Data drops when calling Pixel 4a - Google Pixel 4a Questions & Answers

Lately I noticed that my data drops when I'm calling with my Pixel 4a. Does anyone knows how to fix this? I've reset the network settings, deleted APN settings, reboot etc but nothing works do far. I've called Google but they only give me the "fixes" I've just mentioned.

Nobody?

Still nothing but did some tests :
I've put my sim in my friends Samsung S20 and it works fine.
I've put my friends sim in my Pixel 4a and have the same problem.
My girlfriend has also a Pixel 4a and has the same problem.
Conclusion so far : The problem is with the Pixel 4a, not with the sim

Today I've putted another sim in my Pixel 4a (different provider) and this time I had no data drop when calling.
New conclusion : My provider's sim and the Pixel 4a don't like each other

Depending on carrier, If it switches to 3G that means that the carrier's network does not have sufficient capacity for VoLTE and LTE is only for data.
Mine provider does this and i see it switching before a call.

Well it doesn't make sense to me at all. My carrier's sim does work flawless in a Samsung.

Related

[Q] Major connectivity issues!

Is anyone else having this problem?
I've got a dual SIM SGS6 from Expansys AU (based in HK). I've got a new nano SIM card in SIM1 slot, SIM2 is empty. I've transferred my service across to the new SIM and confirmed (using an adaptor) that I can get 4G service fine on my Nexus 5.
However on my SGS6 it only shows 3G, H or H+, never 4G. I also find that every few minutes the data connection goes completely. I happened to be in the dual SIM menu at the time and noticed it went from showing only SIM1 being present to both SIM1 and SIM2 being lit up - as you can see this corresponds with the phone showing 'no signal' in the notification tray. It also keeps on sometimes showing the message "When changing SIM Card, Data service slot also can be changed. When you want to change Network mode, please go Mobile network menu and change it." (poor grammar all Samsung's!)
Has anyone seen this before or is it going to be a case of having to ship it back to them?
alanjrobertson said:
Is anyone else having this problem?
I've got a dual SIM SGS6 from Expansys AU (based in HK). I've got a new nano SIM card in SIM1 slot, SIM2 is empty. I've transferred my service across to the new SIM and confirmed (using an adaptor) that I can get 4G service fine on my Nexus 5.
However on my SGS6 it only shows 3G, H or H+, never 4G. I also find that every few minutes the data connection goes completely. I happened to be in the dual SIM menu at the time and noticed it went from showing only SIM1 being present to both SIM1 and SIM2 being lit up - as you can see this corresponds with the phone showing 'no signal' in the notification tray. It also keeps on sometimes showing the message "When changing SIM Card, Data service slot also can be changed. When you want to change Network mode, please go Mobile network menu and change it." (poor grammar all Samsung's!)
Has anyone seen this before or is it going to be a case of having to ship it back to them?
Click to expand...
Click to collapse
Aren't the dial sim versions intended for the Chinese markets? If that's the case, you may not have the correct LTE radio bands for where you live.
Doesn't seem to be that - the bands fit according to the specs and at some points it does connect properly to 4G/4G+ - it just doesn't hold it
Maybe damaged SIM??
Don't think so - it's a brand new Nano SIM direct from the network and works stably in 4G on my Nexus 5 (with a nano to micro adaptor).
Managed to get 4G/4G+ working for a while yesterday and today, but has now stopped working again.
Get a message everytime the phone boots re. network manager (as posted in OP), which doesn't seem right to me. Also finding it still drops all network connections from time to time and even switched off totally at one point today. I've gone back to the retailer requesting a return either for full refund or exchange for replacement.
What was the outcome?
alanjrobertson said:
Don't think so - it's a brand new Nano SIM direct from the network and works stably in 4G on my Nexus 5 (with a nano to micro adaptor).
Managed to get 4G/4G+ working for a while yesterday and today, but has now stopped working again.
Get a message everytime the phone boots re. network manager (as posted in OP), which doesn't seem right to me. Also finding it still drops all network connections from time to time and even switched off totally at one point today. I've gone back to the retailer requesting a return either for full refund or exchange for replacement.
Click to expand...
Click to collapse
Thanks for your posts Alan I am having similar issues with 1 day old Galaxy S6 dual sim in Australia with Telstra.
- Phone loses connection to carrier (both) from time to time - especially if in the sim manager screen but also just randomly
- It looks like it is seeking a network - like polling through different bands
- if i watch it for a while i can often catch it doing this
- on 4 occasions in a day this has then reboot the phone
- it has not yet dropped out during a call - not sure if this is just luck
- I am asking for it to be declared DOA but not sure how that will go yet
I was wondering if you returned or swapped your phone or found a fix.
Thanks
Dodgyd-AU
Sadly that sounds pretty similar to my experience I ended up returning it (although am having ongoing issues with the retailer, Expansys, in getting a full refund!) and subsequently bought a single SIM model direct from Samsung.

Cellular Signal Constantly drops to no bars - UK - giffgaff SIM installed

Hi fellow Honor8 owners,
I have UK Honor 8 32GB model purchased from Vmall.eu/uk. I came from an iPhone 5S and must say I'm loving the device!
Only issue I have been having is constantly, the Data signal keeps dropping out and I am unable to recieve/send calls and texts. It completely drops out for a bit then comes back. This happens very often.
Is anyone else experiencing any similar issues? I have the nano SIM installed into SIM slot 1 .
I will maybe give the SIM a clean and reseat it into tray to see if there is any difference.
otherwise aside from that issue it's been amazing! One thing I'm really impressed is with battery, I am getting like 6 Hours Screen On Time on each cycle! and I'm not such a light user. Great for £260 unlocked!!
:good:
I also have giffgaff. This also happens to me mostly at home. I disabled Carrier Aggregation which seems to help, but it still happens sometimes.
I have the same and set the signal to be 2g only while at home, as I am using home wifi. I get many more bars when I do that and its good for calls and text only of course.
Its a pity we are not able to activity switch mobile data modes depending on our location without rooting.
scoobydu said:
I have the same and set the signal to be 2g only while at home, as I am using home wifi. I get many more bars when I do that and its good for calls and text only of course.
Its a pity we are not able to activity switch mobile data modes depending on our location without rooting.
Click to expand...
Click to collapse
So I tried cleaning and blowing in sim slot maybe debri but no still had the same issue. But then changed to carrier aggregation off, that helped a bit but still had issue often.
Finally resorted to switching to 2G for Calls and SMS only and I am mainly getting full signal strength all the time!
strange.. wonder if it is hardware issue or can be fixed via update?

Lost signal to my second sim

A few days ago this occurred. At that stage I had CM13.1 running. I had not undertaken any new updates.
On Monday I was able to receive and make calls with both SIMs.
On Wednesday I noticed that the second sim wasn't showing up with a signal on the home screen.
Researched and checked the hardware which all came back as OK. I switched the sims into another phone and they work fine on them.
I am now on LOS 14.1 and still face the same issue.
I have noticed that if I toggle off or on the mobile data between phone providers this will allow phone signal to be established, but I lose the signal in the other sim
has anyone experienced anything similar in the past?
If so, would anyone be able to assist in resolving this issue?
Attached are some screenshots of what it looks like for me.
With thanks.
Put your SIM 01 to SIM 2 tray & Sim 2 to SIM 1 tray
then try

at&t 5g not connecting

so I have the phone, I have a 5G plan, I have a 5G Sim, and I live in a 5G area, but I can't get the phone to connect to 5G. I've talked to tech support a couple times to get them to reconfigure on their end to where it should work but it still doesn't. we've triple checked the IMEI and it already comes up as a moto edge on their end too. curiously when looking in phone info (the old secret *#*#data#*#* menu) if I switch the radio to NR only (5g) I get no service, but then if I switch back to anything with LTE it will show the network as 5G for a split second before dropping to LTE. also the network icon on the status bar will also be 5G for a split second before going to LTE. I don't mean the stupid 5ge false advertising marketing crap they came up with, it's actually just straight 5G for that like 10th of a second. I've also tried playing with APNs and apparently the Samsung guys have figured out that you have to set an mnvo to enable 5G so I've been trying that but every time I do it the profile gets zapped immediately upon saving, and obviously the default one can't be edited. also on the default one it doesn't have that mnvo set no matter how many times I do a reset.
does anyone on here have 5G on at&t?

Roaming issue on Android 10 and 11

Hi,
I am not sure whether is this Andorid-related, Samsung modem HW related, or even my ISP host related. Well, let me describe and then move on.
I notice when I am abroad, roaming, that when I go into low signal area and ROAMING (foreign operator) signal is lost, then my phone does not recover back ONLINE when I get back to area with excellent signal. In such situations my phone number will be unavailable even for whole day, if I do not notice. Very annoying, because I need to constantly pull out my glasses to see that tiny signal icon, check signal, whether I ma online or not, and if not, reset. Or use workaround instead of reset, to turn airplane mode ON then back OFF to reset signal, and voila, I am accessible again for calls and messaging.
What I tired already:
first, I checked with my wife, she has LG G7 smartphone AND she is subscribed with another ISP, and she does NOT have any similar problems. we are traveling together to those areas without signal and back to civilization.
then I sent my Samsung Galaxy S10 to service, and of course, they did not find any problems
then I changed my SIM card for new one, but no difference
then I got angry and bought new Samsung S21 Ultra...but first trip abroad, roaming + to areas without singal, same issue again, only me, my wife no problems
So... any idea?
Is it Samsung, my ISP operator (like, maybe they have some weird roaming algos?), or Andorid 10 and 11 bug?
S21 ultra is a terrible phone, it does take nice photos though
[Australia] Samsung Galaxy S21 Ultra 5G Discussion
Hi guys The preorder is up early morning itself. Place my pre-order for S21 Ultra Phantom Navy (Custom Color) from Samsung Online. Noticed the special note that it will take 3-4 weeks for getting it ready. I hope they deliver sooner than 3-4...
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s21 poor signal strength
I've just upgraded to the s21 from the s10. Problem is that I now only get 1 bar showing on the signal strength most of the time (including home). On the s10 it was on 3 bars most of the time using the same network and SIM. If I swap the SIM card back to the s10 I get 3 bars showing again I...
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