C6903 non-existent baseband? - Xperia Z1 Q&A, Help & Troubleshooting

Hi All,
I bought a Sony Z1 C6903 in HUNGARY, and refresh in OTA my software (4.4.4 to 5.0.1), BUT my IMEI and other ID's missing (wifi MAC, bluetooth, etc.) now. *#06# show this: IMEI null.
My asset tag show this info:
Model: C6903 14W29 CB5
S/N: BH915NP00D SI 1287-5259
I searched this CDA for days, but nothing... Please somebody help me, I near the madness.
I tried to change the ROMs with Sony Mobile Flash Tool, but nothing usable... again..
Sony PC Companion repair function didn't work for me, still IMEI null.
Thanks all of help!

Hey there,
Have you tried to falsh modem.zip at http://d-h.st/a9X?
Hit thanks if this has worked !!

Related

[Q] IMEI Unknown

I really need your help. Some time ago, I root my device and installed
* eXistenZ v5. It worked for 2 days and nothing happened to my IMEI disappeared.
Worse, I did not backup TA and now only works based ROM GOOGLE edition....
Please I really need help my xperia z turned into a tablet.
One more thing. Factory settings, original firmware stuff simplest I've ever done
English in google translator sorry no speak english.
http://youtu.be/VK5gpyYIvSE
Same Problem
I have same Problem with my Xperia Z . Unknown Baseband & IMEI. No Antenna & sim detecting. I dont have TA partition Backup also.

[Q] Xperia Z Imei and BASEBAND MISSING

Hi guys,
This my first post on the forum,i bought a xperia z on november 2013 and till yesterday it was running fine..but from today suddenly the phone restarted again and again,so i reset the software from backup and restore,but from then the imei number and baseband became missing and the sim card stopped working.i tried repairing via PC companion but no luck.....GUYS PLS HELP ME!! THE PHONE WAS RUNNING ON STOCK FIRWARE 4.3 AND bootloader was locked...IT WAS NOT ROOTED ALSO
Mahim hossain said:
Hi guys,
This my first post on the forum,i bought a xperia z on november 2013 and till yesterday it was running fine..but from today suddenly the phone restarted again and again,so i reset the software from backup and restore,but from then the imei number and baseband became missing and the sim card stopped working.i tried repairing via PC companion but no luck.....GUYS PLS HELP ME!! THE PHONE WAS RUNNING ON STOCK FIRWARE 4.3 AND bootloader was locked...IT WAS NOT ROOTED ALSO
Click to expand...
Click to collapse
Did you try to dial *#06# to check ur IMEI? Try to reflash .ftf file via Flashtool (find the one for ur region).
Sent from my C6603 using XDA Free mobile app

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] Baseband Unknown, Signal Problems - Sony Xperia T LT30p

So I recently Rooted my LT30p and everything seemed fine until I tried to make a call today, no networking signal wherever I go and the baseband version just states - Unknown -
Any fixes out there?
I dont mind wiping my device and setting everything back to unrooted and so on.
This is my first time rooting a phone so I have generally no idea whats gone wrong :/
I used Towelroot to root my LT30p
If you need any other information, let me know please.
Thanks

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

Categories

Resources