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Question about 3G setting. Please Help!

I am in UK and using THREE at the moment.
However, i found out the signal in Verizon ROM is very weak (about 2 bars less
so, i have to flash the Chinese XT883 CDMA ROM, i am able to can the signal and
It works perfect
But the new problem came, i cant save my APN.
Even i used MarketEnabler, i can save APN but there is still no 3G network.
So, can anyone help me to work it out please?
Thank you very much !!!

hi, where do you find the xt883 rom ? in english ? do you try to force the phone, in menu mobile network setting to stay in gsm/umts and the same thing in menu *#*#4636#*#* phone information ?
I'm from france and i've the same problem about the 3g signal is very less (1 or 2 bar, before with my milestone 1 i've about 4/5 bar).

Once you flash the rom, its chinese.
But you can change to English.
Here is the link for the rom " 115.com/file/clf4iza2# "
After you flsh it, you need to type *#*#2468#*#*
Then reboot you unlock the gsm\utms.
And i tried to force the network, still no 3G network

facrory reset and see
or
1. download "apn manager" from android market
2. open "apn manager" go to "insert apn"option
3. fill in your network apn information
4. klick the save button below
5. thank god when it works
or
the link for the chinese rom is dead, can you upload it ?

I tried the way you posted...
But sam problem..

the xt862 indication for the 3g signal is just wrong, 2bars means nearly full reception(download any signal strength app, it'll show you ).
You should have had a look at settings->about phone->status, there you can the see your signal strength in db, the values should be the same before/after your flash.
Do you know if the phone behaves better on 3g with chinese rom in case of switching to 2g if the 3g reception is low and power consumption in 3g?

DroidXY said:
the xt862 indication for the 3g signal is just wrong, 2bars means nearly full reception(download any signal strength app, it'll show you ).
You should have had a look at settings->about phone->status, there you can the see your signal strength in db, the values should be the same before/after your flash.
Do you know if the phone behaves better on 3g with chinese rom in case of switching to 2g if the 3g reception is low and power consumption in 3g?
Click to expand...
Click to collapse
But when i was using Verion ROM, once I lost my signal, it would not find it back.
Have to reboot the phone to search the signal.
And i can send sms sometime even with signal..
Now..everthing works fine in chinese ROM...except the 3G connection problem
Need help

I'm no idea about the issue. My 3g is unanstable, but come every time when lost the signal, switch 2g 3g.....and I download a strengh app that say the same thing about the level signal is very poor.
If you re upload the xt862 chinese rom, I can install it and see if there any issue.....

Try to put in "airplane on" and after 5 seconds "airplane off"
Inviato dal mio DROID3 usando Tapatalk

nikeusfr said:
I'm no idea about the issue. My 3g is unanstable, but come every time when lost the signal, switch 2g 3g.....and I download a strengh app that say the same thing about the level signal is very poor.
If you re upload the xt862 chinese rom, I can install it and see if there any issue.....
Click to expand...
Click to collapse
Try this
"htt p://w ww.gok uai.com/f/8SYAS27j324G38YT"

8339923 said:
And i tried to force the network, still no 3G network
Click to expand...
Click to collapse
Works for me, and look a lot of better (at least this is the initial sensation), the hot spot works too, but that rom has no google apps, so I have to manage to get them working.
The first attempt was unsuccessful (market FC) but maybe i did something wrong.

Update.
I managed to get the market working (the standard gapps werent working, i took the files from the bell XT860)
The rom is really nice:
Better dialer
Stk
Better sensitivity (i don't know if only visual or effective)
3g and H icons working correctly.
USB tethering works (it doesn't for me with verizon fw)
Most of the bloatware is uninstallable
Profile manager, call filter and other application preinstalled.
BTW looks like CDMA can't be disabled from the wireless menu

The link for download the rom doesn't work :-(

nikeusfr said:
The link for download the rom doesn't work :-(
Click to expand...
Click to collapse
http://www.multiupload.com/1BEXM5Q7RZ

You might be experiences better signal because when you don't have 3G, it reverts back to 2G.
If I disable 3G on my samsung jet i get more bars but no internet

DoubleYouPee said:
You might be experiences better signal because when you don't have 3G, it reverts back to 2G.
If I disable 3G on my samsung jet i get more bars but no internet
Click to expand...
Click to collapse
It's a bit hard to get 4+ Mbps in download in 2g...
Jokes aside, I use mobile phones as my only internet connection since 1998, in that timeframe i got some expertise about the matter.

Happy to see you can get such nice result..
i tried my friend's sim card last night which it is orange..
suprise me..the 3G network can be connnected automatically...
i think might be the problem of THREE?...
whatever, I found out in my phone system information,
It cant read my phone number...
is there any way to fix it?...

The Solutor said:
It's a bit hard to get 4+ Mbps in download in 2g...
Jokes aside, I use mobile phones as my only internet connection since 1998, in that timeframe i got some expertise about the matter.
Click to expand...
Click to collapse
I was talking to the OP

DoubleYouPee said:
I was talking to the OP
Click to expand...
Click to collapse
Ok, sorry for the misunderstanding.
---------- Post added at 01:38 PM ---------- Previous post was at 01:35 PM ----------
8339923 said:
Happy to see you can get such nice result..
i tried my friend's sim card last night which it is orange..
suprise me..the 3G network can be connnected automatically...
i think might be the problem of THREE?...
whatever, I found out in my phone system information,
It cant read my phone number...
is there any way to fix it?...
Click to expand...
Click to collapse
My three italy sim works w/o any problem, but I remember that the N900 had problems with the three sims from UK and sweden, because the odd behavior of the stk, maybe you are facing a similar problem.

The Solutor said:
Ok, sorry for the misunderstanding.
---------- Post added at 01:38 PM ---------- Previous post was at 01:35 PM ----------
My three italy sim works w/o any problem, but I remember that the N900 had problems with the three sims from UK and sweden, because the odd behavior of the stk, maybe you are facing a similar problem.
Click to expand...
Click to collapse
you mean there is no way to fix it?..
im thinking about maybe this is why i cant get access 3G

[Q] Droid 3, no 3g after 2.3.4 update (maybe)

Yep, another noob with a busted phone. Verizon Droid 3, about 5 months old.
I've just noticed that I have no 3G. Not a 3G problem, I've confirmed with another phone that I'm in a covered area. Normally I'm under one Wi-Fi net or another, so I rarely use it. Noticed it yesterday when I needed it.
Allowed the 2.3.4 upgrade back in May. No problems, just had to reroot the phone. Pretty sure this started after the upgrade, but not 100% sure.
I've tried Googling, saw the *228, tried it, nothing. Found threads about task killers causing issues, uninstalled Advanced Task Killer, nothing. Pulled the battery and rebooted, nothing. Saw some thread on APN settings, but those are not available to me with Netwrok Mode set to Global. I can set it to CDMA, still has APN setting greyed out.
Not finding anything else much to go on, could use some help.

One thing you could try is hitting *#*#4636#*#* then Phone Information and changing the network to EVDO only. That would force it to connect to 3g. Then if that doesn't work try manually forcing a PRL using ##Program. You could always call Verizon.
Sent from my XT883 using xda app-developers app

Are you on any rom? Stock?
If your on stock, I would go to verizon and ask for a replacement or see if they can give you a replacement or fix it.
If your rooted/custom rom I would try re-downloading whatever rom your using and reflash it. And wipe caches.

I've actually had a few issues with the 3G on my own D3. These steps generally work for me.
Navigate to your APN settings. Settings>Wireless & Networks>Mobile Networks
Press Menu (An option should pop up that says "Reset APN" or "Reset Values")
Press this and wait a few seconds.
Reboot, and you SHOULD be up and running.
If this doesn't work you can edit the greyed out APNs manually (NOT advised) with a trick I can show you. Hope I was able to help!
-End All Fear, Uncertainty, and Doubt

I don't think you can even access the apn menu from cdma mode.
Sent from my xt862 using xda app-developers app

Thanks for the suggestions so far. Unfortunately, none of them have worked. EndAllFUD, even switching over to GSM so I can get to the AFN settings, there is no reset that I could find.
I've went back and tried unfreezing all the oddball authenticators under the assumption that maybe one of then was IDing me to the 3G network. That hasn't worked either. Unless I come up with another idea, I guess I'm going to have to try Verizon and see if they can/will help.

Well, we have a resolution. After everything up to and including a factory reset, it seems that the 3G radio in my Droid has died. Verizon is sending me another; I'm springing for the overnight shipping.
I had forgotten how much effort had went into customizing this thing. The stock phone is just...painful.
I appreciate all the help that was offered.

Sorry to hear about the 3g radio in your D3, but glad to hear you resolved your issue! Also, I was going to amend my solution. I was basing my answer of memory due to the fact that I am currently running Hashcode's CM9. (It's amazing by the way) The proper instructions were as follows: (Amended instructions are in bold.)
Navigate to your APN settings. Settings>Wireless & Networks>Mobile Networks
Set network mode to GSM
Change mode back to Global but quickly start tapping the "Access Point Names" menu until it lets you in.
-(You are now in the locked Global Settings Menu)
Press Menu (An option should pop up that says "Reset to default")
Press this and wait a few seconds.
Reboot, and you SHOULD be up and running.
---------- Post added at 07:04 PM ---------- Previous post was at 06:54 PM ----------
MrObvious said:
I don't think you can even access the apn menu from cdma mode.
Click to expand...
Click to collapse
Yeah I just had to throw in a trick I figured out one day when I was screwing around with my phone. My apologies for not remembering to put it in earlier.

Does anyone know how to tweak Droid 3 to make it able to call, message and 3G, but not 1x data?

It isn't possible to make calls or texts using CDMA service locked into EVDO only. If you use Google Voice and a SIP program it would work.
Sent from my xt862 using xda app-developers app

Phone repaired, now can't connect to 3g

Hey guys,
So i broke my Xperia Z (C6603) screen 2 weeks ago and just got it back from my insurance company a few days ago.
They somehow unlocked my unlockable bootloader and also sim unlocked the phone. I was not disappointed with this
But, i can't connect to any 3G networks since getting my phone. And since my provider only supplies 3G and not 2G, i'm screwed.
I've factory reset, flashed various stock roms, 244, 423 and also flashed CM10.1 and CM10.2. No luck! I figured one would have a baseband that worked properly?
Everything else works fine, wifi, calls, nfc etc. But when i go into *#*#4636#*#* and try to set the preferred network type, i can't select LTE etc, it just defaults back to WCDMA. Also i have no option for LTE in the mobile settings network type (i did previously). Only WCDMA only, GSM only or WCDMA (preferred)/GSM. The last one should work, but still can't connect to 3G networks. Every time i try, it tells me "could not connect to the selected network, check your sim, blah blah". But it connects to the 2G variant of that network just fine.
My APN settings are fine, as i copied them from my HTC One on the same network. And the imei isn't blocked according to my provider.
I have tried another sim and this sim in another phone, so there is nothing wrong with my sim cards. And i doubt there's anything wrong with the sim card slot, since 2G wouldn't even work then. I'm on Three UK and have phoned them for help, but they were useless and fobbed me off to my insurance company.
Any ideas? I'm pretty much out of them

The fact that they unlocked a locked bootloader and SIM unlocked the phone sounds a bit dodgy to me.
You could try downloading the APN settings, go to Settings>Xperia>Internet settings.

Drummerjed said:
The fact that they unlocked a locked bootloader and SIM unlocked the phone sounds a bit dodgy to me.
You could try downloading the APN settings, go to Settings>Xperia>Internet settings.
Click to expand...
Click to collapse
Yeah i was thinking that myself, and have read reports of them sending people replacement phones with blocked imei's etc (stolen phones).
Think i'll be sending it back to them. The internet settings didn't work, but thanks for the suggestion

Mountainjew said:
Yeah i was thinking that myself, and have read reports of them sending people replacement phones with blocked imei's etc (stolen phones).
Think i'll be sending it back to them. The internet settings didn't work, but thanks for the suggestion
Click to expand...
Click to collapse
Yeah probably a good idea, get them to explain why they had to unlock the bl and SIM lock in order to replace the screen!

You on 3 by any chance?
Sent from my C6603 using xda app-developers app

Kirkymole said:
You on 3 by any chance?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Yeah i am.

How do you find your signal? Obviously having no 2G network is, in some cases, a disadvantage.
I only ask as on my HTC One S my signal was fine all the time, now with my Z I find my signal patchy and it takes a while to find any.
Oh and I wonder, does your My3 app work? Mines not working anymore, it always thinks I'm on wifi so won't open any payment pages.
Sent from my C6603 using xda app-developers app

Kirkymole said:
How do you find your signal? Obviously having no 2G network is, in some cases, a disadvantage.
I only ask as on my HTC One S my signal was fine all the time, now with my Z I find my signal patchy and it takes a while to find any.
Oh and I wonder, does your My3 app work? Mines not working anymore, it always thinks I'm on wifi so won't open any payment pages.
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
My signal on the Z was always great when it worked. On my HTC One it's not so good. The three app won't work on my Z, since i obviously have no data connection at the minute. But i never had any issues with it.

[Q] Please help! Sprint One sim unlock, Always No service and won't auto reconnect

For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks

Sim Unlock
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
How did you get the SIM unlocked in the first place?

lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
This is probably because T-mob covers only particular places the frequencies this phone uses http://theunlockr.com/2013/07/05/htc-one-sprint-specs/ vs t-mob https://t-mobile.jive-mobile.com/#jive-document?content=/api/core/v2/documents/4988
Sent from my HTCONE using Tapatalk

Is there any solution for this problem ?
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks

lazybozz said:
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
Click to expand...
Click to collapse
well, I am not an expert on the tmobiles network, but going by what lazybozz, said, I seem to remember tmobile using different bands than the other carriers, so what you may be experiencing, is the phone being in the vicinity of multiple towers, but not all of them are within the band that the phone supports. So its like the phone doesnt even see those towers. On a side note, this issue caused alot of chaos for those who unlocked iphones about 3 years ago, they could use EDGE on tmobiles network but not 3G, so i assume this is a similar situation. So long story short, yeah you probably cant fix the problem, unless you get a quad band phone. I could be wrong, but it does sound like a logical reason for the issue you are having.

as elvisypi said above, Its the freq that T-mobile operates on in that area. If your getting T-mobile at all in the states then you have already flashed a radio. However flashing any other radio is not going to give you the freq that tmobile uses, Its not a software limitation its a physical hardware limitation.

Thanks for your reply, do you know any app out there that monitor and alarm you when the network or signal is lost ? That works with 4.3 ?That way at least you know the phone is offline ... some of the apps I tried is anything at all ...
Thanks

Have you tried an app like tasker? Its essentially an automation app. It isnt jist for your use. Its for many different functions. Jist look on the app store for tasker. That might help
Sent from my HTC Butterfly s using Tapatalk

wifi calling

I got a n950U1 unlocked note 8 ( not rooted) which is a snapdragon version. I am not living in the states but bought my mobile in my holidays and was wondering how to get wifi calling on this phone. My carrier has it available as i was using it on my previous mobile, and can still use if i use my sim in iphone. I heard that the t-mobile version has it but how can i activate the setting or get an apk which can enable this setting for me? Is the app completely missing or any secret setting needs to be enabled?
Or is there a different way to enable this feature? I know that the N950F version has it but why not this one? I wasn't aware that there are differences in such options.

Also unlocked N950U1 is able to use wifi calling.
If not yet upgraded to Oreo, you can enable Wifi calling in IMS settings, using Shortcut Master app. (Search this forum for thread)
Setting will then be in Phone/Calling app, not in the general phone Settings.
After Oreo I no longer can access the IMS settings, but luckily Wifi calling remained enable after FW upgrade.

I have tried to enable via shortcut master but the app itself to make wifi calling seems to be missing. There is no setting to enable in IMS settings

MiLoKa said:
I got a n950U1 unlocked note 8 ( not rooted) which is a snapdragon version. I am not living in the states but bought my mobile in my holidays and was wondering how to get wifi calling on this phone. My carrier has it available as i was using it on my previous mobile, and can still use if i use my sim in iphone. I heard that the t-mobile version has it but how can i activate the setting or get an apk which can enable this setting for me? Is the app completely missing or any secret setting needs to be enabled?
Or is there a different way to enable this feature? I know that the N950F version has it but why not this one? I wasn't aware that there are differences in such options.
Click to expand...
Click to collapse
I also have SM-N950U1 and I have NEVER seen or found the WiFi calling in this device, regardless of version Nouget or Oreo. I have read also a few months ago that using Shortcut maker it "should" be able to work but I also have had no success with this. You are able to find bits and pieces of WiFi calling but no actual app for it to work.

As I stated, the setting is in the Phone / calling app. In Shortcut Manager look for "WfcPref".

Not really a solution but more of a bandaid , maybe resort to flashing the t mobile firmware if all avenues have been exhausted?
Sent from my SM-N950U using Tapatalk

OnnoJ said:
As I stated, the setting is in the Phone / calling app. In Shortcut Manager look for "WfcPref".
Click to expand...
Click to collapse
I also have checked that option but there is no actual app launching, it is all tutorials or help files. I suppose it is not included within the firmware. Or maybe it is because i haven't initialize it with a t-mobile sim card. I was just hoping that maybe there is some sort of apk app by which we can have it.
This is all i get in shortcut master

Just to add also the phone/ calling app screenshot and the connections/ more connections screen

Here is what i noticed.
Note: I'm on note8 exynos csc xme
I use dual sim.
Sim1 do not support wifi calling
Sim2 supports wifi calling
I have wifi calling setting to switch it on only when i switch everything to sim2, data messages and calls.
Sent from my SM-N950F using Tapatalk

vash_h said:
Here is what i noticed.
Note: I'm on note8 exynos csc xme
I use dual sim.
Sim1 do not support wifi calling
Sim2 supports wifi calling
I have wifi calling setting to switch it on only when i switch everything to sim2, data messages and calls.
Sent from my SM-N950F using Tapatalk
Click to expand...
Click to collapse
Odd upload fail..View attachment 4467264View attachment 4467266
Sent from my SM-N950F using Tapatalk

Unfortunately my phone is not dual sim but i am wondering if rooting the phone would help me to be able to have wifi calling?
Is there any way to fix this by rooting the phone?

MiLoKa said:
Unfortunately my phone is not dual sim but i am wondering if rooting the phone would help me to be able to have wifi calling?
Is there any way to fix this by rooting the phone?
Click to expand...
Click to collapse
It's restricted by 2 factors. Your telco and csc.
Obviously to have wifi calling ur mobile operator must support this and allow ur phone number to use this function.
Second is the csc of your phone. Some branded phone restrict this, they do it via csc code. U can look around on this forum there is ppl that manage to decrypt the csc files edit it and load it back. Root required for this.
Sent from my SM-N950F using Tapatalk

vash_h said:
It's restricted by 2 factors. Your telco and csc.
Obviously to have wifi calling ur mobile operator must support this and allow ur phone number to use this function.
Second is the csc of your phone. Some branded phone restrict this, they do it via csc code. U can look around on this forum there is ppl that manage to decrypt the csc files edit it and load it back. Root required for this.
Click to expand...
Click to collapse
Hi again,
My telco has it as i was using on my iphone. The problem is with the note 8, There is no functional app or apk for this when i do a search on shortcut master. After rooting will i be able to get the wifi calling app from somewhere after editing the csc?
Or is it much easier if i change the firmware with tmobile branded and then use my phone with it. Do you think i will get the app then by editing the csc file?
Or will it still not work as it is t mobile branded.
This is so annoying, it should have been much easier and with much more freedom, why is this wifi calling even missing as app, they already can disable if the telco doesnt support it. I never had such issue before

With Note 8 N950U1 you should have wifi calling without any problems.
Check with T-Mobile site how it works and what to do, i.c. check the requirements.. Did you put in 911 address?

vash_h said:
Here is what i noticed.
Note: I'm on note8 exynos csc xme
I use dual sim.
Sim1 do not support wifi calling
Sim2 supports wifi calling
I have wifi calling setting to switch it on only when i switch everything to sim2, data messages and calls.
Sent from my SM-N950F using Tapatalk
Click to expand...
Click to collapse
Hi vash
My wifi calling is working well on sim 1 until I change this sim card to slot 2, then changed call/text and data to SIM 2,
(because I inserted SD card with 2 sim cards now, my another sim card was issued by another country, cannot get new one, so I cut the SIM 1 and moved to SIM 2)
Then wifi calling disappeared, it's gone..
Looks wifi calling will be working on SIM 1 only.
---------- Post added at 23:54 ---------- Previous post was at 23:43 ----------
I'm sorry.
WiFi calling is working for SIM 2 as well.
Depends on the WiFi internet connection quality.

hinnn said:
Hi vash
My wifi calling is working well on sim 1 until I change this sim card to slot 2, then changed call/text and data to SIM 2,
(because I inserted SD card with 2 sim cards now, my another sim card was issued by another country, cannot get new one, so I cut the SIM 1 and moved to SIM 2)
Then wifi calling disappeared, it's gone..
Looks wifi calling will be working on SIM 1 only.
---------- Post added at 23:54 ---------- Previous post was at 23:43 ----------
I'm sorry.
WiFi calling is working for SIM 2 as well.
Depends on the WiFi internet connection quality.
Click to expand...
Click to collapse
yup.. wanted to ask you to check internet connection quality. if the connection is not good wifi calling doesnt work. most of the time when i am overseas, hotel wifi is not good enough for wifi calling.. thus kind of useless for me.

vash_h said:
yup.. wanted to ask you to check internet connection quality. if the connection is not good wifi calling doesnt work. most of the time when i am overseas, hotel wifi is not good enough for wifi calling.. thus kind of useless for me.
Click to expand...
Click to collapse
Yes, thanks.
But probably not only internet quality, I think carrier will check some certificate or something.
Because no WiFi calling icon when I'm using the employee WiFi in office, I logon with my user name and password, and sometimes public WiFi is also not working for WiFi calling,

On the main screen click on bottom left call icon to make a call. Then go to setting on top right 3 dots down. You will see wifi calling enable or disabled. You can turn on or off. If it can help someone. I was looking everywhere and it didnt help, but eventually found it. It's not in connection and more setting like some place stated.