Database Users

[Q] Nexus 4 Radio - No 3G/HSPA Signal

I've not had a 3G/HSPA signal on my N4 for a while now. Trouble is I don't know exactly when it happened as I'm generally on either WiFi at home or at work, where I know I can only get Edge.
I've tried the usual check the APN, *#*#4636#*#* and nothing's jumping out at me (if I tell it to use WCDMA only I get no signal at all).
I'm wondering if it was the 4.2.2 udpate and wonder if I've got the wrong radio - so the question is does anyone know what radio I should have on my N4? I'm in the UK on Vodafone, but I got the phone from the Play Store.
I've tried searching but the N4 seems to have had so many signal issues it's difficult to sift out the relevant stuff
I'm not rooted but I'm happy to do it if needed. Already tried a factory reset so nothing to lose!
Cheers,
Dave

have you tried a different sim card? thete isnt a specific radio per region, so thats not a problem.

simms22 said:
have you tried a different sim card? thete isnt a specific radio per region, so thats not a problem.
Click to expand...
Click to collapse
Yeah, sorry, forgot to say. I tried the wife's SIM (different operator) and same issue, only got a 2G signal.
I was thinking it might have been an issue when they updated it to remove the LTE "feature"

Even i have the same problem . I am from India and also have tried a couple of sim card . Im not able to get 3g signal at all . Anyone pls help....

i have the same issue solved whit RMA my first nexus 4 was defective, my new nexus 4 changed in warranty now works well
3G/HSPA networks

participles ipntsly
I started having the same issue today in Atlanta. Had another T-Mobile HSPA phone sitting next to mine with 4 bars while I was on Edge. My N4 is < 1 week old and seemed to be OK but now I can't get it on anything other than Edge.
I've checked my APN settings, reset the radio, turned data on/off and reset the phone with no luck.
Any advice?

Update: Just got mine working, here is what I did.
Wasted 20 mins talking to Google and T-Mobile. (I don't recommend this step.)
Type in *#*#4636#*#*
Scroll down and change 'WCDMA Preferred' to 'WCDMA Only'. At this point my bars switched from Edge to HSPA.
Now, undo the change and put it back on WCDMA Preferred. Make sure it still has a 3G or an H next to your bars.
Exit and enjoy the fast phone.

gtgeek said:
Update: Just got mine working, here is what I did.
Wasted 20 mins talking to Google and T-Mobile. (I don't recommend this step.)
Type in *#*#4636#*#*
Scroll down and change 'WCDMA Preferred' to 'WCDMA Only'. At this point my bars switched from Edge to HSPA.
Now, undo the change and put it back on WCDMA Preferred. Make sure it still has a 3G or an H next to your bars.
Exit and enjoy the fast phone.
Click to expand...
Click to collapse
This worked for me.. thanks

I am having the exact same problem as Dave. My n4 has just stopped connecting to WCDMA (H).
I have tried re entering my APN's, Turning on/off mobile network, Airplane mode, rebooting and removing the SIM. From the test menu I have tried WCDMA only but I lose my signal completely and go to emergency calls only. If I use either GSM only or WCDMA preferred I can get a 2G connection but nothing more and when on WCDMA preferred it can lose connection completely as well.
I am also with Vodafone UK.

solution for this
Guys....even I had the same problem.....but was able to solve it.....
Go to settings >apps>all >Google framework services in this disable it and clear data and again enable it....
Enjoy 3g once again ....it worked for me

caka said:
Guys....even I had the same problem.....but was able to solve it.....
Go to settings >apps>all >Google framework services in this disable it and clear data and again enable it....
Enjoy 3g once again ....it worked for me
Click to expand...
Click to collapse
Thank you! A few seconds after doing this my N4 connected to 3G!

I have tried what solutions were posted here but everytime I switch from 2G to 3G in the menu I lose signal on my phone..

gtgeek said:
Update: Just got mine working, here is what I did.
Wasted 20 mins talking to Google and T-Mobile. (I don't recommend this step.)
Type in *#*#4636#*#*
Scroll down and change 'WCDMA Preferred' to 'WCDMA Only'. At this point my bars switched from Edge to HSPA.
Now, undo the change and put it back on WCDMA Preferred. Make sure it still has a 3G or an H next to your bars.
Exit and enjoy the fast phone.
Click to expand...
Click to collapse
I tried this as soon as I put WCDMA preferred I lose signal, I have tried doing this in several locations as I live in the country, tried at my school where my friends get H+ and I still lose connection. tried going back to stock still the same issue

Can someone fixed this problem? "WCDMA only" mode make my N4 lost signal.
Sent from my Nexus 4 using XDA Premium 4 mobile app

Getting bars on 'GSM only'
I have got the same issue on my Nexus 4, and I still don't understand how it happened in the first place. I updated a bunch of apps before going to bed and remember waking up to no signals on my phone.
Currently I only receive signal when I go *#*#4636#*#* and set it to 'GSM only'. Any other configuration (WCDMA preferred, WCDMA only, etc) results in loss of signal.
I have tried the following with no luck:
1) Restored Factory Settings
2) Installed an older version of android
3) Flashed multiple radios
4) Steps listed on this thread
Can anyone help me out with this?
Thanks

OnePlus Two - HSPA+ and 3G Data Connection Problem

Hi Everyone,
I'm usually just a reader on XDA, but I have found a problem that appears not to have been solved and wondered if anyone had any insight.
Problem Summary
When in an area (or network) with only HSPA and UMTS (strong HSPA/UMTS signal, but with no LTE or 2G available), the phone will drop from H+ to 3G erratically, always dropping the data connection. Traditional phone calls are not affected.
Detailed Description
I have a OnePlus Two and have 2 SIM cards. My first SIM Card is with Bell Canada (Virgin), and the second SIM Card is with WIND Mobile Canada.
Neither Bell nor WIND operate a 2G network, so the lowest the service can fall to is UMTS/3G.
Initially, I didn't notice the problem because Bell also operates an LTE network, and there is no problem with dropping the data connections when on LTE.
When I switched to the WIND SIM card (which only operates HSPA and UMTS), I noticed a problem where the phone would initially connect to H+, begin downloading whatever is needed (say, streaming music), but then part way through the download, the connection would switch to 3G, and the data would effectively stop. Within a minute, the service would jump back to H+ and download some more, but this cycle would continue (H+ --> 3G --> H+ --> 3G... ), with no way of knowing 1) how long the H+ connection would last before dropping to 3G (usually less than 30 seconds), and 2) after dropping to 3G, how long before going back to H+. This problem makes the phone almost useless when there is no LTE.
The most obvious troubleshooting I did was move to locations of better signal but I quickly ruled that out, as nothing seems to remove this problem. Other things I tried was to: move locations in the city, reboot phone, hard reset phone, flash most updated version of Oxygen, unlock bootloader, root, try the HSPA Keepalive app, swap SIM1 to SIM2, and many other things.
I originally thought this was a network issue, but I put this WIND SIM in another phone and there was no problem in any way that resembled this problem.
I also ruled out this being a network-specific problem, as I have taken a trip with the Bell SIM to an area where Bell does not have any LTE coverage (only HSPA and UMTS) and the same problem occurs on Bell as with the WIND SIM.
I have found people who had this problem on the OnePlus One tend to recommend using 2G to stabilize the connection, but this is not possible on Bell or WIND. That solution also would not provide adequate data speeds.
Remember this problem only affects data connectivity, as 3G traditional phone calls have no problems.
Question
Does anyone know if there is a way to adjust the conditions when the OnePlus Two will choose to switch from H+ to 3G?
Does anyone have any easier suggestions?
Thank you all in advance, because this rendering this phone almost useless when there is no LTE coverage.

I believe your problem is that phone it's dualsim standby, that means only one modem that alternates signal for both sims, I think normal would be alternating from faster network to slower network on sim without data.
Having to change to g3 between sims theres something stoped in the modem and data connection is also stopped.
You have no problem with voice calls because other sim is automatically turned off and unreachable.
There's nothing you can do if you're forced to only 3g on both sims
By 3g I mean 3g or h+ which to my knowledge are the same
Hope I was helpful and not wrong or more confusing
Sent from my ONE A2005 using Tapatalk

fburgos said:
I believe your problem is that phone it's dualsim standby, that means only one modem that alternates signal for both sims, I think normal would be alternating from faster network to slower network on sim without data.
Having to change to g3 between sims theres something stoped in the modem and data connection is also stopped.
You have no problem with voice calls because other sim is automatically turned off and unreachable.
There's nothing you can do if you're forced to only 3g on both sims
By 3g I mean 3g or h+ which to my knowledge are the same
Hope I was helpful and not wrong or more confusing
Sent from my ONE A2005 using Tapatalk
Click to expand...
Click to collapse
Thanks, I will try disabling the second SIM to see if there is a bug with the dual-sim...
What it currently does with the second SIM is it either shows "R" for roaming or just emergency only, but perhaps there is a software issue so I'll see if disabling the second SIM makes a difference.

biomedeng said:
Thanks, I will try disabling the second SIM to see if there is a bug with the dual-sim...
What it currently does with the second SIM is it either shows "R" for roaming or just emergency only, but perhaps there is a software issue so I'll see if disabling the second SIM makes a difference.
Click to expand...
Click to collapse
Though strange, this workaround fixes the issue. Thank you to fburgos for the suggestion!
So just in case anyone ever finds this issue creeps up on them, the solution is to DISABLE the SIM you are not using. It's not the most convenient workaround to swap SIMs, but the other SIM will be in Emergency Mode, so it really makes no functional difference.
On the technical side, it does appear that there is actually a bug in Android for a very uncommon network configuration. It will only appear in this exact configuration:
SIM1: Network has HSPA/3G only, no LTE or 2G to move to
SIM2: Network also only has HSPA/3G with no LTE or 2G
The non-data SIM does NOT connect to a roaming network (connects with "Emergency Only") - if it connects to a roaming 2G network, this problem does not happen.
The data SIM connects to HSPA/3G
Both SIMs are active
I'm not sure if this will happen anywhere else in the world other than having a WIND Mobile Canada SIM and Bell or TELUS Canada SIM
If anyone has insight on how to report this to Google, or someone else who can confirm my theory, that would be great!

Try this:
1. You need to make sure you have the correct LTE APN selected in mobile networks and LTE as preferred type.
2. Go to dialer and type in this: *#*#4636#*#*
3. Phone Information
4. Set Preferred Network Type to: LTE/GSM (PRL) - you an play with which one you wanna use but the one I said works for sure. on other roms I have" TD-SCDMA, GSM/WCDMA and LTE"
5. Now click TURN OFF RADIO and wait WAIT few secs. will that button turns to Turn Radio ON
6. Now TURN ON RADIO and wait
7. when u see the triangle for the signal is back, at least black , go down and lick SMSC REFRESH then UPDATE.
8. now just go back to APN settings and go into your LTE APN
9. Change Bearer to LTE

biomedeng said:
Hi Everyone,
I'm usually just a reader on XDA, but I have found a problem that appears not to have been solved and wondered if anyone had any insight.
Problem Summary
When in an area (or network) with only HSPA and UMTS (strong HSPA/UMTS signal, but with no LTE or 2G available), the phone will drop from H+ to 3G erratically, always dropping the data connection. Traditional phone calls are not affected.
Detailed Description
I have a OnePlus Two and have 2 SIM cards. My first SIM Card is with Bell Canada (Virgin), and the second SIM Card is with WIND Mobile Canada.
Neither Bell nor WIND operate a 2G network, so the lowest the service can fall to is UMTS/3G.
Initially, I didn't notice the problem because Bell also operates an LTE network, and there is no problem with dropping the data connections when on LTE.
When I switched to the WIND SIM card (which only operates HSPA and UMTS), I noticed a problem where the phone would initially connect to H+, begin downloading whatever is needed (say, streaming music), but then part way through the download, the connection would switch to 3G, and the data would effectively stop. Within a minute, the service would jump back to H+ and download some more, but this cycle would continue (H+ --> 3G --> H+ --> 3G... ), with no way of knowing 1) how long the H+ connection would last before dropping to 3G (usually less than 30 seconds), and 2) after dropping to 3G, how long before going back to H+. This problem makes the phone almost useless when there is no LTE.
The most obvious troubleshooting I did was move to locations of better signal but I quickly ruled that out, as nothing seems to remove this problem. Other things I tried was to: move locations in the city, reboot phone, hard reset phone, flash most updated version of Oxygen, unlock bootloader, root, try the HSPA Keepalive app, swap SIM1 to SIM2, and many other things.
I originally thought this was a network issue, but I put this WIND SIM in another phone and there was no problem in any way that resembled this problem.
I also ruled out this being a network-specific problem, as I have taken a trip with the Bell SIM to an area where Bell does not have any LTE coverage (only HSPA and UMTS) and the same problem occurs on Bell as with the WIND SIM.
I have found people who had this problem on the OnePlus One tend to recommend using 2G to stabilize the connection, but this is not possible on Bell or WIND. That solution also would not provide adequate data speeds.
Remember this problem only affects data connectivity, as 3G traditional phone calls have no problems.
Question
Does anyone know if there is a way to adjust the conditions when the OnePlus Two will choose to switch from H+ to 3G?
Does anyone have any easier suggestions?
Thank you all in advance, because this rendering this phone almost useless when there is no LTE coverage.
Click to expand...
Click to collapse
I have the same problem. Do you already have solved it?
I use only one SIM card so it is not a problem two cards.

really you do not have this problem? if no one knows the solution?

compared with my htc butterfly 2 and another low-end android, one plus 2 running latest Oxygen OS has serious connectivity issues. I compared the signals strength using same sim card in same location (including being connected to the same tower) and One Plus 2 keeps dropping the connection and has really poor signal strength. I have tried the *#*#4636#*#* and tried different network modes, but none of them are helping. Its a real disappointment that the basic feature of this phone is screwed up.
I have tried with CM13 as well. Any ideas if this is a modem version issue?

odeccacccp said:
Try this:
1. You need to make sure you have the correct LTE APN selected in mobile networks and LTE as preferred type.
2. Go to dialer and type in this: *#*#4636#*#*
3. Phone Information
4. Set Preferred Network Type to: LTE/GSM (PRL) - you an play with which one you wanna use but the one I said works for sure. on other roms I have" TD-SCDMA, GSM/WCDMA and LTE"
5. Now click TURN OFF RADIO and wait WAIT few secs. will that button turns to Turn Radio ON
6. Now TURN ON RADIO and wait
7. when u see the triangle for the signal is back, at least black , go down and lick SMSC REFRESH then UPDATE.
8. now just go back to APN settings and go into your LTE APN
9. Change Bearer to LTE
Click to expand...
Click to collapse
Did It.. But it seems like it didn't solve my problem..

LTE does not work anymore (G600K)

Hi All,
I bought this LG G6 (G600K) from HK a month ago. It was working perfectly until few days ago when the LTE stopped working. In the notification bar I can see LTE, but there is no data going through. E.g.: messenger shows "Connecting...". Basically no 4G internet any more. So I did my research and these are my findings:
If there is no LTE coverage, the phone switches to 3g and it works - so the problem is only with LTE, but LTE is everywhere nowdays
In this Korea Telecom ROM there is no way to configure to only use 3g (CDMA only), not even in hidden menu - this could be a remedy, but would not solve the issue
Wifi also works
I did Factory Reset twice (also Network settings reset), did not help
I waited for an update from KT, maybe contains a fix, but did not help
I went to my operator (TELENOR Hungary), and they have checked my subscription, and they said everything is ok, but they can see that my phone does not connect to the LTE system.
I tried my SIM in an other phone, and LTE works perfectly
So based on these facts, I can't think of other than the phone has a hardware issue. Do you have any idea how can I investigate further?
Thanks for any suggestion.

pepejazz said:
Hi All,
I bought this LG G6 (G600K) from HK a month ago. It was working perfectly until few days ago when the LTE stopped working. In the notification bar I can see LTE, but there is no data going through. E.g.: messenger shows "Connecting...". Basically no 4G internet any more. So I did my research and these are my findings:
If there is no LTE coverage, the phone switches to 3g and it works - so the problem is only with LTE, but LTE is everywhere nowdays
In this Korea Telecom ROM there is no way to configure to only use 3g (CDMA only), not even in hidden menu - this could be a remedy, but would not solve the issue
Wifi also works
I did Factory Reset twice (also Network settings reset), did not help
I waited for an update from KT, maybe contains a fix, but did not help
I went to my operator (TELENOR Hungary), and they have checked my subscription, and they said everything is ok, but they can see that my phone does not connect to the LTE system.
I tried my SIM in an other phone, and LTE works perfectly
So based on these facts, I can't think of other than the phone has a hardware issue. Do you have any idea how can I investigate further?
Thanks for any suggestion.
Click to expand...
Click to collapse
Have you made sure data roaming is turned on as you have Korean model, I had to enable data roaming to get mobile data as the device thinks that's exactly what it's doing.
Sent from my LG-H870 using Tapatalk

nookcoloruser said:
Have you made sure data roaming is turned on as you have Korean model, I had to enable data roaming to get mobile data as the device thinks that's exactly what it's doing.
Click to expand...
Click to collapse
Unfortunately it is grayed out. But 3g works and 4g worked before. I have not changed any settings, just went away.

---------- Post added at 09:11 AM ---------- Previous post was at 09:06 AM ----------
[/COLOR]
pepejazz said:
Unfortunately it is grayed out. But 3g works and 4g worked before. I have not changed any settings, just went away.
Click to expand...
Click to collapse
Did you fix the problem yet?? I also have same situation like you.........

Hi, sorry to hear. I could not solve yet. I went to the 3rd line support of the operator, but they say everything is fine from their side. So I'm waiting for a custom ROM, or I will change my operator. If you can, send back your phone.

pepejazz said:
Hi, sorry to hear. I could not solve yet. I went to the 3rd line support of the operator, but they say everything is fine from their side. So I'm waiting for a custom ROM, or I will change my operator. If you can, send back your phone.
Click to expand...
Click to collapse
Well i just found temporary fix for grayed out data roaming..this method worked to me
download quickshortcutmaker from playstore open app and switch to normal search find roaming click on roaming - global roaming - create... you can enable data roaming from there..
And for manual network switch LTE /3G : quickshortcutmaker - normal view - network -networksettings global
Hope that helps
Sorry for my bad English..

Wow, thanks. This is working as a remedy. You are the hero of the day

Found the solution !
Google Search : how to fix 3g/4g high on android
(can't put a link since this is my first comment)
Its something related to APN . I've tried it and it works .
Hope this helps . Cheers

Any way to get 4G/LTE, Please Help!

Hi everyone. I have a Leeco Pro 3 X727. I am on Firmware 20s I am having issues to get 4G/LTE signal.
First thing, In my City there is 4G signal, even a couple a days ago I went to my carrier and change my Sim for the newset, just in case.
The last Rom where I had LTE signal IICR was AEX5.4 around May's days. After I changed to CDroid, then to DotsOS... Whatever all I can get its H+ signal. Couple a days ago I change to Carbon Rom 6.1 (Oreos) and the first install, in the configuration I get LTE, but after change to Wifi for finish install all apps, I cant get LTE again. I flashed back Dots, Cdroid and I am now and AEX5.7 and I I have the same issue, just 3G/H+, not LTE or 4G. Also, after flashing firmware 20S I get LTE signal for a While so I think that is not the problem...
I tried almost all APN setting and Nothing. Chang Rom, change Recovery, change Kernel... Nothing just 3g/H+.... My friends with same Carrier have LTE signal...
So, is there anything I can do...? Flash any app, setting?
Help please.

kukuteku said:
Hi everyone. I have a Leeco Pro 3 X727. I am on Firmware 20s I am having issues to get 4G/LTE signal.
First thing, In my City there is 4G signal, even a couple a days ago I went to my carrier and change my Sim for the newset, just in case.
The last Rom where I had LTE signal IICR was AEX5.4 around May's days. After I changed to CDroid, then to DotsOS... Whatever all I can get its H+ signal. Couple a days ago I change to Carbon Rom 6.1 (Oreos) and the first install, in the configuration I get LTE, but after change to Wifi for finish install all apps, I cant get LTE again. I flashed back Dots, Cdroid and I am now and AEX5.7 and I I have the same issue, just 3G/H+, not LTE or 4G. Also, after flashing firmware 20S I get LTE signal for a While so I think that is not the problem...
I tried almost all APN setting and Nothing. Chang Rom, change Recovery, change Kernel... Nothing just 3g/H+.... My friends with same Carrier have LTE signal...
So, is there anything I can do...? Flash any app, setting?
Help please.
Click to expand...
Click to collapse
Only use the X7272 5.8.20s firmware - Then you should be able to get it with the correct APN and setting
Don't choose Global, you want the LTE/GSM/UMTS/CDMA setting. If you are still having issues, use the program LTE Discovery or Network Guru.
There are Magsisk

What network are you trying to connect to? What country are you in?

Go to Settings -> Backup & reset -> Network settings reset -> RESET SETTINGS

xBane_ said:
What network are you trying to connect to? What country are you in?
Click to expand...
Click to collapse
Dominican Republic.
Orange / Altice

tsongming said:
Only use the X7272 5.8.20s firmware - Then you should be able to get it with the correct APN and setting
Don't choose Global, you want the LTE/GSM/UMTS/CDMA setting. If you are still having issues, use the program LTE Discovery or Network Guru.
There are Magsisk
Click to expand...
Click to collapse
I am Root.
None works.

fivefour said:
Go to Settings -> Backup & reset -> Network settings reset -> RESET SETTINGS
Click to expand...
Click to collapse
Nothing. Still "Orange 3G" and conexión icon show H+.

Honestly, I'd say something is wrong with your phone or wrong with your cell towers. The only LTE Band that Orange/Altice supports in DR is B3 (sorta strange that there's only one band, but for a relatively small country I suppose it doesn't matter) and the LEX727 and LEX720 both have band 3, as well as the only GSM(3g)/UMTS(4g) bands that Orange/Altice supports (that being GSM:1800/1900 and UMTS B8 (900GSM)) At first my assumption was that Orange/Altice was a CDMA network, but as far as I can see, there are no CDMA networks in DR!
Edit: download the speedtest app, and see if you're getting the same speeds as a phone that shows it's connected to LTE. If you are, there's no issue besides the phone reporting the connection wrong. If you're slower, though...

xBane_ said:
Honestly, I'd say something is wrong with your phone or wrong with your cell towers. The only LTE Band that Orange/Altice supports in DR is B3 (sorta strange that there's only one band, but for a relatively small country I suppose it doesn't matter) and the LEX727 and LEX720 both have band 3, as well as the only GSM(3g)/UMTS(4g) bands that Orange/Altice supports (that being GSM:1800/1900 and UMTS B8 (900GSM)) At first my assumption was that Orange/Altice was a CDMA network, but as far as I can see, there are no CDMA networks in DR!
Edit: download the speedtest app, and see if you're getting the same speeds as a phone that shows it's connected to LTE. If you are, there's no issue besides the phone reporting the connection wrong. If you're slower, though...
Click to expand...
Click to collapse
Maybe the problem is Orange Altice. The 4G coverage its very new in my city. I al ready tested speed and its 3G 5mb/3mb
Thanks for answering!

kukuteku said:
Maybe the problem is Orange Altice. The 4G coverage its very new in my city. I al ready tested speed and its 3G 5mb/3mb
Thanks for answering!
Click to expand...
Click to collapse
Oh! I think I know the issue! When I looked at Orange's website (trying to find network specs, which strangely for a network that supports BYOD, they don't have listed, or at least I couldn't find it) I saw that they have subscribers pay for data, as is standard practice in the US (where I live). But the thing that caught my eye is that you also pay for speed.
So... Let me take a guess here. You pay either RD$1499 Or RD$1349 for their 5mbps unlimited plan?
Basically, my assumption is that if you're paying for one of their lower speed tiers, they put you on a 4g or 3g network to save LTE bandwidth for the people who pay more than you.
Tell me if any of this sounds familiar... I feel like I may've found your problem!

xBane_ said:
Oh! I think I know the issue! When I looked at Orange's website (trying to find network specs, which strangely for a network that supports BYOD, they don't have listed, or at least I couldn't find it) I saw that they have subscribers pay for data, as is standard practice in the US (where I live). But the thing that caught my eye is that you also pay for speed.
So... Let me take a guess here. You pay either RD$1499 Or RD$1349 for their 5mbps unlimited plan?
Basically, my assumption is that if you're paying for one of their lower speed tiers, they put you on a 4g or 3g network to save LTE bandwidth for the people who pay more than you.
Tell me if any of this sounds familiar... I feel like I may've found your problem!
Click to expand...
Click to collapse
Mmmmm suspect ... actually I have an even lower plan, RD $ 580 (USD$12) and I only use the data when I buy additional packages ... Most times I use Wi-Fi and just use Data when I am not at home/job and the 3G its veeeery looooow speed... Thank bro, that could be the problem.

Solution for Signal Problem

Problem background: I was having problems when phone was getting stuck at WCDMA (found out using network cell info app), losing sms and calls function, and not switching to other network types, requiring a restart or a toggle of the 2nd sim to off and on (I had my sim 2 off most of the time).
Solution: enter *#*#4636#*#* in the phone dialer, phone information, set preferred network type, NR/LTE/TDSCDMA/GSM.
Phone will not connect to WCDMA but for me, this is the better option since LTE signals are stronger in my area.
One benefit was also an improvement to my battery life, I guess because phone will not search for the weaker WCDMA signal anymore.
I hope you find this useful and you also resolve your problem.

rjaygalvez said:
Problem background: I was having problems when phone was getting stuck at WCDMA (found out using network cell info app), losing sms and calls function, and not switching to other network types, requiring a restart or a toggle of the 2nd sim to off and on (I had my sim 2 off most of the time).
Solution: enter *#*#4636#*#* in the phone dialer, phone information, set preferred network type, NR/LTE/TDSCDMA/GSM.
Phone will not connect to WCDMA but for me, this is the better option since LTE signals are stronger in my area.
One benefit was also an improvement to my battery life, I guess because phone will not search for the weaker WCDMA signal anymore.
I hope you find this useful and you also resolve your indigocard problem.
Click to expand...
Click to collapse
Sounds to be connectivity. They should have gave you a new sim, unplug modem, repulug modem. Clear cache, reset phone, this looks for best tower signal. Make sure your on the latest update. These are basic troubleshooting. If nothing call one plus technical support number. They will ask if you've done these steps. They talk you through More steps. Get it fixed!! Do not Hard reset unless instructed to. Get back.

Hodges59 said:
Sounds to be connectivity. They should have gave you a new sim, unplug modem, repulug modem. Clear cache, reset phone, this looks for best tower signal. Make sure your on the latest update. These are basic troubleshooting. If nothing call one plus technical support number. They will ask if you've done these steps. They talk you through More steps. Get it fixed!! Do not Hard reset unless instructed to. Get back.
Click to expand...
Click to collapse
Pretty sure this is not a sim or network problem. used the same sim on an iphone and samsung and never had this issue.

I had signal issues a found turning off smart 5g in settings yielded better LTE and 5g connection there is a reddit post about it even maybe try it if you haven't already worked for me and my device is 8t global on T-Mobile by the way.

eddro22 said:
I had signal issues a found turning off smart 5g in settings yielded better LTE and 5g connection there is a reddit post about it even maybe try it if you haven't already worked for me and my device is 8t global on T-Mobile by the way.
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Tried this also before but still experienced network getting stuck to hspa+