Database Users

SIMs stopped working.

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.

REDMI 2 Doesn't boot after jio sim insert

I have a redmi 2 8gb variant with model 2014818. I am currently on AOKP MM ROM. I have an Idea sim card as my primary number. I tried putting jio in the second slot and the phone didn't boot. So i swapped their places and my phone didn't boot. Phone shows MI splash and reboots again. The only way that i can get my phone to start is by putting either one of these sims. As soon as a put both, my phone does not start again. What should I do? Should I try another ROM and edit this post in the upcoming days or is there any solution to my problem out there?
NOTE:- My phone is Redmi2 and not Redmi 2 Prime.

Same happened with me, try flashing miui fastboot rom, and follow procedure to flash a custom rom.

Read the post by me.Hope, that will help you.
http://forum.xda-developers.com/redmi-2/how-to/roms-kernels-mods-t3483670
Or try this :-
1)remove both sim. Now insert any other sim than jio in 1sd slot(keep 2nd slot empty) and let it boot(may be there will be some reboot).
2)Now insert jio sim in 1st slot(keep 2nd slot empty) and let it boot.
3)Now insert other sim in 2nd slot(keep 1st slot empty) and let it boot.
4)Now put both sim and let it boot(jio in 1st slot and other sim in 2nd slot).

Blazerstriker said:
I have a redmi 2 8gb variant with model 2014818. I am currently on AOKP MM ROM. I have an Idea sim card as my primary number. I tried putting jio in the second slot and the phone didn't boot. So i swapped their places and my phone didn't boot. Phone shows MI splash and reboots again. The only way that i can get my phone to start is by putting either one of these sims. As soon as a put both, my phone does not start again. What should I do? Should I try another ROM and edit this post in the upcoming days or is there any solution to my problem out there?
NOTE:- My phone is Redmi2 and not Redmi 2 Prime.
Click to expand...
Click to collapse
listen.....i had the same problem, even though i flashed primes lollipop rom it didnt changed anything!!!
but the quick solution -
restore any backup that u took before flashing any rom.
specially the modem and the efs partition.
and plz dont think that its a hardware problem,
i know its not!
if not getting anywhere pm me!

Flashing miui fastboot boot rom worked for me.

spyshrey said:
listen.....i had the same problem, even though i flashed primes lollipop rom it didnt changed anything!!!
but the quick solution -
restore any backup that u took before flashing any rom.
specially the modem and the efs partition.
and plz dont think that its a hardware problem,
i know its not!
if not getting anywhere pm me!
Click to expand...
Click to collapse
still going nowhere and now my fastboot drivers are corrupted!! My pc cant detect device in fastboot mode, but is seen in adb mode. So i cant even flash stock miui to test your method.

just remove both of ur sim and insert jio in sim 1 slot...then go to recovery then wipe and factory reset ur rom and reboot it will work for u if not then wipe everything and flash any stable custom rom ..

well..i have a solution... same happened with me
.
download cm14.1
download cm recovery
download fastboot rom for ur device
flash cm recovery and 14.1 via cm recovery(recommended)
then flash fastboot rom
problem solved for me..hope that works for u as well.
if it works let me know at [email protected]

no signals even after fastboot rom

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:

Network issue after restoring from hard bricked

I have a Asus Max Pro M1 6gb India. Few days back my phone was bricked after doing some research online i made it usable again but the issue now i am facing is of network and poor battery backup on standby.
Suddenly after few days of normal use i restarted the phone for some reason now i cant connect to 4g, this happened earlier as well, i reflash rom using qfil restored IMEI again, phone works fine but again 1 restart after few days i cant get 4g network, 2g and 3g network working fine, also replaced my sim card tried different sim and manual searching.Nothing works.
Is their anything i am missing or i need a 6gb variant QCN backup file and AFT flashable rom, or anythng i can do to fix it.
my phone is not in warranty sp will the service center will help me, also serial no is messed up.
Please help.!

Firmware version? You might want to install latest official firmware from asus too

Vysair said:
Firmware version? You might want to install latest official firmware from asus too
Click to expand...
Click to collapse
my firmware version is 1910.059. latest from asus

beinghuman23 said:
I have a Asus Max Pro M1 6gb India. Few days back my phone was bricked after doing some research online i made it usable again but the issue now i am facing is of network and poor battery backup on standby.
Suddenly after few days of normal use i restarted the phone for some reason now i cant connect to 4g, this happened earlier as well, i reflash rom using qfil restored IMEI again, phone works fine but again 1 restart after few days i cant get 4g network, 2g and 3g network working fine, also replaced my sim card tried different sim and manual searching.Nothing works.
Is their anything i am missing or i need a 6gb variant QCN backup file and AFT flashable rom, or anythng i can do to fix it.
my phone is not in warranty sp will the service center will help me, also serial no is messed up.
Please help.!
Click to expand...
Click to collapse
Try:
1. Download AFT Oreo 340 ROM: https://forum.xda-developers.com/asus-zenfone-max-pro-m1/how-to/how-to-asus-flash-tool-aft-t3923941
2. Extract AFT zip
2.5. Go to Fastboot mode.
3. Install using flash_all.bat from computer (don't use Asus Flash Tool). Bootloader will be locked.
4. Update to stock Pie
5. Unlock bootloader. (Optional)
Sent from my ZenFone Max Pro M1 using XDA Labs

mobile data not working, off, Apn settings are not available for this user(Solved)

I flashed a rom ( Crdroid) and the mobile data was off, sometimes it doesn't detects the SIM till re-inserting it one or more times, then when it's detected, I put it on but when I check, it's turned off, and about the Apn.. it says "Apn settings are not available for this user" thought I can Still add it with the (+), but when I add it, again I check and it disappears, nothing works
i tried to flash another rom(Corvus Os) and it's still the same, I can't neither receive calls or messages, neither call or send messages
Help

JestXII said:
I flashed a rom ( Crdroid) and the mobile data was off, sometimes it doesn't detects the SIM till re-inserting it one or more times, then when it's detected, I put it on but when I check, it's turned off, and about the Apn.. it says "Apn settings are not available for this user" thought I can Still add it with the (+), but when I add it, again I check and it disappears, nothing works
i tried to flash another rom(Corvus Os) and it's still the same, I can't neither receive calls or messages, neither call or send messages
Help
Click to expand...
Click to collapse
U flash the last firmware?
Xiaomi Firmware Updater
The ultimate script that provides firmware packages for Xiaomi devices.
xiaomifirmwareupdater.com
Or an other option is to go back to MIUI with fastboot rom and the steps to a customer rom.

i came back to miui, i Think its the latest versión, but still no getting service, thought i used OrangeFox, its necessary Pc ? i installed the lastest firmware too
but i didnt it on Pc so idk, but now its not even detecting de SIM, atleast in the custom roms it was appering

JestXII said:
i came back to miui, i Think its the latest versión, but still no getting service, thought i used OrangeFox, its necessary Pc ? i installed the lastest firmware too
but i didnt it on Pc so idk, but now its not even detecting de SIM, atleast in the custom roms it was appering
Click to expand...
Click to collapse
Test to flash with mi flash tool the fastboot rom on windows. I think to flash the fastboot rom will help.

Or first https://xiaomifirmwareupdater.com/vendor/lavender/
Or
MIUI 12.3 - 20.12.9/10
Status: RELEASED RULES WHEN POSTING 1. If a ROM is not published DONT ASK ABOUT ITS ETA 2. If a ROM is not published DONT ASK why! 3. If a ROM is available, download it and use it 4. If a ROM has bugs, post the bug to the bug section if the BUG is not already listed 5. If you use any form of...
xiaomi.eu

Good luck I've no ideas more

can u flash via MiFlash the latest MIUI ROM?
On my Galaxy S5 using LineageOS17.1 I had the same problem and I did flashed the StockROM of Galaxy S5 and I got all of the Services back like APN Settings or Mobile Data.
So try reflashing the StockROM

joke19 said:
Or first https://xiaomifirmwareupdater.com/vendor/lavender/
Or
MIUI 12.3 - 20.12.9/10
Status: RELEASED RULES WHEN POSTING 1. If a ROM is not published DONT ASK ABOUT ITS ETA 2. If a ROM is not published DONT ASK why! 3. If a ROM is available, download it and use it 4. If a ROM has bugs, post the bug to the bug section if the BUG is not already listed 5. If you use any form of...
xiaomi.eu
Click to expand...
Click to collapse
Thank you, i will try first that and in a while i will get a pc

kerem._trk said:
can u flash via MiFlash the latest MIUI ROM?
On my Galaxy S5 using LineageOS17.1 I had the same problem and I did flashed the StockROM of Galaxy S5 and I got all of the Services back like APN Settings or Mobile Data.
So try reflashing the StockROM
Click to expand...
Click to collapse
i will get a Pc in some hours, i will answer when i get it thanks for your replies

Okay I hope your problem will be fixed

okay, i'm back i clean flashed the fastboot ROM and nothing changed sadly
While in the starting this happened, it was asking me to insert SIM, it was already in but I reinserted it, and then an error appear "com.android.phone keeps failing"
If you know how can I solve this, please tell me

plus info.. if I insert the SIM 2 or more times, it reboots to the system or the recovery

JestXII said:
plus info.. if I insert the SIM 2 or more times, it reboots to the system or the recovery
Click to expand...
Click to collapse
Maybe your SIM card connector is damaged.
did you put in already a other card or put your main card into another phone.

kerem._trk said:
Maybe your SIM card connector is damaged.
did you put in already a other card or put your main card into another phone.
Click to expand...
Click to collapse
(SIM 1)

I tried another sims but still nothing, and these aren't broken or something, tho I'm seeing that Miui 12 has already the problem about non detecting SIM, Soo.. I'll try Fastboot ROM Miui 11 Android 9

Okay, i solved it, tho im a newbie, there was some videos about how to fix it, the first step is flash the stock rom / not the miui 12 one for me, it has problems with detecting chips in some telecom companies like Claro or Telcel, wich mine was Telcel, so i flashed the fastboot rom ( miui 11 android 9) , and at this point, it wasnt detecting the chip still, but somehow i could recieve calls and everything, but now being in miui 11, the 2nd step is restore de cqn file, im not gonna post it but ill give the video where i got it, but with the programs and all that, you can restore de qcn file via diag, thats all, there some videos about how to pass to miui 12 without these problems but idk, heres the videos
stock rom via fastboot
restore cqn file( no sim detected)
that was all, see ya

.