Database Develop

IMEI but No Signal, please help!

Hello
I'm new here and I don't know what can I do to fix my phone, please help!
I have a Z1 C6903 from HK and suddenly during a phone call my phone lost signal and now it can't connect to my carrier network.
I tried a factory reset, upgrading with SUS and flashing original HK ftf but still have the issue.
I also tried flashing different ftf files (.290 , .257 , .534(NUT) , .531 , .681 and .757), sometimes I lost my IMEI but I figured out how to recover it, however, I recovered my IMEI but I still have no signal at all.
Could it be physical damage on my phone?
I hope I can fix it with software.
Any ideas?
I don't know what else can I do
Thank you!

you tried many ways, but did you try another sim card, lol?
Sent from my C6903

hxq88 said:
you tried many ways, but did you try another sim card, lol?
Sent from my C6903
Click to expand...
Click to collapse
Lol, yes I tried another sim card and it doesn't work, I also tried my sim card in other phones and works as a charm!
I noticed that this happened to other people and they fix it with SUS or flashing other ftf, I guess I'm not that lucky
Thanks!

After downgrade via flashtool did you try OTA update? Sometimes it's lose imei when flash older firmware, but after OTA update imei will restore. Hope it can help
Sent from my C6903

hxq88 said:
After downgrade via flashtool did you try OTA update? Sometimes it's lose imei when flash older firmware, but after OTA update imei will restore. Hope it can help
Sent from my C6903
Click to expand...
Click to collapse
I'll try that today. Downgrade to .290 and then OTA?
Thanks!

JMove said:
Hello
I'm new here and I don't know what can I do to fix my phone, please help!
I have a Z1 C6903 from HK and suddenly during a phone call my phone lost signal and now it can't connect to my carrier network.
I tried a factory reset, upgrading with SUS and flashing original HK ftf but still have the issue.
I also tried flashing different ftf files (.290 , .257 , .534(NUT) , .531 , .681 and .757), sometimes I lost my IMEI but I figured out how to recover it, however, I recovered my IMEI but I still have no signal at all.
Could it be physical damage on my phone?
I hope I can fix it with software.
Any ideas?
I don't know what else can I do
Thank you!
Click to expand...
Click to collapse
Did You try to manually flash each ROM following the release versions, from the oldest to the newest without skipping any build number (else You won't get signal and IMEI)?

mr.loverlover said:
Did You try to manually flash each ROM following the release versions, from the oldest to the newest without skipping any build number (else You won't get signal and IMEI)?
Click to expand...
Click to collapse
That's not needed and the OP says he does have IMEI so that's not the problem anyway

mr.loverlover said:
Did You try to manually flash each ROM following the release versions, from the oldest to the newest without skipping any build number (else You won't get signal and IMEI)?
Click to expand...
Click to collapse
I flashed stock ftf, I'm not flashing a custom ROM.
Do you mean to flash .518, then 5.34 then .257 then .290 and so on to .757?
Thank!

Yes, I do have IMEI but I don't have signal, it's weird!

I had this problem with my old galaxy note 2
The radio chip most likely broken.
Contact sony for warranty if any left!
Sent from my C6906 using XDA Free mobile app

When I insert my sim it shows my a message that says "SIM card could not be read".
Could the problem be the sim card reader ??
Thanks!

crzygrmn said:
I had this problem with my old galaxy note 2
The radio chip most likely broken.
Contact sony for warranty if any left!
Sent from my C6906 using XDA Free mobile app
Click to expand...
Click to collapse
Hi, I don't think is the radio chip, because I can see my carrier signal using the app Network Signal Info.
And it seems thta is not SIM locked, no X on the left. I don't know what can be the issue

Sorry to dig up this, but have you figured that out?
Were you to get signal again????
If so, what did you do?

hey did you figure it out? i am having the same problem! though it occured after flashing a custom rom. i noticed lost imei but then i recoverd it. now i have tried almost every ftf and even SUS. imei appears but shows no sim card inserted

[Q] HELP SIM CARD Not recognized after flashing rom

Dear XDA I9070 experts I really need some help here.
First I want to apologize if I have some errors, my english is not very good, so sorry about that, I will try to do my best to explain and give the best background information if anyone can help me.
My actual phone is an Motorola Atrix 2, and I have flashed roms several times following the procedures explained on the threads here in this awesome site XDA step by step. So being able to flash roms with no problem at all I tried to do the same on my wifes old Samsung I9070.
I followed a thread that explained how to flash a ROM from GB to Kit Kat for the I9070 step by step here on XDA. The thread is this one:
http://forum.xda-developers.com/showthread.php?t=2198341
It all went fine but being that the phone was not being used by anybody I forgot to insert a SIM CARD before the flashing procedure. I really don't know if that makes a difference, but when the mobile booted the first time after the ROM flashing I inserted my SIM card and to my surprise I didnt recognized it... booted the phone again several times and nothing, but the SIM card is being detected right away on my Motorola.
So I tried to do some research about that and some people suggested to go back to stock firmware, and others told that it was a problem with the EFS folder.
So I tried going back to stock JB with ODIN, but this time with the SIM CARD inserted, and nothing, the same problem. So I tried inspecting the EFS folder and I think that is the problem but I need some advice on this.
The EFS FOLDER has this content:
A bunch of files named CRYPTPROP...
DECRYPT_KEY
ESSIV
GUARDFIL
NV.LOG
NV_DATA.BIN.MD5
And some folders inside... Thats all. I didnt made any backups of the phone or the EFS folder
So I tried using the code *#06# and it gives a valid IMEI 3544******* etc
I really don't know how the phone still shows a valid IMEI with the file NV_DATA.BIN missing, so I checked the phone information and found this:
Inside SETTINGS:
MODEL NUMBER: GT-I9070
ANDROID VERSION: 4.1.2
BASEBAND VERSION: I9070XXLQL
KERNEL VERSION: 3.0.31 - 1485715
BUILD NUMBER: JZO54K.I9070XXLQL
Inside SETTINGS - STATUS:
NETWORK: UNKNOWN
SERVICE STATE: OUT OF SERVICE
MOBILE NETWORK STATE: DISCONNECTED
MY PHONE NUMBER: UNKNOWN
IMEI: 3544******
Maybe the EFS folder is not all bad, I really dont know, please I need some advice here. My motorola screen is dying and I need to recover this one as it is a good phone. Thanks in advance for your help.

v_casas said:
Dear XDA I9070 experts I really need some help here.
First I want to apologize if I have some errors, my english is not very good, so sorry about that, I will try to do my best to explain and give the best background information if anyone can help me.
My actual phone is an Motorola Atrix 2, and I have flashed roms several times following the procedures explained on the threads here in this awesome site XDA step by step. So being able to flash roms with no problem at all I tried to do the same on my wifes old Samsung I9070.
I followed a thread that explained how to flash a ROM from GB to Kit Kat for the I9070 step by step here on XDA. The thread is this one:
http://forum.xda-developers.com/showthread.php?t=2198341
It all went fine but being that the phone was not being used by anybody I forgot to insert a SIM CARD before the flashing procedure. I really don't know if that makes a difference, but when the mobile booted the first time after the ROM flashing I inserted my SIM card and to my surprise I didnt recognized it... booted the phone again several times and nothing, but the SIM card is being detected right away on my Motorola.
So I tried to do some research about that and some people suggested to go back to stock firmware, and others told that it was a problem with the EFS folder.
So I tried going back to stock JB with ODIN, but this time with the SIM CARD inserted, and nothing, the same problem. So I tried inspecting the EFS folder and I think that is the problem but I need some advice on this.
The EFS FOLDER has this content:
A bunch of files named CRYPTPROP...
DECRYPT_KEY
ESSIV
GUARDFIL
NV.LOG
NV_DATA.BIN.MD5
And some folders inside... Thats all. I didnt made any backups of the phone or the EFS folder
So I tried using the code *#06# and it gives a valid IMEI 3544******* etc
I really don't know how the phone still shows a valid IMEI with the file NV_DATA.BIN missing, so I checked the phone information and found this:
Inside SETTINGS:
MODEL NUMBER: GT-I9070
ANDROID VERSION: 4.1.2
BASEBAND VERSION: I9070XXLQL
KERNEL VERSION: 3.0.31 - 1485715
BUILD NUMBER: JZO54K.I9070XXLQL
Inside SETTINGS - STATUS:
NETWORK: UNKNOWN
SERVICE STATE: OUT OF SERVICE
MOBILE NETWORK STATE: DISCONNECTED
MY PHONE NUMBER: UNKNOWN
IMEI: 3544******
Maybe the EFS folder is not all bad, I really dont know, please I need some advice here. My motorola screen is dying and I need to recover this one as it is a good phone. Thanks in advance for your help.
Click to expand...
Click to collapse
Your baseband is not missing, but anyway you can try this: http://forum.xda-developers.com/showthread.php?t=2677807
P.S. And you did factory reset after going from GB to JB?

shut_down said:
Your baseband is not missing, but anyway you can try this: http://forum.xda-developers.com/showthread.php?t=2677807
P.S. And you did factory reset after going from GB to JB?
Click to expand...
Click to collapse
Thank you very much for your help shut_down....
I followed all the steps and still No SIM... Insert SIM card message :crying::crying::crying:
And to answer your question... yes I did factory reset several times... wiped cache, everything... several times after flashing :crying:
Any other suggestions?, I really don't know what else to do... thanks in advance for your help and time.

What JB rom did you flash? Link? Perhaps any Baseband problem ... and where are you from?

Flo0008 said:
What JB rom did you flash? Link? Perhaps any Baseband problem ... and where are you from?
Click to expand...
Click to collapse
Thank you Flo0008 for you help... I used a firmware from Sammobile... this one exactly I9070XXLQL_I9070ITVLQ5_ITV as it was one of the more recent ones.
By the way I'm from Venezuela, but I bought the phone new and unlocked from amazon, the phone is in mint condition and my wife used it for more than a year without any problems, also we use the same carrier... it was not used anymore since December 2013 and recently I charged it for a full battery and did the firmware flashing and since then I'm facing the No SIM card, Insert SIM card message.
Could it be the firmware I selected I9070XXLQL_I9070ITVLQ5_ITV the problem?... It's from Italy... maybe you can recommend using another one.
Thanks in advance!

I had similar situation once when I tried different SIM card. My solution was to put SIM a bit twisted into its bed.
[\] instead of [|].
It took few tries but finally it got detected and working.
Sent from my SGS Adv. using xda-developers app.

most likely your phone was *not* SIM unlocked before you flashed it: I did the same thing to mine and read many similar stories here and there.
I never found a solution and bricked my phone while trying to fix it. I went up to copiing a full ROM dump from another working 9070P: the copy succeded and phone worked (IMEI cloned etc...) but still no SIM card recognized (it was a spare free one so not a problem
If I manage to achieve my unbrick procedure (http://forum.xda-developers.com/showthread.php?t=2701363), we might be able to fix that by reseting the full ROM to a valid state.

Facing the No Sim issues
i am facing the same problem, and it was all of a sudden."No SIM"
I sent the phone to service center, but they failed to repair.
i have tried everything, hard reset, downgrade to GB, upgrading again to JB (via ODIN), custom ROMs, but no luck.
what i figured out is my phone works on some older SIM cards, which have square shaped Chip (like the one in BSNL sim).
any suggestions????

[Q] Imei Null

Hello,
I've been googling for some time now with no luck, my phone shows imei null and I get no signal..
Yesterday I was going from MF3 to NE3 and had no troubles at all except for this at the end.
My brother has this same phone already on NE3.
*I was trying to get it to MTP + ADB and messing around ended up with *#9090# and I think that I accidentially pressed option 1 before updating, phone was still working fine until I did the update.
Please help! Im using a blackberry now.....

AldoBrea said:
Hello,
I've been googling for some time now with no luck, my phone shows imei null and I get no signal..
Yesterday I was going from MF3 to NE3 and had no troubles at all except for this at the end.
My brother has this same phone already on NE3.
*I was trying to get it to MTP + ADB and messing around ended up with *#9090# and I think that I accidentially pressed option 1 before updating, phone was still working fine until I did the update.
Please help! Im using a blackberry now.....
Click to expand...
Click to collapse
I have the same problem , so anyone has a solution?
please help

I solved this flashing the modem through Odin and imei and signal bars came back again
Sent from my SGH-I337 using XDA Free mobile app

Note 3 SM-N900W8 Failed Lollipop Update - Unkown Basebad and IMEI Null

Hi there,
Mind helping me anyone? I ended up having unknown Baseband and IMEI null during failed lollipop upgrade. I tried flashing back to original stock rom both kitkat and lollipop via ODIN but I still got same issues. I ended up rooting the phone and currently running twrp. I'm just at lost right now on what else to do. I tried the EFS Wipe via sideload that didn't work either. There seems to be a lot of people experiencing this. The phone boots up fine except Unknown baseband and IME null and I'm not getting any network connections.
I'm thinking of putting custom ROM but I"m not sure with one will work. I have SM-N900W8 Canadian version Telus
Please help.

amilayajr said:
Hi there,
Mind helping me anyone? I ended up having unknown Baseband and IMEI null during failed lollipop upgrade. I tried flashing back to original stock rom both kitkat and lollipop via ODIN but I still got same issues. I ended up rooting the phone and currently running twrp. I'm just at lost right now on what else to do. I tried the EFS Wipe via sideload that didn't work either. There seems to be a lot of people experiencing this. The phone boots up fine except Unknown baseband and IME null and I'm not getting any network connections.
I'm thinking of putting custom ROM but I"m not sure with one will work. I have SM-N900W8 Canadian version Telus
Please help.
Click to expand...
Click to collapse
Since you have Sm-N900W8 this one seems like it will work
[ROM] [SM-N900W8] {no name ROM_NF1}[Update 24th June] 4.4.2 Note III for CANADA
http://forum.xda-developers.com/showthread.php?t=2725204

Rooted i747 said:
Since you have Sm-N900W8 this one seems like it will work
[ROM] [SM-N900W8] {no name ROM_NF1}[Update 24th June] 4.4.2 Note III for CANADA
http://forum.xda-developers.com/showthread.php?t=2725204
Click to expand...
Click to collapse
Thanks for the help. I guess by flashing this custom ROM the unknown baseband and null IMEI will be fixed? anywhere stated that in the post? what post# was it by any chance? Thanks!

amilayajr said:
Thanks for the help. I guess by flashing this custom ROM the unknown baseband and null IMEI will be fixed? anywhere stated that in the post? what post# was it by any chance? Thanks!
Click to expand...
Click to collapse
He does say it's " There is no baseband in this ROM. So its compatible with any carrier. Make sure u put ur APN in ur network settings." Seen nothing about IMEI. Post 105 http://forum.xda-developers.com/showpost.php?p=53697925&postcount=105

Rooted i747 said:
He does say it's " There is no baseband in this ROM. So its compatible with any carrier. Make sure u put ur APN in ur network settings." Seen nothing about IMEI. Post 105 http://forum.xda-developers.com/showpost.php?p=53697925&postcount=105
Click to expand...
Click to collapse
Well my note 3 right now it has "Unknown Baseband" and IMEI Null. so will this custom rom with no Baseband will fix this?

amilayajr said:
Well my note 3 right now it has "Unknown Baseband" and IMEI Null. so will this custom rom with no Baseband will fix this?
Click to expand...
Click to collapse
It would be up to you to try. Me, I would try. This is from Sammobile site for your phone http://www.sammobile.com/firmwares/download/45029/N900W8VLU2DOC4_N900W8OYADOC4_TLS/ Stock odin file.

GT-9305t NOT REGISTERED ON NETWORK/CORRECT IMEI

HELLO EVERYONE.
i have a samsung i9305T i flashed it wth L.P rom then suddenly
my imei went 0049. i tried anything bUt no luck. so i decided to flash a stock one
4.1.2 my imei was back. But when i try to insert my network sim it says.
NOT REGISTERED ON NETWORK . tho ived used this phone before here in the philippines
so im sure it is unlocked.
any help guys.? thank you in advance does my baseband caused the issue?
please help ...

Hi,
I'm not an expert at all but i have a theory :
I think you get a corrupted EFS. You flashed L.P rom so the format of your EFS changed to V2. So when you tried to return to 4.1.2, the phone can't read your efs anymore.
I think the solution is to flash a newer baseband, for example the L.P baseband or a KK baseband.
Read more about efs format => http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289
Hope it helps.