Anyone know why my phone keeps tripping into unknown carrier? - HD2 Android Q&A, Help & Troubleshooting and Genera

The only thing I can't seem to fix is my phone will constantly go to unknown carrier (it still has a signal and functions but it doesn't show T-Mobile as the carrier). I don't have international or roaming enabled and I only have the T-Mobile APN file set. My Rom, Radio, Etc is within my signature, I am running 2.14 because it seems to be the best fit for me here in VA with connectivity and such. Anyone have any suggestions on how to correct this error?
Thanks

Try to use 2G only.
Sent from my HTC HD2 using XDA App

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Roaming Symbol Problem

I just recently bought a Rogers HTC Magic, rooted the phone, and unlocked it. Everything seems to work completely fine. At the moment however, I seem to be having an issue with a Bell Mobility sim card. Bell's HSPA sim works fine, and I seem to be able to use voice and data ok, but the problem lies in that their seems to be a roaming symbol ("R") on my reception bar. Im using the phone in my local calling area which is somewhat misleading to me.
Im using MyHero 2.0.5 ROM at the moment. Does anyone know why this is happening? Thanks in advance!
Agreed
I'm doing the same thing. I'm running cyanogens roms and I get the same thing. Best I can tell is that this is normal on the magic. Just be careful if you live near the border like I do.
I figured this was normal too. I guess i'll try other SIM cards to see what they say as well, thanks!
Ya I also have this phone running on Bell, wish I could get rid of the roaming. It also asks if I want to connect once in a while too.
Shouldn't the romaing be dictated by the sim? I have a bell sim, on the bell network, why do I get the roaming icon? is there a way to change the phone so it doesn't think it's a rogers and not roaming or something?
Are you sure you have the Bell APN Settings and not the Rogers Settings in the phone?
Settings -> Wireless Control -> Mobile Network Settings -> Access Point Names
If it says Rogers you're Roaming on the Rogers Network.
I put in the bell APN. I don't think we can even roam on rogers network, wouldn't work. Either way, it's the Bell APN.
I don't have a clue as to the differences between Bell and Rogers sims... but I can tell you that my HTC Magic, on Rogers, with a Rogers sim (duh), running Amon_RA's most excellent RAv1.6.2H only shows roaming when actually roaming.
I was in the US yesterday and watched it flip from a Rogers tower to ATT. I was watching to make sure it was not using any data when roaming on a US network. The symbol, lockscreen info and the carrier listed in the status pulldown all were updated correctly.
It might have something to do with the ROM you are running. However I bet that given the phone came from Rogers, it has some carrier info buried somewhere that it is comparing to the carrier you are on (Bell) and triggering the roaming status.
If you disable data when roaming in the settings menu, what does it do? If it disables data, then the phone thinks it is roaming, which would support my carrier data mixup theory.
I will try a different rom on the phone. Unless someone knows for sure what I can do to fix this.
If you disable roaming there is no data, because once in a while it prompts to connect, if you say no, you get nothing. Sometimes my wife must accidentally hit no (its her phone, she probably says no cause shes not sure what it does). I just want to make it so she does not get the prompt ever (settings are all set).
I have a rogers HTC Magic (unlocked) I'm using a fido sim, it thinks its roaming as-well but I have only fido apn settings. It only roams with certain roms and radio's. I can use alot of roms eg. cyanogen,Hero HOFO 308,GYD 2.1.1 without roaming but when I update radio and flash cursorsense roms it thinks it is roaming. I have to enable data roaming in order to get a 3G signal. as a fido user I dial *#123# to see if I'm in my local zone zone. A fido tech rep told me that most unlocked phones indicate roaming because of the phones hardware programing. The hard programing of the phones checks the sim and sees that it is using a diff sim card and starts indicating roaming when in fact you are not. A rogers salesman also told me the same thing. He said as long as your carrier is displayed on your phone homescreen then you are good.
I have the AT&T Tilt, not running the AT&T ROM. I've tested a few different SIM cards on my phone and here's what I've found:
Rogers: Roaming works correctly. In Canada, no roaming indicator, in the USA, roaming is indicated correctly.
Telus & Bell (HSPA): Roaming indicator always on.
I've heard that this may be due to the SIM card listing more than one Mobile Network Code: 302361, 302653, 302657 (original Telus CDMA networks, not compatible with the phone or any kind of SIM-based network so it's uncertain why it would be on the SIM card), PLUS the HSPA network code 302880. It's possible that the phone is not reading that far into the list on the SIM and therefore does not know that 302880 is a home network.
Tilt 2 Roaming Triangle and telus
I'm on Telus and have a Tilt2. The original ROM that came with the unit didn't show the roaming triangle. I have attached some screen captures of the ROM. I've attached a copy of the registry (Remove the .cab it was the only way I could get it to upload).
I'm now running Jackos rom and it does show the roaming triangle.
Hopefully somebody can find where the settings are located and hopefully it's contained in the registry.
Have the same problem on the Stocks ROGERS 1.5 Rom. Sales associate said you should not get roaming charges since you aren't actually roaming and if you do, just contact your phone provider.
rogers htc dream unlocked now on roaming?
i also have a htc dream from rogers unlocked not rooted and my bell sims card works like my phone calls and my text but i can't get my data to work and when i click on the apns theres not thing and i am not able to adjust anything in there, if anyone can help it would be great, so pretty much the bell sims card works but i cant use my data and it says im roaming
hol17 said:
Have the same problem on the Stocks ROGERS 1.5 Rom. Sales associate said you should not get roaming charges since you aren't actually roaming and if you do, just contact your phone provider.
Click to expand...
Click to collapse
i also have a htc dream from rogers unlocked not rooted and my bell sims card works like my phone calls and my text but i can't get my data to work and when i click on the apns theres not thing and i am not able to adjust anything in there, if anyone can help it would be great, so pretty much the bell sims card works but i cant use my data and it says im roaming
Click to expand...
Click to collapse
If you aren't outside of Canada and you get the roaming symbol; they can not charge you roaming fees.
Roger and Telus PLMN Compared
I'm not sure if this will help,
I have attached a picture of the PLMN from a Rogers sim and a Telus sim
Maybe someone knows how to adjust the information on these lists.
Dave778 said:
A fido tech rep told me that most unlocked phones indicate roaming because of the phones hardware programing. The hard programing of the phones checks the sim and sees that it is using a diff sim card and starts indicating roaming when in fact you are not. A rogers salesman also told me the same thing. He said as long as your carrier is displayed on your phone homescreen then you are good.
Click to expand...
Click to collapse
The phone companies in Canada must be less uptight about unlocked/rooted phones
If you asked those questions to a t-mobile or at&t rep, they would straight up refuse to talk to you
American cell phone companies are still stuck in the "Ma Bell" mentality, where everything that touches their network must be under their control
anyone figure out a fix? I'm having these roaming issues as well on the bell network with unlocked at&t phone.
I have Same probleme Here, Bell on a AT&T Tilt 2 phone, Always get Roaming message.
any registry edit or mod available to make it work without these message ?
thks
BiOs2k said:
I have Same probleme Here, Bell on a AT&T Tilt 2 phone, Always get Roaming message.
any registry edit or mod available to make it work without these message ?
thks
Click to expand...
Click to collapse
I searched around to a fairly moderate extent and I have found many people with the same problem, yet I can't find any resolution to this issue.
I'm not even sure where the issue lays. Is it with the hardware/firmware? SIM card? Windows Mobile? Is it the rilphone.dll? or maybe some registry entry. Maybe it's on the Bell network side?
Someone told me they put a Rogers SIM into their Fuze and it didn't show up as roaming, yet when they put a Bell SIM in, it's back to roaming. So what's the difference between Bell and Rogers?
Here's a question for anyone who has this problem, when you boot android does it still show as roaming?

myTouch 3g LE on CBW cant connect to internet at all (please shed some insight)

My brother just bought a myTouch 3g LE and unlocked it for use on Cincinnati Bell. CinBell and T-Mobile both use the same 1700/2100 3g frequencies so he should get 3g just fine (for the record my Nexus One gets incredible 3g in the area on CinBell).
He can't connect to any network at all now. At first his internet was very spuratic, no 3g and only occasionally edge. We tried every possible APN settings we can find for CinBell android phones (Hero, N1, Blaze, and other random combinations with no luck). Next I did a hard reset and tried the combo's again to no avail.
Does anyone have any insight why he cant connect to the network? He even just got a new sim card to ensure he had a 3g one..
Is there a radio update out he might need? Should I try a T-mobile sim to ensure the radio is opporating properly?
My next step is to root/unlock the bl and flash it.Then try.But at this point I'm feeling pretty pessimistic...
im not familiar with that fone right now but do you think it needs some net isp specific configs,
Sent from my CBW Blaze using XDA App
Yes I've tried quite a few different combos with no luck
Sent from my Nexus One using XDA App
No one has any idea why this unlocked phone wont connect to 2g/3g with the same settings that work on my Nexus?
The cs rep simply said "some unlocked phones just have this issue," and i just find that very hard to believe.

HTC HD2 won't work with TELUS, Canada

Hi Guys,
I have an unlocked TMo HTS HD2. I have used it in Asia and UK without a problem. But when I came back to Canada, I got problems. I am using TELUS here and Telus doesn't seems to support HTC HD2. I checked this site and used their online tool to check the device compatibility. It shows the HTC HD2 is not compatible with TELUS.
I have tried to find information online about what is the problem and possible solutions. But, I have not came across anything that tells what is the issue. Probably there is something to do with HSPA (telus doesnt support HSPA or so).
So, I thought this will be the best place to know what can be the problem and most importantly possible solutions. I really like HD2 and would really want to use it in Canada.
Thanks.
What about it doesn't work? ALL GSM functions, IE calling, SMS, MMS...or is it just data?
Everything. It won't even catch the signal. I can see the signal bars trying to scan the network but then it stops with an exclamation mark.
leon_nerd said:
Everything. It won't even catch the signal. I can see the signal bars trying to scan the network but then it stops with an exclamation mark.
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Click to collapse
i think Telus has the Bands that are present in the Telstra HD2, thats why your not able to use it, were you able to use it before tho?
No. I have never used my HD2 with Telus before. Is there anything like a firmware update or a software based solution to this problem?
leon_nerd said:
No. I have never used my HD2 with Telus before. Is there anything like a firmware update or a software based solution to this problem?
Click to expand...
Click to collapse
I think you need the Telstra HD2, Tmobile ownt function your phone as it doesnt have the required bands by Telus, try a Rodger or a Fido Sim on your phone and see if you get a connection
My guess is that you've got your HD2 setup to ONLY connect to HSPA - and since they don't support that (edge only) it won't connect. Try changing the setting & see if that works...

Bad radio or hardware issue?

Hi all, I have a mytouch 4g that has the virtuous unity rom. Everything works except allowing me to make calls via cell tower. I get the error message that my sim does not allow a connection to this network.
It's not the sim card. I've tried three different ones that works on my htc sensation fine. oddly if I put in an ATT sim, it works. Wth? This makes me think it's a radio software? So I reverted back to stock and the problem still exists. No Tmobile. I've reflashed the radio too but it's still not working.
Any suggestions? Thanks!
So you tested it with the newest stock radio? It could be hardware issue as if it was bad radio flash you have 90% chance it would be hard-brick. I suggest you contact TMo and try to get replacement if they don't allow due to 3rd party vendor purchase then RMA to HTC under warranty.
Sent from my HTC Glacier
No, not the latest. I used the stock one that's for tmous 2.2.1. Is the radio dependent on the rom? If not, I'll give it a try.
It was purchased off craigslist. Htc warrants non original owners?
Its ur sim card nothing to do with radio
Sent From My Rooted Sidekick 4g XDA Premium App
Datlilboricua said:
Its ur sim card nothing to do with radio
Sent From My Rooted Sidekick 4g XDA Premium App
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Not sim. I've tried three different ones. Even took it to a Tmobile store where a friend of mine works and he tried his sims there. Same problem. He then unlocked the phone and when he inserted an ATT one, it works off ATT but not Tmobile.
Press *#*#4636#*#* and the phone information run a ping test and give me a feed back also check more down it says radio off and wcdma perferred or something like that
Sent From My Rooted Sidekick 4g XDA Premium App
with wifi on, not sure if that matters.
current network:
ping ipaddr: pass
ping hostname(default google): pass
http client test: pass
signal strength: -99 dbm 7 asu
location: LAC=unknown, CID=unknown
neighboring cid: unknown
roaming: not roaming
gsm service: emergency calls only
gprs service: disconnected
network type: unknown
message waiting: false
call redirect: 0
call status: idle
radio resets: 0
data attempts:0
data successes: 0
gsm disconnects:====DATA====
ppp sent: 0
ppp received: 0
number of ppp reset since boot: 0
set preferred network type: WCDMA preferred
ciphering ON
turn radio off
smsc: blank
toogle dns check 0.0.0.0 not allowed
Its ur phone locating lac is erroring out u should go back to stock and replace
But tmobile don't carry mytouch 4gs they replacing with g2x's
Sent From My Rooted Sidekick 4g XDA Premium App
would they replace it if I bought it from someone else?
Side note, home come when an ATT sim card is inserted, it can make calls out?
If u have insurance on ur contract yes just don't say u bought it from someone just call costumer care and say ur phone ain't working and u went to corporate office and they trouble shot it and did a master reset and they said u have to get a equipment replacement
Sent From My Rooted Sidekick 4g XDA Premium App
Idk it might be its not getting tmobiles frequency and att is
Sent From My Rooted Sidekick 4g XDA Premium App
Thanks for the tip!
I've now tried all of the gb radios and none of them works.
noodlenoggan said:
Thanks for the tip!
I've now tried all of the gb radios and none of them works.
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Click to collapse
1.Phone could be SIM locked
2.Issue with HW
I would make sure the phone is unlocked first, but don't use that gfree unlock(CID), others have had SIM issues after using that method for unlocking. If you used gfree CID, undo that and use an actual unlock code. And if that still doesn't fix anything, try and get a replacement thru Tmobile or hTc support. Either one should work if phone is still under warranty.

HTC Bolt Mobile Data Issue

Hi, ive been an owner of an HTC bolt for a while now. Recently my island was hit by the famous Hurricane Irma (Puerto Rico, USA Territory). And ever since my mobile data dont want to connect.
Details about the phone:
HTC Bolt (Sprint but is GSM Unlocked and have been using it with H2O Company. Uses At&t Towers.)
Phone is bootloader unlocked and rooted but stock software i believe is the march latest update (1.32.651.6)
The phone was working excellent by that day. Now i had to switch to my spare phone HTC M9 and mobile data works fine here.
Rightnow i still dont have electricity at home. But i was wondering if any of you guys have had this same issue or maybe know why this could happen.
Ive tried resetting network settings, checked the APN multiple times. And no luck. Also i have access to the DM menu where i can see all the network settings when i input the MSL code. But everything seems fine.
Maybe running an RUU on it can fix the problem...
Thanks in advance for any help you can give me.
Willing to bet it is more of a provider issue. Give it some time for them to fix the infrastructure
Sent from my 2PYB2 using Tapatalk
jayshocka said:
Willing to bet it is more of a provider issue. Give it some time for them to fix the infrastructure
Sent from my 2PYB2 using Tapatalk
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Click to collapse
Thanks for the reply!
I thought of that but in that case my M9 shouldn't be working either. And its perfectly working. Don't know maybe is the LTE band it is trying to connect is bad or something. Because on the M9(Factory Unlocked version) the data is working but not as fast as always.
Oh yeah not really sure sorry.
Sent from my 2PYB2 using Tapatalk
this thing is driving me crazy. I'm on the line to Customer Service to see if they can find the issue.
But me guessing, does the radio image installed on the phone has anything to do with that? Does that file or part of the ROM could get scrambled and cause this kind of issue??
Update:
They have reset the account, but they say is the phone thats giving me the issue, since the SIM card shows successful connection on another phone. I will try to run the RUU on this and see...
Ok so apparently the issue is on the network. I just tried my sister SIM card from T-Mobile and the phone connects perfectly to internet. So apparently the issue is maybe a technical problem on the network band the carrier is transmitting. And that band isn't available or not accepted on the Bolt cuz is a Sprint variant.
Don't know 100% sure but apparently that's the issue. I checked on the M9 what bands are the phone connecting and according to LTE Discovery App the phone is connecting to band 17 or band 4.
BTW
Is there a way to edit network bands on a phone?

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