Database Develop

[Q] going back to 1.518 - no service - IMEI set to 0s

Hi guys,I went back from the newest 4.3 update to 1.518 - to discover that I have no mobile service, even the option to chose my mobile network dissapeared. I've also tried to flash 1.534 and it doesn't work too ;/
It also shows that my imei is all zeroes ! ;/
Any suggestions ?

paniczklos said:
Hi guys,I went back from the newest 4.3 update to 1.518 - to discover that I have no mobile service, even the option to chose my mobile network dissapeared. I've also tried to flash 1.534 and it doesn't work too ;/
It also shows that my imei is all zeroes ! ;/
Any suggestions ?
Click to expand...
Click to collapse
Do you have make a Backup, before?

Try flashing only the baseband from the newer FTF.

sufeng said:
Do you have make a Backup, before?
Click to expand...
Click to collapse
no ;/
Ok I have a solution, but it seems that after going to 4.3 there's no coming back to old firmwares ;/
I've flashed the new .ftf with 4.3 and IMEI showed up !

paniczklos said:
no ;/
Ok I have a solution, but it seems that after going to 4.3 there's no coming back to old firmwares ;/
I've flashed the new .ftf with 4.3 and IMEI showed up !
Click to expand...
Click to collapse
Well at least for rooting and then updating to a pre-rooted 4.3 ROM using recovery for locked bootloaders

paniczklos said:
no ;/
... it seems that after going to 4.3 there's no coming back to old firmwares ...
Click to expand...
Click to collapse
I think this is very bad news ...

I want to back to 518 or 534 version but not for this problem
257 and 290 version have "yellow hue problem for me...

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] Lost network & relocked BL?

Hello,
I've a weird problem with my Xperia SP. Today i wanted to get back to rom based on stock rom to get miracast feature.
I downloaded newest existenz rom and williams kernel for stock based roms. Installation went fine system booted ok and everything worked fine. After some time phone turned off and didn't wanted to start. Only flashmode worked. I've decided to download stock .205 CE1 rom and flash it.
It booted up, sim card was recognized(had to write PIN). After that network was not found. Signal with red "X". I've tried to manually register to network but i could not.
Next thing is that after flashing stock rom fastboot mode stopped working. Service menu shows that Bootloader can not be unlocked even that it was unlocked before and flashtool(BLU option) shows that it is still unlocked. Flashtool also shows Bootloader: NOT_ROOTABLE.
I have actually no idea what have happend. Now i'm installing stock rom using Sony PC Companion but i think this wont help for network problem.
My main network is PLUS GSM(Poland network).
Could sim card die? It is old type card (almost 10 years) and i had to cut it manually to fit micro sim for the phone.
prntscr,com/45wtip (swap ','(comma) with '.'(dot))

KrychoPL said:
Hello,
I've a weird problem with my Xperia SP. Today i wanted to get back to rom based on stock rom to get miracast feature.
I downloaded newest existenz rom and williams kernel for stock based roms. Installation went fine system booted ok and everything worked fine. After some time phone turned off and didn't wanted to start. Only flashmode worked. I've decided to download stock .205 CE1 rom and flash it.
It booted up, sim card was recognized(had to write PIN). After that network was not found. Signal with red "X". I've tried to manually register to network but i could not.
Next thing is that after flashing stock rom fastboot mode stopped working. Service menu shows that Bootloader can not be unlocked even that it was unlocked before and flashtool(BLU option) shows that it is still unlocked. Flashtool also shows Bootloader: NOT_ROOTABLE.
I have actually no idea what have happend. Now i'm installing stock rom using Sony PC Companion but i think this wont help for network problem.
My main network is PLUS GSM(Poland network).
Could sim card die? It is old type card (almost 10 years) and i had to cut it manually to fit micro sim for the phone.
prntscr,com/45wtip (swap ','(comma) with '.'(dot))
Click to expand...
Click to collapse
Use flashtool to flash stock firmware by ftf file. Here:
http://forum.xda-developers.com/showthread.php?t=2311964
Use an older one and if that does not work, try one or two more. Hopefully, that will help. Best of luck!

shahrukhqasim said:
Use flashtool to flash stock firmware by ftf file. Here:
http://forum.xda-developers.com/showthread.php?t=2311964
Use an older one and if that does not work, try one or two more. Hopefully, that will help. Best of luck!
Click to expand...
Click to collapse
Does it matter which country is it for? I can try some of them but i think that won't help. I've checked other sim card and it was recognized but didn't even ask me for pin. Weird Oo.
If nothing helps i will just flash stock firmware with SEUS and let sony service take care of it, hopefully. Phone still has guarantee.

KrychoPL said:
Does it matter which country is it for? I can try some of them but i think that won't help. I've checked other sim card and it was recognized but didn't even ask me for pin. Weird Oo.
If nothing helps i will just flash stock firmware with SEUS and let sony service take care of it, hopefully. Phone still has guarantee.
Click to expand...
Click to collapse
Regions perhaps. But the thing that does not make sense it that that why did it work before and not now? It should work. Anyway, my SIM was mini too. I, too, had to cut it. It works. Or possibly contact your service provider maybe something is wrong with the SIM. They might have have locked it or something?

shahrukhqasim said:
Regions perhaps. But the thing that does not make sense it that that why did it work before and not now? It should work. Anyway, my SIM was mini too. I, too, had to cut it. It works. Or possibly contact your service provider maybe something is wrong with the SIM. They might have have locked it or something?
Click to expand...
Click to collapse
If none sim card works on phone then it is IMEI problem or phone itself somehow. I'm trying to flash other roms now. Hopefully it will help if not then sending to service.

KrychoPL said:
Hello,
I've a weird problem with my Xperia SP. Today i wanted to get back to rom based on stock rom to get miracast feature.
I downloaded newest existenz rom and williams kernel for stock based roms. Installation went fine system booted ok and everything worked fine. After some time phone turned off and didn't wanted to start. Only flashmode worked. I've decided to download stock .205 CE1 rom and flash it.
It booted up, sim card was recognized(had to write PIN). After that network was not found. Signal with red "X". I've tried to manually register to network but i could not.
Next thing is that after flashing stock rom fastboot mode stopped working. Service menu shows that Bootloader can not be unlocked even that it was unlocked before and flashtool(BLU option) shows that it is still unlocked. Flashtool also shows Bootloader: NOT_ROOTABLE.
I have actually no idea what have happend. Now i'm installing stock rom using Sony PC Companion but i think this wont help for network problem.
My main network is PLUS GSM(Poland network).
Could sim card die? It is old type card (almost 10 years) and i had to cut it manually to fit micro sim for the phone.
prntscr,com/45wtip (swap ','(comma) with '.'(dot))
Click to expand...
Click to collapse
i got the exact same problem right now after using william kernel, can you fix it?

Muh_lukman94 said:
i got the exact same problem right now after using william kernel, can you fix it?
Click to expand...
Click to collapse
I've reflashed stock rom using SEUS and sended phone to sony service. Hopefully they can help. Be careful with Williams Kernel for stock roms. This may be a common bug.

For anyone who had the same problem. Sony exchanged my whole phone with information that mainboard was broken. They said that phone could not be fixed.
Good luck
PS. Topic can be closed i think.

KrychoPL said:
For anyone who had the same problem. Sony exchanged my whole phone with information that mainboard was broken. They said that phone could not be fixed.
Good luck
PS. Topic can be closed i think.
Click to expand...
Click to collapse
Where have you been before? I have the same problem after flashing William kernel for stock rom((( What to do now?

Everything i've done is described in the thread. Phone was exchanged by sony after all.

KrychoPL said:
Everything i've done is described in the thread. Phone was exchanged by sony after all.
Click to expand...
Click to collapse
I think i have the same problem, but up till now no one knows the answer, the biggest problem is my warranty is over, i hope someone here can help :crying:
---------- Post added at 07:29 PM ---------- Previous post was at 07:24 PM ----------
KrychoPL said:
Everything i've done is described in the thread. Phone was exchanged by sony after all.
Click to expand...
Click to collapse
I have the same problem here, and the biggest problem is my warranty expired, hope someone here can help..

Muh_lukman94 said:
i got the exact same problem right now after using william kernel, can you fix it?
Click to expand...
Click to collapse
do a restore of Your TA will fix the problem, now my phone can detect SIM card

Help for network unlock after flashing CM11 rom

Hi guys i need your assistance.Here is my problem.Some 7-8 months a go i upgraded from stock 2.3.6 to 4.1.2 and then to 4.4.2 CM11,everything was working just fine (some minor random restarts and incoming call volume issues wasn't a big deal).The phone was locked to my GSM provider network and now i got a network unlock code from them.The problem is very strange,according to instructions i got from them (and all i found on the net ) should be very simple:
1. turn off mobile phone
2. insert different SIM card than accepted one
3. turn on phone
4. you will be asked to enter NETWORK UNLOCK code since it's a different SIM card,enter code and job is done...
BUT..i'm stucked at point 4....i do not get there where i should enter that network unlock code..i am able to read my IMEI,phone number etc. in phone status (noticed IMEI SV is 01 if that matters at all).
I even tried to revert to stock 2.3.6.and 4.1.2 rom and unroot phone it still doesn't help,is there anything else that i can do and i'm missing so far?
Thanks for looking into my problem guys,i really need to solve this issue.
BR

machak10 said:
Hi guys i need your assistance.Here is my problem.Some 7-8 months a go i upgraded from stock 2.3.6 to 4.1.2 and then to 4.4.2 CM11,everything was working just fine (some minor random restarts and incoming call volume issues wasn't a big deal).The phone was locked to my GSM provider network and now i got a network unlock code from them.The problem is very strange,according to instructions i got from them (and all i found on the net ) should be very simple:
1. turn off mobile phone
2. insert different SIM card than accepted one
3. turn on phone
4. you will be asked to enter NETWORK UNLOCK code since it's a different SIM card,enter code and job is done...
BUT..i'm stucked at point 4....i do not get there where i should enter that network unlock code..i am able to read my IMEI,phone number etc. in phone status (noticed IMEI SV is 01 if that matters at all).
I even tried to revert to stock 2.3.6.and 4.1.2 rom and unroot phone it still doesn't help,is there anything else that i can do and i'm missing so far?
Thanks for looking into my problem guys,i really need to solve this issue.
BR
Click to expand...
Click to collapse
Have you tried to flash stock JB firmware and did factory reset? Try to be on full stock, not on any custom ROM.

shut_down said:
Have you tried to flash stock JB firmware and did factory reset? Try to be on full stock, not on any custom ROM.
Click to expand...
Click to collapse
Oh yes,as i said i did a revert to stock 2.3.6 and 4.1.2 too...custom ROM only now with 4.4.2 CM11...i did had a problem flashing from 4.4.2 CM11 to stock 2.3.6 (boot stucked) but that was solved by re-flashing with GT-I9070_I9070DXLD1_CL1068093_8G (3 files)...but bummer..didn't help..what next..?

machak10 said:
Oh yes,as i said i did a revert to stock 2.3.6 and 4.1.2 too...custom ROM only now with 4.4.2 CM11...i did had a problem flashing from 4.4.2 CM11 to stock 2.3.6 (boot stucked) but that was solved by re-flashing with GT-I9070_I9070DXLD1_CL1068093_8G (3 files)...but bummer..didn't help..what next..?
Click to expand...
Click to collapse
Flash Stock JB 4.1.2 firmware with Odin, and take phone to the provider and ask to give you hand with unlocking.

shut_down said:
Flash Stock JB 4.1.2 firmware with Odin, and take phone to the provider and ask to give you hand with unlocking.
Click to expand...
Click to collapse
Well..if no further solutions pop up's that's the last thing i can do i guess....just let me check: flashing back to stock 4.1.2 will not move binary counter (will remove root) and there is no way for them to know that i rooted/flashed phone before ? (warranty is expired 2 months a go but they have a legal obligation to unlock the phone for me...)
Thx for answering anyway..

machak10 said:
Well..if no further solutions pop up's that's the last thing i can do i guess....just let me check: flashing back to stock 4.1.2 will not move binary counter (will remove root) and there is no way for them to know that i rooted/flashed phone before ? (warranty is expired 2 months a go but they have a legal obligation to unlock the phone for me...)
Thx for answering anyway..
Click to expand...
Click to collapse
It will not increase binary counter. Unless you already have it increased before, rooting GB perhaps. Go to download mode and see if it is increased. You can use Triangle Away to undo it, there is free version for XDA members.
P.S. Flashing stock JB firmware and factory reset brings your phone to state like you just bought it. No root, and they can't find out that it was rooted.

shut_down said:
It will not increase binary counter. Unless you already have it increased before, rooting GB perhaps. Go to download mode and see if it is increased. You can use Triangle Away to undo it, there is free version for XDA members.
P.S. Flashing stock JB firmware and factory reset brings your phone to state like you just bought it. No root, and they can't find out that it was rooted.
Click to expand...
Click to collapse
No i haven't rooted stock 2.3.6 GB,just upgraded it to stock 4.1.2 from Samsung site so it shouldn't be problem there..

Xperia (Z1) IMEI Null, Baseband Unknown and Sim is not being detected.

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