Develop Bugs

[Q] Insert SIM Card error

Hi friends,
I need your urgent help as my phone is not working.
Phone is not detecting my SIM. Till night it was working fine but in the morning it was laggy so rebooted. After that it is like this
Here's some additional info :
IMEI is there and correct.
WiFi working (posted it through that)
Baseband version is correct.
I reflashed modem too.
I did a clean install of the ROM but still.
Plz advise !
Esp. to @dr.ketan @ravijani @titooo7 @tamirda
Thanks !

Hi friends,
I need your urgent help as my phone is not working.
Phone is not detecting my SIM. Till night it was working fine but in the morning it was laggy so rebooted. After that it is like this
Here's some additional info :
IMEI is there and correct.
WiFi working (posted it through that)
Baseband version is correct.
I reflashed modem too.
I did a clean install of the ROM but still.
Plz advise !
Esp. to @dr.ketan @ravijani @titooo7 @tamirda
Thanks !
Click to expand...
Click to collapse
Hi, did you manage to find a solution for this problem as I have been unable to resolve a similar issue. My sim error appeared randomly on the latest unrooted stock btu build. I have even replaced the sim reader. Any suggestions would be appreciated.
Thanks.

greetings
i had the same issue, quite frustrating.
I bought my Note2 with broken Display, after i repaired it cut my sim to a mico sim, tried it out and got "No Network". So i replaced my 2 Years old Sim with a new micro-sim and with no luck.
After some error diagnostics i found out that the IMEI was broken, well f**. One month later is repaired the IMEI at some Mobile Service-center and the guy demonstrated that the phone now works. Well ok, i was. At Home i inserted my Sim and it didn't worked. I tried my brother Sim cards (2 old Drei Crads) and they worked, now i was like WTF.
Tested Sim-Cards (all Sim mentioned below are from Austrian Carriers)
T-Moblie (2Years old) => ok
A1 (2Yeas old) => ok
3x 3AT (old Sim Design before 2014) => ok
neu 3AT Sim Card since 2014 => NG
I already replaced the sim but with no luck since my carrier gave me the same new Sim Design.
Today i found the issue, the IC or contacts of the new sim are a little bit dipper molded in the plastic. I put a small piece of paper on top of the sim, so the sim is forced down on the simslot contacts, so far i had no issues. I will report this to my carrier and see what thy gonna say.
Hope dat helps, cheers.
FW: Stock 4.1.1 rooted

My samsung note2 N7100 having a problem it keeps asking to insert sim while it shows network and exact time. Whenever i tried to update it failed. Please help me.

[SOLVED][Q] IMEI and Baseband unknown. I don't have a backup.

[SOLVED] I put my phone in airplane mode and my IMEI/Baseband came back, cheking the service menu I went to *#2263# and saw that "LTE Preference" was enabled. I clicked on Automatic and problem fixed. Probably a ROM bug? Who knows.
Hello there. I've been a reader of the XDA forums for some time but I never had any reason to create an account to post on the forums.
A few weeks ago I got a SGH-M919 as a gift, the phone only had a few months of use and I took it with me, everything worked fine except for the fact that I couldn't get 3G/4G (Not even EDGE), I was only able to connect to the GPRS network and I couldn't change the carrier (It always gave errors like "Unable to connect. Try later" and such). Although the phone is (apparently) quadband (I don't live in the US), it just didn't work but I lived with it.
Yesterday my phone was low on battery and I turned it off, a few hours later I turned it back on and it couldn't connect to the network, I went to the network options and once I pressed the screen to enter the Mobile Network options, I got an alert saying that I must have a SIM to access those option. At first I thought that the SIM got damaged somehow (This isn't the case since it works perfectly fine in another phone) but after a few minutes looking around, I checked the IMEI and instead of the usual number, I got a null/null message. My first reaction was to google what exactly happened and the answer I received was that the Baseband (Which is also Unknown) and IMEI are stored in a folder called EFS and that it got corrupted. Sweet. I looked for solutions but the main two I got (EFS Pro and ADB nvrestore) require a backup of the EFS (Which I don't have).
The other solution I got was to restore to the stock ROM (M919UVUFNH7) which I'm currently downloading from SamMobile (Sorry if this is considered spam). The phone is not rooted and has the stock ROM, it came with a CWM folder inside the internal memory with an .img file but it doesn't have CWM intalled. I've never upgraded it (Not sure if it came with that firmware from the store if it matters).
I live pretty much in what can be considered a "3rd world country". So I cannot send it to Samsung nor I have access to dollars.
Another question is, the phone was gifted to me already unlocked, I don't know if it came unlocked from the original carrier or if it was unlocked via a code or whatever. If I restore to the stock will it lock my phone to T-Mobile again? Would I be able to use it without a SIM card if it gets locked? It's impossible for me to get a T-Mobile SIM on my hands should I ever need one. In the worst case scenario that my phone gets locked, can I get it unlocked by flashing a custom ROM?
I have so many newbie questions that are already answered in other threads, but since it's a lot of information I want to get it as specific as possible to avoid breaking my phone.
If someone can help me with this issue, I'd really appreciate it.

i having same issue in M919

Do you guys get a message in notification bar about sim car removed or something about a sim card? Also, it doesn't matter if the sim card works in another phone. This device has a little issue with being picky with sim cards. If it's a cut sim card, get an original micro sim card

serio22 said:
Do you guys get a message in notification bar about sim car removed or something about a sim card? Also, it doesn't matter if the sim card works in another phone. This device has a little issue with being picky with sim cards. If it's a cut sim card, get an original micro sim card
Click to expand...
Click to collapse
Hi, thanks for answering. I don't get a message about a removed SIM card. I'm also using an original micro SIM.
I already downloaded the Stock ROM but I haven't flashed it yet.

serio22 said:
Do you guys get a message in notification bar about sim car removed or something about a sim card? Also, it doesn't matter if the sim card works in another phone. This device has a little issue with being picky with sim cards. If it's a cut sim card, get an original micro sim card
Click to expand...
Click to collapse
This is a known bug of the s4. It is a hardware problem and I have yet to find a solution. If you google it you will find many threads on different forums addressing this issue. Again, no known solution

Any answer/idea about my issue? . Sometimes I can access Mobile Network Options, sometimes I can't. I can't configure the APNs (They delete themselves after I click on save). Phone Serial Number didn't get deleted (Which is stored inside the EFS folder as far as I know). I also can't select a Network Mode. I click on GSM/WCDMA/LTE but it changes automatically to nothing.

k8108 said:
This is a known bug of the s4. It is a hardware problem and I have yet to find a solution. If you google it you will find many threads on different forums addressing this issue. Again, no known solution
Click to expand...
Click to collapse
That's what I said? One solution is to change sim cards if using a cut sim card to use an original micro sim. It's worked for a friend if someone I know and also for others on XDA. It's not the solution, but works for some
exeichdi said:
Hi, thanks for answering. I don't get a message about a removed SIM card. I'm also using an original micro SIM.
I already downloaded the Stock ROM but I haven't flashed it yet.
Click to expand...
Click to collapse
I would get a new sim anyway if I could. Flashing stock firmware wouldn't hurt as well

serio22 said:
I would get a new sim anyway if I could. Flashing stock firmware wouldn't hurt as well
Click to expand...
Click to collapse
Before trying to flash it, is there any risk of getting simlocked again? I wouldn't want to get my IMEI fixed just to realize that my phone is locked to TMB again
UPDATE 1: My IMEI and Baseband randomly got back (My IMEISV was still missing) but after I restarted, they got deleted again.
UPDATE 2: Rooted, went to EFS, didn't find nv_data.

ASUS ZE551ML no SIM 1 -2

Hello
I own an ASUS Zenfone 2 ZE551ML and after an update to 2.20.40.174 the phone simply wont recognize the SIM card 1 or 2
I have not modified the phone in any way ( at the moment ) just firmware updates from asus no root etc.
could anyone shed some light on what could be wrong ? before the update the pone was working fine
also if someone could help me downgrade ( maybe that is the problem ) will be appreciated
just be patient step by step please I have installed ADB drivers etc
Model: 4GB RAM
Baseband version: 1527_5.050.2_1225,1527_7.0.26.0_1225
Build number: LRX21V.WW-ASUS_Z00A-2.20.40.174_20160310_4150_user
Problem: Phone shows Sim not installed SIM 1 or 2 ( and there is a SIM and it was working without a problem before
How to recreate: Switch on the phone no sim available
Wi-Fi Frequency (if connected): 2.5 GHz / 802.11bg
thanks in advance for your help
Raps

Rapsody10 said:
Hello
I own an ASUS Zenfone 2 ZE551ML and after an update to 2.20.40.174 the phone simply wont recognize the SIM card 1 or 2
I have not modified the phone in any way ( at the moment ) just firmware updates from asus no root etc.
could anyone shed some light on what could be wrong ? before the update the pone was working fine
also if someone could help me downgrade ( maybe that is the problem ) will be appreciated
just be patient step by step please I have installed ADB drivers etc
Model: 4GB RAM
Baseband version: 1527_5.050.2_1225,1527_7.0.26.0_1225
Build number: LRX21V.WW-ASUS_Z00A-2.20.40.174_20160310_4150_user
Problem: Phone shows Sim not installed SIM 1 or 2 ( and there is a SIM and it was working without a problem before
How to recreate: Switch on the phone no sim available
Wi-Fi Frequency (if connected): 2.5 GHz / 802.11bg
thanks in advance for your help
Raps
Click to expand...
Click to collapse
Try reinsert sim card.

I have done that , thank you
the sim cards work fine on any other phones
Raps

Reset factory it would be help

Have done that it doesnt work either
thanks

Rapsody10 said:
Have done that it doesnt work either
thanks
Click to expand...
Click to collapse
Ok
Try dial *#06# and see your imei

Leftrand said:
Ok
Try dial *#06# and see your imei
Click to expand...
Click to collapse
what would be the point to see the imei ?
the phone was bought brand new has not been modified in any way
just suddenly decided not to recognize the sim cards which i tested on other phones and works just fine
thanks tho
Raps

To downgrade you need to have recovery older than currently installed on phone. Flash recovery and adb sideload older firmware. If that doesn't help then read further.
Backup your data if possible then full wipe using twrp (not sdcard or ext-sdcard). To flash twrp you need search here how to.Now flash full .178 rom. Hope it helps.

This problem occurred to me several times in two different ways. The first one was on stock rom without root. It was hardware "failure" and I simply removed the SIM1 card put a little pressure on the upper metal that holds the sim from falling and reinserting the sim card. After several tries it fixed this problem.
The second problem was software failure after upgrading roms. This still happens today and many users have similar problem. I am fixing this problem by doing a full backup, then format /system and /data, and installing a clean ROM and at last recovery.
I think the first solution should help you.
cheers!

No SIM card inserted after unroot and upgrade

As above really. Not really sure if it's a hardware or a software error here. I've read that the sim card readers can be a little fragile but there was no fuss during the removal so I would be surprised if that was the issue. What I'm wondering is if I've missed something when un-rooting my phone.
I was using a custom ROM, all working fine, but I've got a new phone so I decided to unroot my old one to sell on. I flashed my original firmware using the LG Flash Tool. Firmware file is "UK Vodafone 16G D85510A_00.kdz". It all went great as far as I could tell and I started upgrading. The final upgrade was the install of Marshmallow 6.0.
In order to find out if my phone was locked or not I put my Wife's SIM in. Rather than coming up and asking for an unlock code it simply stated that there was no SIM inserted. I thought that was potentially down to the wrong SIM being in but when I tried mine I was met with the same error.
Have I missed something? Did I need to change the baseband or something during the process?
Any help would be greatly appreciated.
Thanks

I've had kinda same problem since a couple of weeks ago...eventually SIM card gets read for a short while and get back to that No SIM card inserted state.
It has happened with any ROM as well as OG FW flashed through LG tool.
I haven't tried another SIM on my G3 but my SIM does work on other cell phones.

sim card.

my vs985 is 1 yr old,rooted,all of a sudden my phone starts this problem with sim card non read..I've kdz,and tot all the way back to 10b,phone works great at10b,then stumproot(xda) and sim cards unreadable,or searching for global reading,it doesn't makeany difference to the setting of global or CDMA etc,after 10 times I still lose sim card when I root,I am on 10b root now however to twrp to jasmine or 47a I lose the sim. I'm staying on 10b root for now as i have no choice,any help is greatly appreciated..

jlb1959.01 said:
my vs985 is 1 yr old,rooted,all of a sudden my phone starts this problem with sim card non read..I've kdz,and tot all the way back to 10b,phone works great at10b,then stumproot(xda) and sim cards unreadable,or searching for global reading,it doesn't makeany difference to the setting of global or CDMA etc,after 10 times I still lose sim card when I root,I am on 10b root now however to twrp to jasmine or 47a I lose the sim. I'm staying on 10b root for now as i have no choice,any help is greatly appreciated..
Click to expand...
Click to collapse
You'll need to flash the 35b bootstack before you flash the ROM for things to work properly on 47a(not sure about jasmine). Read bullet point 5 for a link for the boostack... https://forum.xda-developers.com/ve...t/vs985-46a-stock-flashable-firmware-t3304365

did that.my phone started acting up that my sim was searching for global setting while on 47a for over a year,was giving a suggestion to tot back to stock the start over at 10b,my problem is whether I tot or kdz as soon as I root with stump(from xda site) I get sim non readable and searching for settings.this happens well before I even get to bootstocks,or ROMs.this is while trying to get it rooted on 10b,I've read many people are having a problem with sim cards..obviously tot/kdz gets me to stock with no problem,but trying to get from 10b upgraded is where the sim acts up..

as of now,it works and doesn't work.nothing to do with bootstacks,as I'm on 47a and it didn't work,I rebooted and it did work..then 2hrs later it screwed up again..not sure what it is....

download network settings guru apk and choose bands or *#*#4636#*#*

maybe your problem is something else...
https://forum.xda-developers.com/lg-g3/help/sim-card-t3472164/page3

jlb1959.01 said:
did that.my phone started acting up that my sim was searching for global setting while on 47a for over a year,was giving a suggestion to tot back to stock the start over at 10b,my problem is whether I tot or kdz as soon as I root with stump(from xda site) I get sim non readable and searching for settings...
Click to expand...
Click to collapse
OK...I really need to read more gooder So root is killing your signal somehow. Strange...
Can you grab some logs and post them please? Maybe a log before root when things are working, and one after root with a toggle of airplane mode a couple times to see if it kicks an error into the log and hopefully provide a lil info.
Also, does anything in the "about phone" settings info change after you root/lose service? For ex: unknown baseband, no imei, etc.

yes that's the main problem,I lose ime as well as phone number,and the phone says no sim card,and searching for global setting..if I reboot I may get sim card working but 9 out of 10 times the phone sim is unavailable.example is today,all day the phone worked great,then all of a sudden it lost sim card,no imie,phone number..after pulling battery and rebooting 3 times its working again.I'm on rooted 47a.

+1 For network signal guru, I had to unlock the other bands using that program. It took a few minutes.
It seems that the Verizon variants soft-lock the radio bands.

update this morning,when turning on my phone,it reads sim card searching for global settings,after pulling the battery it reboots and reads sim found,search for settings,global found,and phone works normal??, now if I tot to stock,phone is normal at 10b,then root,twrp etc and sim card will not read,after pulling battery it reads sim searching for global settings,4,5 seconds and phone is OK,then bootstacks,47a and lose sim,then pull battery and go thru the exact same thing,now I've gone to Verizon when sim is unreadable and with a new sim I still get unreadable sim,with no imie,no phone number??...