Is there a way to fix the lte/3g problem on lineage? - Xiaomi Mi 5 Questions & Answers

Hi, as the title says, I want to know if there's a way to fix the problem with 3g on lineageos. For the people who don't know, It's an issue that makes impossible the swapping between networks, only 4g works. And I'm really pissed off cause I like xosp a lot but since I can't use 3g I will be forced to swap to another rom. Help me if you can, please.

I habe similar problem. My phone clings to LTE even when's there's none. Going manually to airplane mode and back eventually switches to 3g. But not automatically

Kermitsalon said:
I habe similar problem. My phone clings to LTE even when's there's none. Going manually to airplane mode and back eventually switches to 3g. But not automatically
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It seems to be happening to me too on Epic MIUI, it goes to 4G even with really low signal and goes back to 3G right after... Might be a firmware issue? Mine is 8.2.1
Inviato dal mio MI 5 utilizzando Tapatalk

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Is this the infamous Nexus 3G problem?

before I got my phone I read about all the 3G problems people were having.
when I first got my nexus, there were no issues at all. no dropped service or connection.
I'm in a 3G area (looked at tmobile coverage map) and I see no reason for this to be happening.
my phone will show that I have 3G connection (UMTS) but when trying to use anything that requires a connection, it fails.
on the other hand, HSDPA network works fine and so does EDGE.
I got my phone over a month ago and this hasn't started happening until recently.
I'm always on EDGE network now and if I'm not on EDGE, I have to be on HSDPA in order for me a to send messages or use data connection.
UMTS is broken and does not give connection. I want to call HTC and see if they can replace it but I don't think they'd do it.
anyone else have the 3G problem? I'm sure a lot do, but is it only with UMTS?
This is not the "3g issue" everyone talks about. This sounds like you are either having network issues in your area, or did you flash a new ROM to your phone recently?
RogerPodacter said:
This is not the "3g issue" everyone talks about. This sounds like you are either having network issues in your area, or did you flash a new ROM to your phone recently?
Click to expand...
Click to collapse
I had been on a CM test build and hadn't flashed a rom in a long time.
network issues isn't the problem because my friends G1 yesterday had 3G and I had EDGE.
I don't think it's my SIM card either, not even two years old.
I'm tempted to call HTC because this happened out of nowhere after a good month of no problems.
99% of the time it's a carrier issue.
When the number of users on a carrier grows or jumps on the carrier, the tower signal shrinks it's radius. And if you're in two competing tower areas, then your signal might drop/fluctuate because the phone is swapping between them.
Nothing the phone can do about it. It's probably your carrier issue.
how can that be when my friends right next to me have full bars and 3G while I'm on edge?
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dudebro said:
how can that be when my friends right next to me have full bars and 3G while I'm on edge?
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Change your settings to WCDMA only then.
I've tried and all I get is no connection or occasionally hsdpa.
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I have experienced something like this. I am unrooted and few weeks after having the phone I would see a 3g symbol but be unable to access any data. It has been very frustrating once but generally it kicks in again with a reboot.
A similar issue since installing froyo is that the stock browser wouldn't connect. Other browsers and applications could access data but the stock browser couldn't. It started again later but I now use xscope.
I love android but I hope that the continue to work on its stability because it could be improved
benjatt said:
I have experienced something like this. I am unrooted and few weeks after having the phone I would see a 3g symbol but be unable to access any data. It has been very frustrating once but generally it kicks in again with a reboot.
A similar issue since installing froyo is that the stock browser wouldn't connect. Other browsers and applications could access data but the stock browser couldn't. It started again later but I now use xscope.
I love android but I hope that the continue to work on its stability because it could be improved
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so is your 3G working now? I'm just going to call HTC and see what happens.
I've tried WCDMA only, flashing a radio, and anything I can find on the web but no luck.
dudebro said:
so is your 3G working now? I'm just going to call HTC and see what happens.
I've tried WCDMA only, flashing a radio, and anything I can find on the web but no luck.
Click to expand...
Click to collapse
Have you tried modifying your build.prop? If not, do a quick search and see if modifying it helps...
chowlala said:
Have you tried modifying your build.prop? If not, do a quick search and see if modifying it helps...
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Click to collapse
what should I search for? I'm not familiar with modding the build.prop.

[Q] Phone loses signal

Anyone familiar with the O2X losing 3g and 2g signal after waiting on silent/vibrate mode for a few hours?
Even after setting the phone back on normal ring sound it doesnt get signal until i shut it off and turn it back on.
Is that a common problem or should I start thinking about my cellular provider being to blame here?
I put mine on silent when I go to bed and when I get up in the morning it's fine with missed calls and msgs
No issues here. And my phone is more silent that ringer
Sent from my LG-P990 using XDA App
I would agree with the latest radio in v10D, the phone does have issues with staying connected to 3g in general. But silent/vibrate mode does not have an impact on that connectivity.
jivemaster said:
I would agree with the latest radio in v10D, the phone does have issues with staying connected to 3g in general. But silent/vibrate mode does not have an impact on that connectivity.
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Yep. The new baseband 0405 do get discoonect from 3G frequently
I am also experiencing frequent signal losses...
That's why I've got my SIM card exchanged for a completely new one.
However, the situation didn't get any better...
geistio said:
I am also experiencing frequent signal losses...
That's why I've got my SIM card exchanged for a completely new one.
However, the situation didn't get any better...
Click to expand...
Click to collapse
i experience the same problem...
I am have this issue too on Fr12 + 0405. "Only GSM" mode is more stable.

Nexus one suddenly get crappy signal

The other day I was getting H everywhere I went on Cyanogenmod 7.1 but suddenly I would barely get Edge, and as soon as I tried to use it, it died, no service. I tried flashing a few different radios with no success, even tried flashing Cyanogenmod 7.2 rc3 with no success... Is this the end of the line for my beloved n1 or is there any fixes anyone knows of.
Thank you in advance for your help.
-Lucas
Sent from my Slider SL101 using Tapatalk 2
lukeborn said:
The other day I was getting H everywhere I went on Cyanogenmod 7.1 but suddenly I would barely get Edge, and as soon as I tried to use it, it died, no service. I tried flashing a few different radios with no success, even tried flashing Cyanogenmod 7.2 rc3 with no success... Is this the end of the line for my beloved n1 or is there any fixes anyone knows of.
Thank you in advance for your help.
-Lucas
Sent from my Slider SL101 using Tapatalk 2
Click to expand...
Click to collapse
Have you tried to check your APN settings? Did you have this problem before flashed a new ROM?
I did have problems before flashing, in fact I only flashed things to try to fix the signal issue. Data is enabled, international data is disabled, National data roaming is enabled, network preferences is GSM/WCDMA (WCDMA preferred), AP names is T-Mobile US epc.tmobile.com, use only 2g is disabled, network operators is select automatically
I didn't change any settings in here from before is stopped working, at least not that I'm aware of.
Current setup:
Baseband version = 32.41.00.32u_5.08.00.04
Mod version = CyanogenMod-7.2.0-RC3-passion
Is there somewhere else I should look?
Sent from my Slider SL101 using Tapatalk 2
Ohh well guess it's time to move on, I just purchased a galaxy nexus, guess this is just a wifi phone now... Although I would love to fix it for a backup if someone has any ideas.
Sent from my Slider SL101 using Tapatalk 2

Help me please, 3G only but cannot connect to 2G networks

I have this problem, it is strange because when I put my phone on 2G network automatically lose and the same thing happens in areas of low coverage. I've tried changing roms, baseband and ril and the problem persists'm desperate not what could be the problem because as mencionesanteriormente the phone in 3G works perfectly. Please expect your help in truth I have no where else to turn. A and excuse my English: Crying:
maik2491 said:
I have this problem, it is strange because when I put my phone on 2G network automatically lose and the same thing happens in areas of low coverage. I've tried changing roms, baseband and ril and the problem persists'm desperate not what could be the problem because as mencionesanteriormente the phone in 3G works perfectly. Please expect your help in truth I have no where else to turn. A and excuse my English: Crying:
Click to expand...
Click to collapse
have you tried to go back to your carrier's stock rom?
If I tried but not working still works only on 3G, I flashed with SmartFlash and nothing as usual
Enviado desde mi LG-P990 usando Tapatalk 2
if you want to connect to 2g to save battery you should just try one of the cm7 based roms that have great battery life.
If you want to be in 2g just because you want to or because you don't have 3G coverage in your area, then you should probably contact your carrier (with your stock rom) and complain about it, if possible try a few different phones to see which ones connect to the 2g networks.

[Q] S III mini network issue

Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
I'm currently running the ALL2 baseband, but previously had both the ALJL and the ALK6 ones and didn't encounter any such issue...
Before sending it back you could try with a different SIM card, maybe yours is acting up (it sometimes happens, especially with old SIMs).
Seeing how nobody complained of a similar issue though, I don't think that changing your baseband will have an impact, but if you'd like to give it a try you can download original firmwares (that contain the baseband) from here: http://www.sammobile.com/firmware/. In order to install them, just follow the steps in the root thread.
Will do so. I'm going to pit-stop my SIM card @ Vodafone and let you know about it.
It's strange that this happens only deep inside buildings (eg. offices, malls, etc..).
When this happens, usually the data activity indicator disappears OR the S3 mini is using 3G frequencies (not H, not G, but 3G)
Just changed my sim card and the issue still persists...
It's driving me nuts. My feeling is that the S3 mini doesn't lock on a network cell when 2 are available with similar coverage.
Will upgrade to the latest build and let you know about it :banghead:
Sent from my GT-I8190 using Tapatalk 2
And now the handset runs XXALL2 from vodafone uk.
I'm curious if the phone will have that network issue furthermore.
Happy Holidays!!
Sent from my GT-I8190 using Tapatalk 2
bogdangr said:
Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,
ci6i said:
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,
Click to expand...
Click to collapse
So far there's no difference. Where I live the network coverage is pretty bad, but it doesn't "disconnect in the background".
Only at the office I can test it out for sure or inside massive buildings.
ci6i, go ahead and update; install kies (for drivers only ), get odin3 1.87 and flash it with XALL2 from samfirmware.
Lately I see there is XALL3 available for some asian countries.
I still think that my BlackBerry 9810 is a tank. unfortunately vodafone romania doesn't sync emails two ways via BIS so... :crying: I had to get back to samsungs...
Well, i understand to lose signal if network coverage is bad, but my phone gets "network stuck" in the middle of town. I noticed this few times: at job, the phone stands on the table near me, and i receive sms about missed calls (i have voice calls diverted to voice mail when unreachable). If i try to call or browse the net at this moment, it's impossible until i set airplane mode on then off. All this time, the phone shows full network signal and HSPA data connection.
I'll try to change the firmware after hollidays.
As mentioned above, try to change firmwares (to XXALL2), I've also noticed some network drops when I'm at home (however this is expected in my case), but when I installed this firmware, I noticed some signal gain (full on 2G and +1-2bars on 3G signal).
Hi again.
The same issue even on xall2
Just happened again today in a crowded place.
It goes to "3G" from "H" and then it's gone off the network.
Will try with XALL3 although there is a small improvement concerning "sticking to the network carrier". It seems it'a hard job to get a call when in coverage area...
If still no success, I'll loose my patience with this Sammy...
See ya!
Sent from my GT-I8190 using Tapatalk 2
You get SMS because they use a dedicated network bandwidth for this technology and apparently the S3 mini does not loose connection on this communixation channel.
It appears that S3 mini is dropping voice and data, but not sms and CB (cell broadcast).
Sent from my GT-I8190 using Tapatalk 2
LJL version. No drops. Sometimes when i am on edge of 3G coverage area
Sent from my GT-I8190 using xda app-developers app
Hi, i also have the problem with vodafone Romania. I can't place calls or use data connection. After reboot everything is ok. I tried to switch to Airplane mode and back, but no results.
Same problem over here
bogdangr said:
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC
I'm on VF RO, too.
Crappy phone, what can I say.
If it can't follow a network where there is sufficient coverage...
miguelfc said:
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC
Click to expand...
Click to collapse
Hi Miguel,
The only workaround for this issue (at least for me) is to keep it in GSM mode (no "AUTO mode", no "WCDMA only").
So the crappy phone won't have to switch frequencies and I can get phone calls (I start considering a luck when the phone rings...)
I'm on 4.1.2 now baseband I8190DXALL3 (latest on samfirmware) and still the same.
You just don't want to know how's everything downloading limted to GPRS
BR,
Bogdan
Does anyone know what's that *# code that enables service / engineering mode ?
I want to select on which network frequencies is the phone allowed to work.
I want to disable 3G mode and leave GPRS, EDGE, and HS(D)PA only.
The reason is that when the issue appears, S3 mini switches from "H to 3G" and "G to 3G" and then it's gone;
Although there are moments when it can fetch data with network on 3G coverage without problems...
The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?
ci6i said:
The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?
Click to expand...
Click to collapse
I found out the service code but the RF setup is not "sufforted".
Vodafone has implemeted already 4G in selected areas but it's not about that. On blackberry, iphone and nokia this is not happening.
As a frequency... 3-5 times a day while I'm at the office.
Sent from my GT-I8190 using Tapatalk 2
I'm using it with Orange Spain. I will try using the phone this weekend with another operator to find out if the problem is operator related.

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