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3g problem on samsung galaxy ace

i have Samsung galaxy Ace s5830M
my problem is with 3g internet
after i subscribe with 3g i face a problem that's my phone cant get the 3g it only show 2g internet with slow speed show only letter E instead of 3G or H
the setting for 3g subscription 100% right
the 2g mode setting is unchecked
my place is covered with 3g network
i tried to put my SIM card on another identical phone Samsung galaxy ace and the other phone is working very good with 3g coverage showing H on the status bar while my phone only show E
i tried by reinstalling the software and the problem still exist
i tried by entering *#*#4636#*#* and change the setting to Wcdma proffered i got the same result
and when i changed the setting to Wcdma only i got no signal, no connection
i tried to connect with the network operator telling me that there is no problem with connection the problem is in the phone
any one can help me to fix this problem

Sending it back to Samsung or your carrier is the best solution if you do not know what to do.

[q] not registered on network

HELP!!! HELP!!! HELP!!! HELP!! HELP!!! HELP!!!
My mobile (SAMSUNG GALAXY NOTE GT N-7000 ) not getting signal.... some times it is getting 1 or 2 points but when i tried to make a call it is showing " NOT REGISTERED ON NETWORK"..... My SIM working in all other mobiles.. But all other SIM cards not working in my mobile.....
It woked fine before. I gave my mobile in samsung care to repair my mic.... they repaired mic but when i take my mobile back and attempt to make a call for first time its showing "NOT REGISTERED ON NETWORK".... I immediately showed them... they said its the problem of My sim card, But after I tried with many sims it is not working..... Help me how to fix it...... Is it a software problem or Hardware problem.....

you may need to get the carrier APN settings reinputed into the phone, without the carrier settings the phone will not connect to the data & sometimes with have issues with other connections.

Galaxy S6 Duos Network Issue

I need to solve an issue pertaining to my Galaxy s6 duos. The problem is that sometimes my phone's sim 2 wont work, although it is registered on the network but it won't make a call or send a message neither would it receive a call or message. After i put the phone in airplane mode and switch it back online,then the sim2 starts working. Please help me in solving this issue. What could be causing this problem?

Hmmm set sim 2 only to 2G network and check if it losse connection... (I suspect when phone leaves a 4g area and it has to connect to 3g sometimes stuck at searching ...)

I have an issue that whenever i use mobile data on sim 2 it connects to 2g. I need all the time to go and change from 3g/2g to only 3g then back again to get 3g working. Also noticed that if 3g is not in range it switches to 2g but when its in range it does not automatically take 3g.

HELP!! 3G Mobile Data not working. Somebody please help..

By default the Network Mode is on LTE/WCDMA/GSM (Auto) mode but when I switch on mobile data, nothing shows up, no data connection. And sometimes even no voice service, it shows "emergency calls only".
But when I switch to GSM only mode, EDGE connection shows up (which is normal), Internet goes normal but very slow with EDGE connection (Sometime GPRS).
I tried to swap SIM with my friend, and their SIM works fine with my phone under LTE/WCDMA/GSM (Auto) mode and I do get HSPA and HSPA+ Signal. (Network provider setting changed to their network provider)
I contact my network provider and they said my SIM has no problem, they did insert my SIM into their device and found no problem with my SIM on their device, they get HSPA+ signal with my SIM. And they ask me to take my phone to check for hardware failure.
I checked the APNs and network provider setting, reset back to Stock ROM and clean install my ROM several times, still have no luck
My subscription do have HSPA connection and has been using it for months at the same location, but now it just stay at EDGE and GPRS only.
Is that really a hardware problem? Or could it be SIM problem?
Device Info:
Device: Samsung Galaxy Ace 3 LTE (S7275R)
ROM: CM13-20160315build
Recovery: TWRP 3.0.0.0
Xposed: Xposed v80 sdk23 arm
Network Provider: redONE

Hui0531 said:
By default the Network Mode is on LTE/WCDMA/GSM (Auto) mode but when I switch on mobile data, nothing shows up, no data connection. And sometimes even no voice service, it shows "emergency calls only".
But when I switch to GSM only mode, EDGE connection shows up (which is normal), Internet goes normal but very slow with EDGE connection (Sometime GPRS).
I tried to swap SIM with my friend, and their SIM works fine with my phone under LTE/WCDMA/GSM (Auto) mode and I do get HSPA and HSPA+ Signal. (Network provider setting changed to their network provider)
I contact my network provider and they said my SIM has no problem, they did insert my SIM into their device and found no problem with my SIM on their device, they get HSPA+ signal with my SIM. And they ask me to take my phone to check for hardware failure.
I checked the APNs and network provider setting, reset back to Stock ROM and clean install my ROM several times, still have no luck
My subscription do have HSPA connection and has been using it for months at the same location, but now it just stay at EDGE and GPRS only.
Is that really a hardware problem? Or could it be SIM problem?
Device Info:
Device: Samsung Galaxy Ace 3 LTE (S7275R)
ROM: CM13-20160315build
Recovery: TWRP 3.0.0.0
Xposed: Xposed v80 sdk23 arm
Network Provider: redONE
Click to expand...
Click to collapse
I have exactly the same problem! Same ROM as well. Update to various CM13 releases, factory reset to stock kernel and rom but nothing helps.

c811 setting for using data on non verizon sim cards

I installed the APK and the Problem for "SIM from unknown source" is ressolved. But i need help with few more things please.
1) the Data service will not work only incoming and outgoing is working.
2) i want to upgrade the OS , it is stuck on 4.2.2 . How can i do that.
I have a Casio G'zOne Commando 4G LTE C811 (Verizon Wireless)
And i am using it india with Vodafone Carrier.
also tried the step , first Enable the Mobile Data , Then Enable the Airplane mode, Then after 5 mins disable the Airplane mode. But no good it remains on the plain network bars. no Edge or 3G or 4G signs no Data connection Arrows.
.
Please help .
Regards,
Dinu Gaikwad
Mobile :+919819455014.
Email:[email protected]
BB Pin: 2BE6C17C