No network provides on Xperia Z3 Dual

Hi everyone
I got yesterday that problem my phone detect the names in Sim card but can't get network signal and can't select it manually or change the network type from lte to GSM or any other option
I tried the other Sim slot same problem
Is it hardware or software problem please help

I suggest that you try to repair the phone software using PC Companion..
Before repairing your device you may want to backup your information first. Check out this topic for more information on how to.
How to backup?
If the issue should still remain I think that this needs to be examined and fixed at a repair center. For more information about how to submit your phone for repair and where, contact your local support team.

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Many Xperia M2 Dual has Manufacturing defect in SIM 1 slot with WCDMA only mode.

Hello, I have problem with Sony Xperia M2 Dual mobile handset. Whenever I switch to WCDMA only mode it shows no network and this issue occurs in SONY phones only. Same sim cards work properly in other handset and even I have changed the SIM card also. But still getting same issue and Sony engineers at service centre are claiming that it's network issue. How is it possible ????????????????? Please find the attached screenshot. This issue occurs only on SIM1 slot. SIM2 Slot is working fine at any network selection mode (i.e. WCDMA only, WCDMA Preferred / GSM & GSM only). The exact steps to reproduce the issue are as below.1. Put SIM card in SIM Slot 1 in WCDMA mode only.2. Put the SIM card in SIM slot 2 in GSM only (In this handset, At a time, You can put only one SIM card in WCDMA mode only.)3. Make a call from SIM2 & continue the call upto 15-20 mins.4. THEN DISCONNECT THE CALL5. and immediately (within 1-2 mins.) try to make the call from SIM1.6. It will loose the network signal in SIM1 slot7. It will never get a signal in SIM1 slot until you restart the phone or put the phone Airplane mode on and then off. I have tested this issue in 3 brand new handsets. Anyone please guide me how to report this issue to technical team at Sony. Thanks,Amit Keskar

I have reported this issue to service centre. however service centre guys are claiming that this is network issue.
I have tried these same Sim cards in my Samsung and friend's Micromax mobile. The Sim cards works properly without any issue.
This clearly shows that there is an issue with Sony Xperia M2 dual.
can anybody in this forum tell me what should I do if service centre guyz are not getting my point or they are not understanding the situation ????
I have sent several emails to Sony's support centre. I didn't get a single reply from them.
Thanks,
Amit Keskar

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Hi aapdesai,
Greetings! At your convenience, please reach out to our colleagues at Sony Mobile for further assistance with your question. You can reach them at this site: http://www.sonymobile.com/global-en/support/contact-us/contact-info/. Thanks for your message today!

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http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

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Greeting guys
I recently switched to andriod with the new xperia z3 dual, the battery drains very fast. its abnormal, please look at the usage , your help guys is very much appreciated. i still didnt start using it heavly , instagram and whatsapp are being used occaisionally only.

Given the power usage on the screens you get 9.5 hours on 14% of battery.
Assuming that battery is discharging lineary you should get about 68 hours of usage.
68 hours is 2.8 days so it's more than Sony claimed in its advertising.
Standby (deep sleep) at about 70% of time is pretty normal. It looks really good.
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taken from https://support.mozilla.com/en-US/questions/826858:
''This issue can be caused by the presence of leftover files in the Firefox program folder (defaults\pref) like a file all.js or firefox.js''
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https://support.mozilla.com/en-US/questions/815130?page=2#answer-185385''
Check and tell if its working.

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SIM card has been taken out and put back in.
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Apparently this occurs when Firefox has problems with security certificates. There have been a few questions about this. I will try to get advice about this.
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Welcome to the Apple Community.
Please provide a little more detail, such as what you are trying to do when this occurs and exactly what the message says.

No network provides on Xperia Z3 Dual

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