Develop Bugs

[Q] GSM network mode

I have noticed people managed to change their network mode to GSM only mode??? How do you that?? I only have 2 options: WCMDA and GSM/WCDMA auto?? Is this thing vary due to your courier?? Currently I am with 3 Australia. I wish I have the option to switch only to GSM. From experience, it can save you a lot of battery.

If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.

Dyonas said:
If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.
Click to expand...
Click to collapse
I have a feeling it could be the ROM or firmware that comes with it has it disabled the GSM only option. My Desire HD is the UK version. I am not sure if the other Australian version (from Voda or 3) have that options. With my original desire (and also using 3), I have that GSM only option available. So I dont think it's because 3 doesnt offer 2G network.

Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.

LecterMe said:
Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.
Click to expand...
Click to collapse
Thank you for sharing..yes, it works....but I will try out and see if it does save a lot of battery life.

Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk

ardsar said:
Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Thanks for the info. I have tested both method...both work. But the only problem, how do we set it permanently?? I mean I have noticed every time you reboot the phone, the setting changes?? and I have to set it back to GSM only??

but even if you could technically switch it to gsm, would it actually make a difference? surely if the actual mobile network is pure 3g and no 2g, then switching on the phone wouldn't change a thing? as its not actually possible to use 2g on 3 network?(because they built network from scratch out of 3g is what they always boast about anyway..)

This is strange. I have an unbranded bought sim free HTC sensation here in the UK which Im using on the 3 network and I dont have the option under network to set it to gsm only. This option should be here on an unbranded handset, and its there on my old Desire which was also bought unbranded sim free when Im using that on the 3 network.
Anyone shed any light on this? I know the work arounds mentioned above, but Im more interested in why the option is missing on my handset.
Cheers
PS I know this is the Desire HD thread but its the only topic I could find on this subject so far.

I don't think it matters, just don't even bother with the settings menu for that in the first place. in the Testing menu just set the radio to either GSM Auto (PRL) or GSM Only. GSM gives more talk time.

[Q] Mobile Network not working htc wildfire s after rooting

Hi,
I rooted my htc wildfire s and installed JxMatteo - ROM - V1.1
http://forum.xda-developers.com/showthread.php?p=21255022&mode=linear#post21255022
now my mobile network is not working. after restarting my mobile the icon will be shown suddenly range will gone and icon disappears , not connecting, i restarted phone, factory reset, again installed the rom issue remains same.
Please give me one solution for that

Might be the rom. Try going back to stock.
sent from my android powered. tank using xda premium B-)

issue remains
stock restored issue remains. do u have any suggestions?

APN
You may have lost/wiped your APN when you did the root. Check under your network settings for mobile network and then look for apn or access point names. You should have one or more APN options, if you don't, then you may need to manually enter yours.
APNs vary based on your carrier, so you'll need to either contact them or look them up on the internet. I'd be happy to help search if you tell me your provider.

goodstarbuck said:
You may have lost/wiped your APN when you did the root. Check under your network settings for mobile network and then look for apn or access point names. You should have one or more APN options, if you don't, then you may need to manually enter yours.
APNs vary based on your carrier, so you'll need to either contact them or look them up on the internet. I'd be happy to help search if you tell me your provider.
Click to expand...
Click to collapse
My network provider is TATA DOCOMO. Actually what happens is if i try to connect , suddenly range disconnect after 2 or 3 seconds range will come.
Again i will do restart or airplane mode , first time range will be shown suddenly range disconnect. strange problem. i dont know whats the problem. i dont know how to explain. i checked the APN it is fine. Is there any problem in my RADIO?

With Reliance CDMA the problem was an unregistered MEID. Are you on CDMA or GSM. Tata are known to be the toughest on security, so must be some setting which got hit for six.

sgiitk said:
With Reliance CDMA the problem was an unregistered MEID. Are you on CDMA or GSM. Tata are known to be the toughest on security, so must be some setting which got hit for six.
Click to expand...
Click to collapse
Mine is GSM

abhilashtv said:
Mine is GSM
Click to expand...
Click to collapse
SAme prob here bro ... tried custom roms and all kitchen stuffs it remains. even i am a TATA DOCOMO user.. india mumbai..

I am also TATA DOCOMO User. if i try with different sim it works. if try to connect the 3g symbol will shown suddenly range gone.. what to do? i am really fed up

now what?
same problem here
Im reading this link below: might be relevant
http://forum.xda-developers.com/showthread.php?t=1433675

[Q] help!3G connectivity has gone from my phone

my phone can not connect to 3G networks in most of our city, while it used to work just fine in these same places. at first i thought there must be something wrong with the carrier's base stations. but today i tested my SIM card on another LU6200(Korean version of Nitro HD) and it works perfectly both on 3G and 2g networks on that phone. but when i put it back into my phone, it can only get 2G signal. if i set the Preferred Network Type to WCDMA ONLY, it got no signal with just a cross on the signal bar. i have to put it back into GSM ONLY mode to receive signal.if i go out, i can get partial 3G connectivity here and there, but not consistently. sometimes even if i have full 3G bar signals on the status bar, i can not make calls or connect to the internet.i've got this problem probably after i tried to forcibly go into the Phone Info menu.i got repetitive " the process com.android.phone has stopped unexpectedly" promps , and i just ignored it and tried again. now ,2 options are missing from the menu, LTE/WCDMA/GSM and LTE Global.in place of them, it's UNKNOWN. i already tried flashing KDZ package of no avail. Does this mean a hardware malfucntion or software glitch?Please help!Thank you in advance

No one can answer?

freefall12 said:
No one can answer?
Click to expand...
Click to collapse
Ask att store for a different sim card i had lte issues and new sim card helped try that
LG NITRO-N XDA APP

Well you do HAVE GSM only selected. THATS 2G(EDGE)
for 3G you would need to select WCDMA

hyelton said:
Well you do HAVE GSM only selected. THATS 2G(EDGE)
for 3G you would need to select WCDMA
Click to expand...
Click to collapse
^^^So true
LG NITRO-N XDA APP

no, if i select wcdma, i got no signal.it should be hardware problem

Can't get 3g to work

Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks

dcuchillas said:
Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks
Click to expand...
Click to collapse
Check your APN settings. I got this problem few days ago. Just set ur apn to default. Use this app. https://play.google.com/store/apps/details?id=com.tweakker
As for the 24 gb, u might have gotten the 32gb variant.
Smack that thanks button if I helped.
N7105 Note 2 LTE International powered by Illusion ROM 2.6
Plasma Kernel 2.02
Sent from a small country named Singapore

thanks, but it's not that the data isn't working, I cannot even connect to the WCDMA network so no calls, no data.
It works on "GSM ONLY" well kinda, cause in my last phone when I was on GSM only it had EDGE connection, but this one has GPRS.
I have set the correct APN for my carrier. But I cannot even connect to the network.
Irwenzhao said:
Check your APN settings. I got this problem few days ago. Just set ur apn to default. Use this app. https://play.google.com/store/apps/details?id=com.tweakker
As for the 24 gb, u might have gotten the 32gb variant.
Smack that thanks button if I helped.
N7105 Note 2 LTE International powered by Illusion ROM 2.6
Plasma Kernel 2.02
Sent from a small country named Singapore
Click to expand...
Click to collapse

dcuchillas said:
Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks
Click to expand...
Click to collapse
i think you have 32gb version..plus minus all apps in the phone you got 24gb of storage.
about your 3g,i dunno about that because there many fix solution...some said just factory reset,some said modem is the problem and flash other modem may fix it...you can try bring it to local shop and ask them

Just one question, If the genuine app, says that it is genuine? that's trustable?
I am just worried that It might be a knock off after all, but everything on the phone seems excellent.

dcuchillas said:
thanks, but it's not that the data isn't working, I cannot even connect to the WCDMA network so no calls, no data.
It works on "GSM ONLY" well kinda, cause in my last phone when I was on GSM only it had EDGE connection, but this one has GPRS.
I have set the correct APN for my carrier. But I cannot even connect to the network.
Click to expand...
Click to collapse
go to setting >more setting>mobile network>network mode>click GSM/WCDMA (auto mode)

sora9009 said:
go to setting >more setting>mobile network>network mode>click GSM/WCDMA (auto mode)
Click to expand...
Click to collapse
I've done that, but it only works on GPRS not in 3g .
Also, when I check for the network operators on all the phones I got, I always get all the carriers, but in this phone I can only get one.

dcuchillas said:
Just one question, If the genuine app, says that it is genuine? that's trustable?
I am just worried that It might be a knock off after all, but everything on the phone seems excellent.
Click to expand...
Click to collapse
just connect it to kies or dial *#0*#

sora9009 said:
just connect it to kies or dial *#0*#
Click to expand...
Click to collapse
I tried the code and It took me to some sort of testing thing

dcuchillas said:
I tried the code and It took me to some sort of testing thing
Click to expand...
Click to collapse
fake note 2 do not have that testing thing..so you are good :laugh:
I've done that, but it only works on GPRS not in 3g .
Also, when I check for the network operators on all the phones I got, I always get all the carriers, but in this phone I can only get one.
Click to expand...
Click to collapse
cant really help you about this

sora9009 said:
fake note 2 do not have that testing thing..so you are good :laugh:
cant really help you about this
Click to expand...
Click to collapse
Well thanks, that's a relief.
I tried a factory reset right now, will try to update later.

Could it be that I have another model rom?
cause in the settings I don't get WCDMA/GSM , but LTE/WCDMA/GSM. But the GT-N7100 doesn't have LTE.

dcuchillas said:
Could it be that I have another model rom?
cause in the settings I don't get WCDMA/GSM , but LTE/WCDMA/GSM. But the GT-N7100 doesn't have LTE.
Click to expand...
Click to collapse
n7105 rom cannot be installed in n7100 phone..different hardware
maybe some expert here can help

Please If anyone can Help.
I bought this phone because my old phone (xperia ion) only supported the 900mhz frequency on GSM, so I could only get EDGE speed.
This phone (NOTE 2) it's supposed to support 900mhz in the HSDPA, but I can't get it to work only on GSM and with GPRS (slower than EDGE)
PLease, I really need help

Okay, so I was trying to do the ARIZA patch, because my serial number is 00000000 and I couldn't connect to any networks.
When I put my phone into download mode, it was all in korean and it says product name: SHV-E250S, which is supposed to be the korean note, but it doesn't have an antenna like the phones I have seen.
Could this be that this phone is really screwed???? Cause it like a gt-n7100 on the rom but has LTE, and doesn't pick any network .
If this real the korean it only works in this band 1900, 2100, which none of my carriers in my country use them...
Would you say I try to root it and try to patch??

[Q] LG G3 D855 LTE issue problem in UK

Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun

lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
You probably have the wrong band version i maybe wrong

jaythenut said:
You probably have the wrong band version i maybe wrong
Click to expand...
Click to collapse
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.

lunlun99 said:
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.
Click to expand...
Click to collapse
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ?

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ? and it's show up Connection problem or invalid MMI code

lunlun99 said:
what's activated mean ?
Click to expand...
Click to collapse
If you have 4G it will say under band i think
And you do have 4G contract with your carrier

Yes. the SIM work my other phone in LTE network
jaythenut said:
If you have 4G it will say under band i think
And you do have 4G contract with your carrier
Click to expand...
Click to collapse

I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.

lewisco said:
I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.
Click to expand...
Click to collapse
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.

There was a discussion about this in the UK thread, some phones came with 4G deactivated (on the 800MHz band used by 3 and Vodafone) that had to be activated at every boot. Replacing it fixed the problem as its not supposed to happen. But since the phone is from Asia who knows. Im not sure if flashing the eur version of the rom would work?

lewisco said:
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.
Click to expand...
Click to collapse
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.

Lennyuk said:
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.
Click to expand...
Click to collapse
Can you recommend which FW to use?

Same here d855 version 3gb ram from Hong Kong no lte in the settings

stinkypoo said:
Same here d855 version 3gb ram from Hong Kong no lte in the settings
Click to expand...
Click to collapse
LTE will work from the hidden menu, or download 4G switcher from the Play store which will take you to the menu also. Just change it to LTE/GSM/WCDMA and it will work on the 4G network (at least on 3 UK). LG UK support will not help as it came from HK. I still want to know if I can flash a Euro 32GB ROM to my phone to get it working natively.

make sure u have activate your LTE with your carrier,i you have done it,and still didnt have LTE, try the hidden menu,or try 4G switch frm playstore,rooting and deleting lteconfig from system/app would be your last option (i prefer this)

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
thank you, this fixed my problem!
my lte/3g/2g settings was everytime reset to 2g/3g modus when i got back to settings. i deleted lte config.apk and the .odex file, rebooted and BAM! it keeps on lte/3g/2g

Solved
I had the same issue (no LTE option in Networks configuration menu), until today: My phone installed firmware V10i-HKG-XX, and now I have the "GSM/WCDMA/LTE auto" option in Preferred Network Mode.
Cheers

LG G3 Asian D855 no 4G
lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
Do the following -
1. From the dailer, type in 3845#*855#
2. Select LTE Only
3. Modem Setting
4. RAT Selection
5. GSM/WCDMA/LTE Auto
You should now receive 4G but everytime you reboot, you have to repeat this procedure