Finding true model of a refurbish - G3 Q&A, Help & Troubleshooting

Hello,
I have a refurbish LG G3 phone ... If I am looking system information or checking IMEI, or checking behind bettery, it is a D850. But ... if I am looking https://www.imeipro.info/, the serial number is not the one I can find using software that are showing serial number or on device list on ADB ...
So I was wondering, is it possible that when they 'clean' the phone for refurbish, they change things and it is not a real D850 ? Something can explain the difference between system information that is saying D850 and serial number that is not the same on imei checker ?
I try to install TWRP using D850 image but it is not working ... but maybe it is not working because of refurbish phone ?

Related

Corrupted MEID and ESN on LG G4 H815T, Need help to restore

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

After Unbrick LG G3, sim is switching between detection and undetection

Hi,
Have a strange situation with my device LG G3 D855 32G.
The device keeps on loosing connection to the sim card. In the hidden menu, when I run a basic test I see "Usim - Pass" and then switched to "Fail" back and forth.
I don't get a message that there is no sim card.
This started couple of days ago, my device crashed during Android version update and was bricked (with no download mode).
I followed this thread below after downloading LGD855AT-V10e-EUR-32G.zip (tot file).
[GUIDE][FIX][DISCUSSION] LG G3 Hard Brick Recovery.
I managed to get a download mode only after restoring also Cache, System, Userdata.
Then I used LGUP to install D85530B_Global.kdz (Marshmallow).
Anyway, now the device is installed and working but there is the sim card issue.
During the unbrick process I noticed that the Main Board is D850 while the sticker is D855 (I purchased it from an Amazon seller as new).
Also, the retail box of the device show IMEI and S/N which in a look at the internet doesn't fit but the android menu show me the IMEI on the box.
Does it mean it is refurbished?
Can it be possible to install D850 and Forge the IMEI so it will look like D855?
Can it be that the device is looked after the update and there is a SIM verification issue?
In my differential diagnosis:
1. One of the partitions didn't write well when using the BoardDiag_v2.99a tool and then LGUP.
2. SIM socket issue. which not correlate to the fact that the device is new and SIM appears and disappears constantly, even with out moving the device.
3. There is a conflict of board and android version which cause a sim verification issue.
Your input will be welcome (Technical terms are welcome)
Thank you all in advance.
Insert a 4-ply paper with SIM, for me works!
You have a faulty modem installed on your device which is giving you problems.
Try flashing Modem 21C, everything works perfectly with it for me.
Use lg g3 test point on board and force it to go in qhsusb 9008 mode.
Then use smart boot diag v1.3 and its AP_CHIP folder and select d850 model in that app and select yes and yes and yes.
It will booting. Now flash last d850 rom for your country and remember to use flash tool 2014 and cse mode. And flash the rom twice.
It will be fixed.

LG G4 Flash Stock ROM Problem

I have LG G4 and I flashed (upgraded) it through LGUP from 5.1 to 6.0 a couple of days back. This is what has happened.
Before Flashing:
Hardware - LG-H815T
Android - 5.1
Software - H81510p
Baseband - MPSS.BO.2.5.c3-00072-M8992FAAAANAZM-1
Kernel - 3.10.49
Build Number - LMY47D
IMEI - 357766060879504
After Flashing:
Hardware - LG-H818
Android - 6.0
Software - V20a-OPT2-HQ
Baseband - MPSS.BO.2.5.c3-00101-M8992FAAAANAZM-1
Kernel - 3.10.84
Build Number - MRA58K
IMEI - Same
This is what the problems are:
1. The phone turns on but the screen stays black all the time. There is one way to turn on the screen and that is by removing the battery and plugging it to the usb cable and when the screen blinks for the missing battery indication, holding down the power button and inserting the battery. This way the phone turns on as if it has no issues.
2. The internal storage is showing 22gb instead of 32gb.
3. I am unable to flash (upgrade or refurbish) the phone through LG Flash Tool 2014, LGUP and LG Bridge. All softwares partially work through the process and according to my analysis give an error at the point after establishing connection with the mobile when its the time to access the internal storage for writing system files on the phone's storage.
4. I am unable to conclude the model number of the phone because before flashing it was H815T, after flashing it is H818 and when I connect it to LG Bridge, it shows the connected phone as F500K.
5. I tried to unlock the bootloader of the phone by visiting the LG Developer site and when I came down to filling in the information of the phone like IMEI and Device ID derived from the instructions outlined, it does not accept H815 as the model number against the Device ID of my phone and secondly does not list H818 and F500K in the dropdown options.
I don't know what wrong have I done in my life to end up in a situation like this???
Hello there,
To solve this you need to edit a H815 tot file(if u dont have one download here https://androidfilehost.com/?fid=24723757092307739) in a Hex editor(here a portable version of HxD wich i prefer http://mh-nexus.de/downloads/HxDde.zip, just download and run).
Open .tot in HxD, then you CTRL+F for "xVLG-H815" and replace H815 or whatever your tot have along with 'xVLG' to the model your phone is being recognized as(F500K in your case).
Almost done, just save and flash in LGUP using refurbish option

Qpst lg v30 h932

Hey
I want to run QPST and my phone is detected in the COM in device manager (also at the top of device manager).
But when i add the port in QPST it detects 'No phone' but i can still add the port.
Making a backup etc in QPST doesn't work because of this.
Anyone with more knowledge who knows what i have to do?
I installed the universal LG drivers en did the commands (adb shell, su and setprop sys.usb.config diag,adb).
Thanks in advance!
The 3 images are screenshots of the windows.
Update
I got to the part were you can enter your IMEI but the phone couldn't write the IMEI.
THere was a long eroor message and this was part of it: 'reason other than nvm was full'
Hi, disconnect internet, turn off all security like firewall and virus checker and try again.
youtube video shows device like image attached.
Otherwise no idea
MrParis2 said:
I got to the part were you can enter your IMEI but the phone couldn't write the IMEI.
THere was a long eroor message and this was part of it: 'reason other than nvm was full'
Click to expand...
Click to collapse
I have the same problem, I'm stuck on that error message when trying to repair IMEI on my LG V30 US998, did you find any solution?
Hierwend said:
I have the same problem, I'm stuck on that error message when trying to repair IMEI on my LG V30 US998, did you find any solution?
Click to expand...
Click to collapse
Hey guys, I hate to be the bearer of bad news but even for legitimate purposes, people really hate when you talk about repairing IMEIs here. It's questionably illegal even if you're "repairing" it. If you're cloning it, it's super federally illegal.
I'd word it in a way of "halp, somehow I zeroed my IMEI and I need to write back the exact same IMEI and definitely not some other IMEI on a phone I have because I bought a bad IMEI phone on eBay". Even then I think mods would raise a stink.
Hierwend said:
I have the same problem, I'm stuck on that error message when trying to repair IMEI on my LG V30 US998, did you find any solution?
Click to expand...
Click to collapse
Nope

Missing serial number

Saw an LG G7 with the serial number blank/unpopulated. What does that mean and can it be restored? IMEI and everything else looks normal.
mr3p said:
Saw an LG G7 with the serial number blank/unpopulated. What does that mean and can it be restored? IMEI and everything else looks normal.
Click to expand...
Click to collapse
All of that is nvram data, it is all stored in the efs partition.
Serial number is not really important as its there for verifying when needed. IMEI is needed to connect to a network.
You can always use a app like cdma workshop to fill the serial number back in if its still on the case.
Thanks for the tip. Any other option for reflashing serial number? Can't seem to find a current version of CDMA Workshop and not sure if that would work with G7.
In order not to create a new topic, I will write here. I have the same problem, the erased serial number.
Is there a real working way that will restore the serial number? Thank.

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