No cellular network redmi 3 - Xiaomi Redmi 3 Questions & Answers

Hello, this is my first post on the forums here.
Iv'e purchased a Xiaomi Redmi 3 last week. It turned on fine and after the first turnoff-turn on it simply didn't turn on again and was stuck on the mi logo.
Iv'e downloaded the latest stable chinese rom and flashed using miflash and the phone started working properly again.
The problem is I do not have a cellular signal. It's either non existent (empty bars marked with 'x'), empty bars or one or two bars at most. Even when there are bars I cannot receive or make any calls (when i call the phone it just rings and the nothing happens).
The sim card itself is new (micro), the phone is new. I tried contacting the cellular company and they said everything is fine on their side, also iv'e tried the sim card on another device and it worked. I tried fiddling with different settings like changing from preferred lte to prefer 3g, adding new vpn, changing the sim card settings through the phone from WCDMA, only LTE so on and so forth and nothing worked.
Iv'e read around the forums here about the whole bootloader unlock, rooting, dev roms. I'm a newbie when it comes to these things and don't know weather I should do there and if it would help my problem.
Oh and last thing, I also verified that the device 3g/4g networks are compatible with the cellular companies in my country (same ones).
Thanks in advance,

Maybe there's a problem with ur set. I didn't root nor unlock the bootloader and reception has been fine for me from the start.
Sent from my Redmi 3 using Tapatalk

So you think it might be a faulty phone?
EDIT: I don't know if this helps or connected to my issue but i have this notification at the top saying "your SIM card isn't activated". I can't link to the pic since i'm a new user.

No one knows how to fix my problem?

I've got a similar problem I think.
I searched until I found that while flashing my IMEIs got lost and so the phone can't register to the networks.
Now I continue searching how to restore the IMEIs...
Derk

Related

[Q] unusual problem

Please help, have a horrible annoying problem…
Recently upgraded to iphone [to sell]
Put my micro sim in my phone until my normal sim arrived, once I got my normal sim and activated it I found I could longer make calls or send txts. But I can browse the web, very strange.
Currently my signal bar has an exclamation mark next to it, I’ve tried an Orange and T-Mobile sim which work absolutely fine, I have tried other O2 sims but get the same problem.
I’ve also tried flashing using task29, have tried radio’s 2.07.50, 2.10.50 and 2.12.50 and various different roms
Thanks in advance
does the sim still works in the iphone? If not its a sim failure and you should get a new one from your provider
check the small print, your sim probably belongs to jobs corp now, and has deactivated itself and reported your treason directly to the implant in steves head when you took it out of the iphone
Lol going to have to sleep with one eye open...but to answer wilwilwel the micro sim no longer works and the sim im using at the moment works absolutely fine in any other phone
HELP!
I dont know how to get home with out my htc

No network signal

Hi to all.
I put Cofface's cyano into my Redmi 3 a week ago and it worked fine except for the network signal that seemed to me to be weaker than on stable or dev miui rom. Yesterday I don't know what i did, i just switched the network type from the services menu (*#*#4636#*#*) to see the signal strenght of 2g/3g/4g and after doing that, the phone stopped to take signal with my SIM in any network type. So i switched back through MiFlash (and selected flash all option), to the Dev and also to the stable rom, but now I just have 4G working.
I tried to put again CM and i get no signal in every network type, even trying to restore a nandroid backup that i made when the phone worked. I also tried to flash through fastboot the NON-HSLO.bin took from developer rom, but nothing changed. What could it be? Where I live the 4G is not everywhere so most of the time I'll be without signal and it would be really frustrating.
I tried my sim in a Samsung phone and it takes both 2g/3g (the phone doesn't have 4g) , but trying another sim in my phone (of the same carrier) gives me the same result of above : only 4g . While on CM that sim could connect (only 4g) but mine not.
Please help me! :crying:
sorry if i didn't explain myself well, but I'm not english
EDIT: with the 4G i can only surf on the net but i can't make or receive phone calls. I'm giving up on this phone
EDIT2: following some guides I erased modemst1 and modemst2 but now I'm unable to get IMEI and I have unknown baseband
I have the same problem as you (almost)
http://forum.xda-developers.com/redmi-3/help/cellular-network-redmi-3-t3370459
I also have poor reception and can't make any call or receive them on any band 2g/3g/4g and i have this problem since I received the phone.
Did you fix your problem??
I have the same problem of very bad cellular signals.
with the same carrier, when other phones 2 samsung, 1 chinese (cheap unbranded), one very old nokia all have good reception, xiaomi redmi 3 pro is inaccessible from other phones.
today I'll try to install some signal booster apps from thestreet.com/story/11733410/1/7-apps-that-improve-smartphone-reception.html hopping for the best.
if anyone find any solution please update

Emergency Calls Only / No Data SIM - Three UK

Hello all,
I am having an intermittent but a strange signal problem with my wife's OnePlus X and I suspect that this is some sort of software issue with the modem firmware and not a hardware fault.
Basically if you reboot the phone, 9 times out of 10 there will be absolutely no signal whatsoever on the 3 UK network, the phone will just state emergency calls only. This happens on both 3G and 4G, but we usually have 4G turned off as there are not many areas within our region that support 4G yet. If you search Available Networks 3 doesn't show up.
Usually leaving the phone for hours the signal will come back, but sometimes it can be fixed by going into the Test Menu by putting *#*#4636#*#* into the dialer and going to Phone Information -> Toggling the Radio off and On a few times, but this doesn’t work every time. My phone is also on the Three network, so I have tried putting both SIMS's in the OnePlus X at the same time and the same issue occurs in both SIM Slots. If I put a Vodafone SIM in as well as the Three SIM, the Vodafone SIM works absolutely fine, regardless of the SIM slot it goes in, but it maintains a signal each time. The problem isn’t signal in the area as we have full signal in our house. If I put my wife's SIM into my LG G4 it works absolutely fine 100% of the time.
Three will not help us as the phone isn’t supplied by them, this is getting to the point now where this phone is becoming unreliable to use because if you have to reboot, chances are you won't have any signal for hours on end.
This happens on OOS and CM13 and has done for months.
Has anyone come across this issue before?
Just wondered if anyone else has experienced this?
All these views and no replies
I have the same problem and solution is nowhere to be found...
Did you find any solution to this? I've got this problem with my OPX.
Adam86 said:
Hello all,
I am having an intermittent but a strange signal problem with my wife's OnePlus X and I suspect that this is some sort of software issue with the modem firmware and not a hardware fault.
Basically if you reboot the phone, 9 times out of 10 there will be absolutely no signal whatsoever on the 3 UK network, the phone will just state emergency calls only. This happens on both 3G and 4G, but we usually have 4G turned off as there are not many areas within our region that support 4G yet. If you search Available Networks 3 doesn't show up.
Usually leaving the phone for hours the signal will come back, but sometimes it can be fixed by going into the Test Menu by putting *#*#4636#*#* into the dialer and going to Phone Information -> Toggling the Radio off and On a few times, but this doesn’t work every time. My phone is also on the Three network, so I have tried putting both SIMS's in the OnePlus X at the same time and the same issue occurs in both SIM Slots. If I put a Vodafone SIM in as well as the Three SIM, the Vodafone SIM works absolutely fine, regardless of the SIM slot it goes in, but it maintains a signal each time. The problem isn’t signal in the area as we have full signal in our house. If I put my wife's SIM into my LG G4 it works absolutely fine 100% of the time.
Three will not help us as the phone isn’t supplied by them, this is getting to the point now where this phone is becoming unreliable to use because if you have to reboot, chances are you won't have any signal for hours on end.
This happens on OOS and CM13 and has done for months.
Has anyone come across this issue before?
Click to expand...
Click to collapse
Adam86 said:
Hello all,
I am having an intermittent but a strange signal problem with my wife's OnePlus X and I suspect that this is some sort of software issue with the modem firmware and not a hardware fault.
Basically if you reboot the phone, 9 times out of 10 there will be absolutely no signal whatsoever on the 3 UK network, the phone will just state emergency calls only. This happens on both 3G and 4G, but we usually have 4G turned off as there are not many areas within our region that support 4G yet. If you search Available Networks 3 doesn't show up.
Usually leaving the phone for hours the signal will come back, but sometimes it can be fixed by going into the Test Menu by putting *#*#4636#*#* into the dialer and going to Phone Information -> Toggling the Radio off and On a few times, but this doesn’t work every time. My phone is also on the Three network, so I have tried putting both SIMS's in the OnePlus X at the same time and the same issue occurs in both SIM Slots. If I put a Vodafone SIM in as well as the Three SIM, the Vodafone SIM works absolutely fine, regardless of the SIM slot it goes in, but it maintains a signal each time. The problem isn’t signal in the area as we have full signal in our house. If I put my wife's SIM into my LG G4 it works absolutely fine 100% of the time.
Three will not help us as the phone isn’t supplied by them, this is getting to the point now where this phone is becoming unreliable to use because if you have to reboot, chances are you won't have any signal for hours on end.
This happens on OOS and CM13 and has done for months.
Has anyone come across this issue before?
Click to expand...
Click to collapse
Are you sure it's not the carrier's fault?
itskiran2000 said:
Did you find any solution to this? I've got this problem with my OPX.
Click to expand...
Click to collapse
aryan.arora180 said:
Are you sure it's not the carrier's fault?
Click to expand...
Click to collapse
My wife ended up getting rid of the phone a few months ago, she couldnt put up with it any longer as it was just the same. I don't think it was a hardware fault with the phone as it worked fine on any other network but Three. The phone supported all the frequencies that Three offers, so I have no idea why it didnt work right but certainly something wasn't right.
Adam86 said:
My wife ended up getting rid of the phone a few months ago, she couldnt put up with it any longer as it was just the same. I don't think it was a hardware fault with the phone as it worked fine on any other network but Three. The phone supported all the frequencies that Three offers, so I have no idea why it didnt work right but certainly something wasn't right.
Click to expand...
Click to collapse
When I had recently visited the UK, I had trouble connecting to the Three as well(through my home SIM as International Roaming). It didn't work so I ended up buying an O2 SIM that worked just fine.
I fixed it by putting some scotch tape over the back of the sim card, My OPX is almost 2 years old and the sim card is not in good contact with the phone inside I think.
Adam86 said:
My wife ended up getting rid of the phone a few months ago, she couldnt put up with it any longer as it was just the same. I don't think it was a hardware fault with the phone as it worked fine on any other network but Three. The phone supported all the frequencies that Three offers, so I have no idea why it didnt work right but certainly something wasn't right.
Click to expand...
Click to collapse

unstable signal and nothin I tried worked til now

I bought sprint Galaxy Note 3 unlocked from ebay India. Everyrhing work great in it but one problem and the biggest problem which can't be cured is UNSTABLE SIGNAL. Signal falls from full to no service and again gain network.
Did everything I can. Updated with latest stock rom, which automativally updates bootloader and modem.
Factory reset, cleaning and all, flashing new rom, changing to New Sim and trying every network Sim available.
There is nothing under the sun I didn't do.
I used this phone for a month without Sim and it worked normally without getting overheated. And I speak and chat on social sites like whatsap, Skype and it's works fine.
What is the real problem? Radio band compatability? Hardware? Antenna compatability?
I don't know what but this is the best phone I have ever used. If I can fix it, I would be the happiest one.
Please someone help.
nitin99859 said:
I bought sprint Galaxy Note 3 unlocked from ebay India. Everyrhing work great in it but one problem and the biggest problem which can't be cured is UNSTABLE SIGNAL. Signal falls from full to no service and again gain network.
Did everything I can. Updated with latest stock rom, which automativally updates bootloader and modem.
Factory reset, cleaning and all, flashing new rom, changing to New Sim and trying every network Sim available.
There is nothing under the sun I didn't do.
I used this phone for a month without Sim and it worked normally without getting overheated. And I speak and chat on social sites like whatsap, Skype and it's works fine.
What is the real problem? Radio band compatability? Hardware? Antenna compatability?
I don't know what but this is the best phone I have ever used. If I can fix it, I would be the happiest one.
Please someone help.
Click to expand...
Click to collapse
No one seems to feel like answering
Dial *#0011# key back and key input menu Q and input again 0000. Now open method information to nes and go network selection select automatic. restart ur device ! Done.

Network unavailable, please try again later

Recently successfully unlocked an M4 from Canada. Put in my local, brand-new working SIM card. No network, emergency calls only. Tried to change to WCDMA(only), back to LTE etc... nothing. Tried to manually search, saw various networks, tried to register, failed to register on network. Phone is unlocked, I tried the SIM in another unlocked Sony, got signal. Updated to MM, same problem. Is there a baseband issue? Regional lock? Network is seen but can't be connected to. Suggestions?
Network setting reset
maXDAmn said:
Network setting reset
Click to expand...
Click to collapse
Most android phone don't have a separate "network reset" like iPhones do. I just took the phone to a different city with better coverage, got full bars but went back to no network available after a couple of minutes. Kept trying to make a phone call but kept dropping the calls before losing bars. Any ideas?
My Mrs has had a similar issue with her M4 Aqua in the UK sometimes she just gets no sim - no service and has to restart her phone but there's no pattern to how or why it happens sometimes it doesn't happen for like 2 months and then then she has to do it 5 times in one day...
This is across different roms and different sims.
Seems Sony cropped out on something to do with signal pinging on this phone because a few other members have mentioned a similar issue

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