Samsung a5 2017 (SM-A520F) call and messages not working

Community Forum
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In your first post, you said :

So (mobile data) “LTE only” is the problem !..

Calls needs GSM i presume…
SMS too

MMS may use data, but also UMTS or CDMA and are linked SMS

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What about your carrier / provider APN settings ?

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hey i’m thinking about something.
are you sure of the model of the phone ?
i had s5 live demo unit (demo shop phone) and that device did not have modem chip installed.
could it be a similar device ?

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Oh i messed up its a A520S but /e/ os also supports this model. What are u suggesting here?

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i think you should try one of these firmware Download Samsung Galaxy A5 2017 SM-A520S SKC Korea (SK Telecom) firmware

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and take the time to test call, sms and any other fonctions like sensor, camera etc

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In witch country do you live ?

Because the unic Samsung firmware for this model is korean, if you live in an other country, you may have to do a combination

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I’m in S.Korea. Yeah the Stock ROM is working now uhm im having problems with heimdall and install twrp. Even if i install the twrp with Odin it boots to the stock rom samsung recovery.

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c’est un truc con, mais pas evident a chopper…

…NOW COMES THE CRUTIAL STEP !..

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Thank you. I did everything in your post but it still doesn’t work. The Mobile Services still doesn’t work in /e/ OS. I downloaded the stock firmware for A520S. It does work on the Stock Rom. I dont know what’s wrong maybe its the /e/ OS?

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Unfortunately still doesnt work.I think I need the SM-A520L. The one that i have rn is Samsung A5 2017 SM-A520S which is for SKT. And the SM-A520L is for LG U+ which is the same SIM I’m using. Idk if it does affect it tho cuz the SM-A520S that I have is already carrier unlocked…

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Witch options are proposed to replace the “LTE only”
setting ?

Witch APN are proposed in your internet settings ?

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If 520S & 520L have the same chipset,
You may try by changing CSC on the phone (with the help of TWRP file manager),
then flash the Firmware you want (using heimdal if Odin don’t want to because model number) ?

I am not sure it works (between differents models), but nothing to loose,
Samsung is hard to brick (using combination firmware allow to restore to stock android or reinitialise bootloader to stock version)
if you want to play with…

more safe is to find another phone matching your carrier

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in eos, is your imei appears ? if you don’t know yours, is it credible ? (i mean, not a bunch of 0)
to install eos, what did you wipe ?
wait, is that a dual sim model ?

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Hello,
I just install eOS on the same model (A520F) and i can call but sometimes I can’t receive the calls, and the messages don’t appear. I can’t send message.

Edit: I just change the LTE mode for the 3G, and the call are entering.