damaged.
Is your Macgivered solution still working? Have you gone to another phone?
Click to expand...
Click to collapse
Hi! Sorry for the late reply but yes the solution is working great. Because of it, I'm still making use of my OnePlus One! I found that after the second week of bending, the sim card held the shape for about three months before I needed to bend it again.
Funny thing is that I initially also had my sim stuck inside the phone for some reason and getting it out was a real pain. However, with the bendy trick the sim had been working and I've had no trouble removing it when necessary. Hope you were able to figure something out. ?

Question Root related cell reception issues?

I purchased a used US version Rog Phone 5 recently through an online seller. When receiving the phone, I gave it a good once over and powered it on and tested wifi and such and everything seemed to be in good working order. I then rooted the phone and set most of stuff up. After inserting my sim card, I noticed the cell reception was not that great. I suffered through for a couple of days but was missing calls and texts like crazy. I was constantly dropping reception entirely in areas where I have very good signal with other phones. The phone is essentially useless now. I tried several factory resets, flashed back to the non-rooted boot image, and then flashed to an older firmware with no improvements to signal. I can't imagine the reception issue is in any way related to the rooting process, but I'm throwing this out there just in case anyone has seen anything similar in the past.
A few things to note:
I am on AT&T
The APN is definitively configured correctly
I could have returned the phone to the online seller for a refund prior to unlocking the bootloader, but did not insert a sim before rooting, so I have no idea whether the issue was present from purchase or not. Lesson learned, I suppose... do a more thoroughly inspection before doing anything that will void a warranty or refund agreement.
I have tried the same sim in two other phones with no issues.
Everything else about the phone seems to work perfectly, only poor reception.
I had the phone up to approximately 30 miles from my house with no change, so it isn't limited to a specific tower.
Does anyone have any ideas? If I don't come up with anything I will be posting it on ebay as "not working - for parts only" so I will try about anything at this point.
Sim recognition issue
Owned the phone for about a month now. Phone was working perfectly fine for the majority of this time. I use 2 different sims and they were both working smoothly until recently. A few days ago, I woke up and the phone wouldn't recognize the Sim...
forum.xda-developers.com
sim card problem
just all of sudden it became invalid sim try multiple time reset or clear data cache sim toolkit original sim to other phone is working other sim to original phone is working other sim to other phone is working anyone face the same problem...
forum.xda-developers.com
Sounds like they pawned the issue off on you, but it should still be under warranty to have it repaired. When you contact Asus, don't mention unlocking the bootloader. Stick to the hardware concerns.
I have looked over both of those threads, but it seems to be a different issue. My sim is recognized fine, its just the signal strength that appears to be extremely low. Even when the phone has no service at all, it still recognizes the AT&T sim is present.
cpenticuff said:
I have looked over both of those threads, but it seems to be a different issue. My sim is recognized fine, its just the signal strength that appears to be extremely low. Even when the phone has no service at all, it still recognizes the AT&T sim is present.
Click to expand...
Click to collapse
Yes, it is not the same issue, but it appears to be a similar issue. The important detail being that both required a motherboard replacement.

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