LTE 4G not working on both sim - OnePlus 6 Questions & Answers

I'm on 5.1.9 but despite i activated the option only the Sim used for data traffic can actually connect to 4G. The other Sim seems forced and stuck in 3G at 900MHz (band 8)

There's no use for LTE on the phone sim unless you are lucky to live in China, India or Finland AND use a sim card of the view carriers supporting VoLTE in the OP6.

No sense reply. OP declares dual 4G on both Sim. My phone supports 4g only one sim and the worse the secondary sim is locked on 3G band 8

Are you using any custom rom? i faced similar issue on havoc rom

bhanuprasad1981 said:
Are you using any custom rom? i faced similar issue on havoc rom
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No. Pure stock 5.1.9

I had the same problem. But i went back to 5.1.8 and problem solved now dual 4g active.

Crazy but settings the phone on the English instead of my local language the problem seems gone.

I'm in America and I'm having the same problems after the 5.1.9 update, one SIM is always in regular GSM mode even with the dual-4G mode enabled.
Ramihyn said:
There's no use for LTE on the phone sim unless you are lucky to live in China, India or Finland AND use a sim card of the view carriers supporting VoLTE in the OP6.
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That is completely false. Even T-Mobile in the US supports VoLTE. Even if it didn't though, it still allows for faster SIM switching since it was already on LTE.

Curious how you guys are checking it. Mine both say VoLTE and it seems to be fine for me.

I reset the network settings and it work for a few hours. The dual sim 4g instructions are broken .

Related

Verizon M8 only connecting to 2G/GSM networks. No 3G/4G.

Hi All,
The issue with my Verizon M8 [the rare LRA (LTE for Rural America) subvariant] is that no matter what firmware version/RUU I use, I only get GSM connectivity on it. No WCDMA or LTE. I have checked the WCDMA bands in my country and that is not an issue. When I select WCDMA only option, I cannot get any signal. I have flashed the all the LRA (*.**.512.*) RUUs as well as all the Verizon (*.**.605.*) RUUs but no luck at all. If this issue might be related to PRL settings then please let me know if any of you have any idea. I have also checked the relevant WCDMA/LTE bands via CDMA tool and they are also enabled.
My M8 is currently S-off and has Super CID. I am using it outside the US on GSM network.
This has got me very frustrating and I need to find out if this is a software issue or a hardware issue. One more thing is that another guy here has exactly the same variant as mine. He bricked his radio by flashing the GSM firmware. I provided him my phone's relevant partition dumps and after flashing those onto his phone, his phone's radio became operational but now he has the same issue as mine. So I think that this issue might not be hardware related.
Any help on this will be greatly appreciated!!
Same problem
Anyone can provide any help on this??
any1 please help??
junaidawan86 said:
any1 please help??
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do you know the actual bands/frequency the gsm network uses where you are? the prl is going to be pulled from your sim card. have you also tried a diff sim card?
izzaeroth said:
do you know the actual bands/frequency the gsm network uses where you are? the prl is going to be pulled from your sim card. have you also tried a diff sim card?
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Hello. Yes, I know the bands used by 2G, 3G and 4G in my country. And yes I have switched sim cards even from different networks. The PRL version shows as 00000 when i look at it from the settings. I have even tried to update the PRL from a prl file provided by a xda user in some other thread but still it shows as 00000. I have seen some threads and ppl had this problem with One S. Though some of them were able to correct it by flashing some stock and custom radios.
junaidawan86 said:
Hello. Yes, I know the bands used by 2G, 3G and 4G in my country. And yes I have switched sim cards even from different networks. The PRL version shows as 00000 when i look at it from the settings. I have even tried to update the PRL from a prl file provided by a xda user in some other thread but still it shows as 00000. I have seen some threads and ppl had this problem with One S. Though some of them were able to correct it by flashing some stock and custom radios.
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odd. i wonder if that lra model is sim locked like the sprint variant. is it also acknowledging you have a sim card inserted when you check in about phone? as in, does it display the sim #
izzaeroth said:
odd. i wonder if that lra model is sim locked like the sprint variant. is it also acknowledging you have a sim card inserted when you check in about phone? as in, does it display the sim #
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Well, I thought too that it might be sim locked but then why it is working with 2G networks. There should be no signal at all then. Also these LRA variants are being sold by many online retailers including Amazon as sim unlocked phones. And yes it acknowledges when I insert or change a sim. Says "Preparing sim card" and then I get a signal (2G only). When I choose 3G only in network settings, the signal is gone immediately and I have to switch back to auto or 2G only to get the signal back.
@redpoint73
Any help on this???
junaidawan86 said:
Hello. Yes, I know the bands used by 2G, 3G and 4G in my country.
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So then list the specific band numbers for 2G, 3G, and LTE for your carrier. That is really what the previous response was asking.
redpoint73 said:
So then list the specific band numbers for 2G, 3G, and LTE for your carrier. That is really what the previous response was asking.
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900/1800MHz for 2G
2100MHz for 3G
850/1800MHz for 4G/LTE
junaidawan86 said:
900/1800MHz for 2G
2100MHz for 3G
850/1800MHz for 4G/LTE
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This is strange, as the 3G band 2100 Mhz is really common (many countries use it for 3G, and most any recent US phone intended for foreign travel will support it), and should be supported by the device out-of-the-box. This tells me the problem is likely not RUU/firmware related.
You sure the APN is properly typed? And does your carrier use any different APN for 3G, LTE, etc.?
redpoint73 said:
This is strange, as the 3G band 2100 Mhz is really common (many countries use it for 3G, and most any recent US phone intended for foreign travel will support it), and should be supported by the device out-of-the-box. This tells me the problem is likely not RUU/firmware related.
You sure the APN is properly typed? And does your carrier use any different APN for 3G, LTE, etc.?
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No it uses the same APN for all types and its configured correctly. I also thought the issue might rather be related to some NV values or PRL. If I set it to 3G only, it "Sees" the carrier as I can see a signal bar in network signal guru app, but the mobile is not able to connect to it.
so i am thinking that since this is a lra variant, a lot of bands may be disabled. have you seen anywhere else that someone got a lra variant to work outside the us? i know you said people were selling it as being unlocked, but maybe its not
izzaeroth said:
so i am thinking that since this is a lra variant, a lot of bands may be disabled. have you seen anywhere else that someone got a lra variant to work outside the us? i know you said people were selling it as being unlocked, but maybe its not
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Well the LRA variant is practically the Verizon one with everything same as the Verizon variant. There a lot of links on both Amazon and eBay in which its mentioned that its LRA variant and is factory unlocked and can be used anywhere in the world. And yes I came across various threads on XDA in which people had this same variant, working fine (3G atleast) but they wanted to upgrade to Android 6 MM as there is no official update available for this variant after Android 5 Lollipop. As for the relevant bands (2100MHz for 3G used in my country), they were already unlocked (checked via CDMA Tool and QXDM).
junaidawan86 said:
Well the LRA variant is practically the Verizon one with everything same as the Verizon variant. There a lot of links on both Amazon and eBay in which its mentioned that its LRA variant and is factory unlocked and can be used anywhere in the world. And yes I came across various threads on XDA in which people had this same variant, working fine (3G atleast) but they wanted to upgrade to Android 6 MM as there is no official update available for this variant after Android 5 Lollipop. As for the relevant bands (2100MHz for 3G used in my country), they were already unlocked (checked via CDMA Tool and QXDM).
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hmm this is quite the problem. if you can confirm you are using the same rom as the others, i would then think the issue is the radio being defective
izzaeroth said:
hmm this is quite the problem. if you can confirm you are using the same rom as the others, i would then think the issue is the radio being defective
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I am using the stock LRA RUU (android 5.0.2). I have also tried the VZW RUUs from 4.4 to 6.0 but the same issue exists on them all. Even I have used GPE and Sense based custom roms but the same issue. I think that the issue might be related to some NV values or this phone might be network locked. Is there a way to check if the phone is network/sim locked? As I am getting the (2G) signals for all the networks in my country.
junaidawan86 said:
I am using the stock LRA RUU (android 5.0.2). I have also tried the VZW RUUs from 4.4 to 6.0 but the same issue exists on them all. Even I have used GPE and Sense based custom roms but the same issue. I think that the issue might be related to some NV values or this phone might be network locked. Is there a way to check if the phone is network/sim locked? As I am getting the (2G) signals for all the networks in my country.
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it being sim/network locked makes sense, because the phone was made for people who live in the middle of nowhere. there would also be a high probability that none of those people will ever travel outside the country. i do not know anything about the nv values and tweaking them, but i have looked at that thread a few times. lastly, if you have only picked up 2g regardless of sim or apn used, it could be defective radios
junaidawan86 said:
Well, I thought too that it might be sim locked but then why it is working with 2G networks. There should be no signal at all then. Also these LRA variants are being sold by many online retailers including Amazon as sim unlocked phones. And yes it acknowledges when I insert or change a sim. Says "Preparing sim card" and then I get a signal (2G only). When I choose 3G only in network settings, the signal is gone immediately and I have to switch back to auto or 2G only to get the signal back.
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did you get the solution for the problem since i need help as i am facing the same problem
quican said:
did you get the solution for the problem since i need help as i am facing the same problem
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yes I got my issue fixed. Can u confirm which device you have? software version *.*.512* or *.*.605.*?

Vodafone India 4g Issue

I have honor 6X indian variant.My 4g connection works fine when I am using Reliance Jio carrier sim card.But when i switch to my vodafone simcard i am unable get 4g data speeds.I am able to view vodafone 4g network and connect to it.But when i turn on my mobile data i am only getting 2g or 3g speed.I have talked with customer care , rechecked my vodafone internet settings they all are fine.Vodafone is set as primary sim and 4g is enabled.Even my subscription plan is 4G plan i have checked.Can anyone help me to resolve this.
Update : 11/09/17
Yesterday i got update BLN-L22C675B340 , after installing there was no immediate change. but today since morning i am able to connect to 4g network all right. Don't know if it was due to carrier issue or phone software issue but its has gone away now for good.
Maybe you live in an area where Vodafone have no band of LTE that's compatible with your device
im using idea 4g. i do get 3g speed sometime when there is no 4g signal but at my home i alway have 4g i got good signal at home.
PalakMi said:
Maybe you live in an area where Vodafone have no band of LTE that's compatible with your device
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Vodafone keeps sending me sms like please insert your card in sim 1 slot to enjoy 4g.But I hv already kept it as my primary 4g sim.(see the screenshot, its in hindi lang)
chans.best said:
Vodafone keeps sending me sms like please insert your card in sim 1 slot to enjoy 4g.But I hv already kept it as my primary 4g sim.(see the screenshot, its in hindi lang)
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So this makes my conclusion a logical one, Vodafone doesn't provide a 4G band that's supported by your device in the area where you live!
PalakMi said:
So this makes my conclusion a logical one, Vodafone doesn't provide a 4G band that's supported by your device in the area where you live!
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its LTE 3 1800 for Vodafone india in mumbai.And honor 6x supports it.
chans.best said:
its LTE 3 1800 for Vodafone india in mumbai.And honor 6x supports it.
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Really?! That's weird.
I don't know what makes the 4G not working on your device.
chans.best said:
I have honor 6X indian variant.My 4g connection works fine when I am using Reliance Jio carrier sim card.But when i switch to my vodafone simcard i am unable get 4g data speeds.I am able to view vodafone 4g network and connect to it.But when i turn on my mobile data i am only getting 2g or 3g speed.I have talked with customer care , rechecked my vodafone internet settings they all are fine.Vodafone is set as primary sim and 4g is enabled.Even my subscription plan is 4G plan i have checked.Can anyone help me to resolve this.
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Hide the IMEI info OP.
I use Vodafone 4g in my Honor 6x 3gb variant and its working fine...
From the screenshot you provided, we're you used to set your network manually to Vodafone 3g rather than 4g network?
vsriram92 said:
I use Vodafone 4g in my Honor 6x 3gb variant and its working fine...
From the screenshot you provided, we're you used to set your network manually to Vodafone 3g rather than 4g network?
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I have always used automatic selection.Even if i manually select vodafone 4g it will register on network but it will still connect to 3g network.
Issue gone away like magic this morning , Don't know how
Updating OP
chans.best said:
Issue gone away like magic this morning , Don't know how
Updating OP
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That's good to hear, update the title also
chans.best said:
I have always used automatic selection.Even if i manually select vodafone 4g it will register on network but it will still connect to 3g network.
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Does it have 4g network in your area... how about checking the same in other model.
Mine ia china variant but still all Indian sim works fine except jio volte calling but 4G is fine.

Dual SIM 4G+3G or only 4G+2G ?

I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
andrewsc said:
I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
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For sure....! I also think 4G+4G can work...
If the Australian version is the same as the European version it will support 2G, 3G and 4G on SIM 1 whilst SIM 2 will support 2G and 3G.
Sent from my MHA-L29 using Tapatalk
3G would be great on SIM 2. The problem I'm trying to solve is that our Australian telco ( Optus ) has severely degraded its own mobile network, to the point where we can't receive voice calls anywhere in our suburb. LTE used to work well, not any more. On the other hand, they improved somewhat on their 3G network. My wife is still in contract with cheap plan. So I could arrange a dual-SIM where SIM 1 is on 4G with another telco, while SIM 2 stays at 3G with the old telco. Things may improve for their network, or the company is going down, we shall see.
4G/3G is how it does it.
Both will support 4G but you'll need to put the switcher setting on your homescreen so you can switch quickly - you can't have both on 4G but both will support it. The other will be able to use 3G.

Using Dual Sim phone in Australia

Recently, I've started to have random issues with phone calls not coming through to my phone. I noticed that my primary SIM with LTE has noticeably worse service than my secondary SIM. Both SIMs are on the same network, but the issue appears to be LTE-related. Whichever SIM I use, once connected to LTE the service drops at least 2 bars lower.
This is a Singapore stock Dual SIM phone with Malaysian firmware (for more reguar updates). Do I need to update the modem firmware to be more compliant with Australia's networks? Or is this something inherent to the phone?
Thanks for any help!
cokebotle said:
Recently, I've started to have random issues with phone calls not coming through to my phone. I noticed that my primary SIM with LTE has noticeably worse service than my secondary SIM. Both SIMs are on the same network, but the issue appears to be LTE-related. Whichever SIM I use, once connected to LTE the service drops at least 2 bars lower.
This is a Singapore stock Dual SIM phone with Malaysian firmware (for more reguar updates). Do I need to update the modem firmware to be more compliant with Australia's networks? Or is this something inherent to the phone?
Thanks for any help!
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I never used the Malaysian firmware but I can tell you that I've had the Russian one before and my lte signal was pretty bad in Canada. I've reflashed with the Saudi Arabian fw and I'm seeing significant improvements.
nahsha said:
I never used the Malaysian firmware but I can tell you that I've had the Russian one before and my lte signal was pretty bad in Canada. I've reflashed with the Saudi Arabian fw and I'm seeing significant improvements.
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Thanks for the suggestion!
I'll have to give it a shot and see how it goes.

dual sim issue... Verizon/tmobile

I've had duel sims running with no issue since I bought the phone. Now today all of a sudden the Verizon sim will not work in this phone. I've tryed switching positions.... And by itself... NOTHING... I put the Verizon sim in a Verizon phone and works fine...
Any settings or somthing I can check? This phone is begining to be more trouble than it's worth.
Are you sure a Verizon sim will work with this phone? Usually Verizon runs on the CDMA network. If the phone is GSM only, the Verizon sim reverts to voice over LTE. As far as i know, this phone does not support voice over LTE.
I'm just guessing.
An educated guess though
But check the data network settings.
Play with the dual sim settings.
Sometimes one of my sim slots just disconnects for no reason
stealthj said:
Are you sure a Verizon sim will work with this phone? Usually Verizon runs on the CDMA network. If the phone is GSM only, the Verizon sim reverts to voice over LTE. As far as i know, this phone does not support voice over LTE.
I'm just guessing.
An educated guess though
But check the data network settings.
Play with the dual sim settings.
Sometimes one of my sim slots just disconnects for no reason
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Definitely works..... I've since got it working once again but no idea how. See screen shot
DrmMaster said:
Definitely works..... I've since got it working once again but no idea how. See screen shot
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It seems like the vivo nex snapdragon 845 version (the pop-up camera one) is missing a band 13 for 4G lte. Does that impact the connectivity in any way on Verizon?
Also is your model the chinese rom or the global rom?

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