Xiaomi Mi A1 Simcards and Network issue after flashing stock Rom. - Xiaomi Mi A1 Questions & Answers

Please help me with the simcards and network issues after I flashing April Stock rom on my MI A1, at first the issue is imei 0, then i manage to restore the imei with Qcn restore, but slot 1 simcard keep blinking on and off when i put simcard in it, and slot 2 sim card seems fine, but I need to change the prefered network type to 3g first until the small 3g logo appear above signal bar,then change it to 4g. When reboot the signal totally lost, and it say no service, unless I go to 3g 1st. I've tried flashing another stock rom but it doesn't work, ive tried clear modemst1 and 2 and fsg, but it dont change anything. Anyone please help me.

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REDMI 2 sim card signal problem

hello everyone,,,, i'm new to the XDA. I would like to ask a help with my REDMI 2 phone. My sim card detected but the phine doesn't show signal ( no service ). I use one sim card. I also has been traying some totorial from internet, such as change the sim card posisitio from sim1 to sim2-sim2 to sim1, change with the new sim card, flashing modem ( non-hlos.bin and modem.zip), reflashing the custom rom ( via MIPHONE flash tool, CWM/TWRP and fastboot method, but the problem still there and i don't know any more how to fix it.
is there any body can fix this ??? please help me
did you tried changing the SIM itself to verify that it's not the problem ?
REDMI 2 sim card problem
or some body know how to write setting in the scrypt form on this section ?

No signal after reboot

Hi, I hope there s a hope..)
I got a s4 and the moment I put in the sim card I noticed that it took max 5 min to get the network working. I thought it s not a big deal. Then the wifi was not working with stock and I rooted the phone and started playing with different ROMs. Every time I did a reboot it would take up to 5 min to get the signal, doesn't matter what ROM. 2 days I did a reboot(not the first one on cm12 with alucard kernel) and the phone couldn't get the signal, not after 5 min, not after 3 h. I put the sim in other phones and it worked, I put other sims in my s4 and it worked. When I put my sim in my phone after it had been in another phone it connects right from the start but after 2 min the signal disappears. I changed ROMs, flashed the same ROM, and cm13 and again and no luck. Now the sim is on Huawei p1 and when I get the notification tray down on the bottom it is written 25905 instead for the name of the mobile operator, which is strange. Is there a way to fix this?
Thank you!
Have you considered getting your SIM card replaced?
The carrier should do it for free.
I replaced it before buying the s4. And it also works on other phones.
OP, did U try to flash another MODEM for Ur device? Not some custom ROM, but MODEM? A have some signal troubles, but reflashing MODEM (lastest version for KK) via ODIN fix the problem.
U can find MODEMs and BLs here.
This thread should be in the Q and A section...
I just did and it doesn't work. I went today to their office and got a new sim and it didn't work either. Tried another sim from the same company and it didn't work either. I have no idea what's wrong...((

Axon 7 mini B2017G Australian firmware request

Hi,
I have Axon 7 mini B2017G and I have lost network signal.
This initially happened after updating firmware to EU (to get 7.1.1) I noticed sound not working. So I tried to root phone for TWRP and Lineage but that resulted in IMEI 0 for both IMEI's.
I have since restored both original IMEI but still cannot get signal for more than 30seconds after a full factory reset. Regardless of firmware, rooted or not rooted etc etc.
Seems I have lost important NV data while messing with Modems and restoring IMEI etc.
Can someone please do a full EDL backup with "Axon7_Mini_EDL_Tool" of All partitions (including modemst1, modemst2 fsg) so I can restore baseband configuration, modem partitions etc???
If that isn't an option for someone with the same phone as me, then can you please backup NV items as QCN file so I can try repair my network issue??
The idea i have is to restore ALL partitions from exact same model/version and then restore my original IMEI's in the hopes that I can once again register GSM network and use the phone.
Thank you
Sorted.
sixcherries said:
Hi,
I have Axon 7 mini B2017G and I have lost network signal.
This initially happened after updating firmware to EU (to get 7.1.1) I noticed sound not working. So I tried to root phone for TWRP and Lineage but that resulted in IMEI 0 for both IMEI's.
I have since restored both original IMEI but still cannot get signal for more than 30seconds after a full factory reset. Regardless of firmware, rooted or not rooted etc etc.
Seems I have lost important NV data while messing with Modems and restoring IMEI etc.
Can someone please do a full EDL backup with "Axon7_Mini_EDL_Tool" of All partitions (including modemst1, modemst2 fsg) so I can restore baseband configuration, modem partitions etc???
If that isn't an option for someone with the same phone as me, then can you please backup NV items as QCN file so I can try repair my network issue??
The idea i have is to restore ALL partitions from exact same model/version and then restore my original IMEI's in the hopes that I can once again register GSM network and use the phone.
Thank you
Click to expand...
Click to collapse
same happened to me after messing with network setting, SIM 1 now stuck on LTE mode only which has limited coverage in some areas. SIM 2 is working fine.
I read somewhere that if you downgrade to Marshmallow, it might solve your problem.
I don't know what to do :crying::crying::crying:

SIM not getting detected after lost IMEI

Hello guys.
Recently, my phone's EFS files & IMEI got lost. I managed to "recover" my phone from its unusable state, but my phone refuses to detect the SIM.
My IMEI was 0, but I changed it back to my original IMEI. Yet my SIM still does not work.
The SIM itself works on another phone.
EDIT: It also seems that the SIM is indeed getting detected on my Mi A1, but no mobile network, and messages/calls do not reach me.
For the full story:
I flashed a MIUI 12 GSI (Android 9). Then, wanting to try out an A11 custom ROM, I flashed it, like I usually did.
It took extraordinarily long to load, so I force shut it down (this probably corrupted my EFS and stuff) and from then on no ROMs would work, and TWRP would give me a black screen, and a myriad of other problems
After 2 days of non-stop research, anxiety and magic I managed to "fix" my phone. The SIM was working at some point, but along the process it lost its IMEI, and even though I managed to restore it, the SIM does not get detected at all.
I would appreciate any help at all. Thanks for reading.

Redmi Note 7 stuck on 2g network

Hello, I have problem with my Redmi Note 7. A couple days ago I've changed ROM to Google Experience, but I came back to MIUI after hour, before that everything was alright, but now my phone is stuck on 2g network. I've tried many things from internet but nothing is working. APN settings are right, I tried to change settings in Testing - phone information2 because my sim card is in slot 2, but changing slots or putting in 2 sim cards doesnt work, in settings preffered type of network is set to LTE, on other phone everything is alright, I mean LTE is working, so its not because of my sim card. I dont know what to do... I hope someone will help me
Android: 10
MIUI GLOBAL 12.0.10 STABLE
I have unlocked bootloader and custom recovery Orange Fox Recovery
Mi flashtool and the right fastboot rom maybe help
joke19 said:
Mi flashtool and the right fastboot rom maybe help
Click to expand...
Click to collapse
What rom do you mean exactly?
The right one from this site
Xiaomi Firmware Updater
The ultimate script that provides firmware packages for Xiaomi devices.
xiaomifirmwareupdater.com
When it don't work maybe u have to clean all, but don't relock the bootloader. And after flashing you must reflash the customer recovery

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