Develop Bugs

Invalid sim card error after flashing E975 kdz

I successfully (??) flashed my F180k to E975K kdz/
everything seems ok, but I get Invalid sim error, and obviously cannot connect/
I tried to unlock the phone using freegee, running TWRP, with no success. should i run CWM 6.0.3.0?
Any other ideas why the phone is locked or how to unlock it?
thanks,

invalid sim got nothing to do with lock bootloader and recovery and freegee

the phone is permanently locked (!!) help...
Any ideas how to bypass it?

if it was working fine before try the same stock f180 firmware and see if that works, have no idea about sim unlocking on optimus G. search for that.

gilsh4321 said:
Any ideas how to bypass it?
Click to expand...
Click to collapse
you need to flash f180 baseband, 1st check your f180 S or K or L then flash baseband made for your variant

thanks, I will try
sunyakram said:
you need to flash f180 baseband, 1st check your f180 S or K or L then flash baseband made for your variant
Click to expand...
Click to collapse
BTW, I was following your (great) instructions. probably did something wrong while trying to flash the baseband. I will retry.

gilsh4321 said:
BTW, I was following your (great) instructions. probably did something wrong while trying to flash the baseband. I will retry.
Click to expand...
Click to collapse
sorry if i was wrong,but many people including me use the method and have no worry,the problem only came when we make a lil mistake,what your model? f180s/f180l/f180k?

I was convertiong LG F180k to E975
sunyakram said:
sorry if i was wrong,but many people including me use the method and have no worry,the problem only came when we make a lil mistake,what your model? f180s/f180l/f180k?
Click to expand...
Click to collapse
your guide is really great, I probably did something wrong. how can I tell if I am running the right baseband?
the baseband currently installed on my phone is APQ8064/MDM9x15M.
do you have another baseban file other than what you've linked to on your guide?
many thanks!

gilsh4321 said:
your guide is really great, I probably did something wrong. how can I tell if I am running the right baseband?
the baseband currently installed on my phone is APQ8064/MDM9x15M.
do you have another baseban file other than what you've linked to on your guide?
many thanks!
Click to expand...
Click to collapse
i dsnt post any guide on here or any where,okay?
here are the links
f180s
f180k
f180l

I flashed the baseband, but it is still permanently locked.
Any ideas as to how can it be unlocked? maybe if I will use other EFS backup?
will it be solved if I will go back to to the original KDZ?

gilsh4321 said:
Any ideas as to how can it be unlocked? maybe if I will use other EFS backup?
will it be solved if I will go back to to the original KDZ?
Click to expand...
Click to collapse
have you backed up your efs before installing kdz? it may help you for working sim cards.
but if you revert back to orignal kdz baseband is a issue here again

Did u hard reset after flashing kdz???
Sent from my Optimus G using Tapatalk

I have the same problem
atifsh said:
if it was working fine before try the same stock f180 firmware and see if that works, have no idea about sim unlocking on optimus G. search for that.
Click to expand...
Click to collapse
I have the same problem and when I turn it back to stock F180K firmware it recognizes any sim very well
---------- Post added at 12:04 PM ---------- Previous post was at 11:57 AM ----------
sunyakram said:
you need to flash f180 baseband, 1st check your f180 S or K or L then flash baseband made for your variant
Click to expand...
Click to collapse
This did not solve the problem.
The baseband fix seems to only fix the reception issues of the phone so that it can pick up the signal.
The problem I have is about the phone not recognizing the sim card. It will only recognize it when I go back to the stock F180K rom not the E975 rom.
By the way, all F180 phones are pre-unlocked by Korean law.

jung901 said:
I have the same problem and when I turn it back to stock F180K firmware it recognizes any sim very well
---------- Post added at 12:04 PM ---------- Previous post was at 11:57 AM ----------
This did not solve the problem.
The baseband fix seems to only fix the reception issues of the phone so that it can pick up the signal.
The problem I have is about the phone not recognizing the sim card. It will only recognize it when I go back to the stock F180K rom not the E975 rom.
By the way, all F180 phones are pre-unlocked by Korean law.
Click to expand...
Click to collapse
can you please help me?
even if i go back to stock f180k, i still can't get a signal
is it my sim?
i already flash the baseband but still no use

call me
coldmalice said:
can you please help me?
even if i go back to stock f180k, i still can't get a signal
is it my sim?
i already flash the baseband but still no use
Click to expand...
Click to collapse
You do not need to touch the baseband if you already flashed the F180K rom.
The sim should be recognized and baseband should be the right one already.
If you need further info add jseo to kakao talk and send me a message and we can talk real time. I'm in Seoul

jung901 said:
You do not need to touch the baseband if you already flashed the F180K rom.
The sim should be recognized and baseband should be the right one already.
If you need further info add jseo to kakao talk and send me a message and we can talk real time. I'm in Seoul
Click to expand...
Click to collapse
Can you please tell me what to do?

Invalid sim card after converting E975
neaznc021 said:
Can you please tell me what to do?
Click to expand...
Click to collapse
Hi Guys,
I need expert help here , it looks i brick my handset while i was trying to convert it into E975 by following the instruction
Guide
Regardless of which firmware you are currently running on your F180, you will need to download and switch to the corresponding one from the list below:
F180S : F180S20B_00.kdz
F180K : F180K20B_00.kdz
F180L : F180L20H_00.kdz
Tip: You can find your phone’s model by going to ‘Settings > About > Phone identity’ in Android.
Warning: Make sure your phone’s battery is at least charged 80%. Don’t proceed otherwise as LG Optimus G comes with non-removable battery and thus you won’t be able to easily swap the battery if it dies in the middle of the process.
It is mandatory that you factory reset your phone before proceeding. For doing so, go to ‘Settings > Privacy > Factory data reset’. Please keep in mind that doing so will wipe your phone including contacts, messages, mails, applications and all the data on your phone’s internal storage. Your phone will reboot twice. Let it boot after factory reset. Once you are on the language selection screen, power off your phone
Press and hold down ‘Volume Up’ + ‘Volume Down’ and while inserting USB cable in to the phone. This will get you to S/W download mode on LG F180.
Now you need to flash the firmware you downloaded earlier. Please refer to the guide here:
How to: Download and Install KDZ LG firmware – All Android models
Once the KDZ firmware is successfully flashed, your phone will reboot automatically. Once it fully boots up, go through the setup procedure and again factory reset it as you already did once.
Once you are on the language selection screen, power off your phone
Once again, put your phone in download mode
For converting your phone to E975, we’ll be flashing this E975 Hong Kong KDZ:
Follow the same procedure for flashing KDZ as you did earlier.
Once the KDZ flash is successful, go through the set-up procedure. Now go to ‘Settings > Storage’ and make sure your internal storage is being listed there. If it shows “0.00 GB” there, don’t panic. Power off your phone. Once completely off, press and hold down ‘Volume Down’ + ‘Power’ buttons until the phone displays a hard reset screen. Release ‘Volume Down’ and press ‘Power’ twice for resetting your phone.
Your phone will reboot once again and your phone’s internal storage will be back to normal.
Now you need to root your phone. Please refer to our LG Optimus G universal rooting guide here:
Universal root for LG Optimus G – Any firmware
Once you are done with rooting process, make sure you reboot your phone at least once if it doesn’t reboot automatically.
Now we will be flashing LG F180 baseband. Download your corresponding baseband backup from the list below:
F180S Baseband
F180K Baseband
F180L Baseband
Unzip the downloaded archive and you will find a batch file named ‘modem-flash’ inside it. Make sure ‘USB Debugging’ is enabled on your phone and your phone is in ‘Charge only’ mode while connected to the PC. Run the ‘modem-flash’ batch file.
Keep an eye on your phone screen as you will need to tap the grant permission button on SuperSU pop-up. If you miss the pop-up as it expires after 10 sec, run ‘modem-flash’ batch file again.
Once the baseband has been flashed successfully, reboot your phone
Congratulations! You have just converted LG F180 to LG E975.
it converted successfully but when i insert sim in it says invalid sim card , i have updated the base band given in above link but no luck then i tried to flash the original rom with many version for this set same thing again ,no signal no network .i think i mess up with the orginal modem without taking any kind of backup.
I need expert advise here how to fix it and which kdz to use to fix it.
looking forward for your reply.
Thanks,

@ranadawood: Flash original kdz file for your respective model to get back network ...
e.g F180L/k or S one

umair928 said:
@ranadawood: Flash original kdz file for your respective model to get back network ...
e.g F180L/k or S one
Click to expand...
Click to collapse
I already tried but no luck i tried F180K20O but no luck ,trying F180K30b_00 giving me extract erro.
Please let me know which could be the original rom for my phone and?
Thanks

ranadawood said:
I already tried but no luck i tried F180K20O but no luck ,trying F180K30b_00 giving me extract erro.
Please let me know which could be the original rom for my phone and?
Thanks
Click to expand...
Click to collapse
Follow this guide, This has also many fix included...
http://forum.xda-developers.com/showthread.php?t=2625044
and if none of above work for you than try to flash kdz with cdma mode rather than 3gqt and start kdz flashing by selecting CSE web upgrade test

LG G3 Network Unlocked No Celluar

Hey guys i need help i did use my simcard on lollipop 5.0.1 after i did upgraded my phone 6.0 marshmallow and now my simcard not working no celluar only searching.
I think its have simlock problem from operator this phone from Hong Kong when i enter sim lock menu its giving error " This phone is permanently locked and can not be opened."
2945#*855# all menu buttons same giving error " This phone is permanently locked and can not be opened. "
How can i active my phone pls help me bro's

Are you flashing MM from kdz or twrp ?

fOxunO said:
Are you flashing MM from kdz or twrp ?
Click to expand...
Click to collapse
yes i did tried kdz and twrp all same im from Turkey but this phone from HK phone saw my simcard and i entered my sim password but this phone can not find carrier only searching.
i installed now cloudly 2.5 rom still same. :/

LG G3 SIM unlock problem

My LG G3 is running on stock Android 6 Marshmallow, version V30b-EUR-XX, using custom recovery (TWRP), rooted.
The phone is network locked to my carrier. I got a network unlock code (NCK), however, when I enter the unlock menu (2945#*855#) and go to network unlock option, enter the code I get a "SIM network unlock request unsuccessful" error and the attempt counter does NOT go up (always staying on 1/10).
From that I concluded that the phone isn't even trying to unlock the SIM.
Anyone got an idea on how to proceed?

lg g3
Palaryel said:
My LG G3 is running on stock Android 6 Marshmallow, version V30b-EUR-XX, using custom recovery (TWRP), rooted.
The phone is network locked to my carrier. I got a network unlock code (NCK), however, when I enter the unlock menu (2945#*855#) and go to network unlock option, enter the code I get a "SIM network unlock request unsuccessful" error and the attempt counter does NOT go up (always staying on 1/10).
From that I concluded that the phone isn't even trying to unlock the SIM.
Anyone got an idea on how to proceed?
Click to expand...
Click to collapse
whta is the exact model no of ur lg g3

kalpesh patil said:
whta is the exact model no of ur lg g3
Click to expand...
Click to collapse
LG-D855

lg g3
Palaryel said:
LG-D855
Click to expand...
Click to collapse
before updating 6.0 network was working or not??
or it was locked before purchase

kalpesh patil said:
before updating 6.0 network was working or not??
or it was locked before purchase
Click to expand...
Click to collapse
Bought it on contract from carrier, was locked when I got it. Note that I got my unlock code from the carrier, its valid. I also went ahead a bought a key online from a website selling unlock keys. Got the same key as the one from carrier (wanted to confirm the key is indeed the correct one).

lg g3
Palaryel said:
Bought it on contract from carrier, was locked when I got it.
Click to expand...
Click to collapse
bro i will solve ur issue through teamviewer just msg me on my whatsapp no +917744894155

Msging you now
Sent from my LG-D855 using Tapatalk

Solved issue myself now, reflashed clean stock .kdz, it worked after (the issue was probably the custom recovery or the permissive kernel I think)!

[SOLVED] This phone is permanently locked and cannot be unlocked

As the title says my phone is hard sim locked.. I am not hopeful but i will try my luck with asking here..
Is there anyone faced this problem and solved it ?
I dial 2945 #*855# and all of the options are not possible to enter any IMEI. all of the says "This phone is permanently locked and cannot be unlocked"
I tried putting a sim card different from my provider but it doesn't ask any unlock code to enter and 2945 #*855# is the same..
It happened after flashing a custom rom and it f**** my phone. Also i can't afford to any other phone, i am a student
So I would be glad if anyone can help me to resolve my issue. I believe I will never forget him/her.

trd3v3lop said:
As the title says my phone is hard sim locked.. I am not hopeful but i will try my luck with asking here..
Is there anyone faced this problem and solved it ?
I dial 2945 #*855# and all of the options are not possible to enter any IMEI. all of the says "This phone is permanently locked and cannot be unlocked"
I tried putting a sim card different from my provider but it doesn't ask any unlock code to enter and 2945 #*855# is the same..
It happened after flashing a custom rom and it f**** my phone. Also i can't afford to any other phone, i am a student
So I would be glad if anyone can help me to resolve my issue. I believe I will never forget him/her.
Click to expand...
Click to collapse
Losing the IMEI code is the worst thing that may happen to a modder.
Try to connect device to PC and follow this procedure to put it in stock conditions.
However I'm much pessimistic about the recovering of IMEI code, try and hope to solve the issue.

Simone98RC said:
Losing the IMEI code is the worst thing that may happen to a modder.
Try to connect device to PC and follow this procedure to put it in stock conditions.
However I'm much pessimistic about the recovering of IMEI code, try and hope to solve the issue.
Click to expand...
Click to collapse
I did that process to but no luck for me.
But thanks to @faurfaur he recovered my imei by connecting with teamviewer and it is done like in 10 minutes :good: If anyone has this problem contact him

trd3v3lop said:
I did that process to but no luck for me.
But thanks to @faurfaur he recovered my imei by connecting with teamviewer and it is done like in 10 minutes :good: If anyone has this problem contact him
Click to expand...
Click to collapse
I'm happy for you ?

Simone98RC said:
I'm happy for you ?
Click to expand...
Click to collapse
tank you very much

i have issue Permanent Lock , can you help how to fix it ?

@mohsin-* I have the same problem and can't get any help from my carrier or LG. Did you solve the issue perhaps? Thanks.

I have the same problem plz help ??
I have lg g3 d728 when check my imei no it shows only 1 imei no but the phone is dual sim and it says "permanently locked cannot be unlocked" plz help me ?

Got the same issue with my G4 and unfortunately @faurfaur account is disabled. Anyone else?

I have lg g3 d852G when check my imei no it shows only 1 imei no but the phone is dual sim and it says "permanently locked cannot be unlocked" plz help me

trd3v3lop said:
I did that process to but no luck for me.
But thanks to @faurfaur he recovered my imei by connecting with teamviewer and it is done like in 10 minutes :good: If anyone has this problem contact him
Click to expand...
Click to collapse
How to contact him..?? I have same problem

hello i am having same problem with my lg ls660 . no network, pls i need help

I have same issu on my lg v60 v600vm. Imei and finger print is gone. Can any one help me to solve it. Suffering for 3 months

Camera &calling app not working on my g4 (Help)

Hello,
I have a lg g4 815h bought from ebay India and using in India for a few months back...it was working fine till yesterday. A pop up was coming for a system update since 1 month so I decided to perform the update ...so I allowed the update but as soon the phone rebooted and the android sign came it showed error.
After 5 mins nothing happned so i restarted the device it booted but since then the camera is is not working says unfortunately camera has stopped ,even my phone call pick up screen is not showing when there is a call to answer...
I can call some one but cannot end the call due to no calling screen is appearing.
I did hard reset but the situation is same...
Should I flash using lg flash tool ?any version works on windows xp?I only have a windows xp Pc...
Or please provide a solution which can be performed using recovery like twrp...
Please help...
Thanks in advance

If any advices to flash my device using twrp please also suggest me a simple and stable rom
file...
Thanks
Kind Regards

one more problem I have Identified on my phone ,
I can see the hardware serial no shows LGLS991852e50ae which can be a sprint phone but the software installed shows that the phone's model is H815...
what to do...
please help

ur phone is REFURBISED?

karan5567 said:
one more problem I have Identified on my phone ,
I can see the hardware serial no shows LGLS991852e50ae which can be a sprint phone but the software installed shows that the phone's model is H815...
what to do...
please help
Click to expand...
Click to collapse
open phone . take out mother board .. and read plaque model. if sprint flash sprint KDZ and LGUP. if H815 then do that .. thats the only way to be sure.

U have a refurbished model.Go to nearest mobile repair shop & take out your motherboard to see what model no is written on this.Then flash a rom accoringly. Don't flash any other rom just by assuming else you will brick your device.

Yes my phone is refurbished...
But how to flash the rom?
If I found it to be a sprint version and flash a sprint rom ...it will be locked?I am using phone in India...

Any chance to root the phone and install twrp?
Then flash a custom rom?
Please help...

karan5567 said:
Yes my phone is refurbished...
But how to flash the rom?
If I found it to be a sprint version and flash a sprint rom ...it will be locked?I am using phone in India...
Click to expand...
Click to collapse
Most probably it will be locked cause most higher Android versions LG has blocked rooting or unlocking..But you can always browse few threads.
Mine is also a refurbished model with F500L motherboard,LS911 body & had H815 global rom installed out of the box.I am currently on F500L Nougat locked & unrooted..I have tried almost every method.It failed to root & even to enter fast boot.
If you get your proper model no on motherboard then just flash the rom with ToT flasher in download mode with respective DLL.

asingha94 said:
Most probably it will be locked cause most higher Android versions LG has blocked rooting or unlocking..But you can always browse few threads.
Mine is also a refurbished model with F500L motherboard,LS911 body & had H815 global rom installed out of the box.I am currently on F500L Nougat locked & unrooted..I have tried almost every method.It failed to root & even to enter fast boot.
If you get your proper model no on motherboard then just flash the rom with ToT flasher in download mode with respective DLL.
Click to expand...
Click to collapse
Thanks for your reply...
Your network is locked?
You cant unlock it?
Can we degrade our Os to lollipop to get root?

Even I cant turn on the Enable OEM unlock under the developer mode...
Any more advices?

Please help.....

I have tried almost all h815 ans ls991 roms with all flashing methods but still unable to successfully flash my device...lg tot flash tool always show dl error after 4 to 6 percent of flashing...
Please help

Any idea's?

Pick the phone, and send it to the place where you bought it. If you have warranty the repair is free, if not, then you must pay sadly.

Still no solution, I even cannot enable OEM unlock under developer options...
It automatically disables it...
Please help

Just experienced this issue after changing sim card... Call and Camera stopped working over and over again.
How I solved it: Go to the specific app that is causing you trouble, and clear cache/files (too bad I only found this after 3 factory resets).

Maybe it will help ... LG G4 CAM