Database Develop

[Q] SIM Card not recognized

Galaxy S advance.
Rooted a while ago. Android 4.1.2
Baseband I9070XXLQ4
Today phone says 'no SIM'. I can't call, I can't be called. Only emergency calls.
SIM card works with other phones.
So it's software or hardware.
Help.

hardware.. seems like u got ur baseband.. so modem still working fine..
edit: if it happen after you root try flashing stock rom or kernel..

flash stock via Odin!
Sent from my GT-P1000 using Tapatalk 4

pawelarc said:
flash stock via Odin!
Sent from my GT-P1000 using Tapatalk 4
Click to expand...
Click to collapse
All the times I had this problem I've flashed stock ROM with Odin and I can confirm that it works. Seems that sometimes is a problem of SecPhone.apk

Thanks guys, but can you point in the right direction (with flashing the stock ROM)? Like, where do I find it and stuff...
(I don't know how I managed to root my phone without breaking it in the first place xD)

vici30 said:
Thanks guys, but can you point in the right direction (with flashing the stock ROM)? Like, where do I find it and stuff...
(I don't know how I managed to root my phone without breaking it in the first place xD)
Click to expand...
Click to collapse
I've writed how to reflash stock firmware in this thread, you can follow up to the sixth step, and if you are interested also to root and CoCore kernel go up to tenth step (after this reboot device)
EDIT: You don't need "Re-Partition" option in Odin

No SIM card (but network OK 4 bars)
Hi,
I have a 9070P (NFC) simlocked to Orange France.
I've got the very same "no SIM card" issue after upgrading to JB via Odin (3.07) (tar downloaded from samfirmware).
Network is OK (4 bars), but "no SIM card". The SIM works fine in any other phone I have tested + inserting a SIM from a different operator does not trigger the "enter unlock code" popup at startup.
My IMEI is OK and has always been (*#06#).
Note : from the many posts I've read, it is *not* stored in /efs on this phone but could be stored in CSPSA partition.
Note : I've always flashed the *right* firmwares for I9070P (not I9070).
What I have tried so far :
* restock to GB with this tutorial : http://forum.xda-developers.com/showthread.php?t=2247604
--> No SIM card
* then flashed Orange's stock firmware with Odin from samfirmware
--> No SIM card
* played a bit lot with "secret code" *#197328640# menus. It happened once that I recovered the SIM card + data connexion then it failed again after next boot. So I'm pretty sure the pb *is* software.
It's a pitty I have backed up my "efs", and "CSPSA" partitions (http://forum.xda-developers.com/showthread.php?t=2145464) after the pb occured...
I have rooted the phone, dumped and tried to analyse modem/RIL logs, but did not manage to spot the pb...
I'm used to linux, flashing and so on but not that much of Android intricaces, so if anybody is willing to help me finding the solution I'd pay him/her a bear (or two)
Questions : does anybody know how to check CSPSA partitions ? It's content might have been damaged during flashes. As I have repartitioned when downgrading, partition size should be OK, but as I have read somewhere in xda that that partition content might not be replaced when flashing a tar.md5 that contain a cspsa image (which is the case in the ROM flashed to downgrade) because it contains the IMEI encrypted.
-> is there a way to mount and explore it or to extract the content of a cspsa image from a ROM (I've tried to mount it as ext4: failure)?
Thanks in advance !

What version of Jelly Bean you have flashed the first time?

Hi!
It was this one : Germany (T-Mobile) I9070PXXLPJ grabbed from Samfirmare (I doubled checked it was the one for the "P" version)
Any known pb with those JB upgrades?

flentus said:
Hi!
It was this one : Germany (T-Mobile) I9070PXXLPJ grabbed from Samfirmare (I doubled checked it was the one for the "P" version)
Any known pb with those JB upgrades?
Click to expand...
Click to collapse
I don't know if this version has the simlock, maybe your phone doesn't recognize sim card because you have updated with Odin from a simlocked GB to a non-simlocked JB or with simlock from another carrier

Hm, did you try to do factory reset? People had problems with signal if they do not do it after GB>JB.
Sent from my GT-I9070 using Tapatalk

Tesla-MADAL93 said:
I don't know if this version has the simlock, maybe your phone doesn't recognize sim card because you have updated with Odin from a simlocked GB to a non-simlocked JB or with simlock from another carrier
Click to expand...
Click to collapse
I restocked to original ROM : still no Sim card + if the pb was simlock, it would ask for unlock code whereas it just say "no SIM card".
---------- Post added at 10:10 AM ---------- Previous post was at 09:57 AM ----------
shut_down said:
Hm, did you try to do factory reset? People had problems with signal if they do not do it after GB>JB.
Sent from my GT-I9070 using Tapatalk
Click to expand...
Click to collapse
Yes, I did factory resets, cache wipes, dalvik cache erasure multiple times (like 20) : no dice.
Does anybody know how to activate and analyse modem and RIL logs (and manage debug level) ? I think it would help find the root cause faster than "trial and error" + decrease the risk of bricking.

flentus said:
I restocked to original ROM : still no Sim card + if the pb was simlock, it would ask for unlock code whereas it just say "no SIM card".
Click to expand...
Click to collapse
Right, as you said maybe the problem is really the CSPSA because simlock infos are stored in this partition, seems that there is no way to unpack or to see the files contained in it, if you try to reflash Jelly Bean using repartition?

Tesla-MADAL93 said:
Right, as you said maybe the problem is really the CSPSA because simlock infos are stored in this partition, seems that there is no way to unpack or to see the files contained in it, if you try to reflash Jelly Bean using repartition?
Click to expand...
Click to collapse
- Reflash Jelly Bean with repartion : already done without success + JB ROMs (I've seen until now) do not contain CSPSA partition.
But my problem is not SIM lock, it's "no SIM" at all, as I already said, if it was a Sim lock issue, I would have the "insert unlock code" dialog at logon.
- For reference : I've found the sources for CSPSA Android manager and desktop tools at : download.meego.com/live/home:/imppa/Trunk/src/[/url] (it's from the Meego project)
I think it would enable to read/write from/to CSPSA partition properly (not peeking/poking blindly).
- For now, I'm trying to analyse "adb logcat -b radio", but lots off errors seem to but "normal", I can hardly identify which ones are relevant.
Anybody reading radio logcat fluently ?

Guys, could any of you backup the 3 following partitions of their I9070P and post them somewhere to me so that I can try to restore them on my device to see if it sorts out my problems ?
The full tuto is here : http://forum.xda-developers.com/show....php?t=2145464
Thanks in advance !

Bump !
Nobody willing to help me ?
Tried installing CM10.1: still "no SIM"

search xda to find help contain tee folder
i forget links source
but u can after root
copy orginal tee folder from ,, lib ,, system , tee
i use zsmg2 work and copy tee folder and flash another rom then copy tee and replace them fine my simcard work

zakaria9 said:
search xda to find help contain tee folder
i forget links source
but u can after root
copy orginal tee folder from ,, lib ,, system , tee
i use zsmg2 work and copy tee folder and flash another rom then copy tee and replace them fine my simcard work
Click to expand...
Click to collapse
Hi Zakaria !
thanks for your answer.
This solution works if you have flashed a "I9070" ROM on a "I9070P". But I never did that, I have always flashed "P" ROMs.
I have checked the MD5sum of the files in my "tee" folder, they are (as expected) the same as the ones into the .zip you are recommending me (I've checked the rights too : everything is OK).
Given what I see in the radio logs (logcat -b radio), the problem appears to be under the RIL layer: modem seems OK but it replies that the SIM is "absent" when queried. It could be a hardware problem to, but as it worked well before, I don't think so.
I would really like to overwrite my CSPSA, modemFS and EFS partitions from a working I9070P to see if it would solve the pb (I've made backups of mine in the current "non working" state).
I'm just expecting someone to dump and send them to me...
Have a nice day.

flentus said:
Hi Zakaria !
thanks for your answer.
This solution works if you have flashed a "I9070" ROM on a "I9070P". But I never did that, I have always flashed "P" ROMs.
I have checked the MD5sum of the files in my "tee" folder, they are (as expected) the same as the ones into the .zip you are recommending me (I've checked the rights too : everything is OK).
Given what I see in the radio logs (logcat -b radio), the problem appears to be under the RIL layer: modem seems OK but it replies that the SIM is "absent" when queried. It could be a hardware problem to, but as it worked well before, I don't think so.
I would really like to overwrite my CSPSA, modemFS and EFS partitions from a working I9070P to see if it would solve the pb (I've made backups of mine in the current "non working" state).
I'm just expecting someone to dump and send them to me...
Have a nice day.
Click to expand...
Click to collapse
We do not have much P ROMs, maybe just one. What P ROM you flashed?

shut_down said:
We do not have much P ROMs, maybe just one. What P ROM you flashed?
Click to expand...
Click to collapse
I've always flashed stock ROMs from SamMobile. There are dozens of them.
As explained in a my first post in this thread, I have tried to upgrade to JB (German (T-Mobile) I9070PXXLPJ) : this is when appeared the "no SIM" problem.
Then I went back to GB (tutorial posted in xda ref. given in my 1st post) and then applied stock ROM from my Carrier: stil no SIM. (SIM card is OK in any other phone, and tried at least 3 other SIM cards from my carrier, -my phone is still SIM locked to it: no SIM).
Even if I use a SIM card from another carrier, I don't get the "Enter unlock code" popup.
If I remove any of those SIM while phone is on, I don't get the "SIM removed: reboot" popup.
I have even flashed the latest nightly CM10.1 for the I9070P.
I can past radio logcats if anybody want to have a look at it...
Flentus

S3 LTE | KIT KAT No SIM Problem / no IMEI / damaged EFS (without Backup) FIX

At First
What you do with your Phone is up to you and i don´t take any responsorbility for any Damages you do/did.
Also i don´t know if this works for other Phones, since the S3 LTE GT-I9305 is diffrent in the Order of Partitions to other phones.
After Hours of Searching and nothing found...
I´ve finally got a fix for the No Sim/ No IMEI Problem.
Short Explanation:
I had to
1. reflash Original Samsung Firmware (Jellybean)
2. root and cwm it
3. then flash cwm 1.6.4.5 or TWRP
4. Flash AOSB (or any other Kitkat ROM)
5. Start
(6. Then it asked for my PIN )
6. Flash GAPPS
Done, now everything works again :good:
Problem Explanation:
I was Flashing AOSB for the First time and my Sim Card didn´t work anymore.
After Hours of Searching i saw a Post where someone said that the IMEI does´t seem to be there anymore.
I looked for it and there Realy was no IMEI.
I tried everything:
IMEI Recovering after Brick
Samsung Tool with Broadcom NV Tool
ADB Recovery of IMEI
but nothing worked.
After 4 Hours i decided i should reflash to stock. (Guarantee)
After Flashing done it didn´t boot, but after reflashing CWM any AOSB(Kitkat Rom) i got my IMEI back again.
Everything working fine since then.
If you are flashing 4.4 KITKAT for the First Time be sure you use the Right CWM or TWRP version !
or it will damage your EFS Folder and infact your IMEI so no Sim Funktion is there anymore!!
I was short before sending it in because i thought i wouldn´t get it to work anymore
( I´m flashing everything :laugh: and had problems like this already since years but this was almost to much )
Hope i could help anyone
Darkangel142

Can someone please move this to S3 Lte Section ? (Sry wrong selected)

Or you could just flash another modem.. Since the "EMG" modem are changing the EFS partition to another format (Called EFS v2)

Darkangel142 said:
Can someone please move this to S3 Lte Section ? (Sry wrong selected)
Click to expand...
Click to collapse
You use the red report button and ask a mod to move your post ,

I flashed another modem and there was no success, problem was that my efs folder was already there, but the files had wrong values
Gesendet von meinem GT-I9305 mit Tapatalk

[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!!

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.
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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

X Performance not brick but cannot be used

I'm using X Performance, Japanese Edition ( from Softbank ). A day ago, I flashed it to make it run international rom ( flashed by flashtool ). I saw that it couldn't receive SIM and the EMEI was lost. So I flashed it again back to Softbank's rom. Now it can boot, but the wallpaper doesn't stabilize, it changes very fast and cannot open basic setup so I cannot use the phone right now. Can you help me to fix it ? Any rom ( firmware ) for me to flash it to make it run ? Thank you so much !!! ( Xperia X Performance - Softbank - 502SO ). Ah one more thing, Xperia Companion cannot fix it by repairing !

same problem
need file system dump for jtag that xperformance

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gungsye said:
same problem
need file system dump for jtag that xperformance
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Ya anyone help can help us ? I cannot use my phone now. If i use international rom, the emei still dissapear & i cannot use SIM, especially, Android 7.0 of international rom, typing number to call someone is too lag