ZTE nubia z9 max network/sim issue:please advise if custom rom may help? - Android Q&A, Help & Troubleshooting

hi folks
i picked up this phone the other day. I have a 4g sim required and verified by network. The handset supports the network bandings available in my country.If i put a sim card into sim slot 1 i get a message saying : "this is not a 4g telecom sim" and sim allows me to enter my sim security pin but nothing else. Sim card works in sim slot 2 but as 2g only. I should be getting 3g/4g and no idea why.... any ideas please?? was wondering if cyanogenmod or an alternative rom would fix this issue? thank you in advance.

Hello,
which sim you are use ? and which rom you currently use ?

Thanks for trying ti help.I'm using Meteor Mobile network 4g sim in Ireland and its stock software android 5.0 model nx512j

Is your device supports LTE. But please verify by network is band of Network is supports your device or not. May be your device is not support 4G LTE band with your sim.

Ye mate. Handset supports 4g and 3g 2100mhz which is compatible in my country and sim card has 4g in another handset I tested.

Lordspectre said:
Ye mate. Handset supports 4g and 3g 2100mhz which is compatible in my country and sim card has 4g in another handset I tested.
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Ok friend. Please send me a error pics so i can more help you

​When we put it into sim1 we get (image attached) but in sim2 we get full gsm coverage + 2g internet.Tested sim in other phone I have an get 4g + 3g on it so sim and network is fine...Even the company I bought the phone off of says it should have no problem working in my country. My sim is a 4g sim verified by my mobile provider.Thank you.

I wonder if installing cyanogenmod would fix the issue?

As per error msg your sim is not 4G try to renew your sim if still YOU get same error then hard reset your cell if still its not works then go for cyanogen mod.

Lordspectre said:
I wonder if installing cyanogenmod would fix the issue?
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May be your issue will be solved. Because problem is in your sim.

Related

3g sim card

hi guys does anybody know if it is possible to get my o2 xdmini s to except a 3 sim card, it excepts all other sim cards (virgin - vodafone) etc
thanks, jim
Think the simple answer is no.
My understanding is that three use a different frequency and specification - ie wideband CDMA for their mobile coverage, which is not compatible with sims from other carriers using gsm and/or 3gsm services.
If you correctly use the word "accept" instead of "except" in your future posts it will be much easier for people to help you.
one thing that i know is that it will work but no 3g
ultraprimeomega said:
one thing that i know is that it will work but no 3g
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how? i sim unlocked my G4 mini s. It works with o2, vodafone and should be fine with orange.
But I did check to use my 3 simcard. However, it doesn't accept the card at all. (not only can't use 3G, but no phone feature is available to use)
wildcolor said:
how? i sim unlocked my G4 mini s. It works with o2, vodafone and should be fine with orange.
But I did check to use my 3 simcard. However, it doesn't accept the card at all. (not only can't use 3G, but no phone feature is available to use)
Q: How do I know my G4 has ever been CID unlocked?
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Click to collapse
Try SIM Unlocking again. A 3G sim means that it's capable of 3G speeds in a 3G device. I'm currently using a 3G sim in a non 3G device and all is good.
If you didn't CID unlock your device yourself....more than likely it's still CID locked. G4's were only able to be CID unlocked by imei.com or something like that till now. There's a new CID unlocking tool floating around that works on G4's. Give it a try.
dwny said:
Try SIM Unlocking again. A 3G sim means that it's capable of 3G speeds in a 3G device. I'm currently using a 3G sim in a non 3G device and all is good.
If you didn't CID unlock your device yourself....more than likely it's still CID locked. G4's were only able to be CID unlocked by imei.com or something like that till now. There's a new CID unlocking tool floating around that works on G4's. Give it a try.
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Thanks for the reply. But i thought the 3 networks and other networks are working completely different.
I have a sim-free phone. I can use O2, Orange, Vodafone, T-mobile, etc. But when I put my 3 sim-card in. It doesn't allow me to use it. I don't care the 3G speeds. It will be fine to me if I can use the 3 sim card to make a phone call.
The same situation for my Wizzard (O2 Mini S).
wildcolor said:
Thanks for the reply. But i thought the 3 networks and other networks are working completely different.
I have a sim-free phone. I can use O2, Orange, Vodafone, T-mobile, etc. But when I put my 3 sim-card in. It doesn't allow me to use it. I don't care the 3G speeds. It will be fine to me if I can use the 3 sim card to make a phone call.
The same situation for my Wizzard (O2 Mini S).
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i sometimes use a 3g sim and its the same as my regular sim but as long as the sim is for a GSM network it will work but of curse it has to be on a sim unlocked phone
ultraprimeomega said:
i sometimes use a 3g sim and its the same as my regular sim but as long as the sim is for a GSM network it will work but of curse it has to be on a sim unlocked phone
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My Wizzard is Sim Unlocked, CID locked. I can use my regular sim cards, like O2, Vodafone, etc.
But why can't I use my 3g sim card to make any call? Any idea about this will be appreciated.
i believe the wizard phones arent made for 3g. so thats probably why your
3g sim wont work.
i emailed imei-check.co.uk and this was the reply
"This is TECHNICAL IMPOSSIBLE. Your device is a 2G device and can handle all GSM SIM cards.
"3" (3G network) does not have GSM SIM cards. They use special U-SIM cards (note the U in front) which are NOT GSM compatible.
In short: To use a "3" sim card you need a 3G/UMTS device which can handle U-SIM cards. Your device is NOT a 3G/UMTS device and thats why it will NEVER be able to use a U-SIM."
that sucks ive got 12 months left of my contract
jimblob said:
i emailed imei-check.co.uk and this was the reply
"This is TECHNICAL IMPOSSIBLE. Your device is a 2G device and can handle all GSM SIM cards.
"3" (3G network) does not have GSM SIM cards. They use special U-SIM cards (note the U in front) which are NOT GSM compatible.
In short: To use a "3" sim card you need a 3G/UMTS device which can handle U-SIM cards. Your device is NOT a 3G/UMTS device and thats why it will NEVER be able to use a U-SIM."
that sucks ive got 12 months left of my contract
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ouch that really does suck...
jimblob said:
i emailed imei-check.co.uk and this was the reply
"This is TECHNICAL IMPOSSIBLE. Your device is a 2G device and can handle all GSM SIM cards.
"3" (3G network) does not have GSM SIM cards. They use special U-SIM cards (note the U in front) which are NOT GSM compatible.
In short: To use a "3" sim card you need a 3G/UMTS device which can handle U-SIM cards. Your device is NOT a 3G/UMTS device and thats why it will NEVER be able to use a U-SIM."
that sucks ive got 12 months left of my contract
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Exactly, I have 17 and a half months left for my 3 contract.
But the guy "ultraprimeomega" above mentioned, he could use the 3 simcard as well as other simcards. It's very strange to me

Full unlock n900p

Hi everybody,
I bought sprint note 3 wich was locked, and i used ssu apk to unlock it, it was 4.4.4 when i unlocked it, was using with 3g sim cards and i didnt have any issue, now my operator startet with lte/4g networks, and i went to change my sim card and got new sim card with lte/4g support, and now my sim card is not working, when i remove sim and put it again and power on the phone, i have signal for about 1 minute, and i can make calls, then the signals stops, and i changed 2 sim cards, even with other opertor didnt work, what im trying to say is that with normal sim cards my phone works perfect, only with lte/4g sims i cant make it work.. one guy there sad to me maybe your phone is not full unlocked, if this is case how can i fully unlock, thanks in advance and sorry for my english, its not my native language. Again thanks. Any help will be very welcomed.
You need a carrier that has the LTE 1900 GSM band. In the US it's ATT.

Standby SIM | 2G Only?

The preferred SIM is able to pick anything from 2G to 4G, but that causes the standby SIM to have only 2G as a "Preferred Network Type" option.
Is this normal behavior? I made sure the documentation didn't limit the radios on the standby SIM before getting this phone because my one of my carrier does not support 2G, only GSM and LTE.
The SIM works great if I select it as the preferred SIM since it then goes on 3G, but goes back to "Emergency Only" when not preferred.
Is this a hardware limitation on the chipset? I know some other phones are like that (ZenFone 2 for example) but it clearly specifies that limitation on the box. I was expecting both sim cards to be on 3G.
That's dual sim dual stand by on 4g you mean? Forget about it is only marketing on this phone and much other. I have 2 sim from same provider and both 4g or 3g but only one work at same time another has no service same on my LeTv x600. ?
Sent from my x600 using Tapatalk 2
It seems there is much confusion about the DUAL SIM. Maybe I can help... If you insert 2 SIM Cards the following happens, you must choose which card SIM1 or SIM2 will be used for Data Services. Both slots support LTE but only one can be active at the time. Otherwise, both SIM Cards are indeed active (means they support calls and SMS) however the SIM that is not used for Data Service will be "only" shown as GSM (G) while the other will show LTE (4G) in the status bar. Since most providers use GSM for phone calls anyway (regardless of the data connection) your SIM should work both as active and second. Having said all the above, yes, the option for the standby SIM is only 2G - which is really GSM for that matter (or G in the status bar).
GGranello I am not agree with you. In my case provider is not over 2G service only 3G and 4G and have only 2100 band so one of two SIM is with NO SERVICE (of course I can choose The active SIM) but both doesn't work in same time. And for video calls 3G is needed am I wrong? I want to say that on GSM you can't make video calls.
Sent from my x600 using Tapatalk 2
mr.claude said:
GGranello I am not agree with you. In my case provider is not over 2G service only 3G and 4G and have only 2100 band so one of two SIM is with NO SERVICE (of course I can choose The active SIM) but both doesn't work in same time. And for video calls 3G is needed am I wrong? I want to say that on GSM you can't make video calls.
Sent from my x600 using Tapatalk 2
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Mr. Claude, my description was meant to explain the way the Phone seem to handle the dual SIM. If Your provider supports ONLY calls over 3G and 4G than you will be out of luck using that SIM as secondary. My (I agree limited) understanding is that GSM providers must support GSM calling in any case but that may be no longer the case. I have used the Phone with 2 SIM cards for quite some time now, one with LTE for Data and the other for Calls and SMS and I had no issues. I have not tried any Video Calls as the prices are quite high here, it is my understanding that you need a 3G (or better) connection for those. And even with Android 6, the P9000 does not seem to support VoLTE calling either.
Yes I am agree with you that this phone does not support VoLTE but neither two 4G or 3G SIM from same Network Provider working together or "DUAL STANDBY"
I have owned a number of dual SIM phones and all of them supported 2G/3G/(4G) on one SIM but only 2G on the other. Before the latest MTK SOCs, it was generally the case that SIM slot 1 would support 2G and 3G (and maybe 4G) and slot 2 only 2G. Now it is possible to swap the SIM functions via the settings menu, but one of the SIMs will still be restricted to 2G.
If your SIMs are both from a provider which doesn't support 2G, like Hutchison Three in the UK, then I'm afraid you will only be able to use one of them at a time. There may be dual SIM phones that support 2G/3G/4G on both SIMs at the same time, but I haven't come across one.
Yep me don't even knowing or heard about one phone that's working with both SIM cards on 4G in same time and actually have 3 phones in my hands all 4G and dual SIM and not work either with 2 SIM on 4G in same network.
Sent from my x600 using Tapatalk 2

Lg v10 h962 dual sim not standby

Hello my everybody, Happy July 4th to you all.
Please does any V10 H962 owner experience this same issue?
Please do you have an idea of what might be wrong with my phone. My dual sim is no long standby. Sim 1 usually get 4G LTE and Sim 2 Gets 3G and 2G voice. Now I can only use either Sim 1 or Sim 2 at once. When One sim on 4G LTE, the second sim will Not get signal/coverage until I switch back to other one. Pls what can I do? I have migrated from MM to Lollipop, still the same issue.
Please any help will appreciated.
In which country are you living?
Most of the mobile carriers are switching off 2g networks. So make sure they are not doing so in your country.
The Lg V10 dual sim puts one sim on 4g and the other on 2g, since the 2g Network is shut off the phone has not signal on the second sim card.
I think it's time to get a new phone that supports 4g on both sims or 4g/3g

Need help with custom ROM on Galaxy S9+ Dual sim

Hello all,
Just bought a Samsung Galaxy S9+ dual sim (SM-G965F/DS) (G965FXXS7GSJ3) international model. Since I inserted my T-Mobile sim card I can only get the 4G signal and no LTE (also tried Verizon sim card and the same result). Speed test on 4G with a few different location (Northwest) and the result from 1.00mbps - 22 mbps max. I online chat with Samsung support and found out that USA don't support dual-sim and that's the reason I don't get the LTE service.
Is there a custom ROM or a way to flash my phone so that I can use the LTE service on my phone?
Thanks
supasieu said:
Hello all,
Just bought a Samsung Galaxy S9+ dual sim (SM-G965F/DS) (G965FXXS7GSJ3) international model. Since I inserted my T-Mobile sim card I can only get the 4G signal and no LTE (also tried Verizon sim card and the same result). Speed test on 4G with a few different location (Northwest) and the result from 1.00mbps - 22 mbps max. I online chat with Samsung support and found out that USA don't support dual-sim and that's the reason I don't get the LTE service.
Is there a custom ROM or a way to flash my phone so that I can use the LTE service on my phone?
Thanks
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Sorry but whoever told you they don't support DS sounds like BS to me, the carrier only see the phone signal, they don't know if it's coming from a single sim, dual sim or multi sim gateway device.
If you go into.....
settings --> connections --> mobile networks
and make sure both sims are set for LTE
1- 4G/LTE are the same. LTE/4G icon changes depending on ROM and carrier.
2- Samsung agent has no idea. It's a person on a generic building in India contracted by Samsung most probably.
If you own a dual sim s9+ you can get both modems/sims to work on 4G/LTE even at the same time.
If you see 4G you are working on LTE. Then what speed you get it depends on several factors, not just the phone or signal
Sent from S.G. S9 Plus Duos using Tapatalk

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