I bought this phone with MIUI 6 last version after that it upgraded to MIUI7. At first I used 2 SIM cards for some time. Then only one.
Yesterday after I sold the phone having latest MIUI 8 a strange problem came up as the buyer put in both of his SIM cards.
When both of the sim cards are inserted, the phone shows no SIM. If only one SIM card is inserted then the connection works fine. I tried inserting the SIM into the second slot which seems to have the problem and 'no sim' was displayed.
My question is as I never had a repair on my phone, could this be software problem? I've installed fastboot rom 2 times already with the same result. I've done factory reset for just the heck of it even after wiping and installing the fresh MIUI 8.
I used *#*#4636#*#* to try and switch off the radios on both cards, but for some reason 'turn off radio' button is click able but doesn't do anything. It just keep saying 'turn off radio'. Also on the preferred network mode the automatically selected values show 'WCDMA only' for sim one and 'Unknown' for sim two, no matter how many SIM cards I changed. I changed both settings to 'LTE, GSM/WCDMA' many times to no avail. Either the SIM 2 slot seems to be the culprit or the software. Could something like a SIM slot die after it is unused for a long time? And if it's dead why is it choking off SIM1 as well when both are inserted together?
I flashed MIUI 8 on my Redmi 2 Prime and i faced the same problem. If you remove the SD card, both the sims work perfectly. It is the similar to the tech. in Redmi Note 3 or the 3s Prime. They have a hybrid SIM card slot and the phone, when flashed with MIUI 8 assumes that you have a hybrid SIM card slot too, whereas you don't. So, I'm sorry to say this but you'll have to flash MIUI 7 for both the sims to work along with the SD card.
Fastboot rom guys, flash fastboot rom!
http://en.miui.com/thread-126437-1-1.html
Flash miui v7 in fastboot.I had also face this trouble. When I flash miui v7 fastboot everything work properly.
Yup I'm facing this issue on miui 8 it's a software bug... When I enable data connection it shows the indication of data working properly but after some second's the sim turns off like no sim is inserted but net is working properly... Better to switch to miui 7 for a couple of days until the next update.
Hello, Pankaj.Pal9 bhai.
It's a Software problem. Not the Hardware issue. I faced the same problem on my Redmi 2 Prime smartphone after installing the MIUI 8 Global. Faced the same problem in the phone with MIUI 8 but not with the CM13 or Dirty Unicorn Custom ROM. If you are Okay with Custom ROMs, then install CM13 or Dirty Unicorn. Otherwise, just install MIUI7 Fastboot version.
If you ask me, I will say CyanogenMod 13 is the best ROM for Redmi 2 Prime and other Xiaomi Devices. You can get more features in CyanogenMod 13 than MIUI7 or 8. If you are looking for Perfectly Optimized Custom ROM for the device, then the Dirty Unicorn ROM is best.
Related
My redmi2 not detect both sim cards , I'm using (ressuression remix) 5.5.9 rom .. I try to change ROM .. In any ROM sim not detect ...screenshots in comment box .help me
Here is screenshots
try miui oficial rom
Sent from my 2014817 using Tapatalk
Miui official rom also checked ... Sim not detect in miui rom also ...
Try boot with only Sim 1 and see if that helps
What is your device model..??
Is it hm2014813..??
Hi, I suddenly started to face the exactly same problem. I was running RR 5.7.4 and SIM cards are now not detected in any slot. Tried reflashing and it still doesn't work. Putting a small piece of paper behind the SIM also doesn't work.
Thus, I worry it could be a hardware problem.
Any ideas how to fix this?
Try with another sim.Is imei is still there?
I faced that problem with some sim cards.But other sim is being detected.So try another sim cards.
Other sims also do not work.
It still shows me imei...
I have a redmi2 it,s still working nice until last week there is no signal and message say that I should activate my sim , and radio signal was deactivated ...and I can,t chose the 2G mobile network
I have been facing a problem in my Redmi 2 Prime, whenever i switch data sim from SIM 1 to SIM 2 the signal for both SIM goes off and it shows no Service or No SIM Card, even while it's inserted, tried and working on other phones, I have Jio 4G Sim(Blank SIM) in slot 1 and reliance GSM in Sim 2 and if SIM 1 is selected as data SIM, then it works with 2g Signal, but when switching to SIM 2(for Data) No Service or NO SIM CARD is shown, tried also by removing either of the SIMs from the slots, but if Reliance remain in SIM2 then i face same issue, sometimes it works on removing sims and restarting my device several times previously on MIUI8 global Beta, i have tried:
1. Downgrading to MIUI 7.5.3.0 - same problem faced
2. Installed CM13- resulting in bootloop if SIM 2 is selected for data
3. Mokee 60.1-release - Same problem as in CM13
All other things are working
Do I have to go to service center or is there any solution like custom Kernel
Please reply ASAP as Redmi 2 Prime is my daily driver as of now
Is IMEI showing ?
Evn I am facing the same problem. Pls help
---------- Post added at 05:10 AM ---------- Previous post was at 04:56 AM ----------
Hollow6 said:
Is IMEI showing ?
Click to expand...
Click to collapse
Yes IMEI is visible
dinkar2468 said:
Evn I am facing the same problem. Pls help
---------- Post added at 05:10 AM ---------- Previous post was at 04:56 AM ----------
Yes IMEI is visible
Click to expand...
Click to collapse
What method did you use to revert/downgrade Back to miui ?
If fastboot then will Say visit the Service Centre
Or if not via Fastboot then Pls , do via That once
Do a Fastboot it solve the issue...
asharkhan said:
Do a Fastboot it solve the issue...
Click to expand...
Click to collapse
Done fastboot, but its of no use. I flashed CM13 again. Now SIM 1 slot is working but if i insert SIM in Slot 2, Its entering bootloop. I tried swapping sims but still bootloop. If I put SIM in slot 1 its working. Also if I am inserting my JIO SIM in slot 1, its entering bootloop.
faced same issue
yesterday i got repaired for INR 230 problem solved
i asked them what u did they told we use online mi tool
i asked it because i flashed fastboot rom but not worked
now am afraid to insert jio sim
am on 7.5.2.0 can i insert the sim
plz any one help
Yeah, Happening with me too. Also when I place a call on VoLTE reboot occurs on custom rom and network disappears of both sim in MIUI. IDK why it is hapenning. I have also tried clean flashing stock MIUI using fastboot but it still happens. Any solution will be appreciated!
Try booting up without any sim cards inserted after flashing any custom ROM. Jio SIM functions properly as long as it is selected as the data SIM. Otherwise it creates a lot of problem. As for ROMs, try RR 5.8.3 or AEX 4.0.
shubhamparekh said:
Yeah, Happening with me too. Also when I place a call on VoLTE reboot occurs on custom rom and network disappears of both sim in MIUI. IDK why it is hapenning. I have also tried clean flashing stock MIUI using fastboot but it still happens. Any solution will be appreciated!
Click to expand...
Click to collapse
It happens with moto g3...i guess other phones face this issue with jio sim...there's no fix for it yet...stick with miui as it only lose network for few seconds instead of rebooting phone...it happens where low network coverage...
CaptainKnox said:
Try booting up without any sim cards inserted after flashing any custom ROM. Jio SIM functions properly as long as it is selected as the data SIM. Otherwise it creates a lot of problem. As for ROMs, try RR 5.8.3 or AEX 4.0.
Click to expand...
Click to collapse
Sure. Will try that sometime later. This is my daily driver as of now.
hi guys... i urgently need help..here is my problem..
im not getting signals on redmi 2 (1gb indian )
i flashed lolipop rom of redmi 2 prime than i installed custom recovery to flash cm14.1
i used that rom for few days
after than
today
i flashed back miui 8 via fastboot (4.4.4)
everything was fine but when i tried to change sim cards
i got no signals
i mean i cant swap sim cards i get this kind of error
and if i use single sim..it works
device id null
and all that error
i checked baseband version . it is showing unknown there .
device name shown is hm2 lte in
.
i tried fastboot method
please suggest
Hi there, You are not alone
I am also Redmi 2 (both 1gb and 2gb ram variant) user. I was using MIUI Kitkat, then switched to Lollipop using fastboot. Later I also used CM14 (Lineage OS - N). Few hours Iater after using it I felt buggy so finally I came back to MIUI 8 (Kitkat).
I also got Baseband unknown error, I will explain how it came and what to do next..
I basically have two Jio sims. so what I did what tried using the mobile (Redmi 2 1GB) with two JIO sims at the same time, I finished the DATA from sim 1 so I tried to swap Mobile DATA from sim 1 to sim 2. And that's it.!!
My Baseband became "UNKNOWN" and phone started to reboot.
How did I fixed this ? :
First of all, I have MIUI Lollipop (LP) Fastboot (FB) Rom as well as MIUI Kitkat (KK) Fastboot Rom (MIUI versions doesn't matter).
Next what I did was, Remove the SIM cards and Memory Card from my phone and Flashed the MIUI LP FB Rom. After successfully getting into MIUI welcome screen, I turned off the phone and again fastbooted it and flashed the MIUI KK rom. Now I dont get Unknown Baseband Error, If suppose you are a Jio user.! For your kind information use the JIO sim only on Sim 1 slot and also do not use two JIO sims like me. Redmi OS hasn't got developed much to switch sims with 4G higher band LTE simultaneously . If you need you can exchange the JIO sims manually by removing the previous sim from Slot 1.
NOTE : I have flashed with "FLASH ALL" option in MiFLash software.
Good luck, I hope my essay like reply will help you.!
ok...let me try this...
If still the problem persists , Here is my Detailed Solution :
ajayNvats said:
ok...let me try this...
Click to expand...
Click to collapse
Kindly try and tell me, If still the problem persists then I'll give another advanced brief solution.
Cause it needs your mobile to be rooted and also needs PC + few softwares to restore your IMEI (Bandbase) :good:
Hi, I've had some issues with SIM cards in my Mi A1.
I've tried rebooting and I've tried both SIM slots, but neither of them are detected. "No SIM card - No Service" shows at the top of the screen. There's nothing wrong with the SIM itself, it works fine in my old phone (a Redmi Note 3) so I'm not sure what to do now. Everything worked fine yesterday and I haven't dropped it, splashed it with water or anything since then.
Any help would be appreciated, thanks
hello brother please imei number check
hey
I'm having the same issue. How do you fixed it?
Thanks
I had this issue too, try restarting the device 2 or 3 times. If it doesn't work, try doing a factory reset.
was anyone able to fix their SIM issue?
my Mi A1 received an OTA update last month and the "SIM card not detected" msg
when I check my Network Settings, the menu options are all greyed out and i can't do anything with it
i've tried flashing many different versions of stock/custom ROMs
i've tried a variety of different SIM providers (Rogers, Koodo, Fido, etc)
i've even flashed a few modem versions to see if it would fix the signal (cuz that's how i used to fix my SGS2)
but nothing works... it's behaving as if there isn't a SIM card inserted at all
...which is leading me to believe that this could be a hardware failure
anyone with suggestions on how i can fix this? cuz otherwise, it's a great device... it runs AOSPExtended like a champ
thanks in advance
Hello everyone. After a lengthy battle, yesterday I finally was able to unlock my bootloader, flash a global rom (via MiFlash) to my Redmi Note 7 and lock the bootloader again using fastboot.
However I've encountered an issue that is very annoying. Every time the phone boots, it fails to read my Sim card, so I'm forced to eject it and then reinsert it in order for it to work properly. I use an SD card and I tend to reboot my phone once or twice a week, so you can get an idea of how much of an inconvenience this is.
I'm pretty sure this must be a software Issue because before the ROM change, I've never had an Issue with this. My phone model is M1901F7H and the rom is Miui global (10.3 Stable 10.3.5.0).
I need to mention that my current carrier (I got the phone from them) disables the hybrid sd card/sim slot and sells the phone with only one working sim slot and a custom ROM. After installing the global rom I noticed that now I can enable/disable the dual 4G connectivity for both sims toggle (it was greyed out before) however that is the only option regarding the dual sim settings that I can interact with and the second slot is still only usable for an Sdcard.
Currently I don't care much about the dual Sim feature, but it has crossed my mind that maybe my current Issue is related to this?
Anyways, thank you for taking your time to read this post and I apologize for the wall of text.
I would be very grateful if someone could help out.
Edit: I forgot to mention that one of my banking apps is now unusable as it crashes over and over again since I've installed the Global Rom. Don't know if it's related to the issue, but it worked just fine beforehand.
Check out my thread.
I'm also on 10.3.5 and think the issue is software related.
After reading your post, I'm thinking we may have something similar going on. My phone is working fine with no problems reading the SIM card after a factory reset a few days ago.
Hopefully you don't end up having the exact same problem I did.
I also have the same problem, I have to take out the SIM every time I reboot, I have the derpfest ROM and so far I have not been able to solve the error.