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My XDA II is not getting any signal from anywhere.. Flight mode is off, wireless is on.. Beside the signal icon is an exclamation mark that just stays there. It just says "No service" when tapped on.. I've tried other sims but nothing worked. The sim cards work fine with other phones.
The Xda II detects the sim card because it can read it's phonebook thru "sim manager". I've tried searching network and stuffs but still nothing. I did the soft and hard reset but to no avail.
Can anyone please help me???? Is this a usual problem??
Is it a new XDA II ? or second hand bought ?
Did it ever work ? When did it stop working?
Did you do an upgrade ?
What radio version ?
What model ?
It could be you have a stolen XDA II and that it is blacklisted.
It could be that the upgrade went wrong and you have no radio.
It could be that it is set to the wrong band. 850/1900 900/1800
SEcond Hand. Haven't done an upgrade.
I just tried using other network's sim and it worked.. only sims from the network it was bought from don't seem to work..
How do you change the bands?
About those bands I don't know much. I just read that it is a problem, but mostly in the US.
It could be that it is blaklisted at one operator, and that it works with other operators. But I was under the impression that all operators should use the blacklists.
You could call helpdesk/go to shop of your operator and ask why it doesn't work and if it is blacklisted.
Would they confiscate the unit if it is blacklisted?
Thanks for the replies M4IO..
I don't know, I've never had one.
you could just phone them from an anonymous phone, tell them that you want to buy a second hand phone, but first want to check.
If you know anybody who travels abroad, ask them to take it to another country, if it works there then you know it is blacklisted in your country.
Hey there xdadevs, newbie here. I'll try to keep this as detailed and to the point as possible.
Problem
So I've got a Cincy Bell XT720, and I've gotten it properly SIM unlocked and rooted. I'll go to search for networks, consistently pick up Wind Home, and then attempt to connect to it. I'll select Wind Home, and immediately get a notification that says that "Selected network (WIND Home) unavailable", but it'll continue to try to connect to Wind Home. 1-2 minutes later, I'll get a message saying that "Your SIM card does not allow a connection to this network".
What I've Done to Try and Fix It
- Configure APN settings properly
- Reseat SIM Card
- Load Cincy Bell Stock 2.1/Dexter Froyo 2.2/XDA Special RC1 ROMs
- Attempt everything mentioned in this thread here: (http://forum.xda-developers.com/showthread.php?t=974375)
What I think the Problem Is
- Radio/ROM config problem? Can't pinpoint it for the life of me.
- I KNOW it's not a hardware incompatibility problem, if that's a starting point. This is the Milestone XT720 and not the Motoroi, fully capable of supporting the HSDPA 1700/2100 bands that WIND Mobile uses for its 3G networks.
Any help I could get would be greatly appreciated. Right now, my only fallback is this horrid Huawei U1250...it works, but that's like saying that ramen noodles "works" in comparison to a banquet burger with fries. Thanks a ton in advance guys.
Lol, I'm using a CB XT720 on WIND as well, pretty cool. But yeah, mine is working without any issues. Go into a WIND store, show them your issue, and they should be able to replace the sim card. As mentioned in another thread, WIND had some issues with certain sim cards so that may be why your having the connection problems. If that doesn't help, then it's probably something to do with the phone itself.
tharan.a said:
Lol, I'm using a CB XT720 on WIND as well, pretty cool. But yeah, mine is working without any issues. Go into a WIND store, show them your issue, and they should be able to replace the sim card. As mentioned in another thread, WIND had some issues with certain sim cards so that may be why your having the connection problems. If that doesn't help, then it's probably something to do with the phone itself.
Click to expand...
Click to collapse
At least I know that the CB XT720 does work for sure...I can get WIND to check it out (the SIM was ordered back in December or so last year) or even get the phone replaced via Moto warranty if needs be (somehow, still warrantied until March next year). Thanks for the help!
my XT720 is from sigapore and i'm using it on WIND without any issues
using Dexter's froyo ROM
make sure you get the BLACK version of the SIM card, the WHITE SIM cards dies very often
i've replaced both of mines already, they died on their own, both on my Nexus S and XT720
other friends that i've on WIND also had the same problem, with other phones, they also had the WHITE SIM card
just show them the problem, they will change the SIM card for you.
oh! but you need to go to the Corporate WIND stores, not the resellers stores
AllGamer said:
my XT720 is from sigapore and i'm using it on WIND without any issues
using Dexter's froyo ROM
make sure you get the BLACK version of the SIM card, the WHITE SIM cards dies very often
i've replaced both of mines already, they died on their own, both on my Nexus S and XT720
other friends that i've on WIND also had the same problem, with other phones, they also had the WHITE SIM card
just show them the problem, they will change the SIM card for you.
oh! but you need to go to the Corporate WIND stores, not the resellers stores
Click to expand...
Click to collapse
Alright...I'm pretty sure I have the black one (black w/ white trim), but it wouldn't hurt to get a replacement. This one's been in a bricked G1, another G1 that got caught in a torrential thunderstorm (you can tell I don't have good luck with those things), a Huawei U1719, and a Huawei U1250. It's probably just got some age on it by now...flaky with my U1250 anyhow, random (relatively frequent) disconnecting, wouldn't connect the first couple of times, etc. Thanks again, be sure to let you guys know how it goes. =.=
Meh, still got a problem. Tried another SIM, went over to WIND...no such luck. I was told that although the phone may be SIM unlocked and it can see the networks on the 1700/2100 band, the radio's firmware may be locked to prevent a connection (the employee had a similar problem with another phone for Bell). Is there anyone on here who can hook me up with an unlocked radio or a WIND Mobile ROM that could help with this? O-^
Hmmm, strange because I was able to connect to WIND Home on the stock CB 2.1 ROM, Khals MIUI ROM, and Mz's CM6 as well. Perhaps, something is wrong with your baseband? I would try this, if possible, get a friend's sim card (anything but WIND/Mobilicity) and see if you connect to that network whether it be Rogers, Telus, etc. If it can connect, then the phone is able to latch onto the regular GSM frequencies. With regards to an unlock radio or baseband, I'm not sure how thats done but maybe someone else on the forum can help you with that.
For some reason, I'll pop in my Rogers SIM (account was probably deactivated though), and my Moto says:
Emergency calls only
ROGERS
Emergency calls only
Go to check my available networks and..."WIND" is the only one that comes up? No idea as to whether its Home/Away or 2G/3G...just "WIND". Not as if it'll let me connect or anything anyways, same flop as the previous attempts ("Your SIM card does not allow a connection to this network"). :/
http://forum.xda-developers.com/showpost.php?p=10001234&postcount=34 - AHA! Videotron and WIND use the same bands (1700/2100), and some digging around turned that up. Looks like they've been having problems too. Can anyone help pinpoint their radio for me? It seems like that might just do the trick.
Update:
http://forum.xda-developers.com/showthread.php?t=944258#11176044 <- Can someone confirm that this is safe for the XT720? If so, my gut instinct's pretty sure this is exactly what I need...the "freq_F_CN_026-850-2100-signed.zip" one appears to be for Canada, while "freq_F_US_342_107-850-1700-2100-signed.zip" does the frequencies right. O-^
Mann, all I had to do was pop in my sim card and off I went. I think there was a 3G fix around here somewhere, make sure to get someone's "approval" first (one of the more experienced guys) because it may damage your phone. Try this though...
Dial *#*#4636#*#*, go into phone information, and see if anything looks off.
As for frequencies, the country does not matter, the frequencies do...for WIND, you need 1700/2100.
do not use those Defy fixes, it'll probably kill your XT720
RyanGDI said:
http://forum.xda-developers.com/showpost.php?p=10001234&postcount=34 - AHA! Videotron and WIND use the same bands (1700/2100), and some digging around turned that up. Looks like they've been having problems too. Can anyone help pinpoint their radio for me? It seems like that might just do the trick.
Update:
http://forum.xda-developers.com/showthread.php?t=944258#11176044 <- Can someone confirm that this is safe for the XT720? If so, my gut instinct's pretty sure this is exactly what I need...the "freq_F_CN_026-850-2100-signed.zip" one appears to be for Canada, while "freq_F_US_342_107-850-1700-2100-signed.zip" does the frequencies right. O-^
Click to expand...
Click to collapse
Whew, alright. Good thing I asked first, thanks. I still can't get it to work properly...I'm more than likely going to have to ditch this thing and go with a G1 or a Touch Pro 2 if I don't have any better luck with it. Thanks for all the help though guys. :/
Have you flashed a sbf? If so, which one? If not did you buy this phone from Wind or somewhere else? If it is a baseband software problem, then perhaps flashing a different sbf will help (Maybe one of the North American ones-- CBW or brightpoint).
Mioze7Ae said:
Have you flashed a sbf? If so, which one? If not did you buy this phone from Wind or somewhere else? If it is a baseband software problem, then perhaps flashing a different sbf will help (Maybe one of the North American ones-- CBW or brightpoint).
Click to expand...
Click to collapse
STR_U2_04.1E.1_SIGNED_USASHLSTAB14P2XAPCNCBW039.0R_NACBW_P011_A006_HWp3_1FF (Cincinnati Bell)...that's the only .sbf that I can get RSDLite to recognize for some reason. Attempting to pull up one for the UK or the US Brightpoint for example leaves the File Properties section blank and my start button disabled. I have version 4.5.3, if that's any help. Any hope of a miracle here?
Also, I bought it from a third-party in the US...didn't know what carrier it was with, but after some digging around and checking the "S/W" I found it to be Cincinnati Bell. Ideally I'd be looking for a WIND sbf, but I don't think anyone here's managed to get their hands on one. I'm almost at the point of just trying to take it apart to see if there's something loose in the hardware. Someone else on here was saying that there was a loose cable or somewhat that was preventing their UMTS from working properly (can't find the link). Everyone's saying it should be working just fine, I can't really see any alternative besides the baseband perhaps being flaky.
RyanGDI said:
STR_U2_04.1E.1_SIGNED_USASHLSTAB14P2XAPCNCBW039.0R_NACBW_P011_A006_HWp3_1FF (Cincinnati Bell)...that's the only .sbf that I can get RSDLite to recognize for some reason. Attempting to pull up one for the UK or the US Brightpoint for example leaves the File Properties section blank and my start button disabled. I have version 4.5.3, if that's any help. Any hope of a miracle here?
Click to expand...
Click to collapse
Yup, that's the Cincinnati Bell sbf. The brightpoint one is essentially identical but unbranded--the only differences are things like default webpage in the browser and preloaded bookmarks, etc. I don't know a lot about basebands, but I do know the only way to change the baseband firmware currently is with sbf. I think yours is fine, though. AllGamer is our resident WIND expert, so if his advice didn't help, I'm afraid I don't have much more to offer.
Actually, if this is a Cincinnaiti Bell phone, maybe it's SIM locked to CBW...? I know both of mine are. Does anyone know how to test that? SIM locks are also black magick to me.
Yup, that's the Cincinnati Bell sbf. The brightpoint one is essentially identical but unbranded--the only differences are things like default webpage in the browser and preloaded bookmarks, etc. I don't know a lot about basebands, but I do know the only way to change the baseband firmware currently is with sbf. I think yours is fine, though. AllGamer is our resident WIND expert, so if his advice didn't help, I'm afraid I don't have much more to offer.
Actually, if this is a Cincinnaiti Bell phone, maybe it's SIM locked to CBW...? I know both of mine are. Does anyone know how to test that? SIM locks are also black magick to me.
Click to expand...
Click to collapse
Already removed the SIM lock (got that taken care of well beforehand)...I guess I'm on my own then.Thanks everyone, I appreciate the help regardless. :3
RyanGDI said:
Already removed the SIM lock (got that taken care of well beforehand)...I guess I'm on my own then.Thanks everyone, I appreciate the help regardless. :3
Click to expand...
Click to collapse
i have a hunch you are still SIM locked, that error message ("Your SIM card does not allow a connection to this network") you keep having, kinda of suggest that
an easy way to find out, is to see if anyone have an extra unused Cinncinaty Bell's SIM card, and send it to you, so you can pop it in, and if it doesn't give you any error message, but "R"oaming, then that is a good dead indicator that the phone was not properly unlocked.
also in regards to the stock ROMs
you should have no problem flashing any of the .sbf files
my phone was originally an Asian one, then i flashed it to use the UK ROM, and after that i flashed the Dexter 2.2 to it
So are you saying that its possible that an unlock code can "unlock" the device (pass the unlock code request) and allow it to accept a foreign SIM, but still fail to allow it to connect to the SIM's networks? It'd make perfect sense if Rogers was an affiliated network with Cincinnati Bell (for roaming), since it'd be "mutual ground" between WIND and CBW. And then the SIM wouldn't be able to connect to WIND's exclusive 3G network since it was never on the "allowed" networks as defined by Cincy? =.=
if you are in Toronto, i'll suggest you go to P-mall, any of those cell phone stores there can help you unlock the phone for sure
or you can try your luck online with different ways to unlock the phone
quite sincerely we never really talked much about SIM unlocking of this phone within this forum.
perhaps a DEV might be able to help you figure out how to unlock it for free
because if you go to the malls they might charge you an unlocking fee regardless
although with the chinese places you can argue it didn't work, and they will not charge you for the unlocking
I have read a few threads about this issue, but none of them seem to be the same exact problem..
Right now I am running ParanoidAndroid 2.15 with InstigatorX 6.3.6 kernel.
When I first noticed the problem I was on PA 2.13/IX 6.3.6 I believe and I was using the UCLF6 modem.
My network connection was fine until one day I noticed that I had 0 connectivity and when I tried to make a phone call it said I wasn't registered on the network.
Sooo the issue..
My network connection constantly shows that I am not connected to the ATT network, sometimes the network is out for a good 5 minutes or so before it connects to it again. When it does connect to the network it usually shows up as connected to the Edge network..once in a while it will show 3g; I used to have full bars of 4g/hspa.
After a few minutes go by, the network connection cuts off and I am again once disconnected from the network.
From the time I had no problem with my connection to when it started disconnecting from the network I have no idea what happened.
Yes, I do flash ROMs a lot, but this seemed to happen over night. (I had not messed with my ROM for a good while and then BAM my network blows 'all of a sudden')
Things I have tried..
I have tried different roms, different modems, I have tried the whole airplane mode deal, tried pulling the batter, I have reverted back to stock using Odin and the stock ROM file. My IMEI number shows up correctly, my settings are default as far as allowing data connections ect.
I am not sure if there is anything I can do besides call up the warranty department and try and get a new phone, but I wanted to ask here before I did that.. I've already returned my phone like 2 or 3 times since February lol.
Try getting a new SIM card from AT&T. There is a $10 fee for it, but I had a similar problem and this fixed it for me. My phone would lose service and say "No SIM card inserted" then I would hit restart and everything would work except phone calls. I had to remove the SIM for a few minutes and put it back in in order to make or receive calls.
Sent from my SGH-I727 using xda app-developers app
Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!
Well dang, I was wishing and a praying I'd come back to some good news lol. Oh well
mtu_husky said:
Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!
Click to expand...
Click to collapse
happened to me today. att rep told me i need ti turn gps on all the time bulls***!
Sent from my SAMSUNG-SGH-I727 using xda premium
Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.
askpcguy said:
Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.
Click to expand...
Click to collapse
I've tried using Odin to stock ICS and also GB, but the problem still occurs =\
Did you unlock it?
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.
canadianclub said:
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.
Click to expand...
Click to collapse
Unlock it as in use it with a different carrier right? No I havent done that, just rooted it.
I've never had any problems with my connection until this JB rom I had on it =\
But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium
askpcguy said:
But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium
Click to expand...
Click to collapse
Yes, they are the same :crying:
Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium
askpcguy said:
Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium
Click to expand...
Click to collapse
I'm not 100%, but I don't have any warnings about my SIM card or anything
Same boat
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
On Rogers, if I select GSM only, it will register on the Network and connect with EDGE speeds
It has been Carrier unlocked at some point but it was working that way for a while. You can check by using this service code: *#7465625#
Tried multiple SIM cards that work with other phones.
Verified that the IMEI number matches what is on the sticker *#06# Rogers told me if I can make calls on the GSM network than the IMEI isn't blocked. Don't know if that's true but it makes sense.
Went back to stock everything (Modem, CSC, ROM) then I upgraded to ICS OTA.
Enable SIM lock, Disabled SIM lock.
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
I've got another 717r coming to me. I think I'll try backing up the EFS folder and restoring it on this phone just to verify it's not corrupt or a blocked IMEI.
pot srarnewi
tweebs said:
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
Click to expand...
Click to collapse
I'm not sure about that one.
But what ROM do you use? It seems like this only happens with people who have JB ROMs..it looks like..
I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.
I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.
Click to expand...
Click to collapse
I am having the same issue. Did you receive the SIM card and did it fix it?
Try going to retail at&t store and show them. Get you a new device.
Sent from my SGH-I727 using xda premium
i have a htc desire Z currently and i recently went to california to spend some time with my gf's family but my phone just did not work over in america....
im in a 18 month contract with Orange (or EE now) and when I got to america i was not registered to any UK carrier so I tried to connect to the two possible carriers available T-mobile and AT&T but both said my sim card was unable to register with these carriers.
i have no idea why or what causes this issue but i want to make sure that next time when i leave to go to the US my phone is going to work...
im getting a new phone soon and want to know what the fix is before i get a phone that wont work in the US again...
PS. im rooted and using a custom rom called mimicry if that has any foot on the problem.
thanks in advance
Are you still using the SIM card from the UK? If so, you need a US SIM card to communicate with the GSM towers here.
syung said:
Are you still using the SIM card from the UK? If so, you need a US SIM card to communicate with the GSM towers here.
Click to expand...
Click to collapse
i brought my gf a phone a Tesco mobile carrier in the uk and hers worked over there... so some work, i just need to know which ones do or how i can connect to the gsm towers. i dont actually care about using the phone service too much because i mostly do my networking via skype and whatsapp but i was unable to access the wireless connection too (probably related as well)
no access to any signal was available. my gf had no troubles though, she texted and called and used internet on wifi but internet didnt work outside of wifizone which is the same thing im looking for.
bump - does anyone have any information on this?
I hear sth about it usa doesnt use umts and they have different frequency than Europe probably this is the reason
Wysyłane z mojego GT-I9300 za pomocą Tapatalk 2
penfold1992 said:
i have a htc desire Z currently and i recently went to california to spend some time with my gf's family but my phone just did not work over in america....
im in a 18 month contract with Orange (or EE now) and when I got to america i was not registered to any UK carrier so I tried to connect to the two possible carriers available T-mobile and AT&T but both said my sim card was unable to register with these carriers.
i have no idea why or what causes this issue but i want to make sure that next time when i leave to go to the US my phone is going to work...
im getting a new phone soon and want to know what the fix is before i get a phone that wont work in the US again...
PS. im rooted and using a custom rom called mimicry if that has any foot on the problem.
thanks in advance
Click to expand...
Click to collapse
Before you buy your new phone, check on GSMArena for the full specs and see what frequencies it supports - then make sure those match with the frequency your planned provider in the US uses.
And, please don't 'bump' your own posts - there's no need and it's contrary to the rules of XDA to do so within 24 hours.
SimonTS said:
Before you buy your new phone, check on GSMArena for the full specs and see what frequencies it supports - then make sure those match with the frequency your planned provider in the US uses.
Click to expand...
Click to collapse
is there a possibility to change the radio part of a rom in order to use frequency to at least get onto a network?
my phone
gf's phone
it appears as though my phone has the ability to work in the US however it appears to work with either one or the other and not both at the same time... if i got that correct?
(seeing as USA coverage accepts UMTS 850, 1900, 1700 and 2100 and the UK uses UMTS 900 and 2100 i need to look for a phone that runs on 2100)
Hello,
I am from India. I had purchased a Google Nexus 5 phone (Black/ 32GB) last year (December 20th, 2013)
I have started facing a serious issue since yesterday. My entire mobile network went down all of a sudden. Tried using other SIM but of no use. The same SIM works fine in other phone. Other functions including WiFi in Phone works perfectly fine.
A couple of things that I noticed are:
1) When I try to search for the Network manually, I get the message "Error while searching for Network".
2) I noticed that the PREFERRED NETWORK TYPE is defaulted to LTE. I cannot select any other option 2G or 3G.
3) When used Choose Automatically option - it starts with Automatic Registration and then flashes an error "Can't connect to this network right now try again later"
I tried doing a Factory reset hoping that it would work. But, no success. Have contacted LG Direct Service Center (since I bought it from retailer and not from GooglePlay store) and they suggested it's a PCB problem and it needs to replaced which would cost me around 12K INR. Which I am not ready for.
Please let me know what needs to be done. Any help is highly appreciated.
Regards,
Vijay
Turn off airplane mode
dicecuber said:
Turn off airplane mode
Click to expand...
Click to collapse
He's clearly not in airplane mode.
I have tried with all basic troubleshooting options, kindly check the attached screenshots. Please please help needed urgently.
I was going to make a new thread, but his problem matches mine almost exactly.
Hi guys, i have this problem for over a week now.. A very frustrating week i must say. I got this n5 about a month ago, my uncle got himself a G3 and gave his nexus to me.
Everything was smooth, amazed by the phone, everything working fine, happy as hell. It all crumbled when I went to spend the holidays at my brothers, where he lives my carrier doesn't work (everyone uses another one). When i got back to my house where the mobile network works fine it just stopped. All other sims would work on my phone and my sim work on other phones.
I gave it a time, thought it would be cause i spent too much time on my brothers and it would be ok after a while. It didn't. Then i started to worry and try to fix it somehow. First i got a new simcard (same carrier), no bueno. They told me to restore my phone and stuff, it didn't work. The phone has always that empty triangle, doesn't matter if it's 3G, 4G or 2G.
So I came to the internet look for help. I saw that some people had bring this to the LG, their response was to do a recovery with fastboot and then put 2G on the mobile network. For a moment i thought it was over, my phone finally had some bars !! But to my disgrace I can't make nor receive calls, i can only send/receive SMS and access internet thru 4G, not 2G as the support said. Oh, if i put 3G or 2G dem bars go missing and the empty triangle ****er appears again. Still, my simcard works on every other phone but now only one carrier works on my phone (not mine unfortunately).
Then I started looking on forums like this one and a whole bunch of others and tried many things, all of them unsuccessful.
I tried many things, maybe forgot some but will list those that i remember.
I tried to flash the factory rom. Then tried to flash only the radio of previous androids (tried too many of them to count). Dialed that *#*#4636*#*# or smth, put LTE/GSM, only LTE, activated/deactivated radio. Airplane mode on/off. Tried to recovery on fastboot again. Tried to make new APN. To finish my story, put a Cyanogemod rom and it also didn't work.
So now i decided to post here as my last shot before i go to that carrier that still works. Also, what guarantees that this carrier won't stop working like the others? I'm afraid that may happen. Further informations, i saw many people complaining about T-Mobile and other carries, but I'm brazilian, so it's not one of these. My carrier is Oi and the one that still works is TIM.
The two threads i got most tips were these and some sites in portuguese:
http://forums.androidcentral.com/google-nexus-5/357547-nexus-5-cell-signal-problem-s-fix.html
http://forum.xda-developers.com/google-nexus-5/help/bug-make-receive-calls-wifi-enabled-t2839814
Thank y'all in advance and sorry if my english make it hard or impossible to understand.
My fingers are crossed!