[help] xperia z no signal - Xperia Z Q&A, Help & Troubleshooting

help my xperia z no signal , the story is after update to 4.4.2 version and .230 build number my phone says phone not allowed mm #6 its has signal but cannot recieve call and txt then i brought it to service center then they did a new update but no luck its same problem ,,, then i flash it to 4.3 firmware then no signal , then ill update to pc companion to 4.4 again no luck and no signal again ..... imei are correct what are the other solution for this ?? my country is philippines... please help me !

knightscorpio said:
help my xperia z no signal , the story is after update to 4.4.2 version and .230 build number my phone says phone not allowed mm #6 its has signal but cannot recieve call and txt then i brought it to service center then they did a new update but no luck its same problem ,,, then i flash it to 4.3 firmware then no signal , then ill update to pc companion to 4.4 again no luck and no signal again ..... imei are correct what are the other solution for this ?? my country is philippines... please help me !
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you got problem with (oh god) motherboard
Tapatalk'ed from my Xperia™ Z (C6602) running Dirty Unicorns ROM!

Related

[Q] My Z don't have update fw 252 on PC companion

Hi everybody , i'm using xperi Z c6602 , i recieve news is Z 6602 had fw 253 on PC companion , but when i connect my Z with laptop , it don't have notification about update fw 253?
You have to wait like alot of other people, It will come...relax man
just wait...
Do not update if your phone is rooted
eddietah said:
Do not update if your phone is rooted
Click to expand...
Click to collapse
Here are instructions to update to .253 keeping the root!
USE THESE INSTRUCTIONS: http://forum.xda-developers.com/showthread.php?t=2279661
wakeup123 said:
Hi everybody , i'm using xperi Z c6602 , i recieve news is Z 6602 had fw 253 on PC companion , but when i connect my Z with laptop , it don't have notification about update fw 253?
Click to expand...
Click to collapse
Flashtool is your best friend if you can't wait , like me. Haha
slo2lah said:
Flashtool is your best friend if you can't wait , like me. Haha
Click to expand...
Click to collapse
I did as you say , haha
one more question : If my Z rooted , it can't update on PC?

update problem

I received a phone (xperia z) call from Dubai. c6602 phone model. There are currently over the android 4.2.1 version and 10.1.1.a.1.253 ROM. However, I want to upgrade my phone 10.3.A.0.423 ROM. I want to update your phone software up to date phone and the computer, phone gives the message that I want to update.
ibram_e said:
I received a phone (xperia z) call from Dubai. c6602 phone model. There are currently over the android 4.2.1 version and 10.1.1.a.1.253 ROM. However, I want to upgrade my phone 10.3.A.0.423 ROM. I want to update your phone software up to date phone and the computer, phone gives the message that I want to update.
Click to expand...
Click to collapse
WHAT?!
u wanna update?
ur phone wanna update?
or what is ur problem exactly?
thr s no 4.2.1 on .253
it s JB 4.1.2 on .253 firmware (or better to sa 253 firmware base on 4.1.2 JB)
anyway if u get notification about updating phone and u get problem try Sony Update Service
:good:

[Q] loss of gsm signal

Hi guys, please I need some help with my xperia z, it presently does not get any network regardless of changing sim. Dis occurred few days after upgrading to newest firmware .67. It worked fine after some days but signal started gettin poorer.realised dat after givin the phone a little bump it comes back to full signal.eventually it stopped getting network altogether, except in rare cases when I feel I'm close to a tower , it searches but cannot register on the network sayin to ensure that a network signal is in range 99asu.I also cannot switch to manual select of network. Please anybody with a solution. Want to know if its a hardware or software problem. I don't have a sony service centre here that can help me.thanks
I had a similar issue and found that my "APN" was missing (Telcel Mexico). I created a new APN from information on the Internet and all is well.
Sent from my C6602 using XDA Premium 4 mobile app
gwithrow said:
I had a similar issue and found that my "APN" was missing (Telcel Mexico). I created a new APN from information on the Internet and all is well.
Sent from my C6602 using XDA Premium 4 mobile app
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Click to collapse
i doubt if its a similar issue. i dont get any signal at all
my brother it seems that the device is faulty... get it RMA'd
rohit25 said:
my brother it seems that the device is faulty... get it RMA'd
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Click to collapse
Pls what do you mean by RAM'd?
mibz said:
Hi guys, please I need some help with my xperia z, it presently does not get any network regardless of changing sim. Dis occurred few days after upgrading to newest firmware .67. It worked fine after some days but signal started gettin poorer.realised dat after givin the phone a little bump it comes back to full signal.eventually it stopped getting network altogether, except in rare cases when I feel I'm close to a tower , it searches but cannot register on the network sayin to ensure that a network signal is in range 99asu.I also cannot switch to manual select of network. Please anybody with a solution. Want to know if its a hardware or software problem. I don't have a sony service centre here that can help me.thanks
Click to expand...
Click to collapse
What model do you have??
You upgraded by PC Companion or by flashtool?? Maybe the baseband is incorrect and the phone don't have signal, maybe your carrier use two band and not both are in all coverage.
yamiAMR said:
What model do you have??
You upgraded by PC Companion or by flashtool?? Maybe the baseband is incorrect and the phone don't have signal, maybe your carrier use two band and not both are in all coverage.
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Click to collapse
Initially upgraded to .434 using flashtool, then .67 by OTA. By baseband do u mean 2g and 3g? Cos I don't get any form of signal at all.
Hi there, I have had the same problem: after updating the XZ to 4.2.2 (2.67 over OTA) the signal dropped instantly. Therefore I had to send it back Sony Care. They fixed it. The update has overwritten a different smallband/baseband-version above the other one, just as I suspected. I bet you can flash it yourself (your an XDA user..) instead of waiting 2 weeks or more. If you don't know how it works and you've absolutely no experience with flashing, just send it back to Sony care.
I think the easiest way is to flash a different (older) baseband-version on your XZ, reboot/factory reset and see if it works. The second method is to try downgrading the software to .244 INCLUDING the baseband-version, then update it by flashing the XZ to 2.67 while EXCLUDING the baseband-version. The third option is to re-flash (with flashtool) the 2.67 update but a different version (GLOBAL).
My phone details:
Modelnumber: C6603
Android-version: 4.2.2
Smallbandversion: 9x15A-ACEFWMAZQ-30110068-44
Kernelversion: 3.4.0g43a9ba9
Buildnumber: 10.3.1.A.2.67
Altough your smallband/baseband may differ from mine. Therefore, please find your own software-version. I'm using:
GLOBAL-LTE_10.3.1.A.2.67 (Netherlands)
Goodluck! Please let us know about your issue:fingers-crossed:.
mibz said:
Initially upgraded to .434 using flashtool, then .67 by OTA. By baseband do u mean 2g and 3g? Cos I don't get any form of signal at all.
Click to expand...
Click to collapse
But what Xperia Z model do you have?? C6603, C6602, C6606??
I have a similar situation in the case of C6603, in my carrier sometimes I have 2G signal but never 3G and other times no signal. In the case of OTA or PC Companion updates, sometimes upgrade to diferent model or carrier, I have a friend that upgrade his Xperia Arc by PC Companion but with the uncarrier firmware. Maybe this is your case, the OTA firmware don't well upgrade your base band.
In this case I suppose that you can flash only the baseband by Flashtool, but be carreful that the firmware was made for your Xperia Z (C6603, C6602, C6606).
yamiAMR said:
But what Xperia Z model do you have?? C6603, C6602, C6606??
I have a similar situation in the case of C6603, in my carrier sometimes I have 2G signal but never 3G and other times no signal. In the case of OTA or PC Companion updates, sometimes upgrade to diferent model or carrier, I have a friend that upgrade his Xperia Arc by PC Companion but with the uncarrier firmware. Maybe this is your case, the OTA firmware don't well upgrade your base band.
In this case I suppose that you can flash only the baseband by Flashtool, but be carreful that the firmware was made for your Xperia Z (C6603, C6602, C6606).
Click to expand...
Click to collapse
ok thanks i use a c6602
tally114 said:
Hi there, I have had the same problem: after updating the XZ to 4.2.2 (2.67 over OTA) the signal dropped instantly. Therefore I had to send it back Sony Care. They fixed it. The update has overwritten a different smallband/baseband-version above the other one, just as I suspected. I bet you can flash it yourself (your an XDA user..) instead of waiting 2 weeks or more. If you don't know how it works and you've absolutely no experience with flashing, just send it back to Sony care.
I think the easiest way is to flash a different (older) baseband-version on your XZ, reboot/factory reset and see if it works. The second method is to try downgrading the software to .244 INCLUDING the baseband-version, then update it by flashing the XZ to 2.67 while EXCLUDING the baseband-version. The third option is to re-flash (with flashtool) the 2.67 update but a different version (GLOBAL).
My phone details:
Modelnumber: C6603
Android-version: 4.2.2
Smallbandversion: 9x15A-ACEFWMAZQ-30110068-44
Kernelversion: 3.4.0g43a9ba9
Buildnumber: 10.3.1.A.2.67
Altough your smallband/baseband may differ from mine. Therefore, please find your own software-version. I'm using:
GLOBAL-LTE_10.3.1.A.2.67 (Netherlands)
Goodluck! Please let us know about your issue:fingers-crossed:.
Click to expand...
Click to collapse
thanks a lot, i'l try what u suggested, i know how to flash but dunno how i can do that without the baseband like u said, cos i already did a factory reset .i use a c6602 guess il find a version here that i can use.i'l hola at you if i hit any roadblocks cos i dont have esony care here.thanks a lot
mibz said:
ok thanks i use a c6602
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Click to collapse
Look this: C6602 10.3.1.A.2.67 STOCK
If you have doubts and I can help you tell me.
To find your version, just dial *#*#7378423#*#* => service info => software info => File system version: ......; download it from Xda and (re-)flash it. I've read about this; it happens a lot with XZ's with the GLOBAL firmware. You've probably the same version. Good luck and please let us know
tally114 said:
To find your version, just dial *#*#7378423#*#* => service info => software info => File system version: ......; download it from Xda and (re-)flash it. I've read about this; it happens a lot with XZ's with the GLOBAL firmware. You've probably the same version. Good luck and please let us know
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Click to collapse
hi, i jst re flashed with the 2.67 version the other guy posted in this thread, and its still not working, no network signal at all (0 dbm 99 asu), i realised i have the same baseband and kernel version with yours although i use a c6602. its global_hspa though.what do you think i should do next please. thanks
mibz said:
hi, i jst re flashed with the 2.67 version the other guy posted in this thread, and its still not working, no network signal at all (0 dbm 99 asu), i realised i have the same baseband and kernel version with yours although i use a c6602. its global_hspa though.what do you think i should do next please. thanks
Click to expand...
Click to collapse
Try to flash full firmware, because you don't have signal at all, maybe could be hardware issue. Cultural question, You try your sim card in another phone, don't you?
Okay I eventually found out what the problem was.it's a hardware problem, connection of the antenna near the vibrator, bottom right when lookin at back of phone was loose.thanks to all who posted suggestions.eventually opened it myself.

[Q] Sony Xperia V - Sound/Speaker problem

Hi. first, Sorry for my english.
I have one problem with my sony xperia v (lt25i)
When i start one call, or recived call my speakcer (earphone) mute for 2-3 sec and after this is okey.
I Have 4.3 , 9.2.a2.5, repaired with Sony PC Companion 2.1 etc...
Please help me, maybe any custom rom?
Thank You!
G.G.
just reflash ur firmware using flashtool

phone signal is too week

sir i have network signal(sim) issues with my xperia tx handset since i got it upgraded to lollipop .can some help me with a solution??

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