Database Users

[Q] How to Unlock my mobile network settings?

Hi,
I recently bought a HTC Surround (AT&T), im from Costa Rica and we don't have AT&T as a carrier.
The phone works great with the GSM band but when i try to look for any 3G settings (using 850Mhz band) i cant find any options.
According to an article in the internet (i cant post any links yet) there should be an option called "Mobile Network" where i can turn the 3G on or off, so im guessing AT&T disabled the option (phone doesn't have any 3G sign on the sign bar at the top just the antenna bars).
Is there any way to Unlock the 3G options on this phone?
Thank you.

Help me out a little with your request. The place to turn on/off data is under cellular in the settings page. However, I haven't found "Mobile Network" on mine. However, I did download HTC Connection Setup which allowed the phone to search for various carriers and automatically set up the connections. That program is in Marketplace under HTC apps.
BTW, is your phone SIM unlocked?

Thank you for answering ...Sure ill help you with what ever you need... we might be able to narrow down my problem... lets see
1. HTC connection: yea i tried the app actually i have it installed on my phone but its giving me a message saying "Carrier doesnt exist in the data base" that i need to go a create apn (isnt that for phone internet). so i cant use the application, our carrier here is called I.C.E.
2.The band Costa Rica is using for 3G is the 850MHz. my SIM card is linked to a GSM account (1900 MHz) but the phone should be able to recognize the band tho, isnt that right?
3.how do i know if my phone is sim lock? i just placed my GSM SIM card inside and its working, do i need to try with a different card?
4. how does 3G works in this phone? is it configurable?

I'm pretty sure you are going to have to configure an APN for it to use 3G. As for band switching, I don't think it's possible with the current interface (at least on AT&T). Perhaps there are some registry entries that we will soon be able to access when some of the WP7 developers make headway, but right now, there is nothing of which I'm aware. If you can call on your network, the phone is already SIM unlocked, so no need to worry there.

I found some nice info about switching 3G or 2G etc... which it helps but i think it didnt work on mine.
Does anyone know how to set the HD7 (or surround) to 3G only?
Dialer> ##3282# Call > Settings > 3G only.
But in my case what i saw after that was that all the antenna bars were gone and then it went into no service then picked up signal again. After checking the settings after dialing again it was set to automatic again and if a switch it to 3G only it does the same thing again.
So im guessing it didnt work, ill try to talk to my carrier and see if we can create an APN to handle the 3G.
Is there a chance that the 3G feature is locked by AT&T?
Thanks for all your help if by any chance you find out something else i will appreciate the help.

Well apparently i got it fixed my phone seems to be working on 3G right now, i have the 3G sign on the top bar.
To make the story short.
I just configured my internet, added the roaming options and then tried again ##3282# only 3G and it worked now its showing 3G next to the antenna bars.
Thank you jwzg for your help.

Can not change the language
I have HTC surround. I did unlock AT&T phone. Now it works in Russia.But when I'm changing the languge from enlish to russian: can not save it. Please help me

need help
i have a question and i need some help pease... i have and htc surround which was unlocked from att and now am using t-mobile with the phone however i do not get 3g working what can i do is there any fix for it?

xSebast said:
Hi,
I recently bought a HTC Surround (AT&T), im from Costa Rica and we don't have AT&T as a carrier.
The phone works great with the GSM band but when i try to look for any 3G settings (using 850Mhz band) i cant find any options.
According to an article in the internet (i cant post any links yet) there should be an option called "Mobile Network" where i can turn the 3G on or off, so im guessing AT&T disabled the option (phone doesn't have any 3G sign on the sign bar at the top just the antenna bars).
Is there any way to Unlock the 3G options on this phone?
Thank you.
Click to expand...
Click to collapse
Hi. If your SIM card is old (GSM) add APN: icecelular. If your SIM card is new (Kolbi), add APN: kolbi3g

jaraya13 said:
Hi. If your SIM card is old (GSM) add APN: icecelular. If your SIM card is new (Kolbi), add APN: kolbi3g
Click to expand...
Click to collapse
hi guys
I living to Costa Rica and i have a HTC Surround 3G network not problem apn icecelular
so MMS messenger is a problem, how is the configuration ??????

geovannyguadamuz said:
hi guys
I living to Costa Rica and i have a HTC Surround 3G network not problem apn icecelular
so MMS messenger is a problem, how is the configuration ??????
Click to expand...
Click to collapse
that's easy no problem just download this app from the market is called connection setup I believe then just open it and follow instructions however I have a big question am in US and have an htc surround unlocked from att but I have t mobile and I cannot get 3g is there any setup configuration that has to be make in order for the 3g to work

Thanks!!!
Download connection setup to marketplace and running
the carrier doesn´t exist in database
In Costa Rica mms don´t support ???

geovannyguadamuz said:
Thanks!!!
Download connection setup to marketplace and running
the carrier doesn´t exist in database
In Costa Rica mms don´t support ???
Click to expand...
Click to collapse
I guess not, we have to wait for a custom rom the adresses this issue.

map1989 said:
that's easy no problem just download this app from the market is called connection setup I believe then just open it and follow instructions however I have a big question am in US and have an htc surround unlocked from att but I have t mobile and I cannot get 3g is there any setup configuration that has to be make in order for the 3g to work
Click to expand...
Click to collapse
No, you don't have to do any special configuration. I think TMobile bands for 3G are different frequencies from ATT, so sadly, I think you are never going to be able to have 3G connection on your Surround while you are on TMobile. Regards.

mmmmm tmobile used different bands
mmmmm input to sim movistar in htc, rigth in connection setup appers to configuracion of Nicaragua chance to Costa Rica and input sim ice connection don´t exist in data base... :-( mms is not working!!!

Three UK SIM doesn't work with no data.

I've got my contract EE SIM and Three UK Pay as You GO. When I tried to connect EE with data it connected properly but my Three UK SIM lost the connection. When I switch to data from Three UK it connects and EE still works. Three UK is 3G,4G SIM only mode and it doesn't support GSM. I tried to swap the SIM slots but it doesn't change the situation. Anyone knows the solution?

I'm using this phone on Three UK. The data didn't work at first but that was because mobile data is disabled by default on the stock rom for some reason.
Does the Three sim work for you on it's own? Bizarrely, calls and texts still worked even though the internet didn't even though Three is, as you say, a VOIP only network.

Seems that the update in some way has problem on the radio especially for the 4G : on 4G provider only 3G network is used

did you checked in the engineer mode if some bands haven't been disabled since the last update ? I'm in France using the Orange network and it work on 3g and 4g. Also on the update you have to search for the mobile network once more and select the correct one. I have to say it didn't worked at first for me, switching airplane mode again and again did the trick !

leomon32 said:
did you checked in the engineer mode if some bands haven't been disabled since the last update ? I'm in France using the Orange network and it work on 3g and 4g. Also on the update you have to search for the mobile network once more and select the correct one. I have to say it didn't worked at first for me, switching airplane mode again and again did the trick !
Click to expand...
Click to collapse
Thanks, nn the engineer mode I have not see any problems, but in the build.prop in the system I have not saw any think related to the LTE network.
No chance I have tried to connect to Orange FR network setting only LTE as band , but the phone could not even to connect to voice network. Other user on the web claim that this happens after the upgrade to the new stock rom

Won't work with a non-US SIM?

I've been banging my head against the wall all day with this one and am pretty close to throwing my 6P out the window of the place I'm staying right now
My 6P is normally on the Verizon network, but I'm traveling to Italy for a bit so I grabbed a local carrier's SIM (TIM, doubt it matters), and my 6P refuses to connect to their mobile network - as in, no signal ever, emergency calls only. I put the same SIM in my friend's iPhone here and it works fine. I also put it in an LG G4 here and it was at least able to pick up a signal.
Here's what I've tried so far, unsuccessfully of course:
* "Reset network settings"
* Selected TIM in the network provider screen. I get the extremely unhelpful "No Service: Selected Network (I TIM) is unavailable" and "try again later"
* Selected Automatic in the network provider screen.
* Switched between 2G/3G/4G for the above two steps.
* Changing network bands in *#*#4636#*#*
* After doing more research on the bands problem, resetting them via the advice I found here and more importantly, here - I changed it back to Automatic band selection. Tried Euro too for fun, and it didn't work either.
* Factory reset on the latest 6.0.1 build
* Flashed N preview, did a factory reset
I know for a fact that the 6P supports the correct bands via this Wikipedia page. I took a quick look at the logcat and didn't see anything interesting, if anyone thinks it would be useful I can post it here.
What gives? Is my device hosed? Anyone have other ideas on what to try? Thanks!

kd- said:
I've been banging my head against the wall all day with this one and am pretty close to throwing my 6P out the window of the place I'm staying right now
My 6P is normally on the Verizon network, but I'm traveling to Italy for a bit so I grabbed a local carrier's SIM (TIM, doubt it matters), and my 6P refuses to connect to their mobile network - as in, no signal ever, emergency calls only. I put the same SIM in my friend's iPhone here and it works fine. I also put it in an LG G4 here and it was at least able to pick up a signal.
Here's what I've tried so far, unsuccessfully of course:
* "Reset network settings"
* Selected TIM in the network provider screen. I get the extremely unhelpful "No Service: Selected Network (I TIM) is unavailable" and "try again later"
* Selected Automatic in the network provider screen.
* Switched between 2G/3G/4G for the above two steps.
* Changing network bands in *#*#4636#*#*
* After doing more research on the bands problem, resetting them via the advice I found here and more importantly, here - I changed it back to Automatic band selection. Tried Euro too for fun, and it didn't work either.
* Factory reset on the latest 6.0.1 build
* Flashed N preview, did a factory reset
I know for a fact that the 6P supports the correct bands via this Wikipedia page. I took a quick look at the logcat and didn't see anything interesting, if anyone thinks it would be useful I can post it here.
What gives? Is my device hosed? Anyone have other ideas on what to try? Thanks!
Click to expand...
Click to collapse
I’m not sure about Italy but our n6p will work with non-US Sim. I just got back from China and Hong Kong and was using my USA Project Fi and two local carriers (3 and China Mobile) without any problems. Your issues may be carrier base. I did have some drop calls with the carrier 3 in Hong Kong and the set up with 3 was not as easy as China Mobile. I had the carrier 3 Sim installed at the carrier 3 store. But China Mobile installed just fine all by itself automatically as soon as I installed the Sim. You may want to have the local carrier TIM, take a look, I bet its something in the settings with the local carrier TIM.
Good Luck.

boxcar8028 said:
I’m not sure about Italy but our n6p will work with non-US Sim. I just got back from China and Hong Kong and was using my USA Project Fi and two local carriers (3 and China Mobile) without any problems. Your issues may be carrier base. I did have some drop calls with the carrier 3 in Hong Kong and the set up with 3 was not as easy as China Mobile. I had the carrier 3 Sim installed at the carrier 3 store. But China Mobile installed just fine all by itself automatically as soon as I installed the Sim. You may want to have the local carrier TIM, take a look, I bet its something in the settings with the local carrier TIM.
Good Luck.
Click to expand...
Click to collapse
Yeah, I thought in general that it should work. Unfortunately I don't think I'm going to be able to go into a TIM shop since we're not near one and I doubt I could communicate the issue effectively given my broken Italian... thanks though!

Well, to anyone unlucky enough to have this same problem... I've made some progress! Of the two TIM SIMs we have, one seems to be enabled for 4G access while the other will only connect to 3G - not sure if this is by design or not. I put the 4G-enabled SIM in my N6P, wiped, and rebooted to Chroma and everything worked before even selecting "Automatic".
I tried putting the 3G-only SIM back in - back to no signal. I wonder if the band selection thing isn't working properly? My impression is that it's a 3G only setting and doesn't affect LTE connections, but I could be wrong. I am fairly sure the N6P supports the 2G/3G bands TIM uses around here...
If anyone has a clue on how to make a guide like this: http://forum.xda-developers.com/one-e8/help/signal-selecting-usa-band-4636-menu-t3091439 for the N6P that'd be awesome... not sure I will have time to experiment myself while in the area where it will matter.

Verified that data is still working after restoring my backup too. Calling / SMS seems completely busted though - calls get stuck at "dialing" and SMS messages just seem to disappear.
Any more advice would be appreciated
Sent from my Nexus 6P using XDA-Developers mobile app

WAS-AL00 originally on China Mobile – gets only 2G speeds in the USA – what gives?

After unlocking the phone everything works just fine, including all the Google services (hooray!), but it gets only 2G speeds on T-Mobile LTE network in the USA (4G setting in the phone is enabled).
The APN is T-Mobile US LTE. However, if I go to Settings > Mobile Data > click cog on top right > Data plan settings it shows the phone carrier still as China Mobile in Beijing.
Does this mean that the SIM is locked to China Mobile only? If yes, why is the phone working, although at 2G speeds only?
Is there a way to make sure the phone is SIM locked? I’d like to avoid spending $30+ for an unlock code to find out it’s still not working.

If you have the correct APN settings I think it's the basebands using different frequencies that are not compatible with the p10 lite.

How can i force the OnePlus 6T to an specific network?

Okay, so I am on Verizon and I purchased the OnePlus 6T straight from OnePlus website. I have the 8gb ram and 256gb storage model. I have unlocked the bootloader but haven't installed a custom recovery or rooted yet. Just wanted to unlocked bootloader since it requires a wipe of device storage in case for the future.
Anyways, the phone works amassing, battery life is great, I had a pixel XL before this, screen is fantastic and is plenty fast but I have ran into an issue. The phone was activated on Verizon using Sim 1. Signal is not an issue, always have LTE from Verizon and way better signal than pixel XL ever had.
My issue is I live in a border town with Mexico and I just noticed that when I am close to the border, like within a mile the phone switches to Movistar cell provider. Movistar is a Mexican cell phone provider. Is not that I lost signal because my pixel XL had signal all over there before and the OnePlus 6T is stronger, is just that apparently the Movistar provider has a stronger signal on that area and the phone is choosing to pick up the stronger signal, even if it means going off and switching to roaming.
It doesn't cost me any $$ and speed is wicked fast while roaming but Verizon will only allow 0.5gb of roaming per day which limits the usability of the phone. Anyways, thanks for reading my long post, just wanted to give some context to the question and hopefully find an answer. Like i said, I did search and didn't find anything. If I have to root to install an add-on or an app that lets me pick my signal please advise. Also I know that I still have a strong Verizon signal because I used ltediscovery app to check and it shows the signal strength of whatever many signal phone is picking up.
Thanks in advance for reading and for answers.

One option might be Network Signal Guru in the Play Store (requires root). It's the only app I've found that allows the user to lock the phone to a specific band - which might help with your situation.

phil737 said:
One option might be Network Signal Guru in the Play Store (requires root). It's the only app I've found that allows the user to lock the phone to a specific band - which might help with your situation.
Click to expand...
Click to collapse
Outstanding sir. Thanks for the information. I guess time to root then for me. Been waiting for a stable recovery for OnePlus 6T but I supposed no harm so far using current version of twrp, as far as I have read.

have you tried going to settings, internet, sim, sim1, network provider, disabling the automatic option and selecting your preferred provider manually? this way you will stick to that selection

OnkeIM said:
have you tried going to settings, internet, sim, sim1, network provider, disabling the automatic option and selecting your preferred provider manually? this way you will stick to that selection
Click to expand...
Click to collapse
Either I do not have that option or I couldn't follow the steps.
When I go to settings, wifi & internet, Sim, sim1 then I see what is on the attached screenshot.

it seems you are missing some options
it should look like this: network operator
try to search for operator or network on the main options screen at the search bar on top.
if still no luck than maybe there is something wrong with your sim card or apn settings. you should try to contact OnePlus support than.

OnkeIM said:
it seems you are missing some options
it should look like this: network operator
try to search for operator or network on the main options screen at the search bar on top.
if still no luck than maybe there is something wrong with your sim card or apn settings. you should try to contact OnePlus support than.
Click to expand...
Click to collapse
Mine does have network operator anywhere.
I look through all the settings and nowhere to be found. I am on Verizon network and only sim1 has a card in it.
Sim2 is empty.
I can get to the special settings through *#*#4636#*#* and even there changing different LTE settings keeps reconnecting to roaming network since the tower is like a stone through away.
Any other options would be greatly appreciated. Also the app that was suggested in 2nd post, rooted phone to try it and that option if it works is behind pay part and that app fee is $50/m. A bit steep for me so looking for options still.
Thanks in advance

Couldn't you just disable roaming?

AsuraDas said:
Couldn't you just disable roaming?
Click to expand...
Click to collapse
I could but I only have an option for disabling data roaming, not roaming all together. I tried it in the past and all it did was kept me connected to the roaming network and turned off the data off of the roaming network connection. Meaning I had zero data connectivity.
I wonder if putting a Sim in sim2 slot would open up more settings ?
If anyone is using 6T on Verizon could you please go to wifi & network, sim1 and see if you get any more options than what I posted on previous ss about 3 post ago.
Thanks in advance

rfvreynoso said:
Mine does have network operator anywhere.
I look through all the settings and nowhere to be found. I am on Verizon network and only sim1 has a card in it.
Sim2 is empty.
I can get to the special settings through *#*#4636#*#* and even there changing different LTE settings keeps reconnecting to roaming network since the tower is like a stone through away.
Any other options would be greatly appreciated. Also the app that was suggested in 2nd post, rooted phone to try it and that option if it works is behind pay part and that app fee is $50/m. A bit steep for me so looking for options still.
Thanks in advance
Click to expand...
Click to collapse
do you have a carrier locked device? that might prevent you from doing changes to your sim.

OnkeIM said:
do you have a carrier locked device? that might prevent you from doing changes to your sim.
Click to expand...
Click to collapse
I don't believe this is carrier locked since I bought straight from OnePlus website. Hell, I was even charge a currency conversion fee by my credit card cause the purchased was in foreign currency.

rfvreynoso said:
I don't believe this is carrier locked since I bought straight from OnePlus website. Hell, I was even charge a currency conversion fee by my credit card cause the purchased was in foreign currency.
Click to expand...
Click to collapse
you should try another sim (family or friends) and check if the missing option appears. maybe try your sim in another phone too.
lastly you could try a full factory reset (deletes all data)
at the end if it still does not work you really should call OnePlus for help.
also I found this app here: https://play.google.com/store/apps/details?id=com.pomo.android.networkoperators
open it and select "available networks"
that should open the missing menu to toggle operator selection...