Hello,
So I've been using my Xiaomi Redmi Note 3 Pro Global Edition (kate) for a month now.
Everything's been going great except for one bug that's really annoying : when I enter an rural area with only EDGE, and then get back into an area that has 3G, H+ or LTE, the phone doesn't switch back to a better data network.
I've found a trick that allows me to get a better network back, by changing the preferred network type to 2G and then to LTE again. Only then does it finally detect the LTE network. It works but it's annoying to have to do this everytime I want to search for something quickly.
I'm currently using CyanogenMod 13 for kenzo with kate modem flashed, but I don't think this is the source of the problem as I previously used MIUI 8 and there was the same problem.
I live in France but I'm almost sure the bands are not a problem as I can receive LTE, but it just doesn't switch to it when on EDGE.
I'm hoping you have some solutions.
Related
I'm having serious issues with AT&T LTE in central Mississippi. The LTE network in my college down has been here for at least 8 months, but after ATT did some network upgrades last month, I can no longer access the HSPA network. If I make a call, it kicks me straight down to the EDGE network after a 30+ second delay. Same thing when I receive a call. As a result of the delay, I frequently miss calls and the phone never rings. The issue just started this month. Tried the new APN settings as suggested on other threads, and that just results in EDGE only access. I called AT&T and they forced me to do a full wipe and have them do a network reset. That didn't really fix the issue.
I am on ViperXL 2.0.0 with the latest radio (have tried the older radio too, no fix). Still on HBOOT 1.32 (I think, If not, it's 1.35) I've researched the issue to no avail as to another solution. If I could just use the HSPA network things would be fine, but when there is no LTE I drop to EDGE and the signal strength on the EDGE network here is 2 bars tops when there is 5 bars LTE, so I frequently have no signal when I used to have 5 bars. AT&T, as always in their valiant effort to cover their own butts, says there is no network issue.
Input and solutions welcomed! Thanks guys!
Just tried a sim swap with a friend. He has the s4 active and it makes the step from LTE to HSPA+ with no issues. However, his SIM in my phone still refuses to acknowledge the hspa network. Any suggestions guys? I'm running out of solutions. Problem exists on elegancia and viperxl ROMs.
This wouldn't be an issue except that I live in an area where there is literally at most one bar of edge once it drops the LTE.
UPDATE: After the new sim didn't work, I went ahead and relocked the bootloader and flashed the official RUU. No luck. It seems as though my HSPA radio has actually gone out and will not work.
Weird. I went back home and it works perfectly. But it didn't work where I currently live or anywhere along the 75 miles of travel. Regardless, the replacement HoX+ will be in next week.
Sent from my HTC One X+ using xda app-developers app
I recently purchased an Xiaomi Redmi Note 3 Pro phone (kenzo), it covers all the bands that rogers uses in my area in Canada, I believe.
https://en.wikipedia.org/wiki/Rogers_Wireless
I can connect with the phone on LTE, HSPA+ with no problem, if available. Sometimes, if I am in certain area's, the signal indicator drops to 3G .... it shows a decent signal, but no calls or data can go through.
In this example on the following chart, the first WCDMA connection,my phone only indicates 3G and I can not make a call or use data. When my call attempt is done, it goes back to LTE. Then I try again. Then for the second WCDMA connection on the chart, I am connected as H+, I can make a call and use data. Whenever this phone connects to CID 31072 the problem happens. When I connect to CID 31075, no problem. These are just examples of towers that I reach from my home. I get the same problem occuring other areas.
Any suggestions on what I need to change on my phone? Is my phone making a kind of 3G connection for some reason, which Rogers doesn't support? I have tried everything I can think of, Miui dev versions, CM13, LineageOS 14.1 etc, change Android Radio Menu settings, etc.
Nothing seems to fix this issue.
Any advice would be greatly appreciated!
I have been using Network Signal Guru, and have figured out that the phone will connect calls data on 3g if the band it finds is B5-850M .... if the tower tries to connect to is B2-PCS-1900 the call fails.
I tried to block the use of band 2 with Network Signal Guru, but it seems to still use it when it finds it.
I have since flashed a LineageOS rom and used the Network Signal Guru to disable band 2 WCDMA. The phone has not been experiencing the issue at all since. I am cautiously optimistic that I have found a solution. Still not sure why this band doesn't work here though.
I just bought a LG G5 RS988 (Unlocked Model) recently and at first I had really bad connections indoor I said to myself this is probably normal.
Then I just saw that the phone seems to be only in 3G in the corner but apparently it's suppose to be able to get 4G.
I googled it and apparently it happened since the nougat update, many users lost the ability to use the 4G connection.
I'm I the only one with this issues ?
The phone boots, it stays on LTE, on the main screen then once you logon it switches to 3G WCDMA and stays there.
I have 3 options in the data menu tried all the ticks (Global) and it picks up the LTE 3G, the LTE/GSM somehow disable the whole data mode and the other one too, and the only way to get the phone to have a very good connection is on GSM only by accessing the secret DEV debug option :
*#546368#*988#
Select Field Test, Modem Settings, and RAT Selection, then selecting GSM Only.
Then my data bar goes full or 4/5 inside my apartment near the window.
GSM / WCDMA / LTE Auto :
LTE only : Makes it a X Disabled
LTE / WCDMA : Goes on 3G 2/5 bars
LTE / GSM : Goes on 3G 2/5 bars
GSM / WCDMA : Goes on 3G 2/5 bars
WCDMA : Goes on 3G 2/5 bars
GSM Only : Goes on normal G 4/5 bars
It's like the LTE doesn't work at all...
My experience
I've been researching the issue myself. I have found that it's either your carrier's network doesn't "whitelist" your IMEI number, so it won't connect to LTE, or your phone doesn't fully support all of the bands that are needed to connect. I have the RS988 and mine needs to have airplane mode toggled on and off or the carrier settings toggled to global and back in order for it to go to LTE. Otherwise if I try to use the LTE only setting, I cannot make or receive calls.
In other forums, they mention downgrading the OS to marshmallow to get LTE working again. I tried this... It was painful to perform and after a bootloop I finally got the phone to stock marshmallow. However, once I finally got it working and I made a call, it went right back down to H or H+ and stayed there.
My impression of the issue is that someone could make an app to toggle back and forth from the original carrier setting (LTE/GSM/UMTS) to a second setting (GLOBAL) and back to the original network setting (LTE/GSM/UMTS) after a call is made... This would be a simple way to fix the issue and get back on LTE even though it isn't perfect. This is probably your best bet to get on LTE because even custom ROM's don't seem to fix the issue for me.
It's a very bizarre issue. If anyone else has a better answer or more knowledge on the issue, please let me know.
If anyone knows why this phone seems to specifically have these issues, also please let me know.
TechGuruer
"Prefer 3G" doesn't connect to data network - known issue confirmed by mi hotline
Hi,
I noticed recently that if i select "prefer 3G" from "preferred network type" then the data connectivity is lost. I use airtel network in Bangalore where 4g is good however in my native, 4g network is not that great and in my previous phone it uses hsdpa (3g) most of the times.
I called up the MI India hotline to check if my poco phone is having this isolated issue since i didn't see anyone else complaining. The customer care executive confirmed that it's a known issue and they are working on it. Could other poco phone users confirm that they see the issue?
Regards,
Sudhakar.
3g problem
I've been using xiaomi for 2 years. Most of the phones have 3g problems. There is no connection with H + icon. It's not 10 minutes. If you turn off the mobile data or plane mode, it comes on. Mi4, mi5, mi6, redmi note 4, redmi 5 plus, all MIUI version and android 6-7-8. I've seen problems with these devices and versions. It only happens when you connect with 3g. or 3g preferential. an annoying problem.
Thanks for confirming.
I have quite a lot of problems with this phone.
1. As of now the 4g/LTE is not working too. This happened 2 weeks earlier as well. The service center guys updated the phone to latest and did factory reset. Then it started working. Now again today the 4g/LTE data not working. The phone is on latest software and i even did a factory reset still not working.
2. Many times people told me that my phone is not reachable. During those times even outgoing calls were not happening until i switch to 2g manually.
3. As mentioned already data does not work on 3g.
I had so much expectations on this phone. But now disappointed.
buz-mavisi said:
I've been using xiaomi for 2 years. Most of the phones have 3g problems. There is no connection with H + icon. It's not 10 minutes. If you turn off the mobile data or plane mode, it comes on. Mi4, mi5, mi6, redmi note 4, redmi 5 plus, all MIUI version and android 6-7-8. I've seen problems with these devices and versions. It only happens when you connect with 3g. or 3g preferential. an annoying problem.
Click to expand...
Click to collapse
I haven't had troubles, but I don't use data a lot.
I have the Prefer 3G setting enabled.
hmm i have issues on mine 3g sim data card as well . need to on/off mobile data from time to time
Poco F1 (MIUI Global Stable V11.0.8.0.QEJMIXM ROM) has significantly better 4G signal strength than 3G or 2G. In fact I got problem with that, when I'll recieve call or make a call, the phone automatically from 4G goes to 3G or 2G, and in that moment signal strength bars goes from 5 bars (4G) to 1-2 bars (3G) and often other side cannot hear my voice. Later I choose manualy network (3G or 2G) and when I try yo make a call => "Cellular network not available"
What should be the problem? Is it software or hardware problem? ...btw I make a clean install/flash thru fastbot of MIUI Stable V11.0.8.0.QEJMIXM few days ago, but I cannot notice some differences
VkriLAB said:
Poco F1 (MIUI Global Stable V11.0.8.0.QEJMIXM ROM) has significantly better 4G signal strength than 3G or 2G. In fact I got problem with that, when I'll recieve call or make a call, the phone automatically from 4G goes to 3G or 2G, and in that moment signal strength bars goes from 5 bars (4G) to 1-2 bars (3G) and often other side cannot hear my voice. Later I choose manualy network (3G or 2G) and when I try yo make a call => "Cellular network not available"
What should be the problem? Is it software or hardware problem? ...btw I make a clean install/flash thru fastbot of MIUI Stable V11.0.8.0.QEJMIXM few days ago, but I cannot notice some differences
Click to expand...
Click to collapse
It means that VoLTE (Voice over LTE) is not enabled or it is not available in your region. That is why it is switching to 3g network to make a call. As for the signal bars, never trust miui on that. Got to about phone -> and find a option where it shows imei, sim status, etc.
callmebutcher101 said:
It means that VoLTE (Voice over LTE) is not enabled or it is not available in your region. That is why it is switching to 3g network to make a call. As for the signal bars, never trust miui on that. Got to about phone -> and find a option where it shows imei, sim status, etc.
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Click to collapse
Yes, in my country VoLTE is not available, but I don't see that as an insufficiency, I use it only for data/internet 4G.
MIUI signal bars should "work" same for both 4G and 3G/2G, i think it is some other problem. Btw use it code *#*#4636#*#* (testing mode) and there i can manually set my network (WCDMA only, GSM only, LTE only, CDMA, TD-SCDMA/UMTS... and all variations of them). Usually LTE strength signal is "70-80dbm / 50-60asu". When I set to WCDMA only or GSM only it is ""100-110dbm / 1-10asu" and that's in the middle of the city (where I live). When I enter some Mall, stairs of building or hike on local mountains, when I want to make a call, the result is "CELLULAR NETWORK NOT AVAILABLE " :crying:
Does it can be antenna problem? But then, why 4G signal is far better than 3G? Does it have separate antennas??? I got no idea really what should be the problem about that
VkriLAB said:
Yes, in my country VoLTE is not available, but I don't see that as an insufficiency, I use it only for data/internet 4G.
MIUI signal bars should "work" same for both 4G and 3G/2G, i think it is some other problem. Btw use it code *#*#4636#*#* (testing mode) and there i can manually set my network (WCDMA only, GSM only, LTE only, CDMA, TD-SCDMA/UMTS... and all variations of them). Usually LTE strength signal is "70-80dbm / 50-60asu". When I set to WCDMA only or GSM only it is ""100-110dbm / 1-10asu" and that's in the middle of the city (where I live). When I enter some Mall, stairs of building or hike on local mountains, when I want to make a call, the result is "CELLULAR NETWORK NOT AVAILABLE " :crying:
Does it can be antenna problem? But then, why 4G signal is far better than 3G? Does it have separate antennas??? I got no idea really what should be the problem about that
Click to expand...
Click to collapse
Without VoLTE you cannot make a call on 4G network. The SIM will automatically switch to 3G/2G. It's the same across all phones, all carriers, and in any country.
noob.gamer said:
Without VoLTE you cannot make a call on 4G network. The SIM will automatically switch to 3G/2G. It's the same across all phones, all carriers, and in any country.
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Click to collapse
It is OK that. I know that. In fact, I GOT PROBLEM WITH 3G AND 2G SIGNAL STRENGTH. I mention 4G just to compare signals. I got 5 bars on 4G and 1-2 bars on 3G/2G on the same location. I have super fast internet thru 4G (50-100mbps), while when I set manually to 3G it didn't even connect data, furthermore, I cannot make a call (Cellular network not available). Obviously it is a strange problem. I'm not arguing about VoLTE or 4G...
Is it the same antenna for 2G, 3G and 4G signal? Should I replace it? I will repeat myself again, I can't get HOW CAN 4G signal be better than 3G/2G?!
I insert both SIM cards (with POCO F1 I use dual sim cards) to other phones (Xiaomi Mi4c, Alcatel Pixi 4, Lenovo A536...) and everything is OK with all of them. So, that means it is a POCO F1 problem.
VkriLAB said:
It is OK that. I know that. In fact, I GOT PROBLEM WITH 3G AND 2G SIGNAL STRENGTH. I mention 4G just to compare signals. I got 5 bars on 4G and 1-2 bars on 3G/2G on the same location. I have super fast internet thru 4G (50-100mbps), while when I set manually to 3G it didn't even connect data, furthermore, I cannot make a call (Cellular network not available). Obviously it is a strange problem. I'm not arguing about VoLTE or 4G...
Is it the same antenna for 2G, 3G and 4G signal? Should I replace it? I will repeat myself again, I can't get HOW CAN 4G signal be better than 3G/2G?!
I insert both SIM cards (with POCO F1 I use dual sim cards) to other phones (Xiaomi Mi4c, Alcatel Pixi 4, Lenovo A536...) and everything is OK with all of them. So, that means it is a POCO F1 problem.
Click to expand...
Click to collapse
Try changing slots. Or try a different carrier. The culprit could be your network provider. If the problem still persists go to any service center and get it checked. BTW it is actually strange to see that 3g/2g network is weaker than 4g. Usually it is the other way around.