[Q] No 2g signal on OnePlus one - ONE Q&A, Help & Troubleshooting

I have got a Chinese 64gb OnePlus One and official CM11s33r installed.I flashed many roms,modems and unlocked all the bands Qualcomm supports.Obviously 2g has native support by Oneplus One but i cannot activated.By the way i have 3g signal yet its very weak and unstable.
What do you think? How can i solve this huge problem?

Why not use LTE?
Transmitted via Bacon

timmaaa said:
Why not use LTE?
Transmitted via Bacon
Click to expand...
Click to collapse
I dont have 4g in my area.Also 3g signal is very weak at home,2g has the strongest signal but my mobile just doesnt find it.

maskelisuvari said:
I have got a Chinese 64gb OnePlus One and official CM11s33r installed.I flashed many roms,modems and unlocked all the bands Qualcomm supports.Obviously 2g has native support by Oneplus One but i cannot activated.By the way i have 3g signal yet its very weak and unstable.
What do you think? How can i solve this huge problem?
Click to expand...
Click to collapse
In my country I have H3g and can't work on 2g

No 2g
kamael71 said:
In my country I have H3g and can't work on 2g
Click to expand...
Click to collapse
I switch 2g where 3g signal is not available and get stay connected.Thats why i need 2g.Of course i prefer 3g but sometimes i need 2g.
By the way, i flashed color os 2.13 last night,no 2g again and color os indicated full 3g reception but it was not correct,i know that i dont have full 3g reception at home.Then i flashed CM11s restored image on my phone and my 3g reception is better in CM11s now.I am not complaning but i dont know what happened.

Related

China OPO in Canada (Toronto)

Hi all, it's been a while since I was last on XDA.
I recently received a One Plus One in Hong Kong and I am unable to tell if I got the China or the International Version.
I do not receive LTE in uptown Toronto but I do get LTE in downtown. This leads me to suspect this is a China device as it doesn't support band 7 lte.
I am currently using Virgin Mobile (Bell network) and I think Bell uses Band 4 and 7 LTE (Please correct if I am wrong).
Is there anyway I can tweak the phone software wise to enable LTE on the network? it really bothers me sometimes when I can't load a page instantly and instead have to wait for a good 8-10 seconds.
Thank you and happy holidays!
There's one very easy way to tell which version you have, the international version has Cyanogen branding on the back and the Chinese version doesn't.
Transmitted via Bacon
Unfortunately, mine doesn't have the cm branding on it
Is there a way to enable those lte bands still?
Differentiation said:
Unfortunately, mine doesn't have the cm branding on it
Is there a way to enable those lte bands still?
Click to expand...
Click to collapse
It is IMPOSSIBLE that you get LTE on the Chinese version of the phone, you can't get it in downtown and not in uptown... You have it or you don't
Try here not sure since i am not following that thread anymore
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Cholerabob said:
It is IMPOSSIBLE that you get LTE on the Chinese version of the phone, you can't get it in downtown and not in uptown... You have it or you don't
Try here not sure since i am not following that thread anymore
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Click to expand...
Click to collapse
That's really weird, I have the LTE signal in downtown but not uptown!
When I was using the HTC One, I was able to get LTE both down and uptown too!
Bump, thanks.
Differentiation said:
Hi all, it's been a while since I was last on XDA.
I recently received a One Plus One in Hong Kong and I am unable to tell if I got the China or the International Version.
I do not receive LTE in uptown Toronto but I do get LTE in downtown. This leads me to suspect this is a China device as it doesn't support band 7 lte.
I am currently using Virgin Mobile (Bell network) and I think Bell uses Band 4 and 7 LTE (Please correct if I am wrong).
Is there anyway I can tweak the phone software wise to enable LTE on the network? it really bothers me sometimes when I can't load a page instantly and instead have to wait for a good 8-10 seconds.
Thank you and happy holidays!
Click to expand...
Click to collapse
NOTE: I am on Rogers Wireless.
I get LTE in Markham, Richmond Hill (A lot of H+, little LTE rates compared to downtown), Mississauga (Also a little, but a lot of H+) and Downtown (97% LTE rates)
Differentiation said:
Unfortunately, mine doesn't have the cm branding on it
Is there a way to enable those lte bands still?
Click to expand...
Click to collapse
Flash the latest 44S or 38R modems. Get out of the stock ColorOS modem.
Cholerabob said:
It is IMPOSSIBLE that you get LTE on the Chinese version of the phone, you can't get it in downtown and not in uptown... You have it or you don't
Try here not sure since i am not following that thread anymore
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Click to expand...
Click to collapse
This is false information, they are both the same device. The modem just needs to be flashed out of the stock ColorOS modem.
Differentiation said:
That's really weird, I have the LTE signal in downtown but not uptown!
When I was using the HTC One, I was able to get LTE both down and uptown too!
Click to expand...
Click to collapse
I understand, I was confused before when I had 25R modem installed, I didn't get LTE much, and I switched between G, H and H+ when I was riding the GO Train.
There's no difference between the China and International models, except the Cyanogen branding. Just need to get out of ColorOS modem.
I can confirm this as I have a Black China Model OnePlus One, and the Limited Edition OnePlus One Bamboo (which is only available in China). I'm from Hong Kong too so I handed over 4 OnePlus Ones to my friends in Toronto, from Hong Kong.
That is very good news to me. I will search a bit regarding that modem.
Thank you!
Differentiation said:
That is very good news to me. I will search a bit regarding that modem.
Thank you!
Click to expand...
Click to collapse
Good luck man, hope you get better signal!
Just fyi, when I ran ColorOS modem, I got worse signal than CM11 modems, but no modem is the best, you should try a few from this thread:
http://forum.xda-developers.com/oneplus-one/general/ref-oneplus-one-modem-collection-t2858734
You can see a chart to see the difference between the modem versions, as they all report the same values in About Phone.

nexus 5 cellular data problem

Dear XDA community
I have a D821 device and since I started using mobile data I noticed that I was having a very unusual issue. I was getting only 2G and 4G signals with greek carrier COSMOTE GR & VODAFONE GR. Max signal on cosmote was Edge and when on 4G coverage 4G. On Vodafone I'm getting GPRS only. Any member had any similar issue and any solution to Fix it? Can it be a software issue or hardware?
VER5Uz said:
Dear XDA community
I have a D821 device and since I started using mobile data I noticed that I was having a very unusual issue. I was getting only 2G and 4G signals with greek carrier COSMOTE GR & VODAFONE GR. Max signal on cosmote was Edge and when on 4G coverage 4G. On Vodafone I'm getting GPRS only. Any member had any similar issue and any solution to Fix it? Can it be a software issue or hardware?
Click to expand...
Click to collapse
I think that this is just about coverage and signal strenght of your providers.
zagorteney said:
I think that this is just about coverage and signal strenght of your providers.
Click to expand...
Click to collapse
My carrier works just fine on my z1 compact with hsdpa+ and 3G so that's what concerning me
@VER5Uz
Xperia has better radio then our devices. My son use XperiaU and he get better signal then me in areas with low coverage. Also my wifes N4 is better in this.
zagorteney said:
@VER5Uz
Xperia has better radio then our devices. My son use XperiaU and he get better signal then me in areas with low coverage. Also my wifes N4 is better in this.
Click to expand...
Click to collapse
So it's just phones antenna not receiving good. Damn I'm on that issue over 2 months and I'm getting so mad having so slow speeds. Is there a utility to confirm if the antenna is not malfunctioning
Buys an LG device, gets crappy LG antenna lol
Change modems and see if it helps.
Sent from my Nexus 5 using XDA Free mobile app

help needed to use 4g only Sim in 3g phone(devs help)

Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.
bhavinlanse said:
Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.
Click to expand...
Click to collapse
In no way you can change the frequencies if phone's modem doesn't allow you. It's not just faking the icon on status bar.
Sent from my SM-G935F using Tapatalk
bhavinlanse said:
Hi guys recently reliance jio in india launched new 4g service with 4 GB daily free usage for 4 months and unlimited calls for free. they only provide service to 4g lte phones.I know that I will get only 3g speed but that's not a problem. Is there any tricks to use 4g sim on 3g phone. I tried dialing *#*#4636#*#* and selected lte but the menu comes back to wcdma . is it possible to do system changes to trick the phone that it's network is 4g.I use cm 12.1 rooted. If any one can help it will be awesome.
Click to expand...
Click to collapse
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
mrn219 said:
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
nice! but works only on qualcomm devices
Sent from my SM-G930F using Tapatalk
mrn219 said:
hi ....i guess the solution is here
https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
It just just unlocks available bands
If your modem does not have LTE band then its useless
It unlocks all bands which the modem supports nothing more
Wuby986 said:
nice! but works only on qualcomm devices
Click to expand...
Click to collapse
right...
The Hard Gamer said:
It just just unlocks available bands
If your modem does not have LTE band then its useless
It unlocks all bands which the modem supports nothing more
Click to expand...
Click to collapse
Idk... maybe the hardware supports it but needs some software changes ... like driver ...
My device (lenovo a3000h) apparently doesn't support 4g but there is "LTE" option in network type in "tablet information "...
I don't think that you can do that.
If the network only uses LTE bands, there's no way you can get '3G speeds' or use your SIM card in a phone that doesn't support LTE.
Sent from my SM-G935F
I tried to find what's the difference between 3g and 4g devices but couldn't find what i wanted ...
maybe both have the same hardware but 4g needs different software and stronger processor ...and they locked it in weak phones to prevent crashes...
how can i unlock my Sprint AQT80 to work on any LTE/CDMA newtork?
plz help and thanks in advanced

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.*?

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.

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