Database Develop

[Q] LG Optimus Black internet problem

Well recently i bought a LG Optimus Black, at the begining internet and all worked just fine, and now suddenly i cant connect to internet.
I am able to connect to a wifi network, but 3g wont work, how can i fix this?
Every opptions are right.
I tried the same sim card in Samsung GalaxyS2 and some other phone, it works fine. So it has nothing to do with the SIM.

try to configure your 3g network, look for it on the internet.
i only had this problem when i install NOVA ROM, but it was easy to solve the problem.

I have tried but not helping.

Is it running on Stock ROM or NOVA?
Just like lucasmalaguti said, this problem happens only on custom ROMS.
Anyway, just check your settings.
Settings > Wireless & Network > Mobile Network > Access Point Names
Search on the internet or ask your provider for the setting configuration.
Also, if you have a few Access points, Eg. MobileInternet1 & MobileInternet2, make sure the right one is checked.
Download APN Backup & Restore app from market to delete and re-add Access Point.
Once edited/add, reboot phone for changes to take effect.

Check your APN settings
Sent from my LG-P970

I'm running a stock V10E ROM
My APN settings are OK (sent from my provider)
Tried to manually add it, but nothing helps

Today i called LG Service support.
They say that i am not the only one with this problem.
The problem seems to be caused by automatic software update (V10A => V10E).
Only solution is to reflash ROM.
So i did that and now everything works fine.
Thank you all for trying to help!

I have same problem, how do i re-flash to the old fw
Hi, I got same problem please tell me how can i re-flash my previos fw? thanks.

Hello! I'm newbie
I have the same problem. Please help! What is this ROM? How can I do this? Can this really fix my internet problem? thank you

Had same issue, thought it was the carrier but it could be the phone, hope this helps
1. turn off your OB and take the sim off
2. test the sim's 3g on some other phone
If it's working
3. put it back in your OB = problem solved
It it's not working
3. call your service provider

(SOLVED) Signal issues sice 4.3

Hi everyone,
since the update to Android 4.3 I'm experiencing some signal issues which makes me think about sending the phone to HTC.
First, after booting up the phone it connects to the GSM/3G network but after a minute or two it looses the signal for a while.
Second, every time i turn on WiFi the phone disconnects from the GSM/3G network. I'm not talking about switching from mobile data to WiFi, i'm talking about disconnecting from the mobile network at all!!! It says "no signal" and i get a little "x" displayed at the status bar every time i turn on WiFi.
These issues had not been present with Android 4.2.2 but with 4.3 it's just annoying.
I tried to avoid this by turning off the energy saving option but it's still the same.
Anyone with the same problem or even a solution?
Regards!

Phone goes in Unreachable state when power saver is ON after upgrading to 4.3
Hello All,
After upgrading my phone to Android 4.3, i am facing a problem i.e.when in built power saver mode is ON or any other third party application for power saving is activated, then when i am using my phone on 3G it works just fine but after some time when i put the phone in idle mode (screen lock & not using the phone) after some time when i again try to use my phone , my phone's data connection couldn`t start, and when i try to manually switch on the data connection through setting, it shows "Turning On.." & remains in this state. And during this scenario my phone goes in unreachable state, i have to restart my phone to make it working.
Pls help, is there any workaround to eradicate this problem, Am i the only one facing this problem or it is problem in all HTC one after upgrade to 4.3.
Thanks.

need more info
Please provide more information.
Are you using a m7 m7u M7ul ...etc
Who is your carrier?
What ROM did you update from and what ROM did you install?
What steps did you take?
Did you update the firmware?
Did you wipe cache and dalvek cache?

same issue here.
any solution?

Jcc1dls said:
Please provide more information.
Are you using a m7 m7u M7ul ...etc
Who is your carrier?
What ROM did you update from and what ROM did you install?
What steps did you take?
Did you update the firmware?
Did you wipe cache and dalvek cache?
Click to expand...
Click to collapse
I bought a factory SIM unlocked HTC one with CID_102 and I'm using it with an austrian tele.ring SIM card. I didn't perform any software/bootloader/CID or whatever modification at all. I think the device has been shipped with Android 4.1.2, i don't remember. After Android 4.3 OTA update these problems occured. Before 4.3 OTA update i performed the 4.2.2 OTA update and used the phone for a while without any problems at all, until 4.3 OTA was available. Since then these signal issues make me crazy. According to system info the baseband version is 4A.21.3263.04_10.38m.1157.04L and the build number is 3.62.401.1 CL264544
If you need more info let me know!
Regards!
PS: I also performed a factory reset, but it's still the same.

Finally, there was a quite simple solution for this issue. I switched from "GSM/WCDMA/LTE automatic" to "GSM/WCDMA automatic" and this problem didn't occur any more.

[Q][GSM] restore radio in droid 4

Hi I have a droid 4. I bought it in the USA and used it only in Italy. It was rooted and unlocked and it has always been working fine over GSM and 3G. Then I decided to install CM 10.2.1 and then i upgraded it to CM 11. In both cases sending sms was not working (calls and internet fine). Trying to fix it I went also in the *#*#4636#*#* testing menu and changed setting of radio. But now I cannot restore it and I always get no signal. Both with CM but also booting from Stock ROM.
I flashed many times but still nothing. As first I'd like to have singal back to call and use the net (3G). then I'll fix sms.
Can I do a sort of radio otpion reset? or firmware reset?
Plese help! Thank you!
IF there is some better section (or forum) just tell, I guess it can be a common issue and not specific for D4.

teto.1991 said:
Hi I have a droid 4. I bought it in the USA and used it only in Italy. It was rooted and unlocked and it has always been working fine over GSM and 3G. Then I decided to install CM 10.2.1 and then i upgraded it to CM 11. In both cases sending sms was not working (calls and internet fine). Trying to fix it I went also in the *#*#4636#*#* testing menu and changed setting of radio. But now I cannot restore it and I always get no signal. Both with CM but also booting from Stock ROM.
I flashed many times but still nothing. As first I'd like to have singal back to call and use the net (3G). then I'll fix sms.
Can I do a sort of radio otpion reset? or firmware reset?
Plese help! Thank you!
IF there is some better section (or forum) just tell, I guess it can be a common issue and not specific for D4.
Click to expand...
Click to collapse
fastboot radio radio.img
I did it too
radio.img is found on the fastboot archive, no data will be lost. enter in fastboot by pressing vol up + down and power
Regards

To make your SMS work, you need to change a setting in build.prop relating to it, none of the radio settings will make it work since that isn't the problem.
ro.telephony.gsm-routes-us-smsc=1 must be changed to ro.telephony.gsm-routes-us-smsc=0
or install mentor's gsm patch

[Q] No mobile data (3g, H+) on Moto G LTE

Hi,
I've mostly had Cm12.1 on my Moto G but recently (on accident) updated to CM13. Since then my phone's mobile data(3g, H+) hasn't worked.
I've tried to empty data/storage/system/dalvik/cache, everything I could, as well as a few different roms:
- The newest snapshot for thea, 20151117
- The newest nightly, 20151209 (CM13)
with no results...
On my current try I see an exclamation mark on the signal icon, but nothing works to get mobile data working.
Wifi works beautifully though as well as calls and text messages.
Any ideas what I could do?
The last rom that my mobile data worked with was the newest CM12.1 20151129, but I'm haven't been able to download it since it has been pulled from the cyanogenmod website. If someone has it, could they send it to me?

Same issue here, updated to cyanpop then downgrade to stock 5.0.1 and I have no signal

SM-g800F 3g and 4g problem

Hello,
My 3g and 4g are not working on my s5 mini (SM-G800F)
When i turn the netwerkmodus on LTE/WCDMA/GSM automatic i get Emergency calls only. When i turn the modus on only GSM(2g) i have signal back.
How can i fix this i run the stock android 5
Roan

roanbbb said:
Hello,
My 3g and 4g are not working on my s5 mini (SM-G800F)
When i turn the netwerkmodus on LTE/WCDMA/GSM automatic i get Emergency calls only. When i turn the modus on only GSM(2g) i have signal back.
How can i fix this i run the stock android 5
Roan
Click to expand...
Click to collapse
Hi everybody (and sorry in advance for my poor english) !
I am having exactly the same problem as the OP. To explain the situation in a nutshell:
I have the SM-G800F, for about a month. It worked fine, until I moved to the other end of France (it probably has nothing to do, though). Passing on the highway, "Emergency calls only" showed up while I was looking at my emails. The problem is that things never got back to normal.
The situation :
As I said, the same as the OP. When I turn on my phone or I go out of airplane mode, my phone tries to connect to 2G, then 4G / H+. The process takes a few seconds, then any indicator (left of network "bars") disappears, and I can't issue or receive calls, nor use data.
But if I force "2G only", everything works just fine.
I was using a rooted 5.1.1.. In the meantime, I tried several suggestions found here or elsewhere:
-Turn off the phone and on again : Nothing
-Enable / Disable flight mode: Nothing
-Remove / Replace the SIM card: Nothing
-Putting the sim in another phone: everything works just fine, so the problem may not be a faulty sim card
-Wipe Data / Cache Data then use Odin to reinstall a stock 5.1.1 rom (I'm really a noob to find the right words, sorry in advance, but my phone says, under the "version number" field , LMY47X .G800FXXU1BPC4 and the ROM I used is named : -G800FXXU1AOG2_G800FOXX1AOG1_G800FXXU1AOG2_HOME.tar.md5 filename
Manual carrier selection : Nothing
-Turn on Data Roaming : Nothing
-Checker my APN : Everything seems just fine
I can't tell for sure but I do not think it is related to my home. My problem began on the road and took the rest of the trip (2h/3h), and even around in the city, it remains. Moreover, my backup phone and the other people on the same network as me (Orange) don't encounter this problem.
So, I'm a little bit confused and a bit worried because of Knox (0x1: /). If you have opinions, advice, guidance, thank you very much in advance!
Joël

roanbbb said:
Hello,
My 3g and 4g are not working on my s5 mini (SM-G800F)
When i turn the netwerkmodus on LTE/WCDMA/GSM automatic i get Emergency calls only. When i turn the modus on only GSM(2g) i have signal back.
How can i fix this i run the stock android 5
Roan
Click to expand...
Click to collapse
figure anything out? just had this happen to me as well.

civicsr2cool said:
figure anything out? just had this happen to me as well.
Click to expand...
Click to collapse
No, I really don't know what the problem is I think it's something in the phone itself

I've got the same problem too
Did you find the cause of this issue in the end?

adamh22 said:
Did you find the cause of this issue in the end?
Click to expand...
Click to collapse
Hi !
Not yet ... I have another phone now but i still try now and then to fix my S5 mini.
So far, nothing worked. Some tech guy told me it was a common issue with that phone's antenna. Also read that from several forums.
Still, i read that some users were able to fix similar looking issues by flashing the modem file with Odin. I'm a bit n00b but i guess i'll give it a try.
Any success on your side ?

You can try searching for your carrier manually and choosing it.

Mrdream94 said:
You can try searching for your carrier manually and choosing it.
Click to expand...
Click to collapse
Thanks, but i already tried that many many times. My S5 Mini just displays "Network XXX unavailable" (or its nearest equivalent in French)
Did any of you manage to fix that by flashing your modem file with Odin ?
I've tried additional stuff but nothing seems to work. Back to stock Marshmallow. Still loosing radio signal whenever I enable 3/4G.
Maybe the bottomline is "hardware failure" but who knows...
Thx everyone!

seelebrn said:
Thanks, but i already tried that many many times. My S5 Mini just displays "Network XXX unavailable" (or its nearest equivalent in French)
Did any of you manage to fix that by flashing your modem file with Odin ?
I've tried additional stuff but nothing seems to work. Back to stock Marshmallow. Still loosing radio signal whenever I enable 3/4G.
Maybe the bottomline is "hardware failure" but who knows...
Thx everyone!
Click to expand...
Click to collapse
Have you tried a deep reset? If it does not works, try a custom ROM...

Hi !
Thanks for your reply,
I did try "Factory Reset" and "Wipe Cache" while in the Recovery Menu (Home+Power+Vol Up if I remember well). Is that what you were refering to ?
But I think I didn't try flashing a custom rom. Could you recommend one ?

seelebrn said:
Hi !
Thanks for your reply,
I did try "Factory Reset" and "Wipe Cache" while in the Recovery Menu (Home+Power+Vol Up if I remember well). Is that what you were refering to ?
But I think I didn't try flashing a custom rom. Could you recommend one ?
Click to expand...
Click to collapse
Yes I was meaning this. For a custom ROM i can recommend One of the latest with NOUGAT like Lineage OS 14.1

Mrdream94 said:
Yes I was meaning this. For a custom ROM i can recommend One of the latest with NOUGAT like Lineage OS 14.1
Click to expand...
Click to collapse
I'll give this a try and keep you updated, thanks !

Mrdream94 said:
Yes I was meaning this. For a custom ROM i can recommend One of the latest with NOUGAT like Lineage OS 14.1
Click to expand...
Click to collapse
Hi,
I installed Lineage OS 14.1, it's great but the same problem keeps happening. Everything works just fine in 2G, but whenever I enable 3G or 4G, my phone looses radio siglal and switches to "Emergency calls only" after a few seconds.
Any other thoughts ?
Thx !

As a side question, would you think of any way to rule out/confirm the possibility of HW failure ?
Thanks again !

Did anyone found solution for this?

Hi,
I've got the same problem. Tried to flash with Lineage 13.0, then 14.1 and still the same problem.
Anyone help?

Flash the last modem/baseband, did yoy try *#*#4636#*#* ? You can manually select wcdma only(3g) or lte only(4g) (sorry for my bad english)

still not working

When I choose 3G/2G auto connect from 1 line ti go to 4 signal.. so no LTE /4G for now..