Hello and thanks for checking this post!
Ive bought a LG G3 D850 in USA, unlocked. When moved to Argentina I was not able to get 3g/4g signal from my local carrier, only EDGE, as the phone wasnt sold by them they rejected to assist so on my own Ive made the following steps:
Hidden menu fixes - didnt work
Edit build.prop - didnt work
Updated from stock 4.2.2 to Fulmics 5.2 - didnt work
Flashed new .qcn files worked as follows:
.qcn #1: I was able to improve quality signal for voice and data, also fixed 3g and H connections.
.qcn #2: Quality signal decrease, EDGE works, no 3g and no H but 4G works.
What I would like to know:
1- Is it possible to use the .qcn #1 and restore my factory IMEI so I can at least have H?
2- Is it possible to edit the .qcn#1 and include the code portion from .qcn#2 that enables 4g?
That would be the perfect fix for this issue!
ps: Ive the original box with the IMEI labels and also the internal label that confirm phone original IMEI, I know change IMEI is not legal and its not what Im trying to do, Im looking for a fix keeping my IMEI stock.
Thanks for any input!
Hi i have the same problem.
Im also from Argentina and also in FULMICS 5.2
Im still no try change the QCN, because can not understand the procedure very well
Can you help me?
where can i find? and You recommend the QCN N.1 , for me is enought H.
Thanks
I hope you can answer
Hi
How can I achieve your flash qcn #1 solution on my lg magna h500?
Im having the same issue
Related
Have updated my spica from 2.1 to cyanogenmod-6.1.1-spica-alpha8.3 build number K/Criminal.r6
Everything is perfect and I like it, but It cannot connect to internet.
Here is the phone status
Signal strength is changing but have managed to see this -111 dBm 4 asu
Mobile network-both edge and UMTS
Service state-in service
Mobile network state-disconnected
IMEI-000000000000000
IMEI SV-00
WI-FI MAC address- unavailable
Bluetooth address- unavailable
I tried to re boot, I also tried to re-install the rom but I have the same problem...I read somewhere about updating prl, but I could not do it because those #### thing are not for my network providers (my country is zambia,africa).
When I flash it back to 2.1 mobile internet service is perfect.
What is the problem here?
Your help will be really appreciated.
Thank you
Hi!
That's very bad news. Are you sure you updated with firmware for your exact device? Your imei has been erased, making the phone useless as a phone. No data, no calls and no texts.
If you have a backup from before the update, restore it. Hopefully the efs folder was backed up. Without a backup, you may need to send your device for service to have the imei restored.
See this similar thread for more of an explanation.
http://forum.xda-developers.com/showthread.php?t=1027833
I hope you can get it resolved. Good luck!
Ah, you do have a backup. Restore it and don't flash that rom again. Its broken your imei.
Please be more careful what you flash and be sure it is for your device. Sounds like what you flashed was for another device.....or something just went very wrong.
Hi,
I'am facing a big problem with my D800 LG G2
I wanted to enable tethering , so i followed instructions given here
It was a seccus enabling tehtring but when i tried to connect to LTE i was only receiving HSPAP
I did everything possible to enable LTE but in vain ( Try 2nd SIM card, Go back to JB stock Rom , make changes in Hidden menu, ..)
I think i made bad changes in Setting.db file and i can not restore original file.
Can anyone help me to restore defaut settings in this file or give me some advice to correct make change in hidden menu.
I run Stock rooted LL actually
I saw in the same thread , someone faced the same issue and resolved it by flashing T-Mobile stock Lollipop
"Flash back to kitkat and still no LTE using Simple Mobile. It must be just my phone! Guess they are not build equally!
Try everything I know how to no success and then I flash the T-Mobile stock Lollipop and LTE connected, Wow. Stupid AT&T have to remove the network type selector from us. It available to international G2 as well."
Is it safe to flash Tmobile stock ?
Hi every one
Recently i bought an unlocked AT&T LG g3 but when i tried to conect with it give me juste EDGE so i just can connect with 2g .... My sim card work normaly with other phones i rooted my lg g3 and tried with buildprop but i didnt solve the problem so help me plz
Nasro.44 said:
Hi every one
Recently i bought an unlocked AT&T LG g3 but when i tried to conect with it give me juste EDGE so i just can connect with 2g .... My sim card work normaly with other phones i rooted my lg g3 and tried with buildprop but i didnt solve the problem so help me plz
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Click to collapse
Did you input your carriers correct apn ?
If so maybe it doesn't support the band of your carriers 3G/4G
Sent from my iPhone using Tapatalk
I enterred correct apns . i think thé problem is i cant choose preferred network wcdma or lte i tried with the hidden menu 3845 # *850 # but i didnt find it i tried with build prop but nothing change
you need to rewrite qcn from a working phone backup. you will need qpst to restore qcn. if you need a qcn backup. let me know i will attach here.
instructor2 said:
you need to rewrite qcn from a working phone backup. you will need qpst to restore qcn. if you need a qcn backup. let me know i will attach here.
Click to expand...
Click to collapse
i have same issue .. try all the method same problem .. 2g
can u please share your QNC file i'll test .
thanks
i have same issue .. try all the method same problem .. 2g
can u please share your QNC file i'll test .
Click to expand...
Click to collapse
i can send you one qcn but pls beware it will change your imei unless you restore your original imei with some box after restoring that qcn
instructor2 said:
i can send you one qcn but pls beware it will change your imei unless you restore your original imei with some box after restoring that qcn
Click to expand...
Click to collapse
Hi,
i have fix my phone i have reading qnc from working phone and write phone imei has been changed
then i restore back the original same imei using octopus box LG
thanks anyways .
Hi,
i have fix my phone i have reading qnc from working phone and write phone imei has been changed
then i restore back the original same imei using octopus box LG
thanks anyways .
Click to expand...
Click to collapse
thats good to hear you solved your problem.
i cant use 3g on my d850, 4g and 2g works flawlessly but no 3g, in my country, all the networks support 2100mhz frequency band
anyone can help provide me a working D838 QCN ?
i was accidently changing the 3G bands. but it cant be reverted.
if any one can give me your qcn backup ( you may delete your esn /imei value, i dont need it) i just need the network config inside the qcn.
i will give $10 via paypal to anyone who would help me for this.
i've restored my imei and esn succesfully, but i only get 4G full bar and 3G on some spot... compared to another phone, i should have a 3G signal on where i should be. but i cant connect/register to it. it says, current network is disabled.
anyone have an idea ?
LG D838 QCN file needed
Please I have issues with mine too (LG D838 32g). When I put it to 3g/4g mode, I get no network reception at all but when I switch to 2g, I get reception....please I need the QCN file if you were able to get it or point me in the right direction. Thanks
Hi everyone!
I have a Note 20 Ultra (N985F) Exynos variant.
My mom bought it for me without knowing it is a live demo unit. When she bought the phone it was working (network and data) but it was on Android 10. I started getting suspicions when i tried to update and it said "failed to register". I wanted to check the imei codes on the back and there's when i found out it is a LDU. I flashed Dr.Ketan's Android 11 ROM and i lost all network functions and when i try to search for network it says "Error while searching for network" so i flashed a stock Android 11 firmware from SamMobile but the issue still persists. I think i f****d up the EFS, don't know yet. I didn't have the mobile data toggle in the quick settings panel but after deleting the files in the EFS folder it got back. I have a little clue of what's happening here but i don't know how to solve it. When dialing *#0011# the imei status is "NG". Don't know if Chimera tool or Z3X will solve it by payching imei certificate (i don't have a license for those programs so that's why i'm asking before buying one). Will flashing pit file solve my problem? Will flashing a combination rom fix the issue? If not, how can i solve it? (P.S: wifi calling works, but i don't have any other type of cellular network)
Mate, the Nore 20 ultra is model number SM-N986B. The fact yours is 965 is the reason you aren't getting updates...
Unfortunately, short of unlocking bootloader (and even that is not assured), you can't just flash to a normal stock rom.
Never mind, i got it fixed by @hainguyenthao. I was skeptical at first but he really helped me. Kudos to you mate!
I have a network issue G780F please @hainguyenthao
Fixed by @hainguyenthao
LordLink said:
Fixed by @hainguyenthao
Click to expand...
Click to collapse
Hiw did you do it? Can you please share the method as the account tagged is currently disabled!