Develop Bugs

s4 mini duos network problems

Hello,
I appeal to all the users that have samsung galaxy s4 mini duos (i9192) to give me a honest opinion on their experience usage about this issue
I want to buy the phone because i have 2 sims, work and home and need both always on but i've been read that this phone has major problems with network signal such as:
"Poor network performance. I'm forced to restart 4 to 5 times per day to regain the network access. I checked from my service providers, no issues on their part. Dual Sim a failure. Apart from network issues, the design, ram performance are average. I'll recommend not to buy this instrument unless the dual-sim network problem is rectified."
Like this, there are many more in samsung phone forum.
Anyone can give me their opinion?

False. I'm using it without problems with two sims work/private. Signal strength may be lower, but it's not so bad. Device is very fast, in antutu it has more points than 4 core htc one x+ or galaxy s3.
Software is bit buggy, but nothing serious.
Wysłane z mojego GT-I9192

mar10o said:
False. I'm using it without problems with two sims work/private. Signal strength may be lower, but it's not so bad. Device is very fast, in antutu it has more points than 4 core htc one x+ or galaxy s3.
Software is bit buggy, but nothing serious.
Wysłane z mojego GT-I9192
Click to expand...
Click to collapse
Thanks for the quick answer.
Yes, i have read many reviews and all shows very good results. But if you go to http://reviews.in.samsung.com/7463-en_in/GT-I9192ZWAINU/samsung-galaxy-s4-mini-reviews/reviews.htm you will see the very bad opinions.
Seems that the phone in bad coverage areas lost signal and don't regain signal unless you restart the phone or the network. Have you already been in bad coverage areas?

It will regain signal. For example yesterday - I was in underground parking lot and signal was very poor to none, but somehow I've got the incoming call when moving to other spot.
Maybe it's firmware related. I've updated manually to amh2 version through odin. Mine new csc is ser - Russia
Wysłane z mojego GT-I9192

Anyone else that has not experienced this problems?

I would like to know this also, I'm considering buying it solely because of the "Dual Sim" but I keep reading lots of people complaining about the signal issues.

I dont have any problems with my I9192 been in my hands for 2 months by now the network problem you describe it's very rare just couple of times since I've been using it but I've turn on and off airplane mode
for me it's a really good phone
Sent from my GT-I9192 using Tapatalk 4

Same problem
I also have the duos version. Once the signal is lost/falls in the dead spot region, it doesn't come back a automatically. Fed up with this.. after buying such a high end phone, restarting all the time to get network! What is the use of fast processor and all stuff if we can't make a phone call with it? And after reading the comments on the below page, it is clear that this is a known issue of the model:
gsmarena.com/samsung_i9190_galaxy_s4_mini-reviews-5375.php
Any solution for this? The handset has turned out to be useless.

I have not had a problem like this with mine, it works perfect. I live in a bad signal area and if I go down stairs in my house the phone will lose the signal , when I go back up stairs the phone always regains the signal with no problems.
I can't fault this phone, it's ten times better than my last one, HTC Desire V

fburgos said:
I dont have any problems with my I9192 been in my hands for 2 months by now the network problem you describe it's very rare just couple of times since I've been using it but I've turn on and off airplane mode
for me it's a really good phone
Sent from my GT-I9192 using Tapatalk 4
Click to expand...
Click to collapse
Thanks,
Only the fact that you mentioned you have to do airplane mode 2 times is just severe enough, because in a phone with this price range that's a problem that should NEVER occur, and you can be the lucky guy that just has good coverage signal all of the time.
I came to the conclusion that it happens with much moore models than the ones that not happen.
I'm going to order the phone even with this feedback hoping that i have a flash of luck and my phone doesn't have the problems, because i've been waiting months for a dual sim phone with top performance and this seems to be the ideal phone to me.
I will post my experience here, if anything goes wrong i will try to sell it.

grajeshg said:
I also have the duos version. Once the signal is lost/falls in the dead spot region, it doesn't come back a automatically. Fed up with this.. after buying such a high end phone, restarting all the time to get network! What is the use of fast processor and all stuff if we can't make a phone call with it? And after reading the comments on the below page, it is clear that this is a known issue of the model:
gsmarena.com/samsung_i9190_galaxy_s4_mini-reviews-5375.php
Any solution for this? The handset has turned out to be useless.
Click to expand...
Click to collapse
Yes, i totally agree with you.
I don't know how a brand like Samsung brings to the market a phone in this price range with these problems. And worst, dont't give a solution to them. Did you try to contact Samsung or use the warranty with them?

Same Issue with Samsung GT-I9192
Hi All,
I am facing the same issue with my Samsung GT-I9192, which I purchased on 1st Sep.
I am using 2 simcards, one being Vodafone and the other Idea, India region.
Surprisingly the issue is only with Vodafone, where the signal after dropping (very frequently) does not refresh.
In case of Idea simcard, the signal refresh is working fine.
I am not able to understand if the problem is with the service provider, sim card, hardware or the software.
I used my vodafone simcard with Galaxy Core (another dual sim phones), and they seem to work fine,
which gets me all the more confused.
The only difference that I notice is in the Mobile Network Type.
Its EDGE:2 for Vodafone and UMTS:3 for Idea, wonder if this has got anything to do with the network issues.
I did the default available 2 firmware upgrades since purchase, they seem to have worsened the problems.
Let me know if you are facing the same issue, with the same service provider.
Need to keep a close watch on the solution, as it seems to be affecting more people than expected, surprisingly couldn't find any issues a month back during the time of purchase....
Regards,
Varun

varun_b said:
Hi All,
I am facing the same issue with my Samsung GT-I9192, which I purchased on 1st Sep.
I am using 2 simcards, one being Vodafone and the other Idea, India region.
Surprisingly the issue is only with Vodafone, where the signal after dropping (very frequently) does not refresh.
In case of Idea simcard, the signal refresh is working fine.
I am not able to understand if the problem is with the service provider, sim card, hardware or the software.
I used my vodafone simcard with Galaxy Core (another dual sim phones), and they seem to work fine,
which gets me all the more confused.
The only difference that I notice is in the Mobile Network Type.
Its EDGE:2 for Vodafone and UMTS:3 for Idea, wonder if this has got anything to do with the network issues.
I did the default available 2 firmware upgrades since purchase, they seem to have worsened the problems.
Let me know if you are facing the same issue, with the same service provider.
Need to keep a close watch on the solution, as it seems to be affecting more people than expected, surprisingly couldn't find any issues a month back during the time of purchase....
Regards,
Varun
Click to expand...
Click to collapse
In my case, it's Vodafone also, but is in Western Europe.
My concern is that i have exactily the same problem in my present phone (Sony Tipo Dual) and it's the main reason (along side the big improve of speed and etc) for buying this phone. At the present, people call to me and they say that phone answers occupied (no network signal) and i look to the phone and it shows top signal strenght. I'm beginning to think that dual sim phones with android have some limitations (maybe antenna limitations).

ricjps said:
Hello,
I appeal to all the users that have samsung galaxy s4 mini duos (i9192) to give me a honest opinion on their experience usage about this issue
I want to buy the phone because i have 2 sims, work and home and need both always on but i've been read that this phone has major problems with network signal such as:
"Poor network performance. I'm forced to restart 4 to 5 times per day to regain the network access. I checked from my service providers, no issues on their part. Dual Sim a failure. Apart from network issues, the design, ram performance are average. I'll recommend not to buy this instrument unless the dual-sim network problem is rectified."
Like this, there are many more in samsung phone forum.
Anyone can give me their opinion?
Click to expand...
Click to collapse
I have smiliar problem. I have contacted samsung service center they assured to replace antenna but after 10 days antenna not yet came. So waiting for it. Is this problem is due to hardware or software i am not sure.
---------- Post added at 09:34 PM ---------- Previous post was at 09:29 PM ----------
ricjps said:
In my case, it's Vodafone also, but is in Western Europe.
My concern is that i have exactily the same problem in my present phone (Sony Tipo Dual) and it's the main reason (along side the big improve of speed and etc) for buying this phone. At the present, people call to me and they say that phone answers occupied (no network signal) and i look to the phone and it shows top signal strenght. I'm beginning to think that dual sim phones with android have some limitations (maybe antenna limitations).
Click to expand...
Click to collapse
In my case S4 mini network refresh is not working for secondary sim (aircel India) and working fine for primary sim Tata docomo. I buyed this mobile as it has 1.5 gb RAM with dual sim instead of Nexus 4.

ricjps said:
Thanks,
Only the fact that you mentioned you have to do airplane mode 2 times is just severe enough, because in a phone with this price range that's a problem that should NEVER occur, and you can be the lucky guy that just has good coverage signal all of the time.
I came to the conclusion that it happens with much moore models than the ones that not happen.
I'm going to order the phone even with this feedback hoping that i have a flash of luck and my phone doesn't have the problems, because i've been waiting months for a dual sim phone with top performance and this seems to be the ideal phone to me.
I will post my experience here, if anything goes wrong i will try to sell it.
Click to expand...
Click to collapse
thats true it should never occur, i think its implementation problem, android its not mean to be for dual sim phones the solution for dual sim on android its a samsung workarround, it should not be buggy but has some problems it does not make the phone unusable for me, I don't get coverage all the time, I travel from city to city and get poor coverage all the way so i think its not a big issue since it happen just a few times.

sriram.yenchrla said:
I have smiliar problem. I have contacted samsung service center they assured to replace antenna but after 10 days antenna not yet came. So waiting for it. Is this problem is due to hardware or software i am not sure.
---------- Post added at 09:34 PM ---------- Previous post was at 09:29 PM ----------
In my case S4 mini network refresh is not working for secondary sim (aircel India) and working fine for primary sim Tata docomo. I buyed this mobile as it has 1.5 gb RAM with dual sim instead of Nexus 4.
Click to expand...
Click to collapse
Hi Sriram,
My problem is very similar, Vodafone on either sim slots gives network problems, and Idea on either sim slots works fine. That makes me think that the problem must be hardware / software related to Network type. Its EDGE2 for vodafone and GPRS1 for Idea. What is the network type of your sim cards?

Phone defect.. Not related to Sim card
ricjps said:
Yes, i totally agree with you.
I don't know how a brand like Samsung brings to the market a phone in this price range with these problems. And worst, dont't give a solution to them. Did you try to contact Samsung or use the warranty with them?
Click to expand...
Click to collapse
Started with an email to CEO, Samsung India. I shall update as I get the reply.
varun_b said:
....I am using 2 simcards, one being Vodafone and the other Idea, India region.
Surprisingly the issue is only with Vodafone, where the signal after dropping (very frequently) does not refresh.
In case of Idea simcard, the signal refresh is working fine.
I am not able to understand if the problem is with the service provider, sim card, hardware or the software.
Regards,
Varun
Click to expand...
Click to collapse
..
..
varun_b said:
Hi Sriram,
My problem is very similar, Vodafone on either sim slots gives network problems, and Idea on either sim slots works fine. That makes me think that the problem must be hardware / software related to Network type. Its EDGE2 for vodafone and GPRS1 for Idea
Click to expand...
Click to collapse
I use idea in the first slot and BSNL in the second slot. The trouble occurs with BOTH SIM. Earlier I used idea -Vodafone pair, the problem was still there. I live in am area where all operators have weak/varying coverage. Airtel and aircel have already been reported as showing same problem. All the users are affected with this issue, so it is clear that this has nothing to do with the operator, it is a fault of the phone either hardware or software. I think you have idea Sim working fine only means idea network is better in your area and may not need frequent network cell changeover. (?) And another fact we can see from the reports is, that, almost ALL THE COMPLAINTS have been reported from INDIA where the model released is the duos.

S4 Mini Network issues.
I too have a S4 Mini for less than a month and I am also facing network issues. One thing to notice is that the sim with internet doesn't have issues. Irrespective of which slot it is in. Currently I have Vodafone IN on Sim 1 and Airtel on 2 (with 3G). Airtel works fine and Voda has issues.
I did speak to Samsung care, they were very nice, however the problem wasn't solved, I have been adviced to go to Samsung service center and get the S/w reimaged.
I still haven't done that, however what I did was to reset the phone and while I was browsing on the play store I got a software called "Where is my Signal" by Grey Boy. For some reason I feel it is working fine now. I have not had any issue from last evening, baring one time when I was on a long conf call for around 150 mins today. else it has been working fine and receiving calls on both sims too.
I had used this software to refresh the network once, it has helped me, not sure if this is going to sustain but for now it is good.
If some one else also has this software installed and is finding this to solve the issues kindly post the same on the forum and may be helpful.
Will repost tomorrow again with the status.
BTW I agree to many opinions in this thread that Samsung should have done some testing or atleast after many of these issues coming up needed to provide a patch upgrade.
Regards
HB

Will factory reset work?
Hbalisavira said:
.....however what I did was to reset the phone and while I was browsing on the play store I got a software called "Where is my Signal" by Grey Boy.
Regards
HB
Click to expand...
Click to collapse
I had tried three apps of that kind: where is my signal, network booster(marcstealth), and network refresher lite. None of them could overcome the strange problem of this phone though at first they seemed to be working. Another question is, how do we know when to refresh network? If we know the signal is lost, we can restart or do something like that. Then there is one more issue: sometimes it shows good/full signal strength, but when try to make a call, will realize that it was false! I made to run the network booster app run when signal is low, using tasker app -but we are not supposed to live such a life using this celebrated costly handset.
But one thing in your post is of much importance. DID THAT RESET WORK? You haven't said much about that.
Regards,
Rajesh

grajeshg said:
I had tried three apps of that kind: where is my signal, network booster(marcstealth), and network refresher lite. None of them could overcome the strange problem of this phone though at first they seemed to be working. Another question is, how do we know when to refresh network? If we know the signal is lost, we can restart or do something like that. Then there is one more issue: sometimes it shows good/full signal strength, but when try to make a call, will realize that it was false! I made to run the network booster app run when signal is low, using tasker app -but we are not supposed to live such a life using this celebrated costly handset.
But one thing in your post is of much importance. DID THAT RESET WORK? You haven't said much about that.
Regards,
Rajesh
Click to expand...
Click to collapse
The reason for reset was to ensure that none of the softwares I had installed were causing the issue. The reset didn't change much compared to the way it was earlier.
Some observations of when the problem actually happens (again this is my observation and doesn't need to be the same in your case)
> When I am on a long incoming call on the sim which has Internet.
> Noticed that short calls don't impact the network.
> If there is a call drop imm after you receive a call.
I am planning to get the phone firmware re-imaged from the service center however I will need atleast 10 more days to do it as I am currently in a different city and I am not carrying the invoice copy.
BTW Rajesh, did u get any response from the CEOs office?
Regards
HB

Note 10+ 5G - Connecting to 5G looses GPS signal. Known issue by Samsung.

Thought i would post this here.
Here in the UK not all areas have 5G. But if your using your phone as a Sat Nav and pass through an area that has 5G. you may notice you lose GPS signal.
It takes a considerable amount of time to reconnect.
Spoke to Samsung and they are aware of the issue (Although they kept me going through multiple testing processes before admitting and telling me this)
http://samsung.lucidcx.com//cx-dres...e10_10 Customer Consultant Guide Ver 6.0.pdf
Page 42.
Chat Screenshot attached!
No idea what update will include this fix. It does mean though i will have to lock the device to LTE signal to avoid loss in signal when traveling and using my device as a Satnav!

Interesting read, that pdf

raul6 said:
Interesting read, that pdf
Click to expand...
Click to collapse
Yup thank you for sharing.
It is funny that they say "Note10+ 5G" signal is weak when using 5G.
Actually many reported the same with the other 4G devices...

This problem still exists with the T-Mo Note 10 5G that was just released. There was a day one update, but it didn't resolve anything.

T-Mo just pushed an update today that solved my GPS issues. Version N976USQU1ASL7. This should have been available on Day 1.

Never mind, the T-Mobile update didn't fix this. GPS still is nonfunctional in 5G mode. TMobile support is saying it's because the AGPS in the phone doesn't have enough data to triangulate position because there's not enough 5G enabled towers in my area yet and to wait until 2020 when more towers come online.

gmtom1 said:
Never mind, the T-Mobile update didn't fix this. GPS still is nonfunctional in 5G mode. TMobile support is saying it's because the AGPS in the phone doesn't have enough data to triangulate position because there's not enough 5G enabled towers in my area yet and to wait until 2020 when more towers come online.
Click to expand...
Click to collapse
I quite literally almost pulled the trigger on it now I'm second guessing (again)
Sent from my HD1925 using Tapatalk

I'd wait until the Sprint merger and/or more towers are upgraded to 5G before pulling the trigger on this device. The GPS being borked affects too many other things on the phone.

I have the T-Mobile Note 10 + 5G and I am having no 5G GPS issues. I live in a 5G area and I use it regularly. Please note, I DID have GPS issues. I cleared the DATA for Google Maps in the apps section (not just the cache) and reset the maps app from scratch. That was right after the last update. My issue went away and never returned. I hope this will help you.
By the way, 2 points. First, most T-Mobile personnel are clueless about 5G. I have been speaking to them for weeks. Even Samsung support is iffy. But you could try them if this doesn't resolve your issues.
Second, the Verizon 5G phone and the T-Mobile 5G phone are completely different beasts. People want to compare them but the Verizon is gen 1 and the T-Mobile is gen 2 on 5G chips and they handle the switch between 4G and 5G completely differently. 5G on the Verizon is tacked on to a 4G chipset with the x50 modem while the T-Mobile has the x55 modem which integrates both. Any comparison is coincidence at best. As I said, my 5G phone GPS issues are completely resolved. I hope a reset of the Maps app will resolve yours. Actually, since the last update, ALL my issues seem to be resolved. I am one happy camper and there was a point in time when I was discussing an exchange. But no more.

DEAD 5G!?!?

Hey so I'm ojbthe T-Mobile network in New York City where since day one of having the phone I always at least saw that I was getting 5g speed and it was never an issue, however not too long ago after the second update for the s20 plus (the one one that released 2/25/20) data on a 5g network is completely dead. Not internet at all or MMS, just calls and text. If I can change networks to go to LTE only everything is fine and 5g works on other capable device. No a network issue and I don't think it's a hardware issue since I didn't have it until a update. Anyone else have this problem?

Since you're in NYC I wouldn't be surprised if there's more network issues at the moment because of things related to the pandemic. You got national guard in town setting up a hospital and the Navy medical ship coming soon. I'm sure there's more demand on the network right now?

androidkid27 said:
Hey so I'm ojbthe T-Mobile network in New York City where since day one of having the phone I always at least saw that I was getting 5g speed and it was never an issue, however not too long ago after the second update for the s20 plus (the one one that released 2/25/20) data on a 5g network is completely dead. Not internet at all or MMS, just calls and text. If I can change networks to go to LTE only everything is fine and 5g works on other capable device. No a network issue and I don't think it's a hardware issue since I didn't have it until a update. Anyone else have this problem?
Click to expand...
Click to collapse
I've been having the same issue and spoke with customer service but nothing got fixed so I ended up going to the LTE 4G network instead because every time I go to the 5G I cannot send or receive mms messages and or the internet as well.

andrewoid71 said:
I've been having the same issue and spoke with customer service but nothing got fixed so I ended up going to the LTE 4G network instead because every time I go to the 5G I cannot send or receive mms messages and or the internet as well.
Click to expand...
Click to collapse
Things got a little better when I went outside the house for a little but sometime is still goes out here in there when I'm inside. The issue hasn't been as bad as before however, I'm using my 5g now

androidkid27 said:
Things got a little better when I went outside the house for a little but sometime is still goes out here in there when I'm inside. The issue hasn't been as bad as before however, I'm using my 5g now
Click to expand...
Click to collapse
WOW, same here. Matter of fact just today I received my new free SIM card from T-Mobile.
Called to activate the new card and it's been better service 5G running sending mms, internet running, etc.

Question Cell Coverage Terrible

Came from Unlocked Note20 Ultra which I had zero issues with cellular reception on Verizon.
Bought the Unlocked Z Fold3 and have terrible cellular reception in nearly all places I never had issues on the Note20 Ultra.
Are the antenna bands different?
Is the new metal back or frame drastically reducing range?

okpank said:
Came from Unlocked Note20 Ultra which I had zero issues with cellular reception on Verizon.
Bought the Unlocked Z Fold3 and have terrible cellular reception in nearly all places I never had issues on the Note20 Ultra.
Are the antenna bands different?
Is the new metal back or frame drastically reducing range?
Click to expand...
Click to collapse
You got a bad phone. No issues on mine, same as S21ULTRA, and note 20

Try to change your SIM. It helped me.

I also changed the N20U to the FZ3 and I did not notice anything like that. I think the FZ3 has an even better coverage than the Note.
The only difference is that it switches more often from LTE to 3G, thus VoLTE turns off. But it's generally very good.
BTW WiFi coverage is much better.

I'm having the same type of issues. T-mobile here in areas where I had solid 5G or LTE I either have no service or it flips to edge/lte/5g. Probably going to send it back at this point.

Im tmobile and all is the same or better then my notw 10 plus was.
I did get a new sim card for 5g

xile6 said:
Im tmobile and all is the same or better then my notw 10 plus was.
I did get a new sim card for 5g
Click to expand...
Click to collapse
I used the new sim card from Samsung as well R15. I had T-Mobile do a reset from their end and I did a factor reset and didn't use smart switch this time. I'm going to be traveling today so we'll see if it happens again. Fingers crossed.

T-Mobile in north Texas. I'm getting the same results as my Note 10+ did, using the same sim. 5G data is very fast. May be an issue with yours.

Can we say either way about the cellular performance?
Has anyone seen a video comparing F2 vs F3 cellular performance?

xbrandx said:
I used the new sim card from Samsung as well R15. I had T-Mobile do a reset from their end and I did a factor reset and didn't use smart switch this time. I'm going to be traveling today so we'll see if it happens again. Fingers crossed.
Click to expand...
Click to collapse
Don't use SmartSwitch if migrating to a different device or OS version... its not that smart.
Probably ok for migrating just your contacts though.
Next reload on my 10+ I'll test it same to same and see how it does. Definitely don't use it to back up critical data though... remember Kies?

AT&T in N Texas, from N20U to ZF3...Same. I get some network issues occasionally.
You might need a new sim, I'm thinking about doing that myself.
My fold is also the unlocked from Sammy.

dirtybudha said:
AT&T in N Texas, from N20U to ZF3...Same. I get some network issues occasionally.
You might need a new sim, I'm thinking about doing that myself.
My fold is also the unlocked from Sammy.
Click to expand...
Click to collapse
New sim, install yourself, handle it like a stick of ram.
ESD can damage it; very little built in out of circuit protection. Most phone store salespeople handle them extremely carelessly... you pay the price when it fails sometimes even months, years latter. Most sim cards fail because of previous ESD exposure just like ram sticks.

blackhawk said:
New sim, install yourself, handle it like a stick of ram.
ESD can damage it; very little built in out of circuit protection. Most phone store salespeople handle them extremely carelessly... you pay the price when it fails sometimes even months, years latter. Most sim cards fail because of previous ESD exposure just like ram sticks.
Click to expand...
Click to collapse
Oh, I'm familiar. Build computers before, always upgrade my RAM myself, and have 3 Pi's running 3D printers. But that info is always helpful to someone.

I've noticed this too in low coverage areas. My oneplus 7t
blackhawk said:
Don't use SmartSwitch if migrating to a different device or OS version... its not that smart.
Probably ok for migrating just your contacts though.
Next reload on my 10+ I'll test it same to same and see how it does. Definitely don't use it to back up critical data though... remember Kies?
Click to expand...
Click to collapse
Why not? I used smart switch with no issues at all. Transferred everything from my oneplus 7t to the z fold 3. All it does is transfer general data and install the apk files that were on your previous data partition. It doesn't transfer any device specific apps or files.
Please back up your comments with reason and/or experience so you don't have people questioning things that they then have to spend ample time looking up

dirtybudha said:
Oh, I'm familiar. Build computers before, always upgrade my RAM myself, and have 3 Pi's running 3D printers. But that info is always helpful to someone.
Click to expand...
Click to collapse
Lots of needlessly destroyed ram sticks out there...
Sims may have some input protection but you see how small they are.
Acoustichayes said:
I've noticed this too in low coverage areas. My oneplus 7t
Why not? I used smart switch with no issues at all. Transferred everything from my oneplus 7t to the z fold 3. All it does is transfer general data and install the apk files that were on your previous data partition. It doesn't transfer any device specific apps or files.
Please back up your comments with reason and/or experience so you don't have people questioning things that they then have to spend ample time looking up
Click to expand...
Click to collapse
I've seen it screw up myself with contacts.
Seen it's predecessor Kies screw up.
If it works, fine, but don't rely on it.
It can save home settings, themes, etc and that can cause issues especially between devices.
Don't kill the messenger... others here have had trouble with it as well

It is not clear to me whether all problem are with 5G reception, 4G, or switching between the two.

I'm having terrible reception issues with my Z3. My network keeps shutting off and on. USA Verizon.

I have to undo what I wrote early. The Z3 has serious coverage problem. Very often, the signal goes missing, or the 3G-4G-5G networks switch like crazy

Broken record poster asks if this is a VZW problem in the US, or a bigger problem?
Also, there are problems with the phone folded or open?

tangmu said:
T-Mobile in north Texas. I'm getting the same results as my Note 10+ did, using the same sim. 5G data is very fast. May be an issue with yours.
Click to expand...
Click to collapse
Depending on my testing

No 5G on S20 Ultra

Hi,
My S20 doesn't appear to have the 5G option in the network mode for some reason, model number is SM-G988B international. i am on the latest version of Android 12 S one ui 4.0 any help would be most helpful to get 5g on my s20. please note my sim does support 5g as it is able to get 5g network on my old note 10 + 5G

skyler13 said:
Hi,
My S20 doesn't appear to have the 5G option in the network mode for some reason, model number is SM-G988B international. i am on the latest version of Android 12 S one ui 4.0 any help would be most helpful to get 5g on my s20. please note my sim does support 5g as it is able to get 5g network on my old note 10 + 5G
Click to expand...
Click to collapse
Call tech support for your phone company and say you want them to do a line refresh. It's not you, it's them. But before you do that, enable Visual Voice Mail (or whatever app you have) and retrieve all your voice mails because the line refresh wipes them from their storage.
I had an S20 on Metro that had problems getting 5G in places that definitely had it. Then it got to where at home it would only stay on 5G for a short while. It got worse and worse to where it flat out wouldn't switch to 5G. I called support. Went through everything they could think of.
I spent $400 on another S20. SAME #^%##$^ THING! NO 5G!
I called support again and after telling them I'd bought another phone and it did just like the other one, that's when they mentioned the line refresh. Been working great ever since. And this S20 wasn't used by a 24/7 texter so it doesn't have the keyboard burned into the screen like the other one, which I just sold today for $350.

Galane said:
Call tech support for your phone company and say you want them to do a line refresh. It's not you, it's them. But before you do that, enable Visual Voice Mail (or whatever app you have) and retrieve all your voice mails because the line refresh wipes them from their storage.
I had an S20 on Metro that had problems getting 5G in places that definitely had it. Then it got to where at home it would only stay on 5G for a short while. It got worse and worse to where it flat out wouldn't switch to 5G. I called support. Went through everything they could think of.
I spent $400 on another S20. SAME #^%##$^ THING! NO 5G!
I called support again and after telling them I'd bought another phone and it did just like the other one, that's when they mentioned the line refresh. Been working great ever since. And this S20 wasn't used by a 24/7 texter so it doesn't have the keyboard burned into the screen like the other one, which I just sold today for $350.
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Hi Galane, unfortunately, its not that i have bad signal on 5G, its that i can't even select 5G in the mobile networks settings. the max i'm able to get is 4G even though the phone is a 5G phone.

skyler13 said:
Hi Galane, unfortunately, its not that i have bad signal on 5G, its that i can't even select 5G in the mobile networks settings. the max i'm able to get is 4G even though the phone is a 5G phone.
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That was my problem. The line refresh fixed it.