If you use a OnePlus device specifically a OnePlus 3/3T then there's a really high probability that you've been effected by the unstable network problems(Data network automatically switching to 2G or 3G when the 4G signal becomes a little weak even though the device is capable of receiving the signal) caused when the signal strength is very poor. Even if you select 4G/3G only in the settings the signal becomes 2G.
If you are getting affected by this issue then you can solve this just by installing an app from the play store.
STEPS-
1. Install the app " JOnePlus Tools".
2. Open it and then click on "More Settings" icon on the top right corner.
3. After that click on phone info.
4. In phone info select drop down menu and choose the option, "LTE only" or " WCDMA only" according to your need.
5. Done.
I've been testing it for a few hours now and and haven't faced the issue.
If you are still not able to understand what to do then watch this video, everything done step by step.
Yeah you can temporarily solve this problem with this guide but,
-If your carrier doesnt support VoLTE, your phone can not drop to HSPA/2G when you select LTE only mode and you can't make and receive calls.
-It is known that LTE signal is weaker then 2/3G signal and old technologies have better coverage in some areas unfortunately. In that areas you may not to receive any signal.
Anyway, thanks for guide.
I absolutely agree with you about problem. Phone drops suddenly 3G from LTE for no reason and reception is weaker than most new phones. But unfortunately we have no good/permanent solucion.
Makes you wonder what 1+ did as this is only an issue with their stock roms and roms based on their roms. AOSP based roms dont suffer from this.
qhsusb_bulk said:
Yeah you can temporarily solve this problem with this guide but,
-If your carrier doesnt support VoLTE, your phone can not drop to HSPA/2G when you select LTE only mode and you can't make and receive calls.
-It is known that LTE signal is weaker then 2/3G signal and old technologies have better coverage in some areas unfortunately. In that areas you may not to receive any signal.
Anyway, thanks for guide.
I absolutely agree with you about problem. Phone drops suddenly 3G from LTE for no reason and reception is weaker than most new phones. But unfortunately we have no good/permanent solucion.
Click to expand...
Click to collapse
Thank you for that information
zelendel said:
Makes you wonder what 1+ did as this is only an issue with their stock roms and roms based on their roms. AOSP based roms dont suffer from this.
Click to expand...
Click to collapse
OOS has signal spoofing in it, i.e it shows a good signal even when the reception is very weak.
Hi
This can be done by dialing the code *#*#4636#*#* >phone info. No need to install a separate app for it
Related
Hello,
My I9000 has a peculiar problem: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.)
This problem has first appeared rather spontaneously when it was running its stock 2.1 firmware and has persisted through upgrades to stock 2.3 and CyanogenMod 10 through 11. I've attempted to switch modem firmware to mitigate it to no avail. (Modems XXJVT and ZFJPG/BVJJPG were tried, no difference was noticed - I am rather wary of messing with modems further, as this is my only phone and I'd rather it still could call at the end of the day.)
Moreover, if network mode is switched to GPRS/EDGE manually, it can't be switched back to 3G (either manually or automatically) without a reboot. (The 'set preferred network type' field in *#*#4636#*#* starts resetting itself to 'Unknown' spontaneously at this point.)
Unfortunately, I don't know many details of the incident that caused the appearance of the problem, as I was not the owner of the phone at the time - I only know that it was roaming nationally (within the same country) at the time. (The network type should have been the same, and it's not like it's stuck in roaming in any way.)
Has anybody encountered such a problem before? Is this likely to be a hardware problem, or could there be a software fix?
Thank you in advance for your thoughts.
[Zaba] said:
: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.) .
Click to expand...
Click to collapse
you need to try fiddling with its network settings (read this for info only) you can use service codes on i9000 to set your network settings . Sometimes it may be due to network settings not set to Auto and set to preferred and at other times it could be antenna connection inside the phone having poor contacts.
Check this out! Links to useful Guides and " Banned " Documentaries
Thank you for the hint. I have tried setting the "Select radio band" setting in *#*#4636#*#* > Phone information to European bands manually, and this appears to have mitigated the problem at least partly (phone has switched to 2G and back a few times during the day). I've noticed that it would sometimes just turn mobile data off despite having a good signal, not sure if this is related. It also sometimes seems to prefer another operator's 3G network to its own 2G ("emergency calls only", network mode is UMTS/HSDPA), but this is only guesswork since I have no way to actually confirm that the areas where this occurs have 2G coverage (it just seems really unlikely that they wouldn't). Maybe the fact preferred network type is "WCDMA preferred" factors into this.
TL;DR: Forcing radio bands seems to have helped, other radio weirdnesses remain but aren't nearly as bad.
I saw a few screenshots of people's Moto X's from sprint with a bunch of options under Network Mode. I have the XT1053 (TMO unlocked, on ATT network) and the only options I see are "Auto" and "2G."
I browsed around and found that there's an LTE OnOff app, but I'm just wondering if there's a way I can get those options for 3G on my device's Network Mode option list?
The reason why I even care is because for some reason at my workplace, I can't seem to get any data through LTE. My signal will display 3 bars of LTE, but it absolutely does not work. While it will turn off LTE and just say 4G since it's on auto, I find that a majority of my day, it WON'T switch. It stays on 4G LTE 99% of the time and does not function at all. When I walk outside the building, LTE works perfectly fine. Would I be right to assume that the auto mode is literally on borderline between switching, so it never establishes a stable connection?
I guess it brings me to the question, is the Auto mode inefficient / will I have to live with manually turning off LTE every time I get to work? :/
noc215 said:
I saw a few screenshots of people's Moto X's from sprint with a bunch of options under Network Mode. I have the XT1053 (TMO unlocked, on ATT network) and the only options I see are "Auto" and "2G."
I browsed around and found that there's an LTE OnOff app, but I'm just wondering if there's a way I can get those options for 3G on my device's Network Mode option list?
The reason why I even care is because for some reason at my workplace, I can't seem to get any data through LTE. My signal will display 3 bars of LTE, but it absolutely does not work. While it will turn off LTE and just say 4G since it's on auto, I find that a majority of my day, it WON'T switch. It stays on 4G LTE 99% of the time and does not function at all. When I walk outside the building, LTE works perfectly fine. Would I be right to assume that the auto mode is literally on borderline between switching, so it never establishes a stable connection?
I guess it brings me to the question, is the Auto mode inefficient / will I have to live with manually turning off LTE every time I get to work? :/
Click to expand...
Click to collapse
3 bars of LTE is an excellent signal. With 1 bar of signal I can still get 15mbps down from my provider. If your phone is detecting such a strong received signal it won't be switching back to HSPA on its own. For some reason the building you're in may block the phones transmitted signal more then it blocks the signal from the cell site. I am guessing you're on band 4 LTE which has quite the frequency difference between uplink and downlink. Your only option(assuming the phone or cell site isn't defective) is to manually switch to WCDMA with a third party app such as the "LTE setting" app in the Play store. Or unlock your bootloader and flash firmware from another provider that has more options. I know the Rogers Canada firmware has an LTE on/off option, it also has a 2G only option. Sadly Rogers has not yet approved the release of 4.4 (kitkat).
Steve-x said:
3 bars of LTE is an excellent signal. With 1 bar of signal I can still get 15mbps down from my provider. If your phone is detecting such a strong received signal it won't be switching back to HSPA on its own. For some reason the building you're in may block the phones transmitted signal more then it blocks the signal from the cell site. I am guessing you're on band 4 LTE which has quite the frequency difference between uplink and downlink. Your only option(assuming the phone or cell site isn't defective) is to manually switch to WCDMA with a third party app such as the "LTE setting" app in the Play store. Or unlock your bootloader and flash firmware from another provider that has more options. I know the Rogers Canada firmware has an LTE on/off option, it also has a 2G only option. Sadly Rogers has not yet approved the release of 4.4 (kitkat).
Click to expand...
Click to collapse
That makes a lot more sense to me now. So basically the "Auto" mode only considers my reception and not transmittance strength, so it never saw a need to switch me off LTE. I am almost sure it is not my phone because I started experiencing a signal loss issue with my S3 a few days ago. I doubt it's the cell site because as soon as I step out of the building, LTE works with no problems.
I did ended up using LTE OnOff to force CDMA and I can actually do stuff now. I went and did a speedtest ...
Ping: 114 ms
Down: 4.06 Mbps
Up: 0.77 Mbps
I guess with the lack of options, I have yet another reason to roll up the sleeves and get my hands dirty. Haven't touched ABD since I had a samsung captivate!
Thank you
[Q] Cell reception indicator constantly flips between "no reception" display and bars
I'm using the Xperia Z3 Compact on TMobile's network in the US.
About 1/4 of the time when I turn on the display the phone indicates that it has no cell reception:
1) The phone shows no bars of reception, and a red X over the bars
2) The lock screen reads "Emergency calls only"
However, within a second or two the phone appears to acquire an excellent signal and I get a full 3-4 bar display. All of the areas in which I use the phone are marked as "Excellent" on TMobile's coverage maps.
This also happens intermittently while I'm using the phone. I'm not sure if it's actually losing the signal or if it's just a software issue. I've never had it drop a call or cut out while I'm talking.
I'm getting only acceptable battery life from the phone (about 25% at the end of the day) despite light usage and conservative app installation, even though this phone has a reputation for excellent battery life. My theory is that this might have to do with the phone constantly disconnecting from the network and then having to re-aquire a signal.
Anyone else had this experience with the Z3C?
Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps
sh0nuff said:
Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps
Click to expand...
Click to collapse
Thanks! Really gratifying to know that it's not just my device. Seems like there's a strong possibility this is the issue since I'm on a MVNO that's only been on this LTE network a few months. I've flipped the device into GSM only mode and we'll see if it helps.
Dumb question how do i flip it into gsm?
qylie said:
Dumb question how do i flip it into gsm?
Click to expand...
Click to collapse
Settings>More>Mobile Networks>Preferred Connection type> GSM only
Sent from my D5803 using XDA Free mobile app
Thanks!!!
I'm having the same issue as you have described. For now I've set the phone to 3G prefered. Looks instantly better. Signal strength is also better.
Provider: Simyo (KPN network) - The Netherlands
Edit - Issue solved:
I switched from the Lollipop Baltic ROM to the Lollipop KPN carrier ROM for The Netherlands. The switching is gone for me. Battery life drastically went up.
Any update on this? I just started experiencing this issue out of no where about 2 weeks ago. I'm not rooted or anything, can't afford to due to job security requirements and such.
One of the great things about this device on Verizon's network is instant LTE service. In my house I have dead areas which cause my signal to drop. When trying to get LTE back it can sometimes take 30 seconds or more because once I get to an area with service it will first go to 3G and then sometimes get stuck on it and I'll have to toggle airplane mode to get LTE back in a timely manner. With the OnePlus6T as soon as I have service it goes instantly to LTE! This is the first time I've ever had a device connect to LTE so fast. All my previous devices over the past 5 years since I've had LTE in my area have annoyed me because they always go to 3G first even though I have strong LTE service where I live.
I've always wondered why companies can't make their phones instantly connect to LTE when it's there and why they always favor 3G -- but this is no longer an issue since the OP6T doesn't have 3G on Verizon
imucarmen said:
One of the great things about this device on Verizon's network is instant LTE service. In my house I have dead areas which cause my signal to drop. When trying to get LTE back it can sometimes take 30 seconds or more because once I get to an area with service it will first go to 3G and then sometimes get stuck on it and I'll have to toggle airplane mode to get LTE back in a timely manner. With the OnePlus6T as soon as I have service it goes instantly to LTE! This is the first time I've ever had a device connect to LTE so fast. All my previous devices over the past 5 years since I've had LTE in my area have annoyed me because they always go to 3G first even though I have strong LTE service where I live.
I've always wondered why companies can't make their phones instantly connect to LTE when it's there and why they always favor 3G -- but this is no longer an issue since the OP6T doesn't have 3G on Verizon
Click to expand...
Click to collapse
What now happens in the areas where you only had 3G on your old phone? On your new Oneplus 6T do you just have no signal at all since it is only a LTE phone?
mjnoles1 said:
What now happens in the areas where you only had 3G on your old phone? On your new Oneplus 6T do you just have no signal at all since it is only a LTE phone?
Click to expand...
Click to collapse
Well, I'm assuming that in none LTE areas I'll have no signal at all. But, Verizon's whole network has been converted to LTE as far as I know. I never go anyone where I don't have LTE (and I live in the sticks). But in the off chance that happens I have 2 lines and my Pixel 2XL is still in service.
mjnoles1 said:
What now happens in the areas where you only had 3G on your old phone? On your new Oneplus 6T do you just have no signal at all since it is only a LTE phone?
Click to expand...
Click to collapse
I too am on Verizon, and in my office at work, one of the places I had zero service on Axon 7, I still get calls and text and one spotty bar of LTE. At my house, in the basement bedroom where I have missed countless calls and txts, I have 3 bars of signal and no issues with calls, txts, or LTE.
I drive all around my county for work, and so far, I havent hit a no service area. on the Axon 7, they were evident. It could just be better coverage due to glass back vs metal (the real reason OEMs have switched to glass back imho) or the better modem of the SD 845, but hands down, the cdma-less VZW is far superior for me IRL usage so far.
This is obviously subjective, but despite living in a rural area, I have no need for cdma so far. Vzw is the only carrier with good coverage where i live (upstate SC) and somehow, cdma-less is better.
kitcostantino said:
I too am on Verizon, and in my office at work, one of the places I had zero service on Axon 7, I still get calls and text and one spotty bar of LTE. At my house, in the basement bedroom where I have missed countless calls and txts, I have 3 bars of signal and no issues with calls, txts, or LTE.
I drive all around my county for work, and so far, I havent hit a no service area. on the Axon 7, they were evident. It could just be better coverage due to glass back vs metal (the real reason OEMs have switched to glass back imho) or the better modem of the SD 845, but hands down, the cdma-less VZW is far superior for me IRL usage so far.
This is obviously subjective, but despite living in a rural area, I have no need for cdma so far. Vzw is the only carrier with good coverage where i live (upstate SC) and somehow, cdma-less is better.
Click to expand...
Click to collapse
what network type are you using in the phone information settings??
mpetruzz said:
what network type are you using in the phone information settings??
Click to expand...
Click to collapse
LTE only in *#*#4636#*#*
2g/3g/4g in Preferred Network Type
Yeah I was in a spot Friday that goes to 3g or no signal often. I still had some sort of signal. It had an R and an H on the signal bar I believe. It worked fine and was still pretty fast online. Signal is way better than any of the Pixels was.
When I select LTE only I get two signal icons in the status bar.
Just curious will wifi calling / VOLTE work on Verizon?
rekd0514 said:
Just curious will wifi calling / VOLTE work on Verizon?
Click to expand...
Click to collapse
Volte has worked for me since the moment the tech I chatted with switched my sim to CDMA-less. Case and point, I am in the section of my house with the worst reception, a spot where the Axon 7 I came from got zero service on tmob and Verizon. Yet, much to my heart's content, I have service and VOLTE in the downstairs Faraday cage that is my house.
To the second part, no, Verizon doesn't support wifi calling on this device yet. Hopefully, they will work that out soon, but so far, I am having the best network experience I have had yet with Verizon.
mpetruzz said:
When I select LTE only I get two signal icons in the status bar.
Click to expand...
Click to collapse
Wow, just reset mine and noticed. I guess I had defaulted back to LTE/CDMA/UMTS, which apparently works fine. When I switched to LTE only, you are correct, double LTE icons in the status bar. I don't remember it doing that on 9.0.4. That being said, the other, default setting works perfectly fine for me.
Did y'all not have any problems sending/receiving MMS (not SMS) when your phone was in LTE only mode? I had to manually switch back to the default preferred network type from the dialer menu in order to fix that issue.
I had no problems at all I did the following.
1.Ordered new SIM card
2.Turned off old phone and took out SIM from old phone
3.Went on my Verizon account put in info on BYOD
4. Insert New SIM in 6T
Finish Setting up in your Verizon account then turn on the 6T
Done all working
I was worried because my old phone was 3G but the LTE is everywhere I always have signal.
Hello guys,
I'm using Mi9T Pro with Stock EU rom MIUI 12 version 12.0.4
I have this issue with Xiaomi regarding how the system handles prioritization of Network Band when it comes to using Mobile Data connection.
We know that we have options to prefer 4G, 3G or 2G. But it doesn't define which specific band. Like for example, 4G can be 4G/LTE or 4G+/LTE+. These 2 networks seem to be the same but these actually have different network bands
The question is how does Xiaomi system prioritize which band to select?
Does it prefer the one with higher signal or the one that pings better.
I have this question because as I have experienced, Xiaomi system seem to prefer the one with better signal regardless if it can't even pull any data. In short, it will keep connecting to a network with a better signal strength even if you won't get any internet connection out of it.
I've been noticing this when I set my phone to 4G preferred in my location. When signal indicator turns to 4G/LTE. It may seem to show you that you're connected to the internet but you can't really browse anything because there's actually no data for that band. But when it turns to 4G+, that's when I really get to connect to the internet.
And the biggest problem is that the system prefers to connect to the 4G band. That's why I'd prefer using 3G network because I have a more stable 3G+ signal here.
Another thing that's really disappointing is that my other phone OnePlus 5T handles this well. We share the same APN.
Sadly there's no band selection in *#*#4636#*#*
It would be glad if anyone could provide a better solution to this.
Thank you!
peeweew said:
We know that we have options to prefer 4G, 3G or 2G. But it doesn't define which specific band. Like for example, 4G can be 4G/LTE or 4G+/LTE+. These 2 networks seem to be the same but these actually have different network bands
...
I've been noticing this when I set my phone to 4G preferred in my location. When signal indicator turns to 4G/LTE. It may seem to show you that you're connected to the internet but you can't really browse anything because there's actually no data for that band. But when it turns to 4G+, that's when I really get to connect to the internet. ..
Click to expand...
Click to collapse
4+ g usually means (specially on Xiaomi phones) LTE Advanced Carrier Aggregation where no other/different bands are used but instead the phone is in parallel attached to more than one 4g band. As such, it increases the speed (and maybe, in your case provides a fail-over?!):
https://www.gizbot.com/mobile/featu...ifference-between-4g-4g-explained-053769.html
However, there is another question why (on that place) you have strong 4g signal with no Internet, so that when your phone switches to CA and in parallel attaches to another 4g band (maybe with a weaker signal) it obtains Internet connection over that second band
At least to better understand on which band (at which place and which base station) you have a 4g signal but with no Internet connection, install an app like Network Cell Info Lite, LTE Discovery, Net Monitor Lite). I think with Net Monster (all apps are on Playstore) you can even see on the map where is the base station you are attached to
If your phone is rooted, you could use Network Signal Guru that will show you, in case of 4+g all bands you are aggregated to with their signal strengths, base stations locations, etc (apps above would always show just one, primary band):
https://forum.xda-developers.com/mi-9t/help/monitoring-4g-advanced-aggregated-t4107967
zgfg said:
4+ g usually means (specially on Xiaomi phones) LTE Advanced Carrier Aggregation where no other/different bands are used but instead the phone is in parallel attached to more than one 4g band. As such, it increases the speed (and maybe, in your case provides a fail-over?!):
https://www.gizbot.com/mobile/featu...ifference-between-4g-4g-explained-053769.html
However, there is another question why (on that place) you have strong 4g signal with no Internet, so that when your phone switches to CA and in parallel attaches to another 4g band (maybe with a weaker signal) it obtains Internet connection over that second band
At least to better understand on which band (at which place and which base station) you have a 4g signal but with no Internet connection, install an app like Network Cell Info Lite, LTE Discovery, Net Monitor Lite). I think with Net Monster (all apps are on Playstore) you can even see on the map where is the base station you are attached to
If your phone is rooted, you could use Network Signal Guru that will show you, in case of 4+g all bands you are aggregated to with their signal strengths, base stations locations, etc (apps above would always show just one, primary band):
https://forum.xda-developers.com/mi-9t/help/monitoring-4g-advanced-aggregated-t4107967
Click to expand...
Click to collapse
Ohhh thank you for this explanation.... Someone actually mentioned aggregation to me also. This helps make me clear up how Xiaomi does this and that. Does this mean force selection of network band won't work on Xiaomi devices?
peeweew said:
Ohhh thank you for this explanation.... Someone actually mentioned aggregation to me also. This helps make me clear up how Xiaomi does this and that. Does this mean force selection of network band won't work on Xiaomi devices?
Click to expand...
Click to collapse
I'm pretty sure that with MIUI 11 there was an option to disable/enable 4+, but on MIUI 12 (12.0.2 QFJEUXM) there is no more that option
I don't know of other options (except to prefer 4, 3 or 2 g), specially about selecting bands
choose band mode
peeweew said:
Hello guys,
I'm using Mi9T Pro with Stock EU rom MIUI 12 version 12.0.4
I have this issue with Xiaomi regarding how the system handles prioritization of Network Band when it comes to using Mobile Data connection.
We know that we have options to prefer 4G, 3G or 2G. But it doesn't define which specific band. Like for example, 4G can be 4G/LTE or 4G+/LTE+. These 2 networks seem to be the same but these actually have different network bands
The question is how does Xiaomi system prioritize which band to select?
Does it prefer the one with higher signal or the one that pings better.
I have this question because as I have experienced, Xiaomi system seem to prefer the one with better signal regardless if it can't even pull any data. In short, it will keep connecting to a network with a better signal strength even if you won't get any internet connection out of it.
I've been noticing this when I set my phone to 4G preferred in my location. When signal indicator turns to 4G/LTE. It may seem to show you that you're connected to the internet but you can't really browse anything because there's actually no data for that band. But when it turns to 4G+, that's when I really get to connect to the internet.
And the biggest problem is that the system prefers to connect to the 4G band. That's why I'd prefer using 3G network because I have a more stable 3G+ signal here.
Another thing that's really disappointing is that my other phone OnePlus 5T handles this well. We share the same APN.
Sadly there's no band selection in *#*#4636#*#*
It would be glad if anyone could provide a better solution to this.
Thank you!
Click to expand...
Click to collapse
Download activity launcher (play store), run it
Search band mode ===> Set radio band mode
Choose band mode you need
uncomment said:
Download activity launcher (play store), run it
Search band mode ===> Set radio band mode
Choose band mode you need
Click to expand...
Click to collapse
This is what I was looking for.
Thanks!