Hello everyone! I'd like to know if any of you know why my Sony Xperia Z C6603 does not detect or does not want to connect to 4G LTE or networks above 2G-EDGE technology. It detects my home network as 2G but the rest it detects them as 4G or 3G, but because of my SIM card I can't switch to any of them of course :/ I've already flashed my phone with no positive outcome... The problem still persists. What can I possibly do?
Thank you all so much in advance for your help! Let me know if anything from my phone (like IMEI or other stuff) is needed to help fix this issue ^^
luihime said:
Hello everyone! I'd like to know if any of you know why my Sony Xperia Z C6603 does not detect or does not want to connect to 4G LTE or networks above 2G-EDGE technology. It detects my home network as 2G but the rest it detects them as 4G or 3G, but because of my SIM card I can't switch to any of them of course :/ I've already flashed my phone with no positive outcome... The problem still persists. What can I possibly do?
Thank you all so much in advance for your help! Let me know if anything from my phone (like IMEI or other stuff) is needed to help fix this issue ^^
Click to expand...
Click to collapse
Have you tried different operator sim?
androidtweaker1 said:
Have you tried different operator sim?
Click to expand...
Click to collapse
Well I did try another SIM, but from my same carrier. I tested that Sunday when I took my phone to my carrier's offices to check if the problem was theirs. They put my SIM card in another phone and it worked on the other phone, while they put a test SIM card on my phone and it didn't work :/
I'll be attempting a bootloader unlock and a complete flash using Sony's EMMA with my phone and see if that solves the issue... I'd greatly appreciate any help I can get, I really don't know what else I can do.
luihime said:
I'll be attempting a bootloader unlock and a complete flash using Sony's EMMA with my phone and see if that solves the issue... I'd greatly appreciate any help I can get, I really don't know what else I can do.
Click to expand...
Click to collapse
Bootloader unlock is not necessary to flash stock firmware.
Just download firmware ftf file and flash it using flashtool
luihime said:
I'll be attempting a bootloader unlock and a complete flash using Sony's EMMA with my phone and see if that solves the issue... I'd greatly appreciate any help I can get, I really don't know what else I can do.
Click to expand...
Click to collapse
And you have correct network mode enabled in mobile networks settings? Do you have a correct version of phone for your operater network?
zviki said:
And you have correct network mode enabled in mobile networks settings? Do you have a correct version of phone for your operater network?
Click to expand...
Click to collapse
Network mode is LTE yes, and even so, my phone should be able to connect to at least HSPA but it doesn't go through that even :/
luihime said:
Network mode is LTE yes, and even so, my phone should be able to connect to at least HSPA but it doesn't go through that even :/
Click to expand...
Click to collapse
Ok... Just flashed with EMMA. Nothing, it's still the same. I did try another SIM card that didn't have LTE capability from another carrier and it did connect through HSPA+ and 3G, but with my SIM card it detects my home network as 2G, it should be letting me connect through HSPA like with my last Sony Ericsson phone, but nothing :/
Related
Hi Guys!
This is my problem:
I have a htc diamond and I sim unlocked it a few months ago. Now i don't know why, i can't use any sim cards from different carriers.
If i use a Sim card of the original carrier, it works just fine. If i use a different card, it doesn't connect to network, and on the notification bar a number "1" appears!
I've tried re-unlocking the device several times, i even aquired an unlock code because it looked like the phone was sim locked again, but no use..it just doesn't connect to any network besides the original one!
Can anyone help me please?!
Thank you!
fredandre4 said:
Hi Guys!
This is my problem:
I have a htc diamond and I sim unlocked it a few months ago. Now i don't know why, i can't use any sim cards from different carriers.
If i use a Sim card of the original carrier, it works just fine. If i use a different card, it doesn't connect to network, and on the notification bar a number "1" appears!
I've tried re-unlocking the device several times, i even aquired an unlock code because it looked like the phone was sim locked again, but no use..it just doesn't connect to any network besides the original one!
Can anyone help me please?!
Thank you!
Click to expand...
Click to collapse
try using MoDaCo.DiamondProvisioningDatabase .... maybe with this application solved the problem on your device
Hakim Rahman said:
try using MoDaCo.DiamondProvisioningDatabase .... maybe with this application solved the problem on your device
Click to expand...
Click to collapse
No, it didn't work
I installed it and rebooted the phone..but nothing changed..still can't connect with different networks..
Thank you ver much for your try though!!!
Any other ideas?
fredandre4 said:
No, it didn't work
I installed it and rebooted the phone..but nothing changed..still can't connect with different networks..
Thank you ver much for your try though!!!
Any other ideas?
Click to expand...
Click to collapse
Hey man...try to upgrade radio
Hi, I'm hoping you can help. Total noob so please bear with me.
I got a Si9000, it says it is unlocked.
When putting in sim card I got data network not available error.
Installed S1_Odin_20100512.pit
In PDA option I put in code_i9000XXJVS_CL565837_REV03_USER_LOW_SHIP.tar
For phone option I put in modem_i9000XXJVS_REV_00_CL1059471.tar
For CSC option I put in GT-i9000-CSC-MULTI-OXAJVS.tar
After I was told to type in *2767*3855# to reset phone.
Phone has been updated to 2.3.5, but now getting not able to connect to network error. It says mobile network unavailable. Any Ideas?
Thanks
have you checked that you have the correct settings for the network you want to use and also check that you have a valid IMEI number
slow--welder59 said:
have you checked that you have the correct settings for the network you want to use and also check that you have a valid IMEI number
Click to expand...
Click to collapse
Thanks for replying
Yes, the phone is shows the network, but when you try to select it, it says unable to connect.
I just checked there, and the IMEI number is valid
The files are in the right place, so nothing wrong there. Is wifi working?
snapper.fishes said:
The files are in the right place, so nothing wrong there. Is wifi working?
Click to expand...
Click to collapse
Yep, but wifi is the only thing thats working. No data or mobile network, no GPRS either
Which network are you with and what settings do you have in APN ?
Would recommend ...flashing Rom and Re-Rooting*
I am wondering if it's just something in the connection settings. When I went to Japan last year I had to fiddle with something in the settings before I could pick up signals. It was in mobile networks. I think you can select cdma or something like that.
Sent from my Nexus 4 using Tapatalk 2
EwOkie said:
Which network are you with and what settings do you have in APN ?
Would recommend ...flashing Rom and Re-Rooting*
Click to expand...
Click to collapse
Im with Go Conquer in Ireland, actually brought the phone to a shop to be unlocked, as it was Vodafone, but they said it already was unlocked. They have their settings up on their website so I have entered them.
I'm going to try putting it back to its original settings again, and rooting it again, do you think that might be it? Ill also try the cdma settings.
Thanks to you both
Follow my Guide below to flash Rom and then Root it
Why did you go to a shop to unlocked it ...theres apps on here free??
Did you manage to get it right again? I'm having the same issue as you do. I did a factory reset with cwm and now when I enter the sim card it doesnt connect to network or 3g. Wifi does work. I am on original rom 2.3.5 and I dont know what to do. I tried a other sim and that didnt work either. Please advice. Thank you.
happybeat said:
Did you manage to get it right again? I'm having the same issue as you do. I did a factory reset with cwm and now when I enter the sim card it doesnt connect to network or 3g. Wifi does work. I am on original rom 2.3.5 and I dont know what to do. I tried a other sim and that didnt work either. Please advice. Thank you.
Click to expand...
Click to collapse
Try to flash in odin without sim and put it later when it boots
Sent from my GT-I9000 using XDA Premium 4 mobile app
happybeat said:
Did you manage to get it right again? I'm having the same issue as you do. I did a factory reset with cwm and now when I enter the sim card it doesnt connect to network or 3g. Wifi does work. I am on original rom 2.3.5 and I dont know what to do. I tried a other sim and that didnt work either. Please advice. Thank you.
Click to expand...
Click to collapse
Are you sure to have flashed ROM with proper CSC bandwidth for the region where you live?
Hi,
Thank you all for replying! For some unknown reason the phone works. I left it a day off and then I powered it up again and it worked. So I dont know how but thank you guys for replying!
Grtz,
Happybeat
After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Plz tell me about what build you talking?
P.S. Sry for bad English
flash last build kernel which sim card worked
adize said:
After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Click to expand...
Click to collapse
you are lost your IMEI
check it with *#06#
you should have a backup of NvRAM
arefsa said:
you are lost your IMEI
check it with *#06#
you should have a backup of NvRAM
Click to expand...
Click to collapse
AFAIK, 2012 xperia devices don't use/have NVRAM for the IMEI. Could you post a link showing where you got the information that the T uses NvRAM?
sgt.reza said:
flash last build kernel which sim card worked
Click to expand...
Click to collapse
thanks but what exactly is that build is?
sim detection
adize said:
After installing Cm11 on my Xperia TX, it won't detect sim card, leaving my phone offline. NO Network service, signal, data connection 2g, 3g.
What could be the reason?
How to fix this?
Click to expand...
Click to collapse
sir
I have also the problem
but when I solved it
I followed like this
settings/more/mobile network/network operators
and the click to network operators so that it will search networks after searching one or two minute problem fixed sim detected
you may try like it goodluck
Tried it many times.
Sent from my LT29i using XDA Premium 4 mobile app
So, my Xperia Z has "no signal" error when i put my micro SIM card into its slot. Interesting is that when i turn the phone on it asks for a PIN, when i put the correct PIN in and confirm it has no signal at all... in the menu also appear "O2 Sim" apk after few seconds and my phone can even import contacts from SIM :laugh: ... well i am out of ideas.
Things i have tried:
Reinstall Android 4.4 via PC Companion
Downgrade to 4.3 via Flashtool
Downgrade to 4.2.2 via Flashtool
Reboot many times
Took SIM in and out many times + tried SIM in my second phone (XS) it worked normally...
I also tried SIM from different provider - same problem
Changed GSM to WCDMA only, ... (all options)
Add AP point
Find provider Auto/Manually - no service found
Checked if my phone is showing it's IMEI - yes it is
Checked if my phone isn't locked - no its unlocked
My phone is now BT locked, running Android 4.4 (10.5.A.0.230) non-rooted, at first i was thinking its a HW problem but well could it be if it recognizes the SIM card?
Last thing i am thinking about is to change my SIM to USIM, but i am not sure if it will help...
*Edit* I forgot to say everything execpt Network service (calls, sms, data) is working fine. *Edit*
*Edit2* After searching all over the google it seems like i am not alone... i have the same issue like this user https://www.youtube.com/watch?v=WdJ0DREwdEM " *Edit2*
*Edit3* I am adding some screenshots *Edit3*
Screenshots :
http://screenshot.cz/MNYQR/
http://screenshot.cz/Z5ZER/
http://screenshot.cz/QBFUE/
http://screenshot.cz/V7SUL/
http://screenshot.cz/TO741/
http://screenshot.cz/CRH28/
http://screenshot.cz/SQ8QK/
Thanks for any help, answers, ideas, everything.
SĐF said:
So, my Xperia Z has "no signal" error when i put my micro SIM card into its slot. Interesting is that when i turn the phone on it asks for a PIN, when i put the correct PIN in and confirm it has no signal at all... in the menu also appear "O2 Sim" apk after few seconds and my phone can even import contacts from SIM :laugh: ... well i am out of ideas.
Things i have tried:
Reinstall Android 4.4 via PC Companion
Downgrade to 4.3 via Flashtool
Downgrade to 4.2.2 via Flashtool
Reboot many times
Took SIM in and out many times + tried SIM in my second phone (XS) it worked normally...
I also tried SIM from different provider - same problem
Changed GSM to WCDMA only, ... (all options)
Add AP point
Find provider Auto/Manually - no service found
Checked if my phone is showing it's IMEI - yes it is
Checked if my phone isn't locked - no its unlocked
My phone is now BT locked, running Android 4.4 (10.5.A.0.230) non-rooted, at first i was thinking its a HW problem but well could it be if it recognizes the SIM card?
Last thing i am thinking about is to change my SIM to USIM, but i am not sure if it will help...
*Edit* I forgot to say everything execpt Network service (calls, sms, data) is working fine. *Edit*
*Edit2* After searching all over the google it seems like i am not alone... i have the same issue like this user https://www.youtube.com/watch?v=WdJ0DREwdEM " *Edit2*
Thanks for any help, answers, ideas, everything.
Click to expand...
Click to collapse
Try the SIM on other phone, its maybe a problem from your carriar
Xperia™ Z (C6602) with Tapatalk
androidfreak70 said:
Try the SIM on other phone, its maybe a problem from your carriar
Xperia™ Z (C6602) with Tapatalk
Click to expand...
Click to collapse
Thanks for a reply i tried it many times in two different phones... its working with no issue but in my Z nope, it doesn't.
SĐF said:
Thanks for a reply But i tried it many times in two different phone... its working with no issue :/
Click to expand...
Click to collapse
Umm.. You tried another SIM on your phone?
Xperia™ Z (C6602) with Tapatalk
androidfreak70 said:
Umm.. You tried another SIM on your phone?
Xperia™ Z (C6602) with Tapatalk
Click to expand...
Click to collapse
Yes i tried two different SIM cards one from O2 second one from T-Mobile -> same issue, but both are "recognized" i can even open "simcard"apk with info about SIM card but i still have no signal.
I have exactly same Issue as user here https://www.youtube.com/watch?v=dPkdwT6cp_w ... i am really out of ideas
SĐF said:
Yes i tried two different SIM cards one from O2 second one from T-Mobile -> same issue, but both are "recognized" i can even open "simcard"apk with info about SIM card but i still have no signal.
Click to expand...
Click to collapse
Strange..
Try to go to settings >> more... >> mobile networks >> service providers and then select your carrier name and see if works or not
Xperia™ Z (C6602) with Tapatalk
androidfreak70 said:
Strange..
Try to go to settings >> more... >> mobile networks >> service providers and then select your carrier name and see if works or not
Xperia™ Z (C6602) with Tapatalk
Click to expand...
Click to collapse
Not working, check the video i posted before, phone can't find any service provider and i am not able to switch to manual... its reallly strange, i am trying to find some fix or something for about 4 hours + searching google, xda, youtube, ... and what i found? A lot of people with the same issue but no fix ...
After another X hours of looking for issue i found the reason - Antenna Board is probably faulty, i have found the same issue at some iPhone forum when the user had no signal (same as me) and fixed it by changing this little board located at the bottom of phone. But anyway if you know it won't help let me know I will post a reply when new AB will arrive and if change helped.
SĐF said:
After another X hours of looking for issue i found the reason - Antenna Board is probably faulty, i have found the same issue at some iPhone forum when the user had no signal (same as me) and fixed it by changing this little board located at the bottom of phone. But anyway if you know it won't help let me know I will post a reply when new AB will arrive and if change helped.
Click to expand...
Click to collapse
try flashing baseband
i have some problem but at me canot conect to 2G network only in 3G i can stay and i dont have so power signal at 3G at my zone anyone know what to do?
lionboy12 said:
i have some problem but at me canot conect to 2G network only in 3G i can stay and i dont have so power signal at 3G at my zone anyone know what to do?
Click to expand...
Click to collapse
in network mode enable WCDMA(preferred)/GSM
that i have but is not so powerfull signal on 3g and when try to conect in GSM give me that error could't conect to network try to put sim in phone or ......"
androidtweaker1 said:
try flashing baseband
Click to expand...
Click to collapse
Thanks for reply when i flashed .ftfJB 4.3(C6603_10.3.1.A.2.67_CE) and then flashed .ftf kitkat 4.4 (10.5.A.0.230) i think baseband was included or wasn't?
SĐF said:
Thanks for reply when i flashed .ftfJB 4.3(C6603_10.3.1.A.2.67_CE) and then flashed .ftf kitkat 4.4 (10.5.A.0.230) i think baseband was included or wasn't?
Click to expand...
Click to collapse
Did you buy an unlocked phone or is it carrier locked phone?
---------- Post added at 12:54 AM ---------- Previous post was at 12:54 AM ----------
lionboy12 said:
that i have but is not so powerfull signal on 3g and when try to conect in GSM give me that error could't conect to network try to put sim in phone or ......"
Click to expand...
Click to collapse
Try flashing another build of firmware
androidtweaker1 said:
Did you buy an unlocked phone or is it carrier locked phone?
---------- Post added at 12:54 AM ---------- Previous post was at 12:54 AM ----------
Try flashing another build of firmware
Click to expand...
Click to collapse
Unlocked, check screenshots in 1st post - > http://screenshot.cz/SQ8QK/
Could the Baseband be damaged or something? It shows some Baseband version in "About Phone" (not Unknown) ... but i dont know, i hope it isn't.
SĐF said:
Could the Baseband be damaged or something? It shows some Baseband version in "About Phone" (not Unknown) ... but i dont know, i hope it isn't.
Click to expand...
Click to collapse
I don't think there is any issue with the base band
you flashed different builds also
Can be a hardware issue, suggest you to go to a service center
androidtweaker1 said:
I don't think there is any issue with the base band
you flashed different builds also
Can be a hardware issue, suggest you to go to a service center
Click to expand...
Click to collapse
Well i can't go to service center because i lost my warranty... any other solution how to fix it? btw where has Xperia Z located Antenna for GSM ? If it is HW issue like damaged Antenna i can fix it with buying new one but i really need someone to tell me which part of the phone can make this issue to buy the correct new part not whole new phone ...
SĐF said:
Well i can't go to service center because i lost my warranty... any other solution how to fix it? btw where has Xperia Z located Antenna for GSM ? If it is HW issue like damaged Antenna i can fix it with buying new one but i really need someone to tell me which part of the phone can make this issue to buy the correct new part not whole new phone ...
Click to expand...
Click to collapse
Does not mean that the antenna is broken, can be a loose contact also
You are getting the pin prompt because the sim reader is working properly
it is unable to register to network because of antenna issue, better you show it at a mobile shop than doing self diagnosis
:crying::crying: Please Help there is no network on LTE OR CDMA on SM-950F/DS & same sim card is working in other phone with 4g
after the update of march 2020 security update this problem is caused & Yes 2g & wifi Working Fine Please Please help :crying:
try downloading 4g only app and try force 4g only
zx1202 said:
try downloading 4g only app and try force 4g only
Click to expand...
Click to collapse
already done brother but not succeeded :crying:
ankurocxy said:
already done brother but not succeeded :crying:
Click to expand...
Click to collapse
It is a long shot but go to settings/general management/reset/reset network settings, then reboot the phone.
stonedpsycho said:
It is a long shot but go to settings/general management/reset/reset network settings, then reboot the phone.
Click to expand...
Click to collapse
Already Done
Network Reset Done
Hard Reset Done
Firmware Reflashed Done
Still Nothing Happen :crying:
Please Help its its really difficult to live without internet in lockdown :crying:
ankurocxy said:
Already Done
Network Reset Done
Hard Reset Done
Firmware Reflashed Done
Still Nothing Happen :crying:
Please Help its its really difficult to live without internet in lockdown :crying:
Click to expand...
Click to collapse
I rely heavily on internet, and lose my not so many marbles left when without it, I feel your pain.
From what I am seeing trying to look into your problem, you have done all that is suggested, other than a service centre visit
Hopefully someone who has suffered but resolved this will comment and share the steps for you :fingers-crossed:
stonedpsycho said:
I rely heavily on internet, and lose my not so many marbles left when without it, I feel your pain.
From what I am seeing trying to look into your problem, you have done all that is suggested, other than a service centre visit
Hopefully someone who has suffered but resolved this will comment and share the steps for you :fingers-crossed:
Click to expand...
Click to collapse
waiting for your comment brother
Have you check your APN settings?
Replaced your SIM card? (It might work on other phones but not on yours either to not sitting properly or something else. So try replacing it.)
Take your sim card out and try this.
Do a factory reset and flash firmware with CSC file (not home-CSC file, backup first. )
Let phone boot without sim card first.
ankurocxy said:
waiting for your comment brother
Click to expand...
Click to collapse
Done Both the things
same sim card is working in all the other phone at my home
factory reset done with the csc file but no result
M just pissed of with this problem
please help
ankurocxy said:
Done Both the things
same sim card is working in all the other phone at my home
factory reset done with the csc file but no result
M just pissed of with this problem
please help
Click to expand...
Click to collapse
Please check network settings if you enabled 4G or is it at 2G onlyView attachment 5002743
Sent from my SM-G985F using Tapatalk
ankurocxy said:
Done Both the things
same sim card is working in all the other phone at my home
factory reset done with the csc file but no result
M just pissed of with this problem
please help
Click to expand...
Click to collapse
You're not going to get CDMA to work on the F version of the phone as far as I know you can only use GSM that's why nothing that's being suggested is working. You need to get a GSM carrier sim card.
Edit: Samsung Galaxy Note 8 SM-N950F/DS Dual-SIM 64GB (GSM Only, No*CDMA) Factory Unlocked 4G/LTE Smartphone International Version. ... This phone*WILL*NOT*WORK*with any*CDMA*Networks such as VERIZON, SPRINT, US CELLULAR.
vash_h said:
Please check network settings if you enabled 4G or is it at 2G only
Click to expand...
Click to collapse
yes i know m from india before the ota update everything was working fine please help
ankurocxy said:
yes i know m from india before the ota update everything was working fine please help
Click to expand...
Click to collapse
Ok i am trying to understand something.
Your device is SM-N950F/DS.
You are in india.
The phone can't connect to 4g/Lte after the security update. 2G and wifi is ok.
Before the update 4g/lte is fine.
You tried your simcard on other phones is able to connect to 4g/lte.
Is this correct?
May i ask how did you update to the latest firmware? ota, odin or smart switch?
Sent from my SM-G985F using Tapatalk
vash_h said:
Ok i am trying to understand something.
Your device is SM-N950F/DS.
You are in india.
The phone can't connect to 4g/Lte after the security update. 2G and wifi is ok.
Before the update 4g/lte is fine.
You tried your simcard on other phones is able to connect to 4g/lte.
Is this correct?
May i ask how did you update to the latest firmware? ota, odin or smart switch?
Click to expand...
Click to collapse
Yes that's correct
I have updated throught ota & after problem done flashing through odin
vash_h said:
Ok i am trying to understand something.
Your device is SM-N950F/DS.
You are in india.
The phone can't connect to 4g/Lte after the security update. 2G and wifi is ok.
Before the update 4g/lte is fine.
You tried your simcard on other phones is able to connect to 4g/lte.
Is this correct?
May i ask how did you update to the latest firmware? ota, odin or smart switch?
Click to expand...
Click to collapse
any Update brother
ankurocxy said:
yes i know m from india before the ota update everything was working fine please help
Click to expand...
Click to collapse
Have you checked the settings?
Sent from my SM-G985F using Tapatalk