Develop Bugs

[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?
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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
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^^^So true
LG NITRO-N XDA APP

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

[Q] Sporadic data connection

I just got a N7505 and with Rogers in Canada.
Data connection is sporadic. It will not work for few minutes occasionally and it is getting annoying.
I checked the APN settings and they are correct.
Any suggestions?

ddochi11 said:
I just got a N7505 and with Rogers in Canada.
Data connection is sporadic. It will not work for few minutes occasionally and it is getting annoying.
I checked the APN settings and they are correct.
Any suggestions?
Click to expand...
Click to collapse
What u mean for "SPORADIC"? is it mean the data connection is on/off? how about your sim card line? is it 3G or 4G?

seven6ixers said:
What u mean for "SPORADIC"? is it mean the data connection is on/off? how about your sim card line? is it 3G or 4G?
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Sporadic as in, it sometimes works, and sometimes not.
Wifi is fine, but mobile data (4G/LTE) is not. With the same SIM card, mobile data (LTE) works fine on LG Optimus G.

ddochi11 said:
Sporadic as in, it sometimes works, and sometimes not.
Wifi is fine, but mobile data (4G/LTE) is not. With the same SIM card, mobile data (LTE) works fine on LG Optimus G.
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Click to collapse
In my case... my sim is 3G..but i've set in Mobile Network is "LTE/WCDMA/GSM (auto connect)" at first.. then i found out my data connection same with u.. sometimes on & off... telco company advise me change to "WCDMA/GSM (auto connect)". Since my operator line area still not available for LTE service. After i changed it.. then works fine.
U try to change first, then we'll see..is it ok or not.

Here in U.A.E i was facing the same issue as a work around i go to SETTING , MORE NETWORKS i then MOBILE NETWORKS and in NETWORK MODE manually select WCDMA/GSM as off course i wont able to get LTE but data speed is much better and no signal problem what so ever.

My carrier does not use WCDMA, just LTE/GSM.
Is there a code from dialpad to get into backend settings? For instance, with my other phone (Galaxy Note 1), I can dial *#*#4636#*#* to get into phone settings for more options for network connection.

Phone stays on HSPA when LTE is available

So I own a D851, currently on T-Mobile with good LTE speeds in my area but quite often the phone switches to HSPA and doesn't utilize LTE coverage when I need it. I end up having to either switch data off/on or accessing the radio settings menu and setting it to LTE ONLY. I understand the slower network coverage saves battery but to just stay there I don't get when I'm getting download speeds of 9mb on HSPA and 30mb on LTE in the exact same spot. The thing that sucks about setting the radio to LTE ONLY is that I can't browse while on a call. Anyone know a workaround?

xlxcrossing said:
So I own a D851, currently on T-Mobile with good LTE speeds in my area but quite often the phone switches to HSPA and doesn't utilize LTE coverage when I need it. I end up having to either switch data off/on or accessing the radio settings menu and setting it to LTE ONLY. I understand the slower network coverage saves battery but to just stay there I don't get when I'm getting download speeds of 9mb on HSPA and 30mb on LTE in the exact same spot. The thing that sucks about setting the radio to LTE ONLY is that I can't browse while on a call. Anyone know a workaround?
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I had the same issue with ATT, unlocked phone. Made sure the APN was correct, tried may other APN settings, and finally called Consumer Cellular. They advised I did, indeed, have the correct APN (my first version). They did some type of reset on their end, and viola.
On my OnePlus it was the similar. APN was correct, same APN as the G3, but until I called CC, and their reset, phone would not show LTE at all, only H and H+

apn settings?
JeffDC said:
I had the same issue with ATT, unlocked phone. Made sure the APN was correct, tried may other APN settings, and finally called Consumer Cellular. They advised I did, indeed, have the correct APN (my first version). They did some type of reset on their end, and viola.
On my OnePlus it was the similar. APN was correct, same APN as the G3, but until I called CC, and their reset, phone would not show LTE at all, only H and H+
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What are the apn settings that are working for you? I've tried several times to address this issue with CC but lte STILL isnt working on either of our 2 devices. Had no problems when used with an att account.

I am still having this same problem on my LG G3 (vs985) on Cricket Wireless

[Q] Can AT&T be used with a Korean Optimus G Pro?

Hi everyone and thanks in advance for your time.
I have an unlocked Korean Optimus G Pro from the Olleh company. I switched providers to AT&T but it seems that the phone doesn't has access to the Data network provided. I have great phone signal but no Data network (No 4G LTE, 3G, Edge. Nothing at all). Everytime I turn on my data I get the message "Connection unavailable. Configure Mobile Network or Wi-Fi settings to download data."
I understand that AT&T is GSM. But this phone so far is only working with WCDMA only. I've tried switching it to GSM or any ways to make data network available with AT&T but so far it is not working. I checked the WCDMA Service settings but no luck.
Can anyone help me with this? Thanks! :good:

3rick89 said:
Hi everyone and thanks in advance for your time.
I have an unlocked Korean Optimus G Pro from the Olleh company. I switched providers to AT&T but it seems that the phone doesn't has access to the Data network provided. I have great phone signal but no Data network (No 4G LTE, 3G, Edge. Nothing at all). Everytime I turn on my data I get the message "Connection unavailable. Configure Mobile Network or Wi-Fi settings to download data."
I understand that AT&T is GSM. But this phone so far is only working with WCDMA only. I've tried switching it to GSM or any ways to make data network available with AT&T but so far it is not working. I checked the WCDMA Service settings but no luck.
Can anyone help me with this? Thanks! :good:
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Hi, Just try to configure the APN for your company, and that´s will be fine

Rucosta said:
Hi, Just try to configure the APN for your company, and that´s will be fine
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i live in pakistan , i set the apn for my network but still cant get a 3g, H, H+ on my phone . Lg g pro F240L. Any suggestion?

S4 Mini 19190 stuck on EDGE network

Hello everyone , I'm from Morocco and I need help with my device's Mobile Data.
To begin with, I've got an S4 mini 19190 3G variant, I installed a cyanogenmod ROM, it's a cm13 version, android 6.0.1. I'm using a TWRP recovery.
I've had a cm12.1 before and had the same exact problem: I'm always stuck on EDGE network .
I've gone to the settings, and made sure to choose 3G in the preffered network type.
My APN setting are correctly configured.
I've tried forcing the device to choose WCDMA by going to Phone Info. Choosing the WCDMA option disables Mobile Data and calls, with emergency calls enabled only.
Choosing the "WCDMA preffered" option doesn't change anything, it's still on EDGE.
I've looked for a solution, and noticed that some people had a problem with IMEI number, I've checked it, it's the same as the one on the back of the phone.
Anyone got any idea on how to fix this? Thank you .

Are you sure that your area has any WCDMA connection? Can you check with another phone?

Yes, I've already had H+ connection on the same phone but with a different version of the ROM, and my father has H+ working perfectly on his SGS5. I didn't try with another phone, I'll try and see if the problem comes from the SIM.

Omg Thank you! Why didn't I think of that! (How stupid of me) I tried my SIM card on a different phone (that had H+ working on it) and it went on EDGE network, and I chose WCDMA only and the connection was lost. There is a problem with my SIM card, I'm going to contact my service provider to fix this
Thanks Again!!