Cannot send MMS on Xperia Z1S

[KittyLove]

Hi!

I am new to this forum

All day today I have been having trouble sending MMS [picture messages] messages. I cannot send any photos to anyone. It immediately says "could not send" with the red SMS notification. I have tried turning on and off the phone repeatedly, turning on and off my WIFI, and nothing has worked. I even tried sending myself a picture and it fails. The only thing I can think of is I had my phone on my STAMINA mode from last night to this morning for the first time. I tried the mode because I kept getting a notification saying I should use it, and I tried it. But then this morning I couldn't send any MMS this morning. I took it off and it still won't allow me to send any MMS.

How can I fix this? I send a lot of MMS and I am pretty shocked at this.

[Uliwooly]

Settigs > xperia > internet settings 

also make sure that your data is on (not wifi)

[KittyLove]

Hi there, thank you for replying. I have been sitting here looking for the "internet settings" under my settings and I cannot find that

When I go under settings, I see the following:

WIRELESS & NETWORKS

Wi-Fi

Bluetooth

Data Useage

Xperia Connectivity

More..

DEVICE

Personalization

Call Settings

Sound

Display

Storage

Power Management

Apps

PERSONAL

Location services

Security

Language & Input

Backup & reset

Setup Guide

ACCOUNTS

which lists my apps

SYSTEM

Date & Time

Accessibility

ABout Phone

Am I missing it? Or not clicking under the right option? I have looked under several of them and cannot find "internet settings." I asked a friend who has the Z1S to check as well and they're not seeing that option either.

[Uliwooly]

My bad

Settings > more > Internet settings 

if that doesn't work then 

settings > more > mobile networks > access point names > Menu > add New > enter the settings manually > menu > save 

[KittyLove]

Hi there, thanks for such a quick reply. I am not too tech savvy when it comes to settings, so please bare with me

I am not seeing this first option you gave: Settings > more > Internet settings 

And this second one, 

settings > more > mobile networks > access point names > Menu > add New > enter the settings manually > menu > save 

[Uliwooly]

Which network/carrier do you have? and which country ?

[KittyLove]

I have T-Mobile and I am in the US

[Uliwooly]

Name:T-Mobile.

Apn:fast.t-mobile.com

proxy:216.155.165.050

port:8080

MMSC:http:mms.msg.eng.t-mobile.com/mms/wapenc 

MMS port:8080

MCC:310

MNC:260

 APN protocol:IPv4

APN roaming protocol:IPv4

Menu > Save > then Menu > add New

Name: T-Mobile GPRS

APN:epc.tmobile.com

MCC:310

MNC:260

APN protocol:IPv4

APN roaming protocol:IPv4

[jeroensky1972]

The Dutch site has a help for setting up mms settings. I cannot find that on usa site.

T-Mobile has a service to send all the correct settings as sms, so that you configure it with one press on a message, but this seems unavailable on Sony devices (I think only on apple/samsung/blackberry).

I cannot find a mms settings help on your region:

support.t-mobile.com/community/phones-tablets-devices/android/sony-xperia-z1s/content

But i do have a link from the Dutch site. But their config is different from what uliwooly wrote above.(possibly because it's for Dutch users)

I'll deeplink to start of mms settings, step by step. (volgende = next in Dutch) it has a good to understand animation:

www.t-mobile.nl/toestelhulp#/sony/c6903-xperia-z1/mms/usecase/handmatig-instellen/2

(use googletranslate if nessesary (Dutch to English)

Best way is to call t-mobile in your country and verify the settings of Uliwooly above this posting.