A bad problem with s6 g920i 5.1.1 - Galaxy S6 Q&A, Help & Troubleshooting

Hello. I have a big problem with my s6. I have 5 days with poor signal to call or send sms. But my 4g and 3g is ok. I try with a oficcial software or the roms that exist for my model but dont helm me. My signal is poor and tha mayor part of time just have emergency call and i dont have signal to sms and calls. But my lte is ok and my mobile internet. Everything is ok
Just the signal problem.

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[Q] I can' call land phones from my Galaxy S II

Hi All,
I can' call to Land Phones from My Galaxy SII. But Can call to any mobile number. I changed the sim to other phone, it is working with other phones. The problem started 2 days ago. Can Anyone advise.
Thanks in advance.
Binoj
Update!
Problem in more specific.
The problem is I can't call to land phone numbers only in 3G enabled area. When I go to 2g coverage area I can call to land phones. In 3G coverage area can only call to mobile phones only. Please help

Z5 E6853 T-Mobile data disconnecting on call and dropping signal in LTE

Hi all,
I am using a Z5 E6853 Premium with t-mobile LTE APN settings fast.t-mobile.com - LTE seems to be working, but drops when I call.
My wireless reception is dropping every once in a while as well. Anyone else experiencing this issue?
Not sure if it has to do with the APN settings... I am testing out the other tmobile APN (epc-t-mobile.com). My preferred network setting is LTE (preferred) / WCDMA / GSM
Any help would be great, thanks!
LTE drops during calls because the Xperia Z5 line is not certified by T-Mobile for VoLTE (and probably never will).
As for the signal dropping I experience much of the same, my signal is mostly in the -90~-100dbm (which is terrible signal, i think contributes to battery drain).
I had a chat with a t-mobile rep and nothing they tried worked, so i'm not sure what exactly is the issue there.
exvargos said:
LTE drops during calls because the Xperia Z5 line is not certified by T-Mobile for VoLTE (and probably never will).
As for the signal dropping I experience much of the same, my signal is mostly in the -90~-100dbm (which is terrible signal, i think contributes to battery drain).
I had a chat with a t-mobile rep and nothing they tried worked, so i'm not sure what exactly is the issue there.
Click to expand...
Click to collapse
That level of signal is actually acceptable for LTE and my old m8 reported similar dbm, but was tuned so it displayed more bars. Wish SONY would give us a dbm adjustment or someone knew how to adjust it... I do think it is tricking the radio to actively search for 'better' signal leading to battery drain
I'm in the exact same boat, hoping someone has a fix otherwise will need to get a new tmobile specific phone..
I had to switch to straight up google voice for all my calls...people get dumped straight to voicemail for me ..

No data While on Phone Call!

I have bought the Galaxy S6 G920F, and noticed that while I am on a phone call, I cant use the mobile data, it shows that it is connected to H+ but no data is sent or received.
My carrier is on GSM network not CDMA, on my previous phone , the LG G4 I was able to use the data network while I am in a phone call!
any suggestions or solutions?
Thats because SAMSUNG in their infinite wisdom , have removed the Dual Antenna from this model.
So you cant have Data AND voice at the same time.
Dumb as ****.
https://www.youtube.com/watch?v=PL4HTYVrgko
Works fine on my phone, I even had 4G voice a few times so it didn't drop to 3g speeds during the call meaning I could make use of 4G during a call.

LG G3 AT&T D850 SiGNAL RECEPTION ISSUES

Hello everyone! I've bought a used LG G3 D850 AT&T version. The problem is that whenever I'm inside any building or where the signal reception is low, the phone would simply give the "Emergency Calls only" notification. I've checked my sim card, my mobile network settings etc. but to no avail. Often when somebody tries to call at my number the operator says the dialed number is powered off whereas I'm getting full signal! This is so frustrating, I'd be glad if someone can help me here!

Signal problem unlocked with wind(ita)

Problem is not about signal force or 2g 3g 4g or area with no signal.
Its a complete problem that take away signal (sim call SMS and data).
And it appen any time without advice or any sense.
From 4g yt In 1440p to 0 signal.
I have read around of similar problem for g3 and all other g4
Found also a yt Video that give a metode with adb to solve it.
Any idea?
The phone have near 2yr from imei but it's refurbished with 1yr garancy from eBay. Bought recently arrived yesterday 1day of use
I cant found 4G LTE
my signal can"t found 4G
I haved jast 3G H+
Does it happen with only one SIM?
Or have you tried inserting other SIM cards and does this with other networks?

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