Potential Signal strength fix (USA users) - ONE Q&A, Help & Troubleshooting

Calling all US bacon users with signal strength issues, spotty connectivity, and spontaneous radio switching.
The OnePlus One defaults to TD-scdma which is a Chinese radio protocol and is not optimal for use in the united states.
US users should use the following:
"LTE/GSM auto (PRL)"
This will ensure your phone seeks out LTE for Data and properly switches you to GSM and HSPA+ for voice. If you are in a very poor LTE area this PRL preferred roaming list protocol will default more willingly to H+ HSPA+ data which is the next best thing.
To enable this radio protocol do this:
-Dial *#*#4636#*#*
-Choose phone information
-set preferred network type
-LTE/GSM auto (PRL)
Profit!
***If you reboot your phone you will have to reset these settings as they don't persist after reboot.***

Are you using the Chinese OPO? Because I'm on the international version and do not have the option TD-SCDMA.
I don't have any signal problems, but for sure it should be on LTE/GSM auto (PRL).... TMo and AT&T don't use CDMA so theres no point in having that on.

zephiK said:
Are you using the Chinese OPO? Because I'm on the international version and do not have the option TD-SCDMA.
I don't have any signal problems, but for sure it should be on LTE/GSM auto (PRL).... TMo and AT&T don't use CDMA so theres no point in having that on.
Click to expand...
Click to collapse
..

TD

International OPO with the latest CM11S radio does not have this option.
http://i.imgur.com/efeonOP.png
http://i.imgur.com/txnQbmi.png
Maybe its just me. T-Mobile doesn't use CDMA. LTE/GSM is sufficient enough.

I'm able to roam on CDMA using my T-Mobile opo

If you have the international version then what do I have? I assumed that since I had all this Chinese preferred network protocol that I had the international version

bash_array said:
If you have the international version then what do I have? I assumed that since I had all this Chinese preferred network protocol that I had the international version
Click to expand...
Click to collapse
The Chinese OPO is specific to Chinese markets that utilize the TD-SCDMA. The international is everywhere else other than China.
Its pretty easy to see if its a Chinese OPO, on the back of the OPO, it should have the Cyanogen logo. Although you do get LTE on TMo so you probably have the International. Odd, must be because I'm on a custom ROM thats not giving me the option of TD but thats fine because TD isn't utilized outside of China.

I've got the cyanogen logo

Mine is the international, as the TD, CDMA and the LTE. There is a bunch in that list.

I guess it was my custom ROM that removes it from the list
Odd... they should remove it from the list from the international versions but I guess they left it there for those in China who decides to flash CM 11S over ColorOS.

Related

Q: Nexus S Fido Canada Roaming Icon?

So I bought a Samsung Google Nexus S i9020A 850/1900 3G Unlocked from a US Vendor and I put my FIDO simcard in and everything is fine, but I'm seeing the roaming icon, although I am clearly on Fido and in Canada. For 3G to work, I had to turn "International Data Roaming" ON.
Now to the question: Will I be charged for roaming (data and/or voice) by FIDO?
Thanks,
A
yes the stock ROM has outdated Canadian company GSM info
you don't get charged Roaming unless you exit your regular service area
Fido = Rogers
AllGamer said:
yes the stock ROM has outdated Canadian company GSM info
you don't get charged Roaming unless you exit your regular service area
Fido = Rogers
Click to expand...
Click to collapse
thanks. will flashing CM's ROM fix this? or should I be flashing a newer radio?
it was the same problem for Windmobiles
it was only showing the network number instead of the name
the latest 2.3.3 patch fixed it for me
I'm hearing reports of this for NS models bought in Canada and used on a different carrier. I don't known an NS but I'd be useful to know what to tell people is the solution.
Radio UKCD1 has the correct carrier info and gets rid of the roaming icon. This was the radio that either came with my phone purchased from FIDO, or was updated when I installed 2.3.4.
I'm personally using XXKB3 as it gives me a way noticeable difference in signal strength here in Winnipeg. I'll live with the roaming icon for now.

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??
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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 #
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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).
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
yes I got my issue fixed. Can u confirm which device you have? software version *.*.512* or *.*.605.*?

T-Mobile LTE in US isn't working...ideas?

I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
4G+ is the UK's LTE as far as iconography is concerned. Have you done a speediest on 4G+?
I've noticed the same thing, but I (as mentioned above) thought that LTE and 4G+ were synonymous. I think the only reason to flash a region based image would be to enable radio bands that are disabled based on location (which may be in this case).
Works fine here. Lower Manhattan using same version.
4G is LTE in US.
Download LTE Discovery and you'll be able to see if it is connected to LTE or HSPA(+). Mine, also from Clove, is just fine with AT&T LTE.
nd_geek said:
I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
Click to expand...
Click to collapse
You are looking at the signals wront, I'm on T-Mobile and have 4G+ as well it's the UK version of LTE. Look at my screenshot.
nd_geek said:
I imported the 8141 from Clove in the UK. So far, my only real issue is I have yet to see it connect to LTE. I've seen "4G" and "4G+", but no LTE...which is a problem because I can barely pick up a signal other than LTE in my area. I checked and confirmed it's using the correct APN (fast.t-mobile.com). I'm on the 110/unlimited/unlimited $30/month prepaid plan and confirmed I haven't hit the LTE cap. If I put the SIM back in my Moto X Pure/Play, it hops on LTE without a problem.
Everything I've read says the radio should support T-Mobile's frequencies. Is there another setting somewhere I need to change? Do I need to flash another region's stock ROM (and is that even possible yet)? Did I get a lemon? Do I need to hold it a certain way like whatever iPhone it was a couple years back?
Any and all suggestions are welcome.
Click to expand...
Click to collapse
4G is basically the same thing as LTE in this case. 4G includes WiMax and LTE. So when you see "4G" it means you're using LTE. The same goes with 4G+ - LTE-Advanced (LTE+).
I have LTE logo on my Z3 while Z5 Premium shows 4G while using the same network.
4G is LTE in europe. We did not have that silliness that some 3,5G was called 4g. Also there is no band limitations on XZ Premium.
For app to check which band of spectrum you are connected to, please use Cellmapper app (from my signature).
If you wish to see different icon in there, you could flash Customized DE firmware which has "LTE" icon. But this has only cosmetic effect.
Instead of making a new thread, anyone knows if VoLTE works with the XZ Premium for T-Mobile?
Currently no. You need region or operator specific image Flashed (oem.sin) but there is none for XZ Premium.
But there is hope as there is t-mobile us specific modem configuration in all region images.. which will be loaded when you have correct oem image Flashed.

oneplus one - lte issues

Hi i have tried so many times restoring it back to cm 13.1.2 and i have had no luck i am stuck using 3g network and i get perfect signal could somebody please help me
kallum7 said:
Hi i have tried so many times restoring it back to cm 13.1.2 and i have had no luck i am stuck using 3g network and i get perfect signal could somebody please help me
Click to expand...
Click to collapse
I'm going to assume your carrier is an MVNO such as Metro PCS, the most problematic carrier with this device? If not, what carrier do you use?
Most of the times the fix is pretty simple. Go to Settings > Cellular Networks (make sure under Preferred network type LTE is selected) > Access Point Names and chose your correct APN. Is it jumping back to the incorrect one? Delete that incorrect one and any other ones that are related to the "parent" carrier and then chose the correct one. You can delete it by going into the APN as if to modify it and tapping the 3 dots on the top right. Can't find your carrier's APN? Delete all APNs one by one, then add yours, save and and select it.
If the above does not work, ensure that the OPO supports your carrier's bands, specifically for LTE.
Hi my mvno type is spn
One
kallum7 said:
Hi my mvno type is spn
Click to expand...
Click to collapse
Hi I have tried what you had said and it is still not working
​
kallum7 said:
Hi i have tried so many times restoring it back to cm 13.1.2 and i have had no luck i am stuck using 3g network and i get perfect signal could somebody please help me
Click to expand...
Click to collapse
kallum7 said:
Hi I have tried what you had said and it is still not working
Click to expand...
Click to collapse
What is the name of your carrier and in what country?
The name of my country is united king down and my carrier is tesco mobile
kallum7 said:
The name of my country is united king down and my carrier is tesco mobile
Click to expand...
Click to collapse
Sorry for the late reply. According to information I find on the web, Tesco Mobile uses Band 20 for 4G, which the OnePlus One does not support. Other websites mentions it using Band 40, but I believe this is based on the fact that O2 (the parent carrier) has obtained this band and may not be fully implement on the MVNO (Tesco Mobile). I would suggest calling them to find out what 4G/LTE band they use. If they use Band 20 (frequency 800MHz), you will only get 3G, or HSPA/HSPA+ (H or H+ icon for your data on the top right). If it supports Band 40 (frequency 2300MHz), then we can try and see what is going on that may be stopping your 4G/LTE from working.
they use 800
mhz
kallum7 said:
The name of my country is united king down and my carrier is tesco mobile
Click to expand...
Click to collapse
kallum7 said:
they use 800
mhz
Click to expand...
Click to collapse
Yes, sadly that means Band 20 for 4G LTE, which the OnePlus One does not support. You will only get 3G. Some carriers call HSPA+ "4G" because it can achieve decently high speeds for video streaming and so on, which isn't bad.

Just got a S8+ and found out it doesn't support my carrier's network band

Just got a S8+ from my brother and was having some troubles with it (can text/use data but not recieve/make calls) and found out that the cause was because the phone supported the 4G LTE band of my carrier but not the 3G band which is what my carrier uses for calls.
So how screwed am I? is there anything I can do to fix this?
Samsung Galaxy S8+
Model: SM-G9550
Version: 8.0.0.0
nidh0gg said:
Just got a S8+ from my brother and was having some troubles with it (can text/use data but not recieve/make calls) and found out that the cause was because the phone supported the 4G LTE band of my carrier but not the 3G band which is what my carrier uses for calls.
So how screwed am I? is there anything I can do to fix this?
Samsung Galaxy S8+
Model: SM-G9550
Version: 8.0.0.0
Click to expand...
Click to collapse
Try in settings - connections - mobile networks and change network mode to 2g/3g or 3g mode and see if that works.
Note: I am still on nougat so settimgs location may be slightly different on oreo.
spawnlives said:
Try in settings - connections - mobile networks and change network mode to 2g/3g or 3g mode and see if that works.
Note: I am still on nougat so settimgs location may be slightly different on oreo.
Click to expand...
Click to collapse
i've tried it and it didn't work as the specific model phone I have does not support the 3G band of my carrier (Freedom Mobile) so I can't connect to any of my carriers bands aside from the 4g LTE one
nidh0gg said:
i've tried it and it didn't work as the specific model phone I have does not support the 3G band of my carrier (Freedom Mobile) so I can't connect to any of my carriers bands aside from the 4g LTE one
Click to expand...
Click to collapse
Is this your model
https://www.sammobile.com/devices/galaxy-s8-plus/specs/SM-G9550/
If so I would get in contact with your provider and see if is compatible with there network frequencies. apart from changing providers I am not sure what you can do.
If I've done my research properly freedom mobile is Canadian region apparently there are to modes home and away have you tried the away mode
spawnlives said:
Is this your model
If so I would get in contact with your provider and see if is compatible with there network frequencies. apart from changing providers I am not sure what you can do.
If I've done my research properly freedom mobile is Canadian region apparently there are to modes home and away have you tried the away mode
Click to expand...
Click to collapse
yes that is my phone
i think away might actually work really well, how would i force it to only use away/roaming?
okay this is weird, so i turned roaming on, connected to a different carriers network (rogers) and i can text and data fine but still cannot make or recieve calls on a AWAY network....? does this mean it shouldn't be a network band problem?
it shouldnt be my sim card as my sim card works fine on my older phone fine (s7E) and i JUST got it replaced my the warranty service (to fix this problem, which it didnt). It shouldn't be the phone either as my brother put his sim back in the phone and he can make calls fine....... what is wrong here?
IT WORKED THANK YOU SO MUCH!!!
changing to rogers did not work (not sure why? maybe they use the same band is freedom)
however afterwards i changed to telus and i got calls!!
spawnlives said:
Try in settings - connections - mobile networks and change network mode to 2g/3g or 3g mode and see if that works.
Note: I am still on nougat so settimgs location may be slightly different on oreo.
Click to expand...
Click to collapse
any reason why you haven't upgraded yet??
cantenna said:
any reason why you haven't upgraded yet??
Click to expand...
Click to collapse
If you mean upgrade to Oreo I do have some minor issues at the moment nothing really major for me to worry about if I do upgrade. To save going way off topic here might be better to start a new thread or I could pm you if you like.

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