hi!
i'm facing a weird problem with dual sim network. sim 1 or sim 2 whichever is assigned with 2g/3g/4g option gets cellular network only and the remaining one shows 'emergency calls only'. assuming that this is an software issue, i've changed the rom using HiSuite; but the problem yet prevails! the phone was okay for last around a year and this issue just happened couple of days back...
is there any solution/suggestion to get rid of the problem? thanks in advance!
dbnripan said:
hi!
i'm facing a weird problem with dual sim network. sim 1 or sim 2 whichever is assigned with 2g/3g/4g option gets cellular network only and the remaining one shows 'emergency calls only'. assuming that this is an software issue, i've changed the rom using HiSuite; but the problem yet prevails! the phone was okay for last around a year and this issue just happened couple of days back...
is there any solution/suggestion to get rid of the problem? thanks in advance!
Click to expand...
Click to collapse
factory reset or reinstall rom.
While it might be ROM/firmware issue, another possibility is the cellular frequency bands. Whichever SIM is assigned as data sim (2/3/4g), the other SIM can only be (2g). It might be that the telco has discontinued 2g frequency band.
I have similar issue on Honor 8 which I think has the same limitation (only 1 data SIM). If I assign SIM A as data SIM, SIM B would lost signal; but SIM A has signal if SIM B is set as data SIM. This is regardless of the SIM card slot. In my case, probably SIM A (its telco) supports 2g band, but not SIM B.
Related
Hello all,
I live in Bosnia and Herzegovina. We have 3 mobile operators and all 3 are working on same frequencies. On one sim card(I am using 2 cards from different providers) I am getting no service message in every scenario: in both slots, when trying only that card in both slots, on 2g, 3g ect. I've tried second sim from my colleague and same result for that provider. I requested new sim card, same problem. Phone is flashed two days ago on 70..12.0 but same problem still exist. sometimes card gets recognized for couple of minutes and then goes in no service
Does anyone have some solution for this?
Thx in advance
CH1LE said:
Hello all,
I live in Bosnia and Herzegovina. We have 3 mobile operators and all 3 are working on same frequencies. On one sim card(I am using 2 cards from different providers) I am getting no service message in every scenario: in both slots, when trying only that card in both slots, on 2g, 3g ect. I've tried second sim from my colleague and same result for that provider. I requested new sim card, same problem. Phone is flashed two days ago on 70..12.0 but same problem still exist. sometimes card gets recognized for couple of minutes and then goes in no service
Does anyone have some solution for this?
Thx in advance
Click to expand...
Click to collapse
What version your phone is?
Check first these settings:
http://forum.xda-developers.com/showpost.php?p=63727200&postcount=9
and
http://forum.xda-developers.com/showpost.php?p=64024163&postcount=10
maxx_hr said:
What version your phone is?
Check first these settings:
http://forum.xda-developers.com/showpost.php?p=63727200&postcount=9
and
http://forum.xda-developers.com/showpost.php?p=64024163&postcount=10
Click to expand...
Click to collapse
Everything is allready checked like in your pictures. Model: 2015501
I have an unlocked Lenovo Golden Warrior Note 8/A936 2 gb ram dual sim phone. Its also rooted. In my country there are 2 network providers. I have a SIM for both. The phone recognizes both of the sim cards and even labels them by their network name but only picks up the service for one of the network providers. Ive made sure both sims are good. They both work fine in my Samsung Galaxy Note 4. Trying to figure out what could be wrong with the Lenovo as it won't pick up any service for that SIM card.
Ive tried:
both sim slots and still only one recognized.
removing the working one and the other still wont find service
Factory resetting
Manually/Automatically finding the network. Manual search doesnt find the ine i want to find
Switching from 2g,3g,4g preferred types
Any idea what could be wrong?
wrong lte/4g channel
Maybe your provider uses a for the handy not usable channel and the sim is a lte/4g only! So the device doesn'T recognize the sim, Iguess. I'm sorry, bad luck
Hi
I have issue while having both sims activated.
Mostly the main Sim card slot sim loses signals and sometime it's not connecting mobile data. I have to restart my phone in such situations.
If only one sim used at a time, then everything is fine.
Does anyone know the problem or the situation.
Hello everyone.
I have one or two little questions about the phone. I have this phone since July and I would like asking about few f*cking issues. I have the H930DS with the Boombox ROM and have faced the same issues with the lastest 21* Official ROM.
SIM A France with Roaming ok - SIM B Switzerland. I live in Switzerland.
------------------------------- DATA SIM A - Calling with SIM B -----------------------------
-> no internet while calling
-> sms cannot be send with SIM B
-> poor signal with sim B, very oft no signal
------------------------------- DATA SIM B - Calling with SIM B -----------------------------
-> internet ok while calling
-> sms cannot be send with SIM A
-> Very good signal in SIM B, poor signal with sim A
My Problems with signal quality is also when I make no call. I don't understand why is so... Make no sens. I have oft the problem with no signal in SIM B and when I choose SIM B for Data, signal is automatically better....
Faced you this problems ?
Thanks you.
Anyone with other/previous Dual SIM devices can tell a same story ?
The most seldom Android devices have dsda (dual sim dual active), afaik the H930DS is dsds like many devices (dual sim dual standby)
https://gadgetstouse.com/news/dual-sim-dual-standby-and-dual-sim-dual-active/8985
That at least partially might be able to explain it,
also living at the border and roaming with 2 different country SIMs is supposed to be quite bothersome I read back some time.
No idea if it's supposed to have improved
Thanks, I had no idea about this active or standby mode. This is annoying... But that's explained not the problem with signal strength... I have no idea how is it possible.
cle_m_ent said:
Thanks, I had no idea about this active or standby mode. This is annoying... But that's explained not the problem with signal strength... I have no idea how is it possible.
Click to expand...
Click to collapse
what connection tech / speed are you using for each different SIM ?
if I remember correctly there was also an issue with only one SIM being capable of using 3G or LTE at a time and the other being limited to 2G (or similar)
so that could be one explanation of it.
Haven't looked into that kind of issue yet since I don't have a dual SIM device
I have purchased an Umidigi Power 3, I am having an interesting scenario and am interested in a technical answer as I can't seem to gleen anything from the research.
Using my Verizon sim in the phone is effortless. I have no problems making/receiving calls and/or data. As long as it is the solo sim, it will work in any of the two sim slots.
When I add a mint mobile sim (again at any slot), so long as the Verizon sim is the Mobile Data sim, Verizon works.
If I switch mobile data over to the MINT sim, the Verizon service doesn't even register to a network. It shows a 1x[FullBars]R in the status and any calls made on the Verizon service tells me that calls can not be completed as dialed. It's asked me to dial *611 which, if I do, just replays the same message. It does clearly state "Thanks for calling Verizon".
When I set the mobile network to Global, 1x, 3G, or LTE as well as the Roaming mode to "Home" nothing changes, only thing that does cause a change is if I set the roaming mode to "Home" and network type to "LTE". Then the bars never seem to register.
I've swapped the SIM to be safe, and this configuration works in my Oneplus 6t no problem.
Umidigi Power 3 seems to support all the bands, what could I be missing?
Thanks.
mastridonicus said:
I have purchased an Umidigi Power 3, I am having an interesting scenario and am interested in a technical answer as I can't seem to gleen anything from the research.
Using my Verizon sim in the phone is effortless. I have no problems making/receiving calls and/or data. As long as it is the solo sim, it will work in any of the two sim slots.
When I add a mint mobile sim (again at any slot), so long as the Verizon sim is the Mobile Data sim, Verizon works.
If I switch mobile data over to the MINT sim, the Verizon service doesn't even register to a network. It shows a 1x[FullBars]R in the status and any calls made on the Verizon service tells me that calls can not be completed as dialed. It's asked me to dial *611 which, if I do, just replays the same message. It does clearly state "Thanks for calling Verizon".
When I set the mobile network to Global, 1x, 3G, or LTE as well as the Roaming mode to "Home" nothing changes, only thing that does cause a change is if I set the roaming mode to "Home" and network type to "LTE". Then the bars never seem to register.
I've swapped the SIM to be safe, and this configuration works in my Oneplus 6t no problem.
Umidigi Power 3 seems to support all the bands, what could I be missing?
Thanks.
Click to expand...
Click to collapse
This is interesting. I think it's the apn not being set correctly. You might want to check if mint apn is set.
Also if you want to call mint, you'll need to switch calls to mint sim as well.
Sent from my SM-G985F using Tapatalk
Will look into it. Why do you think it could be the mint apn?
Did you ever resolve this? I had the same problem but with a FIDO data sim and a Shaw voice sim. All APN settings were correct but with the FIDO sim inserted I was unable to use the Shaw sim. Umidigi A7S