Database Develop

[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.

HELP: Upgraded from stock 4.2.2 to 4.4 and lost network connectivity

Hello All,
Tried searching for a case peculiar as mine, wasnt able to find one so here is the lowdown.
1. Xperia C6603 , originally had 4.2.2 stock ROM which was working fine with my local network. Dont remember the baseband version.
2. Used XperiFirm to download the latest firmware as reported in the list. Dont know what does the suffix RxD (R1D--R8D) means. Anyone please explain. As per the below screenshot downloaded version "C6603_Customized HK_1270-5695_10.5.1.A.0.292_R1D" .
3. Before flashing the downloaded firmware I flashed the dualrecovery from XZDualRecovery. I made a TWRP backup of the 4.2.2 stock ROM on an external SD card, for all partitions including TA,system,boot etc.
4. Used Flashtool to convert the downloaded (step 2) firmware "FILES" format to a flashable FTF file. Flashed the firmware , which went on smoothly.
5. At the first startup I got the following screen , telling me that it is a prototype device/firmware . I went on to see that the network which was working fine with stock ROM 4.2.2 was no longer available.
I tried to go to settings to check and search for networks, which shows available networks, but unable to get itself registered to the SIM providers network. Tried all the settings combinations in menu "*#*#4636*#*#" , nothing makes it work to get the GSM network connectivity back. It is supposedly on the correct setting of LTE/WCDMA/GSM which my current operator supports. Following is the "About" screen for current baseband version.
Tried going in the "Service" menu via "*#*#7378423#*#*" , with the following info, having an unknown modem configuration.
6. Tried reverting back to the old TWRP backup, for which I needed the TWRP recovery loaded on the phone. So ran the XZDualRecovery script again (with the new 4.4 ROM on the phone), however the script hangs around in the end and never reboots the phone with the TWRP recovery. So i am unable to revert and use the stock ROM backups .
7. I dont want to root/unlock the bootloader, however I tried installing TWRP via its "XZrecovery.apk", but it requires busybox (which requires a rooted phone). So i tried the rooting script from [GUIDE] How to root 10.5.1.A.0.283 / 10.5.1.A.0.292 [Locked Bootloader], but it also hangs around in the end and never delivers a rooted phone.
8. Tried looking around for assortment of xperia Z baseband files to check and see if flashing it separately can make it work, however to no avail the the condition persists.
Either ways having a prototype version on the phone which transmits all data back to sony is not desirable at all. So need to replace it for sure. Currently I am stuck in the middle without a clue of how to go back and restore the 4.2.2 TWRP backup, or to actually flash a "non-prototype" or retail version of 4.4.x .
Any help/guidance/suggestions to remedy would be appreciated.
Thanks.
=====================UPDATE
Ok followed the instructions at [GUIDE] How to root 10.5.1.A.0.283 / 10.5.1.A.0.292 [Locked Bootloader] , read carefully again to flash the .230 kernel. Flashed the XZDualRecovery and got the TWRP recovery back.
Restored the old 4.2.2 TWRP backup , hoping that everything would go back to normal. However with a successul restore and a reboot, I was amazed to see I still have no network connectivity. The baseband version is "9x15A-ACEFWMAZQ-30110068-44" . Another noticeable thing was that after the restore and first boot, I still got the "prototype device" message again, which was not there when I first booted the device with original stock 4.2.2 ROM before this flashing adventure began.
Any ideas what may have gone bad.
Thanks.
=======================================
Just got to know that my device is a BROWN device, its IMEI number starts from 0044 so it is a prototype. Any ideas is it really good or bad to have one. Also I see that after another restore of the original stock 4.2.2 ROM it is barely getting the signals indoor (1 bar only). The signal reception is very weak and sporadic . Should i keep the device or not and is there any remedy or network signal strength.
Thanks.

HyperEscape said:
Hello All,
Tried searching for a case peculiar as mine, wasnt able to find one so here is the lowdown.
1. Xperia C6603 , originally had 4.2.2 stock ROM which was working fine with my local network. Dont remember the baseband version.
2. Used XperiFirm to download the latest firmware as reported in the list. Dont know what does the suffix RxD (R1D--R8D) means. Anyone please explain. As per the below screenshot downloaded version "C6603_Customized HK_1270-5695_10.5.1.A.0.292_R1D" .
3. Before flashing the downloaded firmware I flashed the dualrecovery from XZDualRecovery. I made a TWRP backup of the 4.2.2 stock ROM on an external SD card, for all partitions including TA,system,boot etc.
4. Used Flashtool to convert the downloaded (step 2) firmware "FILES" format to a flashable FTF file. Flashed the firmware , which went on smoothly.
5. At the first startup I got the following screen , telling me that it is a prototype device/firmware . I went on to see that the network which was working fine with stock ROM 4.2.2 was no longer available.
I tried to go to settings to check and search for networks, which shows available networks, but unable to get itself registered to the SIM providers network. Tried all the settings combinations in menu "*#*#4636*#*#" , nothing makes it work to get the GSM network connectivity back. It is supposedly on the correct setting of LTE/WCDMA/GSM which my current operator supports. Following is the "About" screen for current baseband version.
Tried going in the "Service" menu via "*#*#7378423#*#*" , with the following info, having an unknown modem configuration.
6. Tried reverting back to the old TWRP backup, for which I needed the TWRP recovery loaded on the phone. So ran the XZDualRecovery script again (with the new 4.4 ROM on the phone), however the script hangs around in the end and never reboots the phone with the TWRP recovery. So i am unable to revert and use the stock ROM backups .
7. I dont want to root/unlock the bootloader, however I tried installing TWRP via its "XZrecovery.apk", but it requires busybox (which requires a rooted phone). So i tried the rooting script from [GUIDE] How to root 10.5.1.A.0.283 / 10.5.1.A.0.292 [Locked Bootloader], but it also hangs around in the end and never delivers a rooted phone.
8. Tried looking around for assortment of xperia Z baseband files to check and see if flashing it separately can make it work, however to no avail the the condition persists.
Either ways having a prototype version on the phone which transmits all data back to sony is not desirable at all. So need to replace it for sure. Currently I am stuck in the middle without a clue of how to go back and restore the 4.2.2 TWRP backup, or to actually flash a "non-prototype" or retail version of 4.4.x .
Any help/guidance/suggestions to remedy would be appreciated.
Thanks.
=====================UPDATE
Ok followed the instructions at [GUIDE] How to root 10.5.1.A.0.283 / 10.5.1.A.0.292 [Locked Bootloader] , read carefully again to flash the .230 kernel. Flashed the XZDualRecovery and got the TWRP recovery back.
Restored the old 4.2.2 TWRP backup , hoping that everything would go back to normal. However with a successul restore and a reboot, I was amazed to see I still have no network connectivity. The baseband version is "9x15A-ACEFWMAZQ-30110068-44" . Another noticeable thing was that after the restore and first boot, I still got the "prototype device" message again, which was not there when I first booted the device with original stock 4.2.2 ROM before this flashing adventure began.
Any ideas what may have gone bad.
Thanks.
=======================================
Just got to know that my device is a BROWN device, its IMEI number starts from 0044 so it is a prototype. Any ideas is it really good or bad to have one. Also I see that after another restore of the original stock 4.2.2 ROM it is barely getting the signals indoor (1 bar only). The signal reception is very weak and sporadic . Should i keep the device or not and is there any remedy or network signal strength.
Thanks.
Click to expand...
Click to collapse
Firstly I love the detail you have provided which would save you and me a lot of time to pinpoint the exact problem and work it accordingly.
Firstly, I would suggest that if you have a box or any other receipt that shows your exact device name with its basebands. Where did you buy it from and what is your exact location so we can guess your region. This is the time to show it now. Also which basebands work in your location can also help us out.
The problem you have made it flashed basebands of a different variant which has resulted in loss of network. So to fix it we need, and there are three ways about it.
First, download Sony PC companion and try to repair your phone and see if that helps.
Secondly, download flashtool and ftf for your device (make sure you select the right variant this time. Choosing for wrong device can hard brick your phone. so beware) and flash your phone with it.
If all this fails, you go to Sony flashtool called Emma. Download it and try to flash it with that.
You can google how to use every tool on xda and I am sure you would find a lot of guides for that.
Quote me back in case you expect an answer

Xperia ZR periodically losing network connection, baseband and IMEI.

Hi all. I bought used Experia ZR. And it have problems with baseband, EMEI and WiFi. I know that losing this information on ZR is very bad, and this problem have no solution. But I have TA backup, and in my case somtimes all working good and I see EMEI and other important parametrs. So I think that my situation may be not so critical as TA fatall damage.
I have no many expirience in mobile repairing, so i hope to take some advices here. The first question is - "Would should be my first step?"
Now i have Android 4.1.2, opened bootloader, root permissions and custom recovery. I tried many firmwares, but most of them doesn't loading when EMEI lost. I also trying flash image thru PC Companion, but it doesn't take any differenсes from Flashtool.
I think that it can be problems with flash memory or hardware problems with network module, but i don't know how to check it.
What can I try in this situation?
P.S.: Sorry for my english.
P.P.S.: I accidentally mixed up forum section. I hope moderator can fix it.

Xperia Z1 freezes very soon after startup!

Hi guys,
Since yesterday I got a problem that soon after startup my phone freezes. When it freezes I have to hard reset the phone(power button+vulune up). Before that my phone was working fine. but I wanted to reset my phone to clear up some space. I did that by going into the TWRP recovery and wiped cache, data, dalvik, internal/external storage and system. Because I deleted the system partition TWRP said there was no OS installed. This was very stupid that I wiped the system partition. But I thought that I could just flash the stock firmware back in flashtool so i did that. But now my phone freezes very soon as it started up. so I cant even complete the setup of the phone.
There was one thing that stud out to me. That was an error that I got when flashing the firmwares. the error was: warn - unit 2212 not found in bundle. Maybe this means something. I googled it but couldn't find a solution to the error message.
The things I tried:
-Flashed the stock firmware(centrel europe 1, central europe 5, customized netherlands)
-Flashed the stock firmware + flashed 2 different(kernel 1 and 2) custom kernels(centrel europe 1, central europe 5, customized netherlands)
-Flashed this kernel and installed this rom
-Flashed the boot.img from the lastest CyanogenMod 12.1 build and installed that rom
I did all this and it was always the same problem. I don't know what to do anymore. I hope you guys can help me. If u need more info I will try to give that.
Ive spend my whole day searching for an solution for this problem. But still I havent found any solution.
additional info:
Phone: Xperia Z1(honami)
Model:C6903
Carrier: KPN
Country: The Netherlands
TA partition: Lost/not backed up
DRM status: Lost
Links to all the roms, kernels, firmwares I used:
Kernels: kryptonian kernel(venkat kamesh), OK kernel(olokos)
ROMS: kryptonian rom of awesomeness(venkat kamesh), latest CyanogenMod 12.1(CyanogenMod)
Firmwares(from XperiFirm): 14.6.A.1.236(central europe 1), 14.6.A.1.236(central europe 5), 14.6.A.1.236(customized NL), 14.6.A.1.236(KPN)
The firmwares were downloaded using Xperifirm in flashtool.
The firmwares were flashed with delete USERDATA and APPS_LOG checked(screenshot).
flashtool was fully up to date(0.9.23.2)
I will upload a video tomorrow on youtube so that you can see what is exactly happening.
8/4/2017 22:05(10:05PM)
- Not all links updated, thread not fully finished.
8/4/2017 22:35(10:20PM)
- Screenshot added, links updated, little text error's changed(my English is not that good )
9/4/2017 08:50(08:50AM)
- Added DRM status, TA partition status

MiniKoelkast said:
Hi guys,
Since yesterday I got a problem that soon after startup my phone freezes. When it freezes I have to hard reset the phone(power button+vulune up). Before that my phone was working fine. but I wanted to reset my phone to clear up some space. I did that by going into the TWRP recovery and wiped cache, data, dalvik, internal/external storage and system. Because I deleted the system partition TWRP said there was no OS installed. This was very stupid that I wiped the system partition. But I thought that I could just flash the stock firmware back in flashtool so i did that. But now my phone freezes very soon as it started up. so I cant even complete the setup of the phone.
There was one thing that stud out to me. That was an error that I got when flashing the firmwares. the error was: warn - unit 2212 not found in bundle. Maybe this means something. I googled it but couldn't find a solution to the error message.
The things I tried:
-Flashed the stock firmware(centrel europe 1, central europe 5, customized netherlands)
-Flashed the stock firmware + flashed 2 different(kernel 1 and 2) custom kernels(centrel europe 1, central europe 5, customized netherlands)
-Flashed this kernel and installed this rom
-Flashed the boot.img from the lastest CyanogenMod 12.1 build and installed that rom
I did all this and it was always the same problem. I don't know what to do anymore. I hope you guys can help me. If u need more info I will try to give that.
Ive spend my whole day searching for an solution for this problem. But still I havent found any solution.
additional info:
Phone: Xperia Z1(honami)
Model:C6903
Carrier: KPN
Country: The Netherlands
Links to all the roms, kernels, firmwares I used:
Kernels: kryptonian kernel(venkat kamesh), OK kernel(olokos)
ROMS:kryptonian rom of awesomeness(venkat kamesh), latest CyanogenMod 12.1(CyanogenMod)
Firmwares(from XperiFirm): 14.6.A.1.236(central europe 1), 14.6.A.1.236(central europe 5), 14.6.A.1.236(customized NL), 14.6.A.1.236(KPN)
The firmwares were downloaded using Xperifirm in flashtool.
The firmwares were flashed with delete USERDATA and APPS_LOG checked(screenshot).
flashtool was fully up to date(0.9.23.2)
I will upload a video tomorrow on youtube so that you can see what is exactly happening.
8/4/2017 22:05(10:05PM)
- Not all links updated, thread not fully finished.
8/4/2017 22:35(10:20PM)
- Screenshot added, links updated, little text error's changed(my English is not that good )
Click to expand...
Click to collapse
1st: Finally someone who does a proper report with all information needed, have a few thumbs :good::good::good:
2nd: Your English is fine
3rd: You should use the tool Emma. It's been free for a few years now. You can find it on the web, I remember having seen it on chip.de some time ago.
This tool is exactly what you need and has saved my phone's ass more than one time.
It basically un-does any software modification you've ever done and enables you to start from scratch!

Kaffeetrinker said:
1st: Finally someone who does a proper report with all information needed, have a few thumbs :good::good::good:
2nd: Your English is fine
3rd: You should use the tool Emma. It's been free for a few years now. You can find it on the web, I remember having seen it on chip.de some time ago.
This tool is exactly what you need and has saved my phone's ass more than one time.
It basically un-does any software modification you've ever done and enables you to start from scratch!
Click to expand...
Click to collapse
Thanks you for your answer on my post!
Unfortunately Emma didn't solve my issue. I tried it several times with 3 different firmwares(those were the only available). I also relocked the bootloader and tried reparing the phone through Xperia Companion. But that gave the same result. I made a video were you ca see the problem. The link will be in the post 60 minutes after this post. I hope my problem will get solved!
Thanks for your time!

I think I found the problem!
So I think that the SD card is the problem. When I installed a firmware trough Emma I took my SD-card and Sim-card out and put them in my backup phone(so people could just call me etc.). And then suddenly the phone worked. I first put in my Sim-card in my phone so I could install whatsapp and have my contants loaded. Then I plugged my SD-card in and after 3-5 minutes the phone froze. So I think it's the SD-card. I am not sure yet but I am going to do some more tests with different SD-cards. I will let you know every update!

Accidentally flashed E6533 firmware on E6553

Title says all. First of all, I apologise if this mistake seems too easy to avoid.
I used some site as a guide on upgrading my E6553 to 7.1.1. What I don’t realise is the firmware that they labelled as E6553 was actually meant for E6533. My stupid ass went ahead and flashed it, and now my phone is stuck on a “sim card inserted, rebooting” loop even though there’s none inserted. I tried reflashing the correct ftf but flashtool flagged my phone as E6533 permanently.
I tried Xperia Companion software restore too but failed. Can anyone help me change from E6533 back to E6553? I really need my phone