Hi all,
I was using my P905 international version with LTE before my EU trip.
In EU, I lost the 4G connection in roaming. When i came back to home country, i found out LTE is not working, when i attempt to make a call, i get not registered network message and lose connection.
But I have phone function and EDGE internet in GSM only mode.
IMEI number is correct, and it is same as original.
Try to solve problem, I made factory reset more than 10 times. I installed Hong Kong, Taiwan region roms Kitkat and Lollipop, even Lineage os from here. But no luck, no LTE anymore.
When i play around with *0011# and Q > 0000>UE Settings & info > setting>Protocol>
I receive 4G connection for a while then I lose it again.
I tried Auto/Manual Network Choose too, nothing works but GSM only.
I checked EFS files, everything seems correct, no corrupted file there as I understand.
Do you guys have any idea how to solve LTE connection problem?
I think i found a solution. Not sure.
I download the CP / MODEM file from following link.
https://zfirmware.com/samsung-galaxy-note-pro-12-2-p905-repair-firmware/
I made hard reset from the system. I delete user files and reinstall it.
4G and 3G came back. Now it is connecting to 4G and can make phone calls. But the connection drops after 10 mins. I need to turn off mobile connection and reconnect it. It connects for few minutes or never.
I need to restart the device and getting 4G or 3G connection for a while again.
When it connects to 4G or 3G, if it is stable connection, I can make phone call too and does not receive not registered on network error.
Should I install Stock Rom again? or try to play with some config files?
Do you have any idea?
no idea?
is there anyone has nv_data files in EFS folder? I think mine is missing.
Hi, I have the same problem.
dannyt84 said:
Hi, I have the same problem.
Click to expand...
Click to collapse
did you try to do anything?
we need help here. Is there anyone can help us?
I do not want to give up with my P905.
no help?
do you have any idea to have stable 4G? Only LTE mode is not stable. I tried. Now GSM/WCDMA/LTE mode is running but, LTE is dropping very often. I get stable connection with other Samsung Device.
as i see, there is no help. I am changing to T835 256gb LTE version.
Related
My father is using Tab2 (P3100). Running Stock OS, Unrooted. 3G Data Connection from Vodafone Delhi India.
since a month or so back he found a update notice and upgraded the Stock Firmware to Latest 4.1.2 using WIFI
Not sure but might be since then, Whenever he's On Roaming, Data Connection Won't work.
Currently He's in U.P. circle it won't connect, Voda has 3G Service here, And I use it everyday at home/city wide.
Tried following:-
1). Checked APN Settings, they are correct.
2). Checked Data Roaming in Mobile Networks.
3). Tried Switching to GSM Only, and WDMA Only, WCDMA/GSM Auto Option, All options same result.
4). Checked wifi is OFF, and Data Connection IS Enabled, using Widgets or APPS but it won't turn on
5). Took out the SIM from Tab2, and Inserted In my Android Phone and 3G/2G Connects Instantly.
6). Put A different SIM which is from my Region but as its not On Roaming, Data Works fine.
7). Checked with operator they have no clue whats wrong in the TAB.
8). Requested Fresh APN Settings from Operator and saved it, But Tab2 won't connect.
Can someone shed some light if this is a BUG in current latest firmware of Tab2 or I am getting and my brain fails to finds a solution.
Any help will be appreciated, don't let me down my fellow members pleaseeeeee
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is HSPA, my local carriers can only provide LTE, GSM and WCDMA rat types, I don't know if it's the case. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose "LTE only mode", the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. I tried to use 2G, 3G and 4G networks, but none work, nothing appears. Also I tried to fix this problem by flashing a Cloudy ROM wich is lollipop 5.0 and it didn't solve my internet problem. BTW, my location is Estonia.
I really need your help guys, I'm desperate as hell, this is my last option, because I didn't find any other solutions on my own.
Counting on you :3
romax11 said:
Hi, I recently bought a LG g3 smarthphone and I found out that it's an AT&T version phone, but thankfully it's unlocked. My problem is, that it doesn't get any mobile network. In the setting it says that the Mobile network type this device can use is HSPA, my local carriers can only provide LTE, GSM and WCDMA rat types, I don't know if it's the case. I've tried to solve this on my own, but without luck. The solutions with 3845#*850# or similar codes just woun't work, when I choose any RAT it says: "succsess", but it doesn't change a thing and when I choose "LTE only mode", the phone blocks my mobile connection and says: "Restricted access changed: Data service is blocked" .
I really need any help, because I cannot see myself using a mobile phone without mobile internet. I tried to use 2G, 3G and 4G networks, but none work, nothing appears. Also I tried to fix this problem by flashing a Cloudy ROM wich is lollipop 5.0 and it didn't solve my internet problem. BTW, my location is Estonia.
I really need your help guys, I'm desperate as hell, this is my last option, because I didn't find any other solutions on my own.
Counting on you :3
Click to expand...
Click to collapse
I think your a little confused about your network. HSPA IS WCDMA/GSM. You want to just slept gsm/WCDMA/LTE
Sent from my iPhone using Tapatalk
Flashing a ROM is not the solution. AT&T version of the LG G3 covers a limited radio frequency spectrum. It could be that the phone does not cover the frequency of your carrier. Another issue may be with the carrier themselves blocking the IMEI (I know some carriers require registering the IMEI on their network). Of course you must also make sure the carrier has data services available to you.
I kinda have the same problem....
No service.
I've tried everything to no avail.
Help gor a fix.
I really need help with my device, I searched all over XDA and no-one seems to have the same issue as me.
Here is some information:
1) Nexus 6P (H1511)
2) 6.0.1 Absolute stock, no rom, no root, no custom recovery. Build number MMB29P.
Recently got a new Nexus 6P and imported to Russia. All of the major bands here are supported. And the phone worked excellent for a few weeks, but then it lost all 3G or GSM connectivity. Just randomly,didn't do anything with it, the only thing I did is move to another city but than I got back, the issue didn't resolve. LTE works perfectly but can't call or receive calls, can receive sms though. Reseting network settings and factory reset changed nothing. Tried manualy set network to WCDMA or GSM with *#*#4636#*#* command, the moment I switch to anything besides LTE the connection is lost. Contacted the provider, no problem on their side, my SIM works good in other phones, my phone with other SIMs - no.
I don't think it is a hardware issue because a few times I managed to get everything working after an hour of switching networks and bands with no particular order in the *#*#4636#*#* testing mode.
After a while I figured that if I set phone to "GSM only" on USA bands in testing mode, but at the same time set it to "LTE prefered" in the normal network settings menu. I am able to set phone to Band mode 7 and set the network back to 2G in network settings keeping it on " GSM only" the whole time and only after this compicated algorithm and after a reboot 2G and 3G starts working. But any reboot after that revertes everything back to only LTE stage. Also if I get everything working but than reset network settings everything stops working again.
I have no idea what caused such an issue, I really hope someone can help.
Sorry couldn't post screenshots because of the "10 posts rule".
hello,
I am from India and using Vodafone network. I am facing a very weird problem with my OPO. I am able to receive and use LTE ie I can use internet and send and receive messages.
But the problem starts when I try to make a call. As i dial a no. the phone switches to 3g and I receive a error saying NO NETWORK CONNECTION in about 5-7 seconds. To confirm this problem, I tried to switch to 3g only and 2g only in the network settings. Whenever I select 2g or 3g, my connection is lost and I cant even register to a network
I have tried many other sims including reliance, idea and another vodafone sim with the same result. I have flashed the stock COS file using fastboot to make my phone completely stock including clearing data, internal storage and system. I have tried a lot of roms which never used to give me such a error but the problem persists in all the roms
Please guys help me out
Thank you in advance
chetan_p said:
hello,
I am from India and using Vodafone network. I am facing a very weird problem with my OPO. I am able to receive and use LTE ie I can use internet and send and receive messages.
But the problem starts when I try to make a call. As i dial a no. the phone switches to 3g and I receive a error saying NO NETWORK CONNECTION in about 5-7 seconds. To confirm this problem, I tried to switch to 3g only and 2g only in the network settings. Whenever I select 2g or 3g, my connection is lost and I cant even register to a network
I have tried many other sims including reliance, idea and another vodafone sim with the same result. I have flashed the stock COS file using fastboot to make my phone completely stock including clearing data, internal storage and system. I have tried a lot of roms which never used to give me such a error but the problem persists in all the roms
Please guys help me out
Thank you in advance
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
I managed to solve the same problem not a long time ago. At the end of this post there are several values you can write in nvram. Try experimenting with the ones.
If it did the trick just don't forget to make a backup of EFS partition
same problem, let me know if you resolve
I think you might need to unlock all bands. Check this out: http://forum.xda-developers.com/oneplus-one/general/guide-unlock-aditional-bands-qualcomm-t2877031
Notes:*Those modifications need to be redone after radio*flashes.*
I will certainly try that..
But is it possible that the bands I need were unlocked earlier and now they are not, beacause 10 days earlier my 2g and 3g networking on this phone were working perfectly...
On that day I messed up a lot of settings in *#*#4646*#*# menu, could this be the possible reason that some of the bands are now locked???And I also want to tell you that all the options like WCDMA only GSM only etc which were earlier available in the menu are still available
Thanks your replies
Hi,
I bought this phone Lg G4 h810, it shows AT&T logo whenever i boot it and the problem is despite of network mode on lte/wcdma/gsm/auto it always runs on2G internet speed and shows E sign.
I am from india and many service providers are still not offering4G internet service. But this phone doesn't even runs on wcdma. My previous phone lenovo was nicely running on wcdma and always showed the sign H.
My cellular operator is idea cellular and i had a word with them, they sent me settings and all and help me input the settings manually too, but nothing worked.
I checked even the frequencies, idea cellular is offering UMTS B1(2100) and UMTS B8(900 gsm). I checked this on LG website and these bands are compatible with the phone i bought, but still i can't get anything more than2G. Why so?
Plus there is one more problem, when i switched it on for the first time it showed update available And when i tried to update, it showed error and now always there's an icon on top left corner of phone saying couldn't install system update. I tried restarting and updating the device many times, but it's still the same.
Any help is much appreciated.
Thanks in advance.
Have you put your Company APN?
Yes i did, the company executive even helped me to manually save the settings to run the internet in a 3G mode. But all efforts in vain.
Did you solve the issue?
Anything new? I have the same problem.
I have this problem too
Try hidden menu with *#546368#*810# and under Field Test menu / Modem settings if there is VoLTE on/off chose VoLTE and restart. I have done that and my phone starts working with 4G. Don't forget to set up good APN if it's not automatically set by network provider.
scytalemk said:
Try hidden menu with *#546368#*810# and under Field Test menu / Modem settings if there is VoLTE on/off chose VoLTE and restart. I have done that and my phone starts working with 4G. Don't forget to set up good APN if it's not automatically set by network provider.
Click to expand...
Click to collapse
Hi
Under VoLTE there is another entry named "Session" and in there
RPR(on/off) switch
I enabled it and restarts but it is again on 2g
Anyone further on this issue??
I have this problem too
I was flash the stock firmware,custom firmware customizing the build.prop,changed the settings in the engineering menu *#546368#*810# disconnected volte,changed LTE bands forcibly. Nothing helps,dont work 3G LTE - 2G only(. I realized that I need to re-flash (change) the original QCN file for H810 and re-register IMEI , but I can not find QCN it freely available.
Hello there, i had the same issue. The fix that worked for me was searching for network manuallly and reconnecting again to my carriers LTE network. Worked as a charm. The issue maybe was a brutal handover as I had been travelli g from a city to another one 200 km away. So somehow I had been disconnected from the LTE network and left stranded in the 2g one. Try it it should work