My phone's mobile network is keep switching from 4G to 3G and 2G, I turned off choose automatically and register on sorted 4G but no correction to the problem, I even dialed *#*#4636*#*#* and choose LTE under preferred network in phone information but network is still switching to 3G and 2G. Any other solution?
Are u using Jio Sim?
Try to reset your device one time.
Reset your network settings
Related
Having a problem here. i don't know if its the phone or the network. Im using C6833. I just changed my sim card for a GLOBE LTE sim (Philippine) ., but upon switching on LTE/WCDMA/GSM it will scan network but after 5 mins it will lost its connection and will not scan any network again.. but in a settings of WCDMA/GSM my network run smoothly., can you figure out what is the problem? thanks for your help.,
Sorry for reviving ths post, but I have a problem close to what OP has...
When I click LTE/WCDMA/GSM. It cannot detect any 4G signal, goes to 3G. Then, the option reverts back to WCDMA/GSM.
I tried the SIM card on another phone, and it can detect 4G signal.
Would appreciate any help.
Hello,
I know i may be posting about Custom ROM in wrong section, but being a new member am not allowed to make post in Development thread.
Regarding issue, I installed Cyanogenmod 12.1 Build 17 ROM Yesterday. All went well. But am facing an issue with Data Connection
Am Using Reliance SIM Card and since am mostly on roaming and Reliance does not have 3g services in my roam location, i select Tata Docomo netwok for using 3G Data services. However after installing the New ROM, though am able to select Tata Docomo Network and make calls with same, Data does not work with it. To be clear i have Data Roaming On and am able to use 2G Data on Reliance Network.
I tried manually changing APN but it did not work either. Is it the bug with the ROM or am i missing something? May sound silly but is there any way to force start Data?
Note: Tata Docomo does have 3G issues. If 3G gets disconnected, you have to refresh network selecting either Docomo 2g or Reliance 2g network and then again selecting Docomo 3G. This method works with 100% hit Ration on stock ROM and even other devices like Micromax. Tried the same, but never worked on CM12.1
Hello. I have an SM-G925F which I bought from Telekom Macedonia and I am still using my number from there also but I am currently in the US and would like to use it on T-Mobile USA.
I know that the device supports all the same bands as the SM-G925T model.
The problem I am having is that when my phone is set to LTE/WCDMA/GSM in the Network Mode settings, I do not have any data connection at all, only when I make a call, I start to get a data connection but only 3G/H+. If I switch my setting to WCDMA/GSM, then I get a data connection at all times like normal but it still is only 3G/H+. I have tried two different APNs and different settings in the APN but I still cannot get a data connection at all times on the LTE/WCDMA/GSM setting and I cannot get LTE/4G at all.
After contacting T-Mobile, all they came up with is to try to have the same software reinstalled on my phone. Does anyone have any experience with this and can anyone help me?
Anyone?
Call Tmobile and have them input your phone's IMEI in their system. Ask for the APN settings as well. I am on the same boat and one call to ATT got me from H to 4G. Your phone will just show 4G, not LTE but you will get LTE speeds regardless.
I tried doing that too. I called T-Mobile a few times and they confirmed my IMEI number being on the account but still no luck. It's really weird..sometimes I get 3G/H+ on the "LTE/WCDMA/GSM (auto connect)" network mode setting on the phone but most of the time, I get NO DATA connection at all..only the signal bars.
Any Update
Did you finally figure it out? Is LTE working now?
Help, i think that there's something wrong with my phone. The signal coverage of my phone is sometimes missing without any reason, and will appear a minutes later or will appear if i set my phone airplane mode to on and off again.
I tried to use move my simcard to my other phone and there's no problem with the signal.
The problem is 'cause you have a not 4G SIM CARD, and the phone is trying to get 4G signal. To fix this:
1. Get a 4G SIM CARD
or
2. Go to Network Menu and select 3G prefered.
I got the same problem and i have 4g sim. I don't no what is the problem. In my case may be the methal bumper but after change it with one from silicon i still got the problem. May be the thempered glass from back of the phone?
I got the same problem and i have 4g sim. I don't no what is the problem.In my case if i select GSM in mobile network its working fined but if i changed to WCDMA i have signal problem /
parthiban.appadurai said:
I got the same problem and i have 4g sim. I don't no what is the problem.In my case if i select GSM in mobile network its working fined but if i changed to WCDMA i have signal problem /
Click to expand...
Click to collapse
Isn't there one of the option where it chooses either WCDMA or GSM?
LTE (preferred)/WCDMA/GSM
Tap >> settings >> ...more >> mobile network >> preferred network type
Check the setting is 'LTE (preferred)/WCDMA/GSM'
And not 'WCDMA only'
And not 'GSM only'
Also if you are using a dual SIM phone like I do then do this:
SIM1 = 'GSM only' where the network is a GSM one.
SIM2 - 'LTE (preferred)/WCDMA/GSM' where the network is a WCDMA one.
I'm using a Samsung Galaxy S9+ for a couple of weeks now and noticed a strange issue.
Whenever I'm connected to my service providers 4G LTE network and use mobile data, I can see mobile data along with the mobile network get disconnected and reconnect quite frequently. As in, I can see the mobile signal indicator turn to no signal and then back on again.
It seems to occur when there is a burst of data communicating through the connection. i.e. start of a Youtube video playback, doing a speed test etc. It's quite frequent and annoying.
So far I've tried the following to no avail:
- Network reset
- Using a different SIM card
- Booting the phone in safe mode
Pretty sure it's not a network provider issue because my wife uses the exact same phone with exact same firmware and hers does not have this symptom.
Any help is appreciated.
P.S. - I have not seen the issue when connected to WiFi on the HSPA+ network of the provider. Seems to occur only on 4G LTE.
I tried the following additional scenario:
I put two sims;
SIM 1 for calls and text on 3G/2G auto connect
SIM2 for data on LTE/3G/2G auto connect mode.
SIM2 connects to 4G. Whenever there is a sudden burst of data on it, mobile networks on both SIMS disconnect and reconnect.