Database Develop

[Q] Help with rooting problem

hey guys i have the Xperia Z 4G from Telstra
Bootloader unlock allowed - Yes
Android: 4.1.2
Build: 10.1.A.1.350
Model: c6603
I have been trying to root the device without unlocking the BL how ever it is not working i have been following the two similar guides on here like this one
http://forum.xda-developers.com/showthread.php?t=1886460&highlight=restore+ended&page=241
All drivers are installed the script detects my phone perfectly once in the script i choose option "3" then it tells me to follow on screen promts to restore, i do this as instructed i press restore and then it says Restore started, then like a second later i get "Restore ended" and the script can not continue.
Any suggestions would be much appreciated i only want it rooted so i can apply the wifi dropout fix.

Do you have pc companion opened?
In security settings activate unknown source.
Or factory reset and try again.
Sent from my C6602 using xda premium

[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.

[Q] Need Help !! My C6602 often dead

Hi sir, I need your help.
this problem I guess starting when I tried to change my network mode through xposed (FYI: in my country ID doesn't fully support LTE yet, but I try enable all network type) then my phone automatically set to LTE mode and suddenly got turn off when I unlock screen. at the moment I realize that my C6602 isn't LTE
FYI I tried to solve it, here is I've tried:
-Flash stock FTF
-Restore NANDROID but failed (CWM error while restore /system, I've regenerating md5 and it's fine)
-Relock BL
-Remove SDCard
-Remove SIMCard
few main problems:
-when I discharging, sometimes it work normally (didn't turn off) except if I setting my clock time, open camera, and few apps it's suddenly turn off
-however if I tried turn on my phone, it's stuck at sony logo then turn off again and I can't turn it on except if my phone charging it's can boot perfectly
-when I succeed use my phone (with charging attached) then I check network mode there's LTE mode !! how can I fix this network mode? I desire like before (WCDMA preferred/GSM, there's no LTE mode)
so sorry if this thread similar with others but I'm already search and surfing any thread it no result
------------------------------------------------------------------
now my phone on stock 4.3 / LB / without root

anyone alse can help me :/ thanks

ryandxter said:
anyone alse can help me :/ thanks[/QU
which country or carrier is the phone from? make sure you download and flash the appropriate ftf that is only for c6603. flash it with flashtool and it should boot up nicely. if you are having troubles on 4.3 ftf, then possbile try the lower version (4.2.2 or 4.1.2) and then connect it with pc suite and update from there
Click to expand...
Click to collapse

tanny0543 said:
which country or carrier is the phone from? make sure you download and flash the appropriate ftf that is only for c6603. flash it with flashtool and it should boot up nicely. if you are having troubles on 4.3 ftf, then possbile try the lower version (4.2.2 or 4.1.2) and then connect it with pc suite and update from there
Click to expand...
Click to collapse
my county is ID, but I usually using FTF 4.3 SG (singapore) region before and it's works fine
I've already tried using lower version 4.2.2 SG too but still none works

correction
my device is 6602

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

C6903 - Baseband Unknown Fix

Dear Mods,
I am aware that I am posting in wrong section but I haven't got any help in the Q&A section since Aug-2016
****
Hi Experts,
I have searched the forum and after flashing for three sleepless nights, I am still struck with the unknown baseband issue.
The details are:
C6903
BL Unlocked & now its locked using Flashtool (DRM or TA backup is unavailable )
Currently the phone is struck in boot loop in .534
Used Flashtool ver. 0.9.22.3 & 0.9.18.6
Latest EMMA & Xperia Companion
My phone hanged when listening to the music and when I force restarted the unknown baseband showed up. While flashing I got the baseband back after flashing .518 however it hanged again after two days and I lost the BB
Now I am struck in boot loops on .534 and .518 both. I can boot into .290 successfully. Can someone please guide me to the correct method of restoring my IMEI permanently.
P.S. As per my short experience with C6903, I believe something stops the boot of .534 and .518 after first boot. Means I was not able to boot into .534 but accidentally when I flashed .518, my phone booted successfully. However now I am unable to boot into .518. May be I am missing the piece of puzzle that an expert can provide.
I would really appreciate if someone can help. Thanks in advance~
OP is at: https://forum.xda-developers.com/xperia-z1/help/c6903-baseband-unknown-fix-t3441711

Anyone...

1st you shouldn't write it here. Mods will remove it and it's more worthless work for them.
2nd have you considered that your phone might have some hw issue? You're talking about some old sw versions, so just flash .236 via emma and if you still have the issue, I would consider the device defective. And then it's better to buy a newer phone, z1 is now pretty old (considering that it's a flagship of 2013)

Mod edit:
Duplicate thread closed
https://forum.xda-developers.com/xperia-z1/help/c6903-baseband-unknown-fix-t3441711