Database Users

Not receiving calls on Hermes, but still on other phones

Hallo,
I have a world-wide gsm version of the htc Hermes. The device is simlock-free and always has been. I put the official, albeit leaked, WM6 rom on it and it works great. But: last week I switched providers (for better data plans) and here is the result:
Data connection works just fine
SMS works just fine
But, I can hardly make calls and I don't receive any. The problem is not the network, because I switched phones (I put my SIM in a €26 SamSung phone which I use when I go camping) and I receive all of the calls. When someone calls me, they hear silence for about 30 seconds and then end up with my voicemail.
Any ideas as how to solve this? Both my old and new carrier are GSM. The only difference between them is that my old carrier (Belgium, Proximus) uses has a 3G/HSPDA network whereas my new carrier (Belgium, MObile Vikings; uses the network of BASE) has an EDGE network. Both operate on Dual Band.
EDIT: Would a radio upgrade do any good? If so, any suggestion for a radio version?
Thank you!

Come on, 80 views and no reply. Someone must have had an idea!

I did a radio upgrade (1.48-> 1.50) but that didn't solve the problem. Any other ideas?

I have TyTN and similar problem. Installed WM6, and worked fine for a 6 months. Few days ago problem (Strange?) started. I have GSM signal, I can make calls, I can receive calls from fixed lines and other GSM operators, but I can't receive calls from users of my domestic network?!? They get info Connection error? Please, HELP.
Also, when I ask request service for Call Barring I get info "Can't read specified service..."

Change the Sim
Long shot but have either of you thought to get a new sim from your current provider (port your number across if necessary) and see if that works?
WB

I've changed SIM card, it's still same problem! But, with a SIM card of other mobile operators I have no problem.

kris1975 said:
I've changed SIM card, it's still same problem! But, with a SIM card of other mobile operators I have no problem.
Click to expand...
Click to collapse
Sounds like a problem that's related to the network provider you are using. Have you chased down their technical dept for help? All else fails, move providers.
Once had a problem where I could not get mobile signals at home but could everywhere else. Turned out my service provider had issues with broadcasts to the cell near me.
They fixed it and gave me my charges back equal to the time the system had been out.
Good luck with it.
WB

Can't make calls when on LTE mode

I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.

Is the phone set to LTE only? If it is, does the carrier support VoLTE?

thahim said:
I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.
Click to expand...
Click to collapse
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.

ShadowLea said:
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.
Click to expand...
Click to collapse
My phone doesnt has LTE only mode so i keep it on LTE/WCDMA/GSM, still i can't make or rec calls.
Sent from my SM-N9005 using Tapatalk

How about switching to wcdma/gsm or wcdma only?

audit13 said:
How about switching to wcdma/gsm or wcdma only?
Click to expand...
Click to collapse
They work fine, but LTE.

thahim said:
They work fine, but LTE.
Click to expand...
Click to collapse
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?

ShadowLea said:
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?
Click to expand...
Click to collapse
My device didn't had the LTE option first so i did something which i don't remember now, what it was, i did it when i never used LTE, but as now i'm using LTE and came accross this problem. also i have installed a network type toggle app.

Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}

soul2eat said:
Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}
Click to expand...
Click to collapse
Network settings has that option for Network Type.

Regions  myanmar
Not receiving incoming calls on AIRTEL 4G LTE
Iam facing peculiar problem with the phone. Need help with the problem.
I am using samsung note 3 LTE. When ever some one tries to call me, my mobile is Not reachable or out of coverage area even when my mobile is in my hand , perfectly working with the second sim. outgoing calls are working fine. Again, when I am in call, then if any one tries calling me, then I get call waiting. So incoming call waiting is working for me. But incoming calls are not able to connect. LTE data is working fine though incoming calls are not working. 
Tried the following but no luck. Problem still persists:
1. Reset phone and erase all data
2. Hard reset phone (volume down + poweroff and clear all data in drive)
3. Tried changing SIM to second slot
When I switch the sim back to 3G mode or 2g mode , incoming calls are working perfectly fine . I googled it and found that most people had same issue and was resolved on switching back to 3G or 2g . 
But I need to use 4g . Please tell me a solution.

I had that same issue until I took my note 3 to Rogers and they said that the note 3 doesn't support Lte

Your rom must support VoLTE.

I would unroot and go back to stock firmware, and see if problem still happens,? if it does ,its most likely the sim card.sd card reader slot, (flex cable),my Galaxy s4 had the similar symptoms , but LTE would work with a custom rom, but not if I used stock firmware, replacing sim card reader flex , just google your mak and model and search ebay. mine cost a few pounds for a decent quality part, so dont go rushing to buy the cheapest. No problems since replacing that part, even after resetting phone 3 times to see if it was a fluke. I know its a bit late for a reply, but this actually worked , I am 99% sure it would work for anyone else who has this problem with lte not connecting when 3G, and 2g do connect. If you have tried swapping sim cards, putting sim in another phone,, etc,etc. this part mentioned(sim card/sd card reader) is your culprit. Took me just over 5 hours of testing to find the solution. thanks and fair well android users
---------- Post added at 06:49 AM ---------- Previous post was at 06:24 AM ----------
For many people having issues with LTE not connecting and diverting to voicemail on android, I am here to offer a solution to your woes. I have a Samsung Galaxy S4, GT-I9505, and recently in in 2018 in July, I had the same problem, phone calls connected on Gsm, Wdcma, BUT when I tried LTe mode, NOTHING, WENT STRAIGHT TO VOICEMAIL.Anyway I tried almost everything mentioned on certain websites and forums, with some luck, Changing LTE mode to GSM worked, and I could receive and hear phone calls. So I investigated further, I tried re flashing stock firmware, factory resetting phone.(nothing worked). I then rooted my phone and flashed a custom rom (do not try this) as it could damage your device if flashed wrongly. Yeah, so I flashed a custom rom, and low and behold problem disappeared, so I used my phone on LTE for 2 days, with no problems, I then decided to go bacjk to stock firmware, ...problem came back, not connecting to LTE mode..........being as patient as I can be, never gave up, and had a spare phone which was dead, just laying in the drawer, ..so ,I took phone apart and thought, it must be where simcard contact make contact with sim card reader contacts ( broken sim card /sd card reader part, and was I wrong, no, it actually was the sim card reader part which coonects with th motherboard, Voila, I am 99% sure if anyone else has this problem with any android that has LTE capabilities, and you know its not the sim card, then try this fix first, MAKING SURE YOU GET SOMEONE YOU KNOW TO HELP YOU , IF YOU ARE UNSURE OF WHERE TO BUY AD HOW TO FIT. hope this has helped,and I know it is a long thread, but hopefully it will be a solution that works for whoever reads and trie this, over and out. yours in sincerity, Tech82, from Surrey, England.

poddy82 said:
I would...
Click to expand...
Click to collapse
You are only 3 years too late. No big deal !
Sent from my Galaxy Note 8 using XDA Labs

In fairness post might be useful to some .
Where it is actually the sim holder .
But 99% of the problems are not the sim holder .
Though very odd that S4 user makes only one post and that's on a Note 3 forum not his phones forum .

i am facing the problem with my LGF180

This is Note 3 forum not your phone .

*DUAL SIM* LG V20 users: Please test 4G/3G capabilities and report your findings...

Hi guys,
For anyone with a dual SIM model of the LG V20, can you please do myself and others a big favour?
I need to determine the phones capabilities and functionality when it comes to dual sim capability. We know this is only dual standby, but I need to determine a few things. Can someone please answer these questions ONLY if you have this phone and ONLY if you've tested it?
1) Can a 3G phone (voice) call be received on a SIM whilst the other SIM's 4G data is in use (Y/N)?
2) If yes, does the 4G data SWITCH OVER to the other SIM to allow that voice call to come through, or:
3) Does the 4G data temporarily cut out on the "data active" SIM for the other SIM to allow inbound 3G voice call?
4) Can you deactivate test to confirm with 100% accutracy only 4g and/or 3G is being used on both SIMs?
Any help from current users (or if anyone can post a video oft he settings/functionality), that would be awesome!
Thank you
RoOSTA

Please don't all jump up at once.

Top

Hi. Cant exactly verify this because in the Phillippines H990DS. We dont have voice call over 3G.
But if it helps, i have a viber account on SIM2s number. I use SIM1 as Data provider.
When i get a viber call on SIM2s number, it doesnt switch but instead uses SIM1s data.
But not entirely sure if that works the same as Voice over 3G

When one sim is in use the other is disabled, I think the only phone that does this is huawei mate 7, but that's 4G+2G or 3G+2G.

kms108 said:
When one sim is in use the other is disabled, I think the only phone that does this is huawei mate 7, but that's 4G+2G or 3G+2G.
Click to expand...
Click to collapse
Not entirely. Yes, they are dual standy by...but when 4G is active on SIM and call comes in on SIM 2, it should eityhert SWITCH the data to SIM 2 to allow call to come through, or temporarily disable 4G on SIM 1 for the call to get through. See other models that dpo this:
http://whirlpool.net.au/wiki/dual_sim_4g3g_phones
This phone has the new chipset that can allow this. Have you actually tried this, or have any images to confirm your findings?
RoOSTA

roosta said:
No it's not.
http://whirlpool.net.au/wiki/dual_sim_4g3g_phones
This phone has the new chipset that can allow this. Have you actually tested gopt any images?
RoOSTA
Click to expand...
Click to collapse
You asked a question, i help by replying, if you dont believe me, fine.

kms108 said:
You asked a question, i help by replying, if you dont believe me, fine.
Click to expand...
Click to collapse
You have the HK model, right? Makes no sense why two dozen or more other models out there with this chipset can allow 4g/3g (evenif 1 is temporarily disabled) and this new flagship doesnt.

i got the H990DS today. I have Tmo and AT&T. it has 3G standby. No matter which SIM i select in 4G the other always holds 3G.

jdubya45 said:
i got the H990DS today. I have Tmo and AT&T. it has 3G standby. No matter which SIM i select in 4G the other always holds 3G.
Click to expand...
Click to collapse
Perfect. Thanks for confirming. Sorry to be a pain in the butt but could you screenshot that on the phone and post to confirm {if signal at top left status bar shows this}?
Sent from my LG-H818 using XDA-Developers mobile app

Sure thing. :good:

..

here is my findings for a few days, i bought a data sim card (only internet) and added to my LG V20 as SIM2
1) yes, you can receive calls while the data is working on the second sim
2,3) in my case, when i receive a call from SIM1 (4G), the data SIM2 still connects between 4G and 3.5G, but in both cases the data is been cutted off and unable to do anything
(this was tested via hotspot the SIM2 and getting a call on SIM1, happened multiple occasions)
4) until now, SIM1 and SIM2 in my device works both on 4G (battery drainage is surprisingly holding up)(tested via switching between SIM1 and SIM2 Data connection)
one note to be considered, the data speed was very low, i called my provider and adviced me to switch to another device (portable router adviced), i switched the sim to another device (Note 3) and the net speed was signifacantly better for a while

Silver Mask said:
here is my findings for a few days, i bought a data sim card (only internet) and added to my LG V20 as SIM2
1) yes, you can receive calls while the data is working on the second sim
2,3) in my case, when i receive a call from SIM1 (4G), the data SIM2 still connects between 4G and 3.5G, but in both cases the data is been cutted off and unable to do anything
(this was tested via hotspot the SIM2 and getting a call on SIM1, happened multiple occasions)
4) until now, SIM1 and SIM2 in my device works both on 4G (battery drainage is surprisingly holding up)(tested via switching between SIM1 and SIM2 Data connection)
one note to be considered, the data speed was very low, i called my provider and adviced me to switch to another device (portable router adviced), i switched the sim to another device (Note 3) and the net speed was signifacantly better for a while
Click to expand...
Click to collapse
Your answer is helpful, Silver Mask! Just to confirm, if I'm on a call on SIM2, I would not be able to use the internet on SIM1 at the same time? (e.g. if I wanted to use Google Maps with SIM1 sata while I have a SIM2 call on speaker). If I understand correctly, you're saying I can receive a call on SIM2 while I'm using SIM1 data but once I pick up the call, the data from SIM1 will be temporarily disabled?

rehtse said:
Your answer is helpful, Silver Mask! Just to confirm, if I'm on a call on SIM2, I would not be able to use the internet on SIM1 at the same time? (e.g. if I wanted to use Google Maps with SIM1 sata while I have a SIM2 call on speaker). If I understand correctly, you're saying I can receive a call on SIM2 while I'm using SIM1 data but once I pick up the call, the data from SIM1 will be temporarily disabled?
Click to expand...
Click to collapse
Either disabled as an extream case, 50% of the time it switch to lower band (from 4G/LTE to 3G), even then the data feels slow, but usually any navigation app and social messaging apps doesn't get affected that much, it is just annoying

Voice Break during call

Hi All,
I am from India. I have 2 sim cards from service providers Airtel and Jio. when i make/receive a call through Jio, the other person can hear clearly. But when i make/receive a call through Airtel, the oher person can hear my breaking voice. for example if i say: "Hi, How are you?" they will only hear "H_ __w __r_ y"
while testing with a continuous voice, i found that the breaks in between have exactly same gap time (approx 1 sec).
Also, this only happens only in 3g/4g mode. if i put the airtel network in 2g mode, there is no voice break.
I also got the sim card changed, but it is the same in new sim card as well.
I tried swapping the sim slots, it is the same in both the slots.
I tried putting the sim in other phone, and it works fine.
the question is, if my phone has problem, how does Jio work fine on both the slots? and if there is problem with Airtel network/sim card, how does it work well in other phone or in the same phone with 2 mode?
I am really confused, and tried searching for a solution on the web. I tried switching off Noise cancellation, switching off "OK google" as well.
Some help / guidance would be really appreciated...
Note: Jio is VOLTE based network and Airtel is normal 4G

Hello,
am having the exact same problem. Jio on Volte and Idea on normal 2g (i suppose because there is only one common setting fro both sims i.e 2G/3G/4G Automatic). Jio works fine but idea call breaks on every call i receive and the calls i make. Any solution ?

Its related with h+ you wont have any issues with 2 g or 4g that h+ issue is killing me

Hey I am facing the same issue. Your problem solved by some one .. or still facing the same yet.

OP8P lose sim 2 signal after doing call on sim 1

Hi all
I really have strange issue
I have op8 pro in2023 with Android 11 with two sim cards
1st one for call and it use 3g network and 2nd for internet by using 4g lte...
One I am going to do call by sim one , I immediately lose the data connection permanently just like there is no signal in sim2 at all !
I can recover that by restart or simply by activate and de activate aeroplane mode!
Please any suggestion
I don't have such idiot issue in samsung nor in huawei

Saif96 said:
Hi all
I really have strange issue
I have op8 pro in2023 with Android 11 with two sim cards
1st one for call and it use 3g network and 2nd for internet by using 4g lte...
One I am going to do call by sim one , I immediately lose the data connection permanently just like there is no signal in sim2 at all !
I can recover that by restart or simply by activate and de activate aeroplane mode!
Please any suggestion
I don't have such idiot issue in samsung nor in huawei
Click to expand...
Click to collapse
Check this out.
https://forums.oneplus.com/threads/dual-sim-mobile-data-lost-while-calling.500462/

Limeybastard said:
Check this out.
https://forums.oneplus.com/threads/dual-sim-mobile-data-lost-while-calling.500462/
Click to expand...
Click to collapse
I know that we cant use both sim at sqme time
But the 2nd sim should resume his work automatically after the end of call from 1st sim right? Mine did not work at all till i restart or just activite and de activte the air plane. Mode.

Saif96 said:
I know that we cant use both sim at sqme time
But the 2nd sim should resume his work automatically after the end of call from 1st sim right? Mine did not work at all till i restart or just activite and de activte the air plane. Mode.
Click to expand...
Click to collapse
I'll do some more research and get back to you

Saif96 said:
I know that we cant use both sim at sqme time
But the 2nd sim should resume his work automatically after the end of call from 1st sim right? Mine did not work at all till i restart or just activite and de activte the air plane. Mode.
Click to expand...
Click to collapse
I've got two sims also. Tell me what setup you have , I know you mentioned sim one is for calls and 3G? And sim 2 is for data only? I don't see an option on here. I have a global setting for 3g 4g 5g etc and then I also have a default option to state voice or data for each line as a preference.

Limeybastard said:
I've got two sims also. Tell me what setup you have , I know you mentioned sim one is for calls and 3G? And sim 2 is for data only? I don't see an option on here. I have a global setting for 3g 4g 5g etc and then I also have a default option to state voice or data for each line as a preference.
Click to expand...
Click to collapse
I used every method to solve this issue through 4 days and I really hate One plus for that annoying BUT
some one told me I should activate the VOLTE through setting , but unfortunately I didnt find this option too !
I follow this tutorial to activate VOLTE :
https://www.youtube.com/watch?v=v7zUZhxNmPw
And FINALLY its work flawlessly :laugh:

Saif96 said:
I used every method to solve this issue through 4 days and I really hate One plus for that annoying BUT
some one told me I should activate the VOLTE through setting , but unfortunately I didnt find this option too !
I follow this tutorial to activate VOLTE :
And FINALLY its work flawlessly :laugh:
Click to expand...
Click to collapse
Glad you got it resolved.