Network Issue - Xiaomi Redmi 4X Questions & Answers

I have a redmi 4x.
I am backed from cardinal aosp rom.
I am flashed miui 9 global stable rom by fastboot method.
Not working network search and 2g mode.
Please Help...
Pictures attached..

same problem here.. but little got a bit different
My XIAOMI REDMI 4X phone only can connect to 4G LTE and cannot find or receive 3G / 2G network signal.
Because of this problem i only can use one SIM at a time it coz when i use SIM1 for using mobile data, SIM2 will showing "No Network" this happen cause of SIM2 couldn't get 3G/2G network signal for its connection. Same issue if I switch SiM2 as my mobile data. SiM1 will be "No Network".
I really hope someone here could give me some solution to SOLVE this problem. also the SIM that i use to get mobile data it has problems that its cannot make out and receive any incoming call. Just regular Messaging are working.
another thing MMI short code also didn't work out it will pop-up with error msg like "cannot connect to server or no network connection" something like that.
This problem has haunted me more than a year and i still cannot get it fix. Need help because i am out of budget to buy new mobile phone .:crying::crying:

Related

[Q] Problem in mobile network

I have galaxy s, india, there is a problem of either sim or network , i got all signal bars, but i dont get any network, i have tried many sim 2g and 3g, almost 20 min i can call anybody or recieve calls, open internet, but then it says, "Mobile Network not available"
Help
Try to change your modem.
Check your APN Settings in mobile networks

[Q] Unable to connect to Vodafone 3G (C5302)

Hi
I am in Kolkata India and recently switched from a 2G to a 3G plan with Vodafone Kolkata. Ever since then, my problem is that I am unable to connect to 3G using WCDMA. Neither voice nor data works. If I revert to GSM only, then voice and 2G works fine. Wifi has been fine and my saviour at home.
Phone details: Sony Xperia SP C5302 running Android 4.3 build 12.1.A.1.205.
I have confirmed with network service that it is not a SIM card issue, by carrying out the foll. tests already
1- Signal strength in the area of use : At the time when I am unable to connect to 3G, my colleague sitting in the next desk and using a Motorola phone is consistently able to connect to the same 3G network from his phone. So the network strength must be fine.
2- SIM damaged or dirty - I have obtained a new SIM card as replacement, after this problem started, from my service provider yesterday. But the problem is not resolved.
3- Manual network search and connection - I have tried this many times, using WCDMA only or WCDMA(Preferred) options. In either case, only on rare occasions, the phone was able to connect to a network. However, 3G data connection (H+ icon) did not show and then the phone disconnects from network. On most occasions, when I manually attempt to connect to the 3G network, I get the message "Could not register to the selected network. Make sure SIM is inserted."
3- Trying different SIM/Handset - I have tried out both options of switching SIM and handset.
- My SIM on Motorola handset - connects to H+
- Another SIM on my Sony - momentarily connects, then disconnects and then does not connect to network.
Please let me know if anyone has faced similar issues and found any resolution. Thank you in advance.
soumit.c said:
Hi
I am in Kolkata India and recently switched from a 2G to a 3G plan with Vodafone Kolkata. Ever since then, my problem is that I am unable to connect to 3G using WCDMA. Neither voice nor data works. If I revert to GSM only, then voice and 2G works fine. Wifi has been fine and my saviour at home.
Phone details: Sony Xperia SP C5302 running Android 4.3 build 12.1.A.1.205.
I have confirmed with network service that it is not a SIM card issue, by carrying out the foll. tests already
1- Signal strength in the area of use : At the time when I am unable to connect to 3G, my colleague sitting in the next desk and using a Motorola phone is consistently able to connect to the same 3G network from his phone. So the network strength must be fine.
2- SIM damaged or dirty - I have obtained a new SIM card as replacement, after this problem started, from my service provider yesterday. But the problem is not resolved.
3- Manual network search and connection - I have tried this many times, using WCDMA only or WCDMA(Preferred) options. In either case, only on rare occasions, the phone was able to connect to a network. However, 3G data connection (H+ icon) did not show and then the phone disconnects from network. On most occasions, when I manually attempt to connect to the 3G network, I get the message "Could not register to the selected network. Make sure SIM is inserted."
3- Trying different SIM/Handset - I have tried out both options of switching SIM and handset.
- My SIM on Motorola handset - connects to H+
- Another SIM on my Sony - momentarily connects, then disconnects and then does not connect to network.
Please let me know if anyone has faced similar issues and found any resolution. Thank you in advance.
Click to expand...
Click to collapse
I think that there's an option to use 2G instead of 3G in the settings menu, have you checked to see if that is enabled?
Plum Crazy said:
I think that there's an option to use 2G instead of 3G in the settings menu, have you checked to see if that is enabled?
Click to expand...
Click to collapse
That is the WCDMA option I've mentioned about, there was no other setting for this.
Anyways, it turned out to be a hardware problem. Got the "mother-board" replaced for free as it was under warranty & now working fine!
soumit.c said:
That is the WCDMA option I've mentioned about, there was no other setting for this.
Anyways, it turned out to be a hardware problem. Got the "mother-board" replaced for free as it was under warranty & now working fine!
Click to expand...
Click to collapse
Good to see that you've sorted out the problem!

[Q]3G only mode when selected, it is not working/no service

Hi,
I recently had a factory reset, since my Xiaomi MI 3W was not responding! I use wifi most of the time, I have activated 3G data pack from Airtel (Service Provider), MIUI version - MIUI 6.3.9.0 (KXDMIBL) | Stable , the problem that am facing now is, when I select 3G only under Preferred Network Type (Mobile Networks), usually I had selected 3G only before factory reset & it was working fine, but now when I select 3G only there is no signal/service(emergency calls only), when I select 2G only or Prefer 3G, I get the service/signal, but I am unable to browse 3G data! If anyone has a solution, please let me know, since I have no clue of the customer support in India/Bangalore.
Thanks
Lognathan
Hi, I am having the exact same problem. And I'm also on airtel. When I insert this sim into anyother phone the 3g is working in that phone. I have been using this phone from past 1 year and i didn't have any probs until now. And the worst part is the customer service centre and the service provider haven't got a clue apart from throwing the problem on each other rather than finding a solution!!
Naveen.
Lognathan said:
Hi,
I recently had a factory reset, since my Xiaomi MI 3W was not responding! I use wifi most of the time, I have activated 3G data pack from Airtel (Service Provider), MIUI version - MIUI 6.3.9.0 (KXDMIBL) | Stable , the problem that am facing now is, when I select 3G only under Preferred Network Type (Mobile Networks), usually I had selected 3G only before factory reset & it was working fine, but now when I select 3G only there is no signal/service(emergency calls only), when I select 2G only or Prefer 3G, I get the service/signal, but I am unable to browse 3G data! If anyone has a solution, please let me know, since I have no clue of the customer support in India/Bangalore.
Thanks
Lognathan
Click to expand...
Click to collapse
Hello. Were you able to resolve the issue?

Mobile network not working for MI5 - Critical

Hi MI5 community,
I am unable to use mobile network flawlessly in my MI5. Sometimes SIM1 running, SIM1+SIM2 both running, none of SIM card works. 2 weeks back I mistakenly selected the radio band as USA Band from *#*#4636#*#* -> Phone information1. Then after a fresh flashboot ROM installed problem solved automatically, but ideally this should not be. But now I am having terrible issue with SIM1 and SIM2 signal reception. Finally I have successfully write NV Values which was originally. But even after setting up values to the original, I am not getting mobile network signal. If I put only one SIM card then status bar says No Signal. If I put both SIM then 1st one says No Signal and 2nd one says Emergency calls only. Sometimes randomly SIM1 runs but SIM2 not. sometimes both not, sometimes both. Frustrating experience ever. Would appreciate if anyone can help me.
Looking forward some help from @TheUltrametricSpace especially.
I don't know whether i can help or not but i used to have mobile network fluctuating issue. At the same area, my SIM1 AND 2 will goes from 5 bar to 0, then came back to 3, then back to 0 then back to 5 again. It happen countless of times during the day(or even night). But the problem fixed when i switched to xiaomi.eu rom for mi5. I did do clean wipe system, data via twrp before i switched to xiaomi.eu rom.
Hope that helped
Hi @yChoon
Thanks for adding some views. Yesterday full day I was in latest EU ROM and the whole day I couldn't able to receive any signal. But around 8PM I have received signal @sim1 only. I hope I will be able to find out the culprit someday. But completely clueless
Read this : http://forum.xda-developers.com/mi-5/development/xiaomi-mi5-qualcomm-diagnostic-drivers-t3336200
That is why i tagged him. But he is not responding
Check this : http://en.miui.com/thread-277708-1-1.html
No success
:/ sorry i couldn't help you then. i fixed that problem by my own step above.. if it can't help you, at least i hope it could help other people
Hello @yChoon
I'm having the same issue as you with my Mi5. Did you ever experienced those issues again?

Internet Data Cellular ALWAYS Off, when dial telephone active on Mi5.. help me

My phone is Mi5
problem:
when there are incoming call or outcall by phone, DATA Cellular ALWAYS Off not connected to internet..
i use dual sim..
sim 1 : use internet
sim 2 : use telephone
i use android nougat on global stable and global beta always error.. i have try to downgrade to masmello.. the problem is same...
but.. when i use OTHER phone.. (redmi 4)...
internet data cellular can activate together when telephone active/incoming call....
WHY.. in Mi 5 always error ???? please help me....
i already try switching SIM CARD and problem is same.. before incoming calls,, internet mobile data is on / active.. after when incoming calls, mobile data being off not connected to internet.. symbol indicators internet not Appear..
VoLTE no available in setting my phone...
i try enable *#*#4636#*#* and then enable VoLTE but can't enable...
this problem appear after update to android 7 nougat,
before update nougat is working no problem... i try to downgrade to Android 6 Masmello.. this problem is same NOT SOLVED... please help me to fix this problem.. i tired on my working become late...

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