Hi all,
I restored /patched wrong qcn file to my LG G3 D852 that I found online. now my phone doesn't register to network.
its look like network keep resetting. I do have backup of my original file but when I tried to restore gives me error
"Received an invalid command from the phone." please help me to filx this error.
update1:
finally I was able to change IMEI to 0, I replaced following field in 12.4.gold.orj.qcn file
fields
'starting from 1A48 to 1A50' replaced with 00
starting 1AD88 to 1AD90' replaced with 00
now my IMEI is 00, but when I tried to replace above field with my original imei file didn't restore gives same error 'phone return unknown command'
do I need to also update serial # field, does any one know which filed I replace for serial #?
I found above imei filed by converting imei to hex format and searched in qcn file. since I don't know serial # of the phone (12.4.gold.orj.qcn file came from)
Related
Hi everyone,
I guess many of you are in huge pain with the KU990 new version, that is, the ones that cannot be unlocked using lg3g or mtty methods.
Here I would like to describe everything I tried so far and the current status I am locked in today.
My biggest mistake was to not backup my phone (the famous .nv2 file) at the very beginning ! I strongly advise people who wish to modify their phone somehow to first backup with LGMDP !! Otherwise you may end just like me...
I started with a SFR (VDF FRANCE) locked phone and, as I did not have the SFR sim card at that time, I tried to unlock it with both the lg3g and the mtty methods. Unfortunately the unlocking procedures did not work at all, although I ensure I tried everything. I finally read somewhere that the newest KU990 had a supplementary protection that could not be overcome.
In parallel I was able to manage to change the firmware to OPEN or VDF (EURO) versions ranging from v10a to v10j (using LGMDP). So it seems that there is no big issue there.
However at some point in the process (I guess the unlocking), my IMEI was changed. And my phone started to ask me to "Insert USIM card" or to refer to "Invalid USIM card" depending on if a sim was in or not. I understood that USIM was referring to international sim cards so I tried to reinstall VDF firmwares with VDF .nv2 and VDF Flex backups (still not mine), but this made my phone unusable as it displayed a nice yellow screen and the fact that some wallpaper file could not be found. Still I could solve this problem by I changing back to OPEN firmwares and .nv2.
Now I recovered the original sim card from SFR and was able to obtain the unlock code from their hotline. But as my IMEI has been changed, the unlock code fails now.
Thus I tried to reset or to change my IMEI back to what is written below the battery using either lg3g, mtty, QPST or NVEditor. This also leaded nowhere as even reading the IMEI with lg3g and mtty failed and as QPST and NVEditor revealed that the NV_UE_IMEI_I parameter was protected (NV_READONLY_S). I tried many different things with these tools but it does not seem possible to break the protection.
I guess my only chance now would be to insert my old IMEI into an existing .nv2 file. I have found some "NV2 - QCN TOOLS V1.4" that can do this but only on the KU20.
Does anyone has a tool allowing to insert a new IMEI in a .nv2 ?
OR
Did anyone go through the same difficulties and did finally find a solution ?
any help will be greatly appreciated )
please do not ask me how i did this or that for the moment, if I can solve my problem I will certainly return the favor to all of you later on.
Hello,
Have you tested the tools for the KS20, because the. NV2 is certainly quite similar.
@+
Thank you for your suggestion.
I tried the tool but first it returns a NV2 Status Error when I load any .nv2 file, second the IMEI is forced into 357323-01-XXXXXX whereas both my original and current IMEIs start with 353638-02, and third, although the tool indeed creates the file (I chose "Branded nv2"), the backup fails (LGMDP reports four NV ITEMs with NV_BADPARM_S with no more information) and I end up in Emergency mode.
A KU990 version of the tool might do the trick, if it is possible to specify the full IMEI of course. I can send my current nv2 file(s) if it can help anyone...
hi,
Can you send me by PM your backup NV2, the original IMEI and IMEI on your phone now.
By.
bl40
hello.sorry for my bad english.
a have a big problem with my lg bl40.
i flash the gsm with new rom , but i not make back up of the nv2 file.
download this file from internet but with different imei.
what can i du, pleas help my.
A valid nv2
Please can someone send a valid nv2 for lg P500, i`m from romania. many thanks
hi,
uses the search function it works fine
http://forum.xda-developers.com/showpost.php?p=22671293&postcount=52
hellp
pleace send IMIE code (nv2) for iran
my email [email protected]
tank you
I have the Tmobile Galaxy Note 2 SGH-T889 ( stock rom and rooted ) My original phone has water damage and not working, I bought a main-board on ebay but the IMEI got blacklisted and I didn't know until I replaced the board.
I want to replace the IMEI from the water damage phone into my repaired phone.
I made a backup the file or NV data using the software " NV-items_reader_writer tool " program
I edit the IMEI number in the line 00550 in the backup that I got from the "NV reader/writer tool"
Than I write back my NV data with the new IMEI number back on the phone using ( EFS/QSP/Nv-items_reader_writer), the program says the writing was successful, but the IMEI doesn't change after I reboot the phone...
Why this is happening ? Is there another secret EFS folder in the phone that keeps writing back the old IMEI into the board..
Is there another safe EFS folder located were the phone keeps geting information to rewrite the old number back in the phone..
Or there is something missing that I don't know ,.. why the "NV-items_reader_writer tool" can not save the new NV data in the phone.
Could you help me, please? The old phone cost me about 600$ and I drooped in the rain water , than I bought a new board that cost me over 100$ .. and now Im stock with a pice of junk .. Please help me...
Best regards,
Cesar
=======
Those are the steps I made during the attempt of fixing the IMEI :
1= Download NV-Items_Reader_Writer_Tool.zip and extract the zip PC
2= Installed SAMSUNG DRIVERS on your computer.
3= Enable USB DEBUGGING on your phone.
4=Dial *#7284# on your phone’s dialer.
5= Select Qualcomm USB Settings and then check RNDIS + DM + MODEM and press OK button. (( Im supposed to check RMNET + DM+ MODEM, but I dont have that option in my model of phone))
6=Now connect your phone to computer using USB cable and then launch NV-items_reader_writer.exe as administrator.
7= Save a backup of the file in my PC and open it with NotePad text editor.
8=Go to the line 00550 and edit the IMEI number and replace with the good number from the water damage phone.
9=Separate your IMEI number into blocks of two digits, leaving the first digit alone. Suppose your phone’s IMEI is35516705558781901, separate it like this: 3 55 16 70 55 58 78 19 01
Now add “A” after the first digit, and reverse the sequence of the two numbers in each block of 2 digits. Add 08 in the beginning of the IMEI. Here is an example: 08 3A 55 61 07 55 85 87 91 10
Having done this, replace the first nine values in the NV block with the converted IMEI.
Click on Write button on the NV-items_reader_writer tool.
When it’s done, Im supposed to disconnect device and reboot it.
My new phone’s IMEI should be there. BUT IS NOT.. It keeps showing the old IMEI number that I dont need.. !!
Please Help Me..
Hi there,
Need a help of someone good at working with G4 unlocking. Here is the story of whole problem.
I bought an LG G4 from my local market. At the time of purchase it was rooted but not updated, so I thought to update it. I tried to flash it with Marshmallow kdz available at storage cow with H81520B_00, but may be I flashed my phone with wrong kdz file (as I was not aware of matter at that moment) which was not supported by my phone's model as my phone was H815T (HKG version). The flashing of wrong KDZ file changed the ESN, IMEI & MEID of the phone and replaced them with something that is blacklisted in international phone database. because of this reason now whenever I try connect my phone to the network with the sim installed, it doesnt show any connectivity and displays that service is disabled on the phone.
After this incident, I re-flashed my phone with correct kdz available for H815T model but the problem still persists.
Then in many forums I tried to find the solution to revert back my phone's ESN, IMEI & MEID back to the values printed on the back sticker of my phone pasted under the battery. Somehow I was successful to revert the IMEI of the phone back to original but I am unable to change the ESN and MEID values.
I have tried many ways. I tried to use EFS Explorer of QPST but in that, I found that the NV folder which includes the ESN and MEID values is locked and by applying all my efforts and searching everywhere, I am still unable to unlock this folder.
I tried DFS CDMA Tool, it shows my phone's info properly, but when I try to write the old values to my ESN and MEID areas, it says that the values have been written successfully, but when I try to read the values again to check whether they have really successfully written or not then the tool shows the previous corrupted values again.
I tried EFS Professional & CDMA workshop for the same reason and it too showed the same response as DFS.
I need a help from someone who can guide me that how can I unlock the NV folder of my phone and write the correct values of ESN and MEID of my phone back to it so that it can connect to the cellular network.
Apart from cellular network connectivity, all the functionality of the phone is perfectly fine.
Exactly same problem with my G4, only difference is that it connects to network and disconnects again and again. I am able to make/recieve call and sms when outdoors. Ut randomly drops signals even outdoors
Hello XDA!
I wanna share mini tutorial about repair ESN with QPST
1. Rooted
2. Diag Mode (for MM D855, connect as charging, dial *#546368#*855#, USB - Port Check Test ENABLE - Qmicm Set OK) will search the driver called CRC SERIAL PORT and you will see in Device Manager you LG G3 called QUALCOMM/ALCATEL DIAG and MODEM
3. Connect to QPST - Start Client - Software Download - Backup (Will be name as your ESN and format file will be called .qcn)
4. Format partition FSG, MODEMST1, and MODEM ST2 ( see this article http://www.androidbrick.com/qualcomm-snapdragon-imei-tamiri-ders-4-qualcomm-snapdragon-imei-repair/)
5. Now edit your broken qcn that containn 00000000 ESN with HEX editor
ESN LG G3 (D855)
QCN address (have 3 address)
1680-1603
31208-3120B
1C708-1C70B
How to know your ESN?
Go to this site http://www.meidconverter.com/
Put your MEID (imei that deleted last numbers 11111111111111"2")
you will get your ESN called "Pseudo Hex ESN" contain charater and number (8 digit)
and put them to your QCN that contain "Good Signal and Detect Sim"
example:
Pseudo Hex ESN 80C45910 put to hex in reverse 1059C480
Click to expand...
Click to collapse
6. Save your qcn, and restore it with QPST
7. DONE
note: for everybody who have backup qcn from your normal LG G3, please sent to me. i have 2 LG G3 that have problem that didn't detect SIM Card and Signal. I need qcn from normal LG G3 Verizon V985 and LG G3 D855.
Hope will help out who can't write ESN NV in around the world.
Thank you XDA.
Can you Help Me Sir Repair Imei Lg D855 MM. This my phone/Wa Number +62 858-5984-4973.
help
Hi, help me please: how can I do this operation:
”you will get your ESN called "Pseudo Hex ESN" contain charater and number (8 digit)
and put them to your QCN that contain "Good Signal and Detect Sim"
example:
Pseudo Hex ESN 80C45910 put to hex in reverse 1059C480”
how to edit qcn in hex editor. Thanks
Does anyone know if this will work with the galaxy s8?
Now my mi6 have a problem,although I search on google and find a website https://www.androidbrick.com/etiket/mi6-imei-repair/ .When I use dd if=/dev/zero...... and reboot my mi6. I found my phone imei not became 0 or null,I can not continue next step, Why I want to change my imei, because the restore is not mine,I want to change the qcn restore my imei. Who can help me?
Use Miui 8 for imei repair and just upload edited QCN, don't pay attention to imei not become 0