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Sim card desconnecting on it's own

I'm experiencing random disconnections with my sim card. At first I thought it was bad contact so I put a little piece of folded paper and it helped, but I'm still having the problem...it mostly happens when I'm playing Lineage 2 Rev.
Anyone having the same issue? I'm currently with the lastest MIUI update.

I'm going through the same problem, but a little worse.
In addition to having several consecutive drops of signal, in places that had signal (even if a little weak) with Mi note 3 is absolutely no signal at all.
I have a redmi note 3 and with it works perfectly.
It's very sad that.

linqii said:
I'm going through the same problem, but a little worse.
In addition to having several consecutive drops of signal, in places that had signal (even if a little weak) with Mi note 3 is absolutely no signal at all.
I have a redmi note 3 and with it works perfectly.
It's very sad that.
Click to expand...
Click to collapse
I'm still trying to pinpoint the issue. Another lead I have is that it maybe has something to do with the heat? Were you charging or performing any intensive task during your disconnections?

real_mister said:
I'm still trying to pinpoint the issue. Another lead I have is that it maybe has something to do with the heat? Were you charging or performing any intensive task during your disconnections?
Click to expand...
Click to collapse
So .. I researched and I think in fact for being a matter of not having all the bands available for Brazil.
Come on..
At home it works the 3g of the live normally of VIVO in my redmi note 3, of the Mi note 3 blue, not only works when I leave, as if it only managed to catch signal of some specific antennas I do not know until where this is certain because I do not know.
Another thing I noticed is that it takes the 4g, OK, but in some places like in my office if it enters 4G the interent does not work anymore, the 4g is there but not connected, if I put 3g as a preference the internet works normal, and in other places like in the restaurant that lunch, it takes 4g signal and the internet works perfect, a lot of crazy ....

linqii said:
So .. I researched and I think in fact for being a matter of not having all the bands available for Brazil.
Come on..
At home it works the 3g of the live normally of VIVO in my redmi note 3, of the Mi note 3 blue, not only works when I leave, as if it only managed to catch signal of some specific antennas I do not know until where this is certain because I do not know.
Another thing I noticed is that it takes the 4g, OK, but in some places like in my office if it enters 4G the interent does not work anymore, the 4g is there but not connected, if I put 3g as a preference the internet works normal, and in other places like in the restaurant that lunch, it takes 4g signal and the internet works perfect, a lot of crazy ....
Click to expand...
Click to collapse
That's an interesting theory, but I guess it's not related. According to the gsmarena catalog, if anything the MN3 supports all bands the RN3 implents, plus one more. Can you share where you found this info?

real_mister said:
I'm experiencing random disconnections with my sim card. At first I thought it was bad contact so I put a little piece of folded paper and it helped, but I'm still having the problem...it mostly happens when I'm playing Lineage 2 Rev.
Anyone having the same issue? I'm currently with the lastest MIUI update.
Click to expand...
Click to collapse
Try cleaning the contacts on the sim card with acetone, or similar cleaning liquid with no oils in it.

Weak phone signal strength

As per title, i'm only getting 2 out of 5 bars for carrier signal. I live in an urban area so cell reception is not an issue. Previous phone had no issues whatsoever.
Note is using an esim, would this affect anything?
Info: Carrier is Optus (Aus)

It shouldn't but perhaps also try a physical sim as a process of elimination.
What's your signal like away from home as it could be a mast issue.
Also try resetting your network connection in settings.
A Samsung Experience Store or Samsung Service Centre can take a look.

BandOfBrothers1 said:
It shouldn't but perhaps also try a physical sim as a process of elimination.
What's your signal like away from home as it could be a mast issue.
Also try resetting your network connection in settings.
A Samsung Experience Store or Samsung Service Centre can take a look.
Click to expand...
Click to collapse
Haven't tried your first 2 suggestions but will do it soon.
Have reset network connection, no change.
No Samsung centre/store where I live unfortunately.

Are you measuring the bars on the status bar as your guide , if so then it's flawed method. Signal strength is measured in -dbm . Use an app like Network signal info lite to compare the actual figures with the past devices.

I had to go to Verizon and get a new sim card after the 5G update no more issues with my signal.

Its a normal thing for Samsung's. They've had weaker signals compared to other phones since the note 9. I have all the note variants and I have 4 lines I use with one plus, sony and note 10+ and n20u, samsung easily has the worst signal.

I've upgraded from note 9 to the note 20 ultra 5g
Noticed the 2 signal bars myself on the note 20
Were as my note 9 was always full bars everywhere I went i would get a good reception esp for the net it never let me down
im on three uk
Over the past few days on my note 20.. Internet has been ****e and slow.
I've tried changing from 5g to 4g still same
Been on phone to three had a replacement sim activated.. still same ...maybe give it a day to settle down..
My dbm are - 112 I'm a rural area near Manchester...
Reading around about these readings that's pretty naff.. have I got this wrong the lower dbm supposed be better than a higher reading?
For those wondering.. settings> about phone>status> sim card status.....
I've 2 more days before I have the 14 days cancel return..
I'm just wondering if the signal bars a myth only being 2
Am I over looking things ?
Other than the signal I have no issues love this phone ..
Any input will be taken on board and appreciated
Thanks for looking and helping

Braggster said:
I've upgraded from note 9 to the note 20 ultra 5g
Noticed the 2 signal bars myself on the note 20
Were as my note 9 was always full bars everywhere I went i would get a good reception esp for the net it never let me down
im on three uk
Over the past few days on my note 20.. Internet has been ****e and slow.
I've tried changing from 5g to 4g still same
Been on phone to three had a replacement sim activated.. still same ...maybe give it a day to settle down..
My dbm are - 112 I'm a rural area near Manchester...
Reading around about these readings that's pretty naff.. have I got this wrong the lower dbm supposed be better than a higher reading?
For those wondering.. settings> about phone>status> sim card status.....
I've 2 more days before I have the 14 days cancel return..
I'm just wondering if the signal bars a myth only being 2
Am I over looking things ?
Other than the signal I have no issues love this phone ..
Any input will be taken on board and appreciated
Thanks for looking and helping
Click to expand...
Click to collapse
My dBm would also hit the lows of -114dbm as well at my place of residence. Both the snapdragon and exynos models I’ve owned. The Oneplus 8 pro showed on average 6dBm gain .

Well it appears my phone is faulty had nothing but issues today and it happened whilst on to my provider three UK..
Onkybhd it 2 weeks tried making me taking it to Samsung.. he'll noo ..I know they'll say nowt wrong with ot as per usual
. Three re sending me a replacement handset tomorrow.. if that's ****e as well.
Looks like I shall have to look else were always had sammy..
Had anyone got any good advice what I should get next best / alternative to a note 20..
I'm.not that familiar with other bands as I've always been faithful with Samsung..

Braggster said:
Well it appears my phone is faulty had nothing but issues today and it happened whilst on to my provider three UK..
Onkybhd it 2 weeks tried making me taking it to Samsung.. he'll noo ..I know they'll say nowt wrong with ot as per usual
. Three re sending me a replacement handset tomorrow.. if that's ****e as well.
Looks like I shall have to look else were always had sammy..
Had anyone got any good advice what I should get next best / alternative to a note 20..
I'm.not that familiar with other bands as I've always been faithful with Samsung..
Click to expand...
Click to collapse
I already mentioned it. Oneplus 8 Pro model IN2023 since you're in the UK, else you'll have network incompatibilities.

Hi all hope we're safe and well
Just a quick update
New phone received yesterday
So far so good Signal working perfect now
Thanks for input limey
Looked at the one plus looks a decent piece of kit
May go down that road after I've finished with this note 2 years time haha

Braggster said:
Hi all hope we're safe and well
Just a quick update
New phone received yesterday
So far so good Signal working perfect now
Thanks for input limey
Looked at the one plus looks a decent piece of kit
May go down that road after I've finished with this note 2 years time haha
Click to expand...
Click to collapse
Glad you found a resolution.

...

Question UK Phone Signal.

Hi. Does anyone in the UK find that they are having issues with keep signal? So far I've been a few places where my Note 9 would have great signal but the flip is either patchy or just disconnected from signal altogether. I'm on Three but haven't tried it with any other network. My Note 9 was also on Three too.

O2 UK poor signal as well...

@Barmenchik
That was the next service I was going to try. Hopefully when Samsung does an update it will fix it.

I'm with EE (Everything Expensive) and cannot get a signal when I'm in my local curry house, never had this happen before with all my other phones hmm

I would tend to agree, I'm on Three and at times I have a really low signal in areas where it should be strong

Friends who have time, create a theme in Samsung Members! And share the link, and we will all go there and write ...
Galaxy Z Fold | Z Flip
Get ready to unfold your world
eu.community.samsung.com

I've just moved to the UK and I found it rather weird that when I'm on EE I see 2 bars of reception max, pretty often only 1 bar. But then I had nothing to compare it to as it's the first time I'm using a SIM card in the UK...

My reception is still very patchy. Only time it is consistent is when I'm at home, but it does use wi-fi calling a lot.

The-Observer77 said:
Hi. Does anyone in the UK find that they are having issues with keep signal? So far I've been a few places where my Note 9 would have great signal but the flip is either patchy or just disconnected from signal altogether. I'm on Three but haven't tried it with any other network. My Note 9 was also on Three too.
Click to expand...
Click to collapse
Yes I noticed this from day one, contacted samsung and they said send for repair.....but I feel its more a software thing. Although the signal gets worse when it's flipped too. Someone on Samsung members forum said they thought it was a smaller than normal antenna and they sent it back!

I'm hoping that when it gets updated to Android 12 it will be better.

Question Cellular/network problems S22 Ultra

From few mounths I have problems with stability cellular in my phone.- Exynos Europe.
Often anybody write text message for me and i don't recive anything or sender recive raport "fault".
Internet speed is lower compare to my fold 2.
Next sometimes with full bars I recive message with trying anybody call to me.
Connectivity in this phone is very terrible from few mounths without any improvement.
I flashed rom via odin
Replace sim card.
Use only 2g mode or VoLte
Nothing help.
I found similar topic without solving:
S22 Ultra signal/network problems
Hi all, I got the phone last week, since then I couldn't have a decent conversation with it, signal drops all the time but I have full bars, Internet drops in the same time, I cannot listen to a full song on YT, if I'm on Bluetooth with the headsets, Bluetooth connection drops too, basically I...
eu.community.samsung.com
What will i do?
Send to service or waiting to next updates?
Now I use my fold 2 and S22U isn't useful

_GRIZZLY_ said:
From few mounths I have problems with stability cellular in my phone.- Exynos Europe.
Often anybody write text message for me and i don't recive anything or sender recive raport "fault".
Internet speed is lower compare to my fold 2.
Next sometimes with full bars I recive message with trying anybody call to me.
Connectivity in this phone is very terrible from few mounths without any improvement.
I flashed rom via odin
Replace sim card.
Use only 2g mode or VoLte
Nothing help.
I found similar topic without solving:
S22 Ultra signal/network problems
Hi all, I got the phone last week, since then I couldn't have a decent conversation with it, signal drops all the time but I have full bars, Internet drops in the same time, I cannot listen to a full song on YT, if I'm on Bluetooth with the headsets, Bluetooth connection drops too, basically I...
eu.community.samsung.com
What will i do?
Send to service or waiting to next updates?
Now I use my fold 2 and S22U isn't useful
Click to expand...
Click to collapse
Sorry mate the fold has the snapdragon which is better in terms of Modem... The Modem on the exynos is faulty sometimes... Try to swap it for a new one

Goku1992 said:
Sorry mate the fold has the snapdragon which is better in terms of Modem... The Modem on the exynos is faulty sometimes... Try to swap it for a new one
Click to expand...
Click to collapse
I agree with snap in fold, Exynos is problematic but previous I had few samsung phones with exynos high and mid (Note 5, A8, A5, Note 9, N20U) and I have first time similar problems a lot of time with cellular like in S22U.
So after that I supposed hardware defect in my device. Only thing what can I do is sent to service for replace motherboard or happily all device.
Services in my country are problematic and usually first flash soft via odin then sent back but I must try.

_GRIZZLY_ said:
I agree with snap in fold, Exynos is problematic but previous I had few samsung phones with exynos high and mid (Note 5, A8, A5, Note 9, N20U) and I have first time similar problems a lot of time with cellular like in S22U.
So after that I supposed hardware defect in my device. Only thing what can I do is sent to service for replace motherboard or happily all device.
Services in my country are problematic and usually first flash soft via odin then sent back but I must try.
Click to expand...
Click to collapse
I am a bit late but did you find a solution for your problem? I have the same problem i tried flashing with odin and replacing my sim card but nothing helped.

marios096 said:
I am a bit late but did you find a solution for your problem? I have the same problem i tried flashing with odin and replacing my sim card but nothing helped.
Click to expand...
Click to collapse
Maybe updates?
Now my S22U have girlfirend A13 and overall looks fine but data transfer sometimes is problematic - low load dates compare to my fold 2 and city centre with good cellular strength, same network

_GRIZZLY_ said:
Maybe updates?
Now my S22U have girlfirend A13 and overall looks fine but data transfer sometimes is problematic - low load dates compare to my fold 2 and city centre with good cellular strength, same network
Click to expand...
Click to collapse
Is your phone exynos? Sadly it have weaker Modem than snapdragon fold..

I found many references to antenna problems in the web for this phone. I think that probably it's a well known problem; probably a HW failure in the antenna. I would send it to repair.

I send it to repair yesterday but i dont know if they found the problem or they just send it back and say that the phone is okay

Goku1992 said:
Is your phone exynos? Sadly it have weaker Modem than snapdragon fold..
Click to expand...
Click to collapse
Yes unfortunately Exynos, standard model for EU...

_GRIZZLY_ said:
Yes unfortunately Exynos, standard model for EU...
Click to expand...
Click to collapse
Then its normal :/

Goku1992 said:
Then its normal :/
Click to expand...
Click to collapse
Really? What _Grizzly_ describes is also normal for you? Which operator are you using?

ZXR said:
Really? What _Grizzly_ describes is also normal for you? Which operator are you using?
Click to expand...
Click to collapse
They exynos Modem is weak... Nothing New sadly... Especially in buildings you can see a difference vs other phones with better Modem like the fold with snapdragon.... I have both s22u exynos (my girlfriend is using it) and s22u snapdragon (mine) both with Telekom and especially in large buildings you See the difference. Also the Modem struggles with poor Signal... More drain also. In wlan both phones are the same...

Goku1992 said:
especially in large buildings you See the difference
Click to expand...
Click to collapse
Exactly. Now my S22U use girlfiriend and 2 weeks ago in city centre my fold 2 ( my best device in basic function like GSM connection comapre to previous Exynos devices N5>N9>A5 2017, A8 2018- only Note 20U was good but battery life was too bad, even 2 year note 9 had better results) fast connect to data transfer and S22U have problem to load website - same carrier. Maybe only sometimes see similar issue in her S22U but she can irritating.
I am interesting S23 series in this cause like cellular connection and stability.

_GRIZZLY_ said:
Exactly. Now my S22U use girlfiriend and 2 weeks ago in city centre my fold 2 ( my best device in basic function like GSM connection comapre to previous Exynos devices N5>N9>A5 2017, A8 2018- only Note 20U was good but battery life was too bad, even 2 year note 9 had better results) fast connect to data transfer and S22U have problem to load website - same carrier. Maybe only sometimes see similar issue in her S22U but she can irritating.
I am interesting S23 series in this cause like cellular connection and stability.
Click to expand...
Click to collapse
The s23 will have snapdragon worldwide so very good Modem for everyone also made by TSMC so less heating more speed and better battery )

Goku1992 said:
The s23 will have snapdragon worldwide so very good Modem for everyone also made by TSMC so less heating more speed and better battery )
Click to expand...
Click to collapse
I am sorry to disapoint you but it will not be made by TSMC.. It will be an overclocked version made by samsung itself..

andreasarxon said:
made by TSMC
Click to expand...
Click to collapse
Hope dies last.
andreasarxon said:
It will be an overclocked version made by samsung itself..
Click to expand...
Click to collapse
It's confirm information?

andreasarxon said:
I am sorry to disapoint you but it will not be made by TSMC.. It will be an overclocked version made by samsung itself..
Click to expand...
Click to collapse
Nope its from TSMC the leaks that said that also deleted his tweet 100% TSMC!

Goku1992 said:
They exynos Modem is weak...
Click to expand...
Click to collapse
The last direct SD/Exy comparison I did myself was with two Note 10, it was frequency dependent. +- 3dB on one and +-3dB on the other. Therefore I started wondering why it's that extreme on _Grizzly_s device.
In addition he says his Note 20 was fine regarding signal quality, the S22u not (I assume both Exynos). If I check dBm values measured in the Weka lab, I see:
N20U TX
GSM
20,4 25,4
LTE
17,2 18,9 17,6
N20U RX
GSM
-98 -105
LTE
-95 -96 -93
S22U TX
GSM
21,6 25,4
LTE
17,2 20,0 18,5
S22U RX
GSM
-100 -107
LTE
-95 -95 -92
Therefore my assumption would be that his S22U has a defect.

Question S22 Ultra Poor Reception .. Everyone else face the same issue ?

Poor Reception from wifi and mobile network too .. I used to get 45 mbps from the same room and from same chair sitting position with my oneplus 7 pro .. now I hardly get 1 or 2 mb .. some times even disconnect ..
I never faced this issue while I was on oneplus 7 pro for 3 years on same router and network ..
I bought my moms iqoo z3 phone for testing .. it even getting 45mbps but my s22 ultra only 2-3 mbps ..
expect this reception I am really happy with the phone .. its very productive <3
I can't change my phone plz let me know if you have any solutions .. I tried resetting etc none solved my issue
after positing regarding this on some fb group I came to know many s22 ultra users facing this issue .. Are you facing the same as well ?? Please let me know below

1) do you have a metal hands?
2) is your hands covered by golden powder?
3) whats is your case?
4) wanna share a wifi scanner app screenshot with us? we are not a mindreaders

Personalgroups said:
Poor Reception from wifi and mobile network too .. I used to get 45 mbps from the same room and from same chair sitting position with my oneplus 7 pro .. now I hardly get 1 or 2 mb .. some times even disconnect ..
I never faced this issue while I was on oneplus 7 pro for 3 years on same router and network ..
I bought my moms iqoo z3 phone for testing .. it even getting 45mbps but my s22 ultra only 2-3 mbps ..
expect this reception I am really happy with the phone .. its very productive <3
I can't change my phone plz let me know if you have any solutions .. I tried resetting etc none solved my issue
after positing regarding this on some fb group I came to know many s22 ultra users facing this issue .. Are you facing the same as well ?? Please let me know below
Click to expand...
Click to collapse
I have problems with the mobile reception on my S22 Ultra on Vodafone UK.
I am trying to find out the correct firmware for my provider and to flash it without resetting my phone.

What router do you use, check its settings. Does mobile reception improve when you are outside?

You are using exynos right?

My wife's first S22 Ultra had horrible connection. Most times she couldn't receive or make any calls. That went on for about 2 months. Went back to Tmo and used the warranty and they shipped us another one. The new one works perfectly as it should have.
I would recommend that if you are having connection issues, contact the carrier/customer service and use the warranty,should be a year. In my wife's situation, the connection issue was the beginning of the phone not working at all. Samsung knows about their hardware issue and hasn't addressed it properly. Its a hardware issue

I have not had a issue with reception once since getting this phone from Samsung.. It is on T-Mobile. No issues with my home router either.

avid_droid said:
My wife's first S22 Ultra had horrible connection. Most times she couldn't receive or make any calls. That went on for about 2 months. Went back to Tmo and used the warranty and they shipped us another one. The new one works perfectly as it should have.
I would recommend that if you are having connection issues, contact the carrier/customer service and use the warranty,should be a year. In my wife's situation, the connection issue was the beginning of the phone not working at all. Samsung knows about their hardware issue and hasn't addressed it properly. Its a hardware issue
Click to expand...
Click to collapse
I had S22U half year and from few months I was problems with connection, don't recive messages or messages with trying calls for me in t-mobile Poland.
I put sim card to fold 2 and little smaller but again similar problems, change sim card and again.
Then I change my carrier operator and from 2 months everything works perfect with fold 2.
Now my s22U have girlfriend and too everything works good with her carrier (of course no t-mobile)
In my case issues were with t-mobile. I see a lot opinions who have connection issues have t-mobile and does not matter country.

Goku1992 said:
You are using exynos right?
Click to expand...
Click to collapse
no mate snapdragon edition

US unlocked on TMobile here. I have fantastic reception both on wifi and network.
If you're genuinely getting 1/10th of the speed on your S22U on the same network as other phones, then that sounds like a hardware issue and a warranty replacement.

Personalgroups said:
no mate snapdragon edition
Click to expand...
Click to collapse
Then you need to swap the device. If you had Problems with another Smartphone change your carrier. My snapdragon has very good reception. My exynos has weak singal but its okay use it only as Backup phone