[Q] No service if mobile data off. - Xperia Z3 Compact Q&A, Help & Troubleshooting

Hi,
I am a Sony Z3 Compact user in China, I bought this phone from Japan, and using China Unicom as my operator. Last month, I have changed my mobile service plan from 3G to 4G, but if I checked the LTE(prefered)/3G/GSM or LTE/3G, the phone could lost its signal. Does anyone have the same question? It seems that if I flashed my phone to Android 5.0 Lollipop, this question could be solved, but my NFC function could not be used(SO-2G are using the Felica), and I need to use NFC sometimes.
Model number: SO-02G
Android version: 4.4.4
Waiting for reply. It's my first time to post on XDA, so thanks for people who could look this post, problem solved could be very thankful.

Related

LTE in Germany

Hello,
I've just bought me the Note 5 from a seller in England. Today the phone arrived to me. I live in Germany, so i bought the international version of the Note 5 (SM-N920i).
My Problem is that i only get an edge-connection. At 3G or 4G/LTE i've got no connection. Is there any solution for this?
Thank you and sorry for my bad english
-TeeJay4312
TeeJay4312 said:
Hello,
Thank you and sorry for my bad english
-TeeJay4312
Click to expand...
Click to collapse
What LTE bands does your carrier use? Have you tried contacting your carrier to make sure LTE is enabled for that phone? When I switch to my Sony I have to get with my carrier to enable LTE on that phone.
TeeJay4312 said:
Hello,
I've just bought me the Note 5 from a seller in England. Today the phone arrived to me. I live in Germany, so i bought the international version of the Note 5 (SM-N920i).
My Problem is that i only get an edge-connection. At 3G or 4G/LTE i've got no connection. Is there any solution for this?
Thank you and sorry for my bad english
-TeeJay4312
Click to expand...
Click to collapse
Hello,
I live in Germany too, and I have the 920C variant of the phone. I don't have any issues with Vodafone and I'm having 4g with no problems at all!
Tapatalked with my Note 5
Hello, thank you much for your answers. I forgot to answer here, but the seller has send me a list which shows the frequency supported by the hardware of the 920i.
B20 (800Mhz, which is most used frequency in Germany and also the one which i need) was not supported by it.
But finally i also got the N920c. Now everything works fine
Greetings

LTE problem with xperia ZR C5503 (baseband problem?)

Sooooo first, hello everyone !
After a fair bit of research and unsuccessfull attempt (several hours over a few days), i come to you to see if anybody can help me solve my problem.
Here is the main problem : I have just acquired C5503 white version with 32GB of RAM. It is supposed to be LTE and most of the information I can get about the LTE frequencies says that it supports LTE 800/850/900/1800/2100/2600 which is compatible with my carrier (Free mobile in France, 700/1800/2600) . I don't have the 700MHz band but it is not really deployed and I did not have it on my previous phone, which worked well in LTE. And, you guessed it, the phone is NEVER in LTE. I checked all the settings and whatnot also, they are okay. But data works well beside that.
My guess is that I don't have the good baseband version on my phone so here are the questions, knowing that the bootloader on my wperia ZR can NOT be unlocked ( ) :
1/How can I check I have the good baseband version
2/If i don't, is it possible to change it knowing that my bootloader cannot be unlocked (wanted to install cyanogenmod, so i checked) and how ?
Thank you all for reading,
Thomas.
Nevermind
Nevermind I got my answer, not the one i expected. My phone is a xperia A, the japanese version of the Xperia ZR. No wonder LTE don't work in France. The seller of the phone is just stupid.

Samsung galaxy s6 not regitered in network

Hi everyone, I'm new in this forum amd i don't know of this is the right subforum so please be patient with me, thanks!
I have a problem with my samsung g. S6 and its that after been traveling abroad for 3 months, now that I'm back in the UK, my phone wont connect to the mobile network.
I searched in the internet for all the possible solutions but none seems to work.
I bought my phone second hand on march, it was network locked and i unlocked it with the unlock pin from a trusted site on internet,it is not blacklisted and I rooted and installed tyranus rom in it. since then i have been using it for several months without a problem, on september i went travel to spain and the us and the phone worked fine in the uk, spain and the us.
But when I arrived to the UK a couple of days ago is when the problem stared.
I tryed all the possible solutions I can find in the net but nothing did works.
Any Ideas? Could it be a rom problem? Shall I try a difernt rom?
Thank you for your time and help!

Wi-Fi Calling and VoLTE on XZ3 Dual (H9436)

Hello everyone ?
Does anyone know of a way to get Wi-Fi calling and VoLTE loaded onto an unlocked, stock, non-rooted, H9436 ?.
PS: I know as a fact that my carrier supports both of them ?
Thank You
Only way is to use Xperifirm to download your regions firmware and flash it.
I know on my previous XZP I had a G8142 dual sim (Hong Kong) and flashed it a G8141 Single Sim (Australia) Firmware without any issues.
Unfortunately Sony Mobile has pulled out of Australia and there no Australian firmware for the XZ3. So I'll never get VoLTE on this phone now.
kw0n2k said:
Only way is to use Xperifirm to download your regions firmware and flash it.
I know on my previous XZP I had a G8142 dual sim (Hong Kong) and flashed it a G8141 Single Sim (Australia) Firmware without any issues.
Unfortunately Sony Mobile has pulled out of Australia and there no Australian firmware for the XZ3. So I'll never get VoLTE on this phone now.
Click to expand...
Click to collapse
Did you see any battery life improvement since the second modem is not being used? ?
Is there no risk of bricking it?
It's gonna be horrible having all of my carriers crap on my phone
Maybe you could try using the firmware of another region that has it
ramy_nassif said:
Did you see any battery life improvement since the second modem is not being used? ?
Is there no risk of bricking it?
It's gonna be horrible having all of my carriers crap on my phone
Maybe you could try using the firmware of another region that has it
Click to expand...
Click to collapse
XZP battery life became one of the best phones I've had after the last Oreo update. Since Pie it hasn't improved much. I would have the phone synced to my android watch all day. By the time i hit bed, i'd have 35% battery life left.
My current XZ3, would be dead by the time i get home from work, yet its supposed to have a bigger batter 3330mah vs 3230mah.
You dont have to use your specific carriers, just your country. Using the Generic Australian ROM I got VoLTE and VoWiFi working on Vodafone AU network.
At this current time no firmware is able to make VoLTE work on XZ3. Simply cause Sony Sucks now.
Might even sell this phone off or return it, as I've only had it a week.
kw0n2k said:
XZP battery life became one of the best phones I've had after the last Oreo update. Since Pie it hasn't improved much. I would have the phone synced to my android watch all day. By the time i hit bed, i'd have 35% battery life left.
My current XZ3, would be dead by the time i get home from work, yet its supposed to have a bigger batter 3330mah vs 3230mah.
You dont have to use your specific carriers, just your country. Using the Generic Australian ROM I got VoLTE and VoWiFi working on Vodafone AU network.
At this current time no firmware is able to make VoLTE work on XZ3. Simply cause Sony Sucks now.
Might even sell this phone off or return it, as I've only had it a week.
Click to expand...
Click to collapse
Yeah battery life on this phone is just horrible
My mom has the XZP but she's stuck on Oreo cause Sony mobile abandoned the region, I'm planning on flashing a different region's firmware on my next trip home.
I thought of my carrier's firmware cause in France (my profile still says Lebanon cause I didn't bother changing, I moved to France a couple of months ago) the only unlocked version they sell is the dual sim one, the one sold by operators is the single sim one but they install their own firmware, and also because on their support website that mentioned that the xz3 that they sell is compatible with VoWiFi and VoLTE.
If you return it what would you get?
ramy_nassif said:
Yeah battery life on this phone is just horrible
My mom has the XZP but she's stuck on Oreo cause Sony mobile abandoned the region, I'm planning on flashing a different region's firmware on my next trip home.
I thought of my carrier's firmware cause in France (my profile still says Lebanon cause I didn't bother changing, I moved to France a couple of months ago) the only unlocked version they sell is the dual sim one, the one sold by operators is the single sim one but they install their own firmware, and also because on their support website that mentioned that the xz3 that they sell is compatible with VoWiFi and VoLTE.
If you return it what would you get?
Click to expand...
Click to collapse
Well I haven't returned it, cause I still don't have my XZP back from warranty repairs. Appears Sony is abandoning alot of regions. Though they are still releasing updates for those phones which is a good thing.
I love Sony Xperia phones, by far the best quality handsets in terms of workmanship, etc. But how they go about their software implementations has a lot to desire.
Hoping one day Sony deploys Carrier integrations like alot of the smaller manufacturers i.e Asus, Huawei, Oppo and Nokia, who are able to enable VoLTE without any specific region firmware.
kw0n2k said:
Well I haven't returned it, cause I still don't have my XZP back from warranty repairs. Appears Sony is abandoning alot of regions. Though they are still releasing updates for those phones which is a good thing.
I love Sony Xperia phones, by far the best quality handsets in terms of workmanship, etc. But how they go about their software implementations has a lot to desire.
Hoping one day Sony deploys Carrier integrations like alot of the smaller manufacturers i.e Asus, Huawei, Oppo and Nokia, who are able to enable VoLTE without any specific region firmware.
Click to expand...
Click to collapse
Yeah Xperia phone are really great, they have a mix of build quality and balance between software features and performance that just isn't available with other phones in the Android world (not talking about iPhones cause iOS is just BAD). I remember when I switched from my Z1 to a note 5, I was so disappointed. Wasn't sure if I wanted to get the Z5 or the note 5, so I decided to see why people praise Sammy, what a mistake ??*.
Going back to the main subject of this thread ?
I hadn't flashed my phone yet cause I had been pretty busy with school and wasn't sure if I should flash my carrier's firmware or not. So last week I got an update. A couple of hours later I went into the settings to tinker with stamina mode. And there I see it. A big banner on the top telling me to activate Wi-Fi Calling. So of course I did but couldn't test it directly cause I was out and about. When I got home (I have really bad reception in my dorm room, when people call me they go directly to voicemail cause I don't have any reception), I tried to see figure it out, but apparently it's just a placebo, it doesn't actually do anything ?

xperia 1 ii

Hi there
I just bought a xperia 1ii. I am in China, so its OS is the standard Chinese customized version by Sony, thus I lost a lot of fun from real Google kits. do you have the sony official ROM of internation version or the US version? I really miss the old phone I bought in US with full Google service.
I don't care about the 5G function. I am still using the 4G service from CMCC now. thanks a lot for any help or suggestion.
Which model? XQ-AT72?
You could try flash AT51/AT52 Customized HK version (download via XperiFirm), at your own risk (unstable maybe due to hardware difference, hence bricking, signal loss, etc.).

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