Database Users

SIM not getting detected after a reboot

I've been using my phone since less than a week and during this time I haven't done anything but installed apps and use them - no rooting, no installing ROMs etc. Today my phone got switched off because of the battery getting discharged completely and after I switched it on, my SIM hasn't been getting detected. I restarted my phone, pulled out the SIM tray and inserted it again, but I still can't get the phone to detect my SIM. I tried *#*#4636#*#* and my IMEI number is shown. I ran it in the safe mode as well, and took the screenshots. Can someone please help me?

@ Mods: I'm sorry I opened this thread before deleting my post here: http://forum.xda-developers.com/showpost.php?p=36838595&postcount=4303 . I wanted to delete my post but I'd already gotten a reply there. Please delete either that post or this thread, if the policy forbids users having a duplicate post.

Facing error in Redmi 2 Prime 20140818

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.

DUAL SIM Bug

Dear all,
because I do not have the permission to post in the right thread, I decided to post my bug for the AOSP N for Jiayu S3 MTK 6752 SoC :
If you insert two SIM cards and you want to deactivate one, the procedure is not working correctly: It is possible to deactivate the SIM card, but after rebooting the phone the sim card is active again -- although the switch is at the "off" position.
Toggeling the switch does not have an effect. Even the airplane mode doesn´t work properly. At CM13 these bugs don´t occur.
Greetings.
TA

dear @theauthlaw, I think if you have read the thread carefully, I am sure there is somewhere written that's it is a know bug and already in the procedure of getting it fixed at the next version of the rom.
Have a nice day
JiaYu S3, Nougat 7.1

No Network

Hi good people, I am facing a problem. Around 8 hours back I tried calling someone but the call didn't connect so I restarted the phone and then I lost the network. I tried reboot, flashed different ROMs (unofficial CM14, cm13 nightly build n MM nougat backup), tried with GAPPS and without GAPPS but the problem is persisting. I even tried swapping the Sim cards before that but of no use. I tried debugging by using *#*#4636#*#* but ping test is failed and also there is "TURN RADIO ON" I believe ideally it should be "TURN RADIO OFF". please have a look at the screenshots. I'm almost dying without making important calls.
Update: Guys I have got it working.. Kindly look into my below posts. Please don't misguide people for small issues.
Thanks

In the screenshot we can also see, GSM SERVICE IS OFF. it stays the same even after clean flashing a new custom ROM.

Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
1. Removed Sim card, switched on airplane mode from both power menu and notification toggle.
2. Restart, inserted Sim card and switched off airplane setting from setting. (Notification toggle and power menu didn't work) then got the network.
Please note I tried with only one sim in sim 1 tray. Later I got the network for 2nd sim as well

Narasimha12 said:
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
Click to expand...
Click to collapse
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?

I've had the same problem for almost a month now... and i gave my phone to the service center. They called up to inform me that its a motherboard failure and they'll fix it.. I'll provide further info when I get my phone back (probably in 3-4 days)
P.S I tried almost every method to make it work. So if you couldn't make it work in first 2 days or so, dont waste your time and just give it for the servicing (make sure its in Stock OS so that they dont ask any questions about root xD )

lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
I flashed almost every latest ROM. But no ROM got the network back. So as a last resort I flashed COS 12.1 and still didn't get the network. Then I removed both the sims, activated flight mode restarted the device, left it couple of minutes and inserted only one sim in first slot. Holla I got the network. Then everything is back to normal
If u r facing the same problem I would suggest u to activate flight mode n restart. If it doesn't work try by removing sim cards, if it still doesn't work try COS 12.1.

lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
Usual procedure of flashing. Wipe cache, dalvik, system and data. Flash ROM + Gapps. Reboot

Try to search in the forum. There is a lot of threads with the same problem with the Zuk Z1. It is a hardware problem.
Enviado desde mi Redmi Note 3 mediante Tapatalk

Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.

psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Please follow xda rules and don't tell people illegal things where they get in trouble. Keep in mind, that's not an illegal forum

Sure thing but I have already mentioned it. I didn't post anything illegal. So, take it easy.

psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hej. I manage to mess upp my baseband/modem proberly when flashing a rom or i messed up in twrp.
Phone show up imei as null and unknown baseband so i would really appriciate you help here.
I still have orginalbox that show my imei so i can enter the correct one when needed.

psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hi, I haven't still gone to the service centre. Kindly pm me the tutorial for getting signals back.

Help does not work dual SIM and does not recognize SIM when restarting.

hello friends I would like to request your help since I acquired my redmi note 7 in TELCEL MEXICO specifically the model M1901F7H but it came preloaded with all the undesirable trash of applications of said company and also it did not recognize the second SIM although in the box of the equipment a second IMEI appeared , so I decided to release the bootloader and proceed to install the global ROM of Xiaomi 10.3.6 the whole process was easy but when reviewing my computer already running the ROM 10.3.6 new I already appears the second IMEI dialing * # 06 # but the second SIM still does not work and also when restarting the device does not recognize the SIM and I have to remove and re-enter the SIM again so that it works every time I restart in advance thank you very much for any help you can provide

First thing: Your post is too messy, there's a button on keyboard called "enter", please use it.
Second thing: You can verify if your IMEIs are legit right here https://www.mi.com/global/shield/#imei_en, try checking if both IMEIs are legit and match the same device you are using.
Third thing: Have you tried the Hardware testing on your device? Just tap kernel version(on about phone tab) a few times to open the menu for testing.
Fourth thing: You flashed the latest global Stable ROM yourself(10.3.6)? That part is not very clear, did both SIMs work before you flashed the ROM?

Gonime said:
First thing: Your post is too messy, there's a button on keyboard called "enter", please use it.
Second thing: You can verify if your IMEIs are legit right here try checking if both IMEIs are legit and match the same device you are using.
Third thing: Have you tried the Hardware testing on your device? Just tap kernel version(on about phone tab) a few times to open the menu for testing.
Fourth thing: You flashed the latest global Stable ROM yourself(10.3.6)? That part is not very clear, did both SIMs work before you flashed the ROM?
Click to expand...
Click to collapse
hello sorry for my way of writing but what happens is that I use Google translator.
1.- I have verified the 2 IMEI numbers that the team gives me when dialing * # 06 # in the page that you mention and they are correct, they belong to the same team, they are also the same ones that appear in the package.
2.- I have applied the test and with 2 sim on the team and gives me error at SIM 2.
3.- if I flashed the stable global ROM 10.3.6 since the team brings a ROM modified by TELCEL which covers the second SIM and the second IMEI.
4.- after flashing the global ROM the computer works very well, it is updated and all the only bad thing is that every time I restart the computer I have to remove and put the SIM tray back so that it grabs the network and the 2 SIM still does not work

josue20rt said:
hello sorry for my way of writing but what happens is that I use Google translator.
1.- I have verified the 2 IMEI numbers that the team gives me when dialing * # 06 # in the page that you mention and they are correct, they belong to the same team, they are also the same ones that appear in the package.
2.- I have applied the test and with 2 sim on the team and gives me error at SIM 2.
3.- if I flashed the stable global ROM 10.3.6 since the team brings a ROM modified by TELCEL which covers the second SIM and the second IMEI.
4.- after flashing the global ROM the computer works very well, it is updated and all the only bad thing is that every time I restart the computer I have to remove and put the SIM tray back so that it grabs the network and the 2 SIM still does not work
Click to expand...
Click to collapse
Any new solutions,Having the same issue

Itayz59 said:
Any new solutions,Having the same issue
Click to expand...
Click to collapse
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 fix the bug, I also have another bus and it is that every so often it Restart but I think it is an error in the room