Xperia (Z1) IMEI Null, Baseband Unknown and Sim is not being detected. - Xperia Z1 Q&A, Help & Troubleshooting

I Have a Xperia Z1 C6903 run Lollipop 5.1
One day when i switched on the phone , the IMEI was NULL, the baseband was unknown and i was not getting signals from my network provider.
I flashed stock rom but it is still in the same condition
Ive tried many other methods but they also didnt work.
If anyone Knows a fix plz lemme know

Zoom-X said:
I Have a Xperia Z1 C6903 run Lollipop 5.1
One day when i switched on the phone , the IMEI was NULL, the baseband was unknown and i was not getting signals from my network provider.
I flashed stock rom but it is still in the same condition
Ive tried many other methods but they also didnt work.
If anyone Knows a fix plz lemme know
Click to expand...
Click to collapse
i had this problem couple of times, and i just open phone app and try to make a call, then it will detect baseband and get signal
test it

check this http://www.mashinie.com/trick-to-create-sony-stock-ftf-rom.html
flash all files and you might be done !!!!

Imei null , baseband unknown
My mobile was not switching on 3 weeks ago (this happened when my imei was null and baseband was unknown) , so i connected it to my pc and did something and my IMEI came back , baseband too came back everything was working fine.
But yesterday my mobile froze and it was completely not responding , it was not even switching off, so i pressed power and volume up button it switched off, but when i switched it on again, the imei & baseband was gone .
What to do now?

Zoom-X said:
My mobile was not switching on 3 weeks ago (this happened when my imei was null and baseband was unknown) , so i connected it to my pc and did something and my IMEI came back , baseband too came back everything was working fine.
But yesterday my mobile froze and it was completely not responding , it was not even switching off, so i pressed power and volume up button it switched off, but when i switched it on again, the imei & baseband was gone .
What to do now?
Click to expand...
Click to collapse
is your device switching to flashmode ?
if it goes in flash mode then follow this steps
download pc companion and install it,then open it and click on start in support zone section, then select repair my phone
Then select your device and download the original firmware, then after downloading the original files ....minimize pc companion and download flashtool from here dl-developer.sonymobile.com/tools/Flash_tool_for_Xperia_7.zip now install flashtool and drivers (drivers will be in flashtool folder in c drive) now open my computer and navigate to here C:\ProgramData\Sony Mobile\Update Engine\localstorage\13740270
now make a ftf file of this (how to make ftf file https://talk.sonymobile.com/t5/Xperia-mini-pro/How-to-get-ftf-ROM-from-PC-companion-update/td-p/178996)
now flash that ftf in flashmode
if helped give a thanks

xperia z1
I had the same problem and occurred when I mistakenly installed rom for 6903 to 6902 , did not recognize the phone sim card , wireless did not work , the IMEI number is not showing.
error in the software

gile78-gaga89 said:
I had the same problem and occurred when I mistakenly installed rom for 6903 to 6902 , did not recognize the phone sim card , wireless did not work , the IMEI number is not showing.
error in the software
Click to expand...
Click to collapse
i reinstalled the correct firmware , but still
also , Everything was working fine , but one day the mobile froze and when i rebooted it, everything gone

Related

help? personally I Guess My milestone is Finished

so yesterday i had put my phone on the charger ......then when i went back i was greated with a black screen .so i removed the battery and powered it back on and now my phone has no network no IMEI ...flashed a nardroid of the stock Rom and still No IMEI number ,No network .any help?
EDIT it works fine but it shows my IMEI no as unknown and theres no network no matter whatever I do .Changing baseband also dosent help
Maybe you could try to flash a sbf.-file to get completely back to stock. You just flashed a nandroid backup, so your phone is still rooted. Maybe this can help ...

[Q] xperia zr baseband unknown no wifi and cellular service

everything was working fine on my xperia zr(c5502) until one day when for the first time the phone had its battery completely exhausted somehow the cellular service was lost and the phone got locked by mcafee internet security and was always asking for the pin at the start.even after entering the correct password it would just get stuck at this part and would never unlock.so i flashed the stock firmware 4.2.2.it was so unstable and was rebooting continously so i flashed the its first stock firmware 4.1.2 which removed the lock and reboot problems but the baseband is now unknown and no imei too and so no cell service and wifi isnt working.i am currently trying to flash the different firmware files and the baseband files of c5502 and c5503 to see if the baseband gets updated.before this problem started,i had never rooted the phone nor unlocked the bootloader or do anything of this sort.somebody please tell me what to do .has anyone xperienced this same error or baseband unknown error for zr???? :crying:
ajgo333 said:
everything was working fine on my xperia zr(c5502) until one day when for the first time the phone had its battery completely exhausted somehow the cellular service was lost and the phone got locked by mcafee internet security and was always asking for the pin at the start.even after entering the correct password it would just get stuck at this part and would never unlock.so i flashed the stock firmware 4.2.2.it was so unstable and was rebooting continously so i flashed the its first stock firmware 4.1.2 which removed the lock and reboot problems but the baseband is now unknown and no imei too and so no cell service and wifi isnt working.i am currently trying to flash the different firmware files and the baseband files of c5502 and c5503 to see if the baseband gets updated.before this problem started,i had never rooted the phone nor unlocked the bootloader or do anything of this sort.somebody please tell me what to do .has anyone xperienced this same error or baseband unknown error for zr???? :crying:
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2560677
Lasantha said:
http://forum.xda-developers.com/showthread.php?t=2560677
Click to expand...
Click to collapse
he has not got a working solution for this..what am i supposed to do.please help????
ajgo333 said:
he has not got a working solution for this..what am i supposed to do.please help????
Click to expand...
Click to collapse
just reflash fw bro everything will fixed.
stupid me... caught this...
how i resolved it... (im using cm/fxp btw)
- make nandroid backup
- wipe
- reboot
- baseband comes back
- reboot into recovery
- advanced recovery with "data" only
- reboot
- done.
i have this problem too.
i'm on stock 4.1.2 with no baseband,imei and signal.
bootloader is locked.
i test many stock and custom roms. but not solved.
any way to repair it?
l0000l said:
i have this problem too.
i'm on stock 4.1.2 with no baseband,imei and signal.
bootloader is locked.
i test many stock and custom roms. but not solved.
any way to repair it?
Click to expand...
Click to collapse
repair centre?
nostupidthing said:
repair centre?
Click to expand...
Click to collapse
no professional repair center near me to repair it.

[Q] NO REGISTERING ON THE NETWORK NO SERVICE Galaxy s3 mini I8190n

Hello everyone. I bought a samsung galaxy s3 mini version nfc i8190n when lam bought the phone had a problem with GSM and HSDPA network. Do not want to register with any sim card network in any network. The phone has IMEI and modem good. When searching network manually, your phone finds them when I select a network does not register on the network. The phone came with android 4.1.2 baseband version i8190NXXALL6 Number
i8190NXXALL6 CSC: KOR. Before I get to work I saved the foders "efs" and "modemfs". For five days I struggle with it and we did and at the moment I'm stuck and ask for help.
Here are the steps that I did:
1. I changed csc from "kor" in "btu"
2. I rewrote the software with odin. Same i8190NXXALL6 Stock firmware samsung.
3. I installed CWM Recovery and I Flash all versions of this model,modem.
4. I installed custom ROMs, I returned to stock ROMs
5. I installed the stock recovery with odin and he appeared in DOWNLOAD MODE "custom binary download"=yes 2 times;"System Status"=custom;"current binary"=custom. I used the TriangleAWay and I brought "custom binary download=No. I8190NXXALL6 I reinstalled the stock rom via odin with repartition then full erease on the phone Cahe,Data,etc.and returned to" Custom Binay "= No Current Binay = Official Samsung, System status = Officia.Updates software and firmware from samsung works after many writings kind CWM unofficial ROMs, etc.
6. After each writing ROMs I rooted the phone and replaced the file "modemfs" nv.dat file. I downloaded from the XDA forum several files of other users Nv.dat i8190N this model, we have replaced each other and nothing.
7. I deleted all files in EFS folder and modemfs after deletion had baseband XXXXX. IMEI number has remained untouched.
8. I wrote modem manually via CWM recovery and nothing same problem.
I did have searched all the forum and other forums, I searched on google and do not know what to do. My phone is now rooted in the stock rom, stock kernel, stock recovery. These are details which are:
DEVICE INFORMATION FOR Samsung Galaxy S3 Mini
----------------------------------------------
Device Product Model: GT-I8190N
Firmware Build : 4.1.2
Firmware Build ID : JZO54K
Firmware Build PDA : I8190NXXAMJ2
Firmware Region Code: BTU
---------------------------------------------------
Waiting any kind of suggestion and let's solve this problem there are many people who have the same problem ......
You need this modem files
You need a file named NV.DAT, it's missing from your /modemfs/PERM/PROT
from: http://forum.xda-developers.com/showpost.php?p=42562414&postcount=19
pandu007 said:
You need a file named NV.DAT, it's missing from your /modemfs/PERM/PROT
from: http://forum.xda-developers.com/showpost.php?p=42562414&postcount=19
Click to expand...
Click to collapse
I replace before this file and nothing the same problem. Thanks for reply.
joker79 said:
Hello everyone. I bought a samsung galaxy s3 mini version nfc i8190n when lam bought the phone had a problem with GSM and HSDPA network. Do not want to register with any sim card network in any network. The phone has IMEI and modem good. When searching network manually, your phone finds them when I select a network does not register on the network. The phone came with android 4.1.2 baseband version i8190NXXALL6 Number
i8190NXXALL6 CSC: KOR. Before I get to work I saved the foders "efs" and "modemfs". For five days I struggle with it and we did and at the moment I'm stuck and ask for help.
Here are the steps that I did:
1. I changed csc from "kor" in "btu"
2. I rewrote the software with odin. Same i8190NXXALL6 Stock firmware samsung.
3. I installed CWM Recovery and I Fla**** all versions of this model modem.
4. I installed custom ROMs, I returned to stock ROMs
5. I installed the stock recovery with odin and he appeared in DOWNLOAD MODE "custom binary download"=yes 2 times;"System Status"=custom;"current binary"=custom. I used the TriangleAWay and I brought "custom binary download=No. I8190NXXALL6 I reinstalled the stock rom via odin with repartition then full erease on the phone Cahe,Data,etc.and returned to" Custom Binay "= No Current Binay = Official Samsung, System status = Officia.Updates software and firmware from samsung works after many writings kind CWM unofficial ROMs, etc.
6. After each writing ROMs I rooted the phone and replaced the file "modemfs" nv.dat file. I downloaded from the XDA forum several files of other users Nv.dat i8190N this model, we have replaced each other and nothing.
7. I deleted all files in EFS folder and modemfs after deletion had baseband XXXXX. IMEI number has remained untouched.
8. I wrote modem manually via CWM recovery and nothing same problem.
I did have searched all the forum and other forums, I searched on google and do not know what to do. My phone is now rooted in the stock rom, stock kernel, stock recovery. These are details which are:
DEVICE INFORMATION FOR Samsung Galaxy S3 Mini
----------------------------------------------
Device Product Model: GT-I8190N
Firmware Build : 4.1.2
Firmware Build ID : JZO54K
Firmware Build PDA : I8190NXXAMJ2
Firmware Region Code: BTU
---------------------------------------------------
Waiting any kind of suggestion and let's solve this problem there are many people who have the same problem ......
Click to expand...
Click to collapse
Er ask an samsung center bout it?
AssToast said:
Er ask an samsung center bout it?
Click to expand...
Click to collapse
No. The phone is fuul working, except no register in network, with out registering on the network i can`t do make calls receive calls sms e.t.c
joker79 said:
No. The phone is fuul working, except no register in network, with out registering on the network i can`t do make calls receive calls sms e.t.c
Click to expand...
Click to collapse
Yes i know but why would you purposely modify the modems and other stuffs, you should have brought it to your network provider service center or samsung and ask them about it, it could just be an SIM card problem
thanks for reply
AssToast said:
Yes i know but why would you purposely modify the modems and other stuffs, you should have brought it to your network provider service center or samsung and ask them about it, it could just be an SIM card problem
Click to expand...
Click to collapse
No. Is not sim problem issues becouse i test with a nother sim card`s of diferent carriers. Wen i put a nother sim card in apn setings are the setings for the carrier sim wat ai put,wen i cheange the sim with a nother carrier in the apn setings are the setings of the carrier sim card wat i m put. So for exemple i have 3 sim card`s of diferent carriers and all the sim`s card have pin security cod and the phone ask me for pin, after insert the pin code with all sim card`s don`t register on the netowork but the apn setings of the carrier automatic are there on the setings,so the phone see the sim card for all carriers, in setings wen a search manualy for the netorks the phone see the netowork wen i select the netowork manualy not register on the network,if i select automatic sey "registering on netowrk" but is not becouse if i want to call i can`t "not registering on network" sorry for my english ((
Try NV rebuild
joker79 said:
I replace before this file and nothing the same problem. Thanks for reply.
Click to expand...
Click to collapse
ok.. sorry about that. Find 'NV Rebuild' option from *#197328640# Service Mode and try rebuild it..
pandu007 said:
ok.. sorry about that. Find 'NV Rebuild' option from *#197328640# Service Mode and try rebuild it..
Click to expand...
Click to collapse
I do and this thing and nothing in service mode i rebuild the "NV" on *#0011# service mode info i have: gsm idle,hsdpa idle, service: limited. Here is the problem way the service is not aviable?
reflash efs
joker79 said:
I do and this thing and nothing in service mode i rebuild the "NV" on *#0011# service mode info i have: gsm idle,hsdpa idle, service: limited. Here is the problem way the service is not aviable?
Click to expand...
Click to collapse
hmm.. as the last solution - search "gsmhosting efs backup request" on google ( ai not able to paste external links here). You will find the backup efs folder from a working sgs3 mini i8190 phone. Flash it to your phone (first keep a backup of yopur own efs before doing this ... just in case)
all the best !
pandu007 said:
hmm.. as the last solution - search "gsmhosting efs backup request" on google ( ai not able to paste external links here). You will find the backup efs folder from a working sgs3 mini i8190 phone. Flash it to your phone (first keep a backup of yopur own efs before doing this ... just in case)
all the best !
Click to expand...
Click to collapse
I find but i need z3x box and i dont have thanks for the sugestion. I thing must be and another way.
joker79 said:
I find but i need z3x box and i dont have thanks for the sugestion. I thing must be and another way.
Click to expand...
Click to collapse
Were you able to resolve the problem? Please post solution for benefit of others.
:good:
I don`t have one
pandu007 said:
Were you able to resolve the problem? Please post solution for benefit of others.
:good:
Click to expand...
Click to collapse
My phone is bricked at this moment. Partition on the phone are mess up. One guy from the Mobile Phones Center brick the phone and my phone is in this stage righ now :http://forum.xda-developers.com/showthread.php?t=2657862 . Wen i have news and solution i post heare. Good day All.
I got the same problem with my phone, it just stopped registering on networks, tried any sim that was available in my country and nothing worked! If you find any solution please update!
Any updates???
Searched and searched... Had a good rooted stock rom, then tried something new a few days ago. I seem to have messed up the modem/bandband. Some issues as the original post. Re-flashed different roms, stock, rooted, unrooted, custom. Tried various different baseband updates. Everything works except being unable to register to the network. IMEI has not changed or been overwritten.
Any help would be gladly accepted.
i8190n
I have the exact same problem. I'm on Orange (EE). Yesterday morning my phone was registered on the network fine, I was in a poor signal area but still on 3G. Then I roamed across the south west of Britain and noticed my phone has no signal. It just wont register on any network, even EE. If I select automatic, it says it registers but it gets no signal and when I try to make a call. It says not registered on network!
The phone is totally stock. My sim works in another phone. I've done a factory reset but the problem still exists.
Was thinking about flashing the ROM but if others have been there too with no fix then I won't waste my time. I keep thinking EE have pushed something to my phone to block access as I'm out of contract by three months and they want me to upgrade!!

[Q] Need Help !! My C6602 often dead

Hi sir, I need your help.
this problem I guess starting when I tried to change my network mode through xposed (FYI: in my country ID doesn't fully support LTE yet, but I try enable all network type) then my phone automatically set to LTE mode and suddenly got turn off when I unlock screen. at the moment I realize that my C6602 isn't LTE
FYI I tried to solve it, here is I've tried:
-Flash stock FTF
-Restore NANDROID but failed (CWM error while restore /system, I've regenerating md5 and it's fine)
-Relock BL
-Remove SDCard
-Remove SIMCard
few main problems:
-when I discharging, sometimes it work normally (didn't turn off) except if I setting my clock time, open camera, and few apps it's suddenly turn off
-however if I tried turn on my phone, it's stuck at sony logo then turn off again and I can't turn it on except if my phone charging it's can boot perfectly
-when I succeed use my phone (with charging attached) then I check network mode there's LTE mode !! how can I fix this network mode? I desire like before (WCDMA preferred/GSM, there's no LTE mode)
so sorry if this thread similar with others but I'm already search and surfing any thread it no result
------------------------------------------------------------------
now my phone on stock 4.3 / LB / without root
anyone alse can help me :/ thanks
ryandxter said:
anyone alse can help me :/ thanks[/QU
which country or carrier is the phone from? make sure you download and flash the appropriate ftf that is only for c6603. flash it with flashtool and it should boot up nicely. if you are having troubles on 4.3 ftf, then possbile try the lower version (4.2.2 or 4.1.2) and then connect it with pc suite and update from there
Click to expand...
Click to collapse
tanny0543 said:
which country or carrier is the phone from? make sure you download and flash the appropriate ftf that is only for c6603. flash it with flashtool and it should boot up nicely. if you are having troubles on 4.3 ftf, then possbile try the lower version (4.2.2 or 4.1.2) and then connect it with pc suite and update from there
Click to expand...
Click to collapse
my county is ID, but I usually using FTF 4.3 SG (singapore) region before and it's works fine
I've already tried using lower version 4.2.2 SG too but still none works
correction
my device is 6602

[Q] LG 4x p880 IMEI null sim card problem

Hi folks, I have problem with my LG optimus 4x p880 phone. Today phone doesnt read sim card. I discovered that when i asked my imei number via *#06#, it said "null". So my phone cannot connect the operator. How can I fix imei null problem? Thanks :good:
none knows?
I had the same problem...
In my case, as far as i can tell is hardware related.
At first I thought it as a bad flash, so i tried (after reading every possible threads) to flash a stock kdz.
I cant flash the kdz, because stucked in 10% (error 207).
So i opened the phone, checked if the connections were ok.
Didn't work... Still stucked in 10%.
So i used brute force, and start to press the phone very hard near the edges, near the the sim. Magically the lg flash tool pass the 10% and flashed the stock rom.
But the null imei and baseband persisted.
I tried once again the brute force and it works, but i cant turn off or reset the phone, because the baseband and the imei return to unknown
The connection take some time to occur.
Hope that can help.
sergiohinniger said:
I had the same problem...
In my case, as far as i can tell is hardware related.
At first I thought it as a bad flash, so i tried (after reading every possible threads) to flash a stock kdz.
I cant flash the kdz, because stucked in 10% (error 207).
So i opened the phone, checked if the connections were ok.
Didn't work... Still stucked in 10%.
So i used brute force, and start to press the phone very hard near the edges, near the the sim. Magically the lg flash tool pass the 10% and flashed the stock rom.
But the null imei and baseband persisted.
I tried once again the brute force and it works, but i cant turn off or reset the phone, because the baseband and the imei return to unknown
The connection take some time to occur.
Hope that can help.
Click to expand...
Click to collapse
Does it work everytime you press the phone? When do you start to press exactly? (e.g. during start up?)
What 's the exact location to press?
dannychow said:
Does it work everytime you press the phone? When do you start to press exactly? (e.g. during start up?)
What 's the exact location to press?
Click to expand...
Click to collapse
Not every time, but work 1 in 5 times. With the phone off i remove the back cover and start pressing near the edges, and near the SIM, then i turn on the phone still pressing. I keep pressing until the phone signal appears. Normally i wait 5 minutes, because sometimes when the phone starts the baseband is still unknown, but then, like magic the signal returns and the baseband and imei appears.
However, when i turn off/restart the phone the issue returns. (very annoying). Hope it works with you.
Need Help "LOST IMEI and Baseband Unkonwn"
I was using Euporia 5.0.1 on LG 4x
I received update notification and I downloaded Update.zip ( which included to 5.1)
By mistake i flashed the zip directly from CWM ( without Formatting any partition )
after restarting there was no IMEI
Following things I have tried
1) Trying to flash Original V20C KDZ. via LG Flash Tool. ( I think it checks for IMEI , and that's why stuck in between)
2) Use LG Software Update tool. ( also can't progress with IMEI)
3) Flashed Original V20c Flashable zip from CWM (But it didn't restored my IMEI)
4) Contacted LG Service Center, and They say You need to change whole Motherboard. ( I was Shocked to know that )
:crying:
If anybody went to same problem. and resolved .
Please Guide me.

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