cellular data not working - Xiaomi Redmi 4X Questions & Answers

I updated my phone from miui 9 to miui 10beta....after few days cellular data is not working...signals are not shown....but when I connect to a WiFi network... cellular signals are shown.....but still I can't make calls...can anyone help me... please..

Try reinserting sim/restarting your device.
If possible try using different Carrier sim to check if this issue persist on your current network carrier or it is bug with miui.
Try changing apn for mobile data.
Try changing preferred network.
Are facing this issue in all areas or it is for specific area? If you are not getting network anywhere then it could be possibly sim card issue or miui beta ROM has network bug with update that you are using.
Also check if IMEI number is showing or not?

metelhammer said:
Try reinserting sim/restarting your device.
If possible try using different Carrier sim to check if this issue persist on your current network carrier or it is bug with miui.
Try changing apn for mobile data.
Try changing preferred network.
Are facing this issue in all areas or it is for specific area? If you are not getting network anywhere then it could be possibly sim card issue or miui beta ROM has network bug with update that you are using.
Also check if IMEI number is showing or not?
Click to expand...
Click to collapse
I changed rom..flashed fastboot rom..no imei issues.... still the same problem

harilal1080 said:
I changed rom..flashed fastboot rom..no imei issues.... still the same problem
Click to expand...
Click to collapse
I don't know other than above I've mentioned things what could possibly causing this issue.

same problem,,,ntwrk nhi aa rha h kal hi update maara tha maine aur kalse ntwrk prblm ho rha h

Related

Wi-fi problem on UNLOCKED CLIQ

Dear Modders I know this is only HTC braned phones forum but please don't delete my post because this is not brand problem but common unlocking maybe somebody can help me here ...
After long time tests I came to on result.
My phones wi-fi not working becuse it's unlocked ant then I insert another sim card which is not working in my country and there is not GSM antena indicator on that time wi-fi starts working but then I put my normal sim card which is working in my country and phone getting signal from GSM network it blocks wi-fi and I can't use my wi-fi even after that when I insert back the other cart which don't have network coverege in my country again it's not working till I fully format phone from settings.
Please if someone can have solution with this post here or tell me how to fix this so have working phone wit wi-fi and gsm network togheter
is your phone rooted?
Rooted or not, try a Factory Reset. That might fix your problem. If its rooted, flash the rom again after doing a full wipe.
Dear nephron phone is rooted I tryed reflash rom many times and no success even after full wipe. I think my problem is that my phone unlocked with the code I get from T-mobile and when my phone uses GSM sim card and I am getting registred in gsm network wi-fi can't find any network but when I put other sim card which can't register in my country because of there is no network for that sim card that time wi-fi works perfect.
So by my understanding GSM signal is not letting wi-fi to work how to do that to get working togheter ?? and also I have some doubt about unlock code can t-mobile have to unlock codes for on IMEI one will unlock carreir and another will unlock all functions? or I am wrong?
Please is there any expert on this issue so can help me with this...
Here is the my boot.img file maybe this will help to fix my wi-fi problem. please some adnroid developers maybe can give a hint or help me to fix my problem..
http://rapidshare.com/files/326965977/mtd0.rar.html
I am having the same exact problem with motorola Cliq and don't know what to do. Have you come to a conclusion on what to do?
The routine of the error is exactly what happened to you.

[Q] Mobile network not available..?

Hello, I bought of a friend a Samsung galaxy s and he said it needs only unlocking,so i "think" i unlocked it successfully.Was putting a O2 Simcard in and in applications i was having then the o2 SIM Toolkit.
But when i tried to make an phonecall, he tells me "Mobile Network not available",so i went to settings and wireless and network and tried to choose an network operator but he tells me then " Unable to connect to this network at this time.Please try again later."
What can I do?
Did you check the APNs?
Please first check if your IMEI is intact. If it is, flash a different MODEM and see if it works. If it's not, flash a fresh ROM using ODIN and that should hopefully restore your efs.
At first thanks for the reply, but now what is a APN? And how do i know if my IMEI is intact?
Sry,am a newbie
For you IMEI you should check your original SGS Box's sticker. There should be you IMEI number printed on. If you dial *#06# you should be able to read your IMEI. --> Look if it is the same as on your box
for apn settings. Apn is your connection settings, how your phone connects with the providers network. you have to check your mobile network settings if these are correct.
So, the IMEI nr is different then on the sticker,and the apn wasnt ticked,so I ticked the O2 and tried but still no mobile network.
Then i need to flash if I'm right?
I was already looking a bit around here about roms etc. But there are quite a few out there,so when you say to flash a fresh rom,which actually do I need to use?
Thank you
Hi again,
because the imei wasn't the same, I flashed it with a new rom (actually two different ones)
But still after both flashes I still don't got my old imei and still no mobile network available. After the one flash with I9000XXJPU he didn't said anymore no mobile network available,instead he said no data network available.
It would be nice if somebody would have some advice or help.
Thanks
hey! don't panic, i have had the the same problem
just download darky's resurrection edition in the development section and flash it. it should bring you back to froyo 2.2.1 and should also restore your imei properly. after this procedure you are free to flash any rom you want
dasickzz said:
Hi again,
because the imei wasn't the same, I flashed it with a new rom (actually two different ones)
But still after both flashes I still don't got my old imei and still no mobile network available. After the one flash with I9000XXJPU he didn't said anymore no mobile network available,instead he said no data network available.
It would be nice if somebody would have some advice or help.
Thanks
Click to expand...
Click to collapse
Flash back to 2.2.1
Check imei
Continue on..
Also the problem you had when flashed JPU sounds like you didnt have your APNs correct..thats why the "no data network available"
Sent from my GT-I9000 using Tapatalk
For apn settings check your provider website, our phone them and they will help you set it up
Insanity cm 014/glitch
Hey, I'm having exactly the same problem although the imei number for me is correct.... What can I do?? I googled this problem for hours and without any solution found.... Thanks for any help out here!
Sorry I don't mean to spam but I really need help with this! Thanks
hey, check this, seems to be solved
http://forum.gsmhosting.com/vbb/f453/samsung-i9000-after-unlock-no-network-1168675/
automatic search network...n pjt phone on Utomode for selectkon network
Sent from my GT-I9000 using XDA App
No Network
Hi!
I have the same problem.
Network is fine (i switched the SIM-Card into different phones), but my SGS GT I-9000 does not connect / find to any network.
I am running Darky`s ROM 4.0.4 v11.0 Black Edition with 3.0.17-Semaphore_ICS_1.2.5s.
Also, the phone says on screen the name of my network provider (COSMOTE), but no signal.
What now?

Network operators unknown and other bugs

Hey guys,
am sick of this issue so please advise. I did a full wipe and flashed zuk's 2.4.20 miui, and when i booted up the network operators i scanned for were all unknown. Btw this was done after I went back to wellcom firmware where my network operators were still displaying correctly.
I did the same, full wipe, tried CK's MIUI. also network operators all unknown. Full wiped again, revert to wellcom firmware to confirm network operators displaying correctly in wellcom, flash to edowar cm7, all unknown, again.
So honestly, is this problem in EVERY rom except stock and near stock (maclite) roms?
Also if anyone has a fix, please share. thanks. spending too much time trying to fix this already zzz
Same here....
I m sffering from the same problem..
Also i m unable to get 3G on my device...

[Q] [TX] CM11 not detecting sim card

After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Plz tell me about what build you talking?
P.S. Sry for bad English
flash last build kernel which sim card worked
adize said:
After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Click to expand...
Click to collapse
you are lost your IMEI
check it with *#06#
you should have a backup of NvRAM
arefsa said:
you are lost your IMEI
check it with *#06#
you should have a backup of NvRAM
Click to expand...
Click to collapse
AFAIK, 2012 xperia devices don't use/have NVRAM for the IMEI. Could you post a link showing where you got the information that the T uses NvRAM?
sgt.reza said:
flash last build kernel which sim card worked
Click to expand...
Click to collapse
thanks but what exactly is that build is?
sim detection
adize said:
After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Click to expand...
Click to collapse
sir
I have also the problem
but when I solved it
I followed like this
settings/more/mobile network/network operators
and the click to network operators so that it will search networks after searching one or two minute problem fixed sim detected
you may try like it goodluck
Tried it many times.
Sent from my LT29i using XDA Premium 4 mobile app

3G reception problem with mi3w

I am a proud owner of a mi3w and for the last 3 months I have no 3G reception. My phone works flawlessly if I change to 2G only, but when I switch to 3G only I lose reception completely. The problem started a little while after updating to the MIUI 7.0.5.0 stable international. Can it be a harware or a software problem?
I already tried reflashing ROM (through the selection of "return to factory settings"), clearing cache, updating to 7.1.1.0 and my sim works in a different phone receiving 3G and 4G. Any help would be highly appreciated.
Have you tried to search network manually?
Me_Ashish_ said:
Have you tried to search network manually?
Click to expand...
Click to collapse
Yes I tried both 3G preferred and only 3G. Moreover I tried to connect ot the 3G network but the problem remains. Can it be a hardware problem since the antenna works with 2G?
Plak4ever said:
I am a proud owner of a mi3w and for the last 3 months I have no 3G reception. My phone works flawlessly if I change to 2G only, but when I switch to 3G only I lose reception completely. The problem started a little while after updating to the MIUI 7.0.5.0 stable international. Can it be a harware or a software problem?
I already tried reflashing ROM (through the selection of "return to factory settings"), clearing cache, updating to 7.1.1.0 and my sim works in a different phone receiving 3G and 4G. Any help would be highly appreciated.
Click to expand...
Click to collapse
Dial *#*#4636#*#* and force wcdma
#MADHAN said:
Dial *#*#4636#*#* and force wcdma
Click to expand...
Click to collapse
Done that same effect....
try a fastboot flash of the modem
Me_Ashish_ said:
Have you tried to search network manually?
Click to expand...
Click to collapse
Lacedaemonius said:
try a fastboot flash of the modem
Click to expand...
Click to collapse
I reflashed with the misflash tool, wiping all data and system, using the latest ROM. Nothing changed.....
How do I flash only the modem?
Plak4ever said:
I reflashed with the misflash tool, wiping all data and system, using the latest ROM. Nothing changed.....
How do I flash only the modem?
Click to expand...
Click to collapse
IDK. Also I don't know if Baseband has to do something with reception. If it does, you should flash MIUI MM. It updates Baseband version from 3 to 4.
use "fastboot flash modem" and then filename.ext
http://forum.xda-developers.com/xiaomi-mi-3/general/guide-flashing-fastboot-miui-roms-t2938279
Hello. Were you able to resolve the issue.?

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