NETWORK ISSUE #GALAXY M21

[Members_3Ofphlv]

i have two sim card 1)vi ,2)jio

. .when i insert both sim in my m21 (sim 1-vi /sim 2-jio) .vi network started 4g >3g>2g . Continually switching single in every 3-4mints .  ..not stable.. but 

if i remove the jio sim and insert only vi sim then its works fine .....if i insert both sim again its started again .

i already checked multiple time ..also check on another phone .vi work properly..

i think its samsung fault. not vi ....their phone can't handle dual sim with dual 4g signal. 

if anyone also facing this problem on galaxy m21 or any other model kindly comment on this post .

disclaimer: bot people don't reply please..don't tell me thats kind of **bleep** things. 

• reset your network settings 
• reset your apn settings 
• reset your phone 
• remove your sim 
• check on safe mode .
• **bleep** bla ......

ONLY REPLY real people who actually facing this problem. 

[Subhash_M21]

No bro 😪, probably you are wrong, because i have using two jio sim (4G) ,
And i am never facing this type type of problems...

But in oldest model like j7 prime ...
This problen is facing ....

[Subhash_M21]

But yes, I feel that samsung is slow 🐌 in network speed. 😑
When other brands running continuously on network , then samsung is stopping ✋ 🙄 😒

[SulochanaKumariNoDMs]

Yeah! This problem can happen with any model of Samsung. It sometimes happens when mobile network is not properly set. For example, in M30 , you have to go to Settings-> connections - mobile networks & then enable 'VoLTE Calls' 'Network mode' - 'LTE/3G/2G (autoconnect)'. You also have to go to Messages app - > settings-> more settings-> text messages & then Tap on 'Message centre' to check if it carries correct Message SMS centre number of your service provider for area in which your phone number is registered. These two steps ensure that both sims work smoothly for making/receiving calls & sending/receiving SMS. See if this information helps you to resolve your issue or not. If you find my suggestion useful then please accept it as useful solution by tapping on three dots on right hand side of this post.

[SulochanaKumariNoDMs]

You also have to tap on ##002# string on your keypad & make a call with either of your two sim/phone numbers. You'll then receive a message 'MMI code started' followed by another message
'Call forwarding
All
Erasure was successful '
This step should enable both sims to work. This resolves the problem of the sim that doesn't function when inserted alongside second sim, but the same functions when it's taken out & inserted in other palmtop/phone handset. For example, if you've two sims vi & jio. You insert both sims in palmtop/phone handset number 1. You'll discover that only one sim is functioning, let's say sim jio. sim vi isn't working. But, if you insert sim vi in another/second palmtop/phone handset number 2, you're surprised to find that sim vi is working, you are able to send/receive calls/messages with sim vi in second palmtop. This problem is resolved by tapping on ##002# string on your keypad. You also make a call to customer care of your service provider if your problem isn't resolved by steps mentioned by me.
If you find my suggestions/tips useful as an answer/solution to your question/problem, then please accept it as useful answer/solution by tapping on three dots on right hand side of this post.

[Members_3Ofphlv]

lol 😆 🤣 😂 😹 

[SulochanaKumariNoDMs]

A friend of mine had this problem. She resolved it by following my suggestions. Anyway you're free to lol🤨!

[PrajwalKasture]

Aapke pass vi Sim Hai to usme data alerts aate Hai kya 😑

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.

Thank you for writing to Samsung.

Warm Regards, 
Samsung Customer Support  

[kiranraj2003]

Sss i am also facing this problem when bought this mobile so i turned off one sim and using only one sim 🤧