My Device turned to F400S - G3 Q&A, Help & Troubleshooting

So today, I just flash a custom rom which is for F400S, it was working nice but then I tried to root it, it wont boot, its stuck on LG logo.
But when I try to flash it with tot file, it says different model, mine is F400S.
Will flashing F400S File fix this ?

And what variant is your device originally?

DelBoy said:
And what variant is your device originally?
Click to expand...
Click to collapse
Its F400L.
I flashed a F400S and now it works

I went from F400K to F400S Only problem I have is the roaming settings, any change you still have the stock "T phone" apps? I removed them with titanium back, without making a backup first.... beginners mistake lol

Related

Trying to flash stock ROM using LG FlashTool, require D855K dll file.

I bricked my phone using CM13 and have followed this guide (open-freax.fr/guide-unbrick-your-lg-g3) . I'm at the point where I need to use LG FlashTool to flash the stock ROM. I always use D855 ROMs but this time LG FlashTool is giving me the error: Device Model is different! Check Phone or DLL! I bought my phone from Australia and my phone's model is D855K, although D855 ROMs have always worked on my phone in the past. If anyone knows where I can get the D855K dll, or perhaps a different method of returning to stock. I can access Download Mode if that helps.
SneakkyStevo said:
I bricked my phone using CM13 and have followed this guide (open-freax.fr/guide-unbrick-your-lg-g3) . I'm at the point where I need to use LG FlashTool to flash the stock ROM. I always use D855 ROMs but this time LG FlashTool is giving me the error: Device Model is different! Check Phone or DLL! I bought my phone from Australia and my phone's model is D855K, although D855 ROMs have always worked on my phone in the past. If anyone knows where I can get the D855K dll, or perhaps a different method of returning to stock. I can access Download Mode if that helps.
Click to expand...
Click to collapse
For stock rom you need to download the one for D855K otherwise it won't work
SneakkyStevo said:
I bricked my phone using CM13 and have followed this guide (open-freax.fr/guide-unbrick-your-lg-g3) . I'm at the point where I need to use LG FlashTool to flash the stock ROM. I always use D855 ROMs but this time LG FlashTool is giving me the error: Device Model is different! Check Phone or DLL! I bought my phone from Australia and my phone's model is D855K, although D855 ROMs have always worked on my phone in the past. If anyone knows where I can get the D855K dll, or perhaps a different method of returning to stock. I can access Download Mode if that helps.
Click to expand...
Click to collapse
check here: http://lg-phone-firmware.com/firmware-Lg+G3-Tutti-41.html
Just follow your link at your post.
You can used tot & dll file from D855 and extract them on boardiag. And flashing aboot, primaryGT, etc on boarddiag using file extractor d855 tot.
But, after finished, after you see "download mode", just flash your d855K kdz, or d855 kdz using flashtools 2014.
This might help you my friend.
Sent from my LG-D855 using Tapatalk

LGD855 Changed to LS990 after flashing wrong rom.and wont go back

Hello Everyone I have a problem with my LG G3 which I have bought it recently was working nice but it had KitKat so I wanted to upgrade to lollipop but didn't know that LG G3 had different variant.
I've downloaded a wrong flash (LS990 sprint) and flashed it. so I lost the network and I noticed that the imei has changed. and I don't have the original IMEI of the phone ( the sticker on the back of phone is for D855 16GB not for D855 32GB).so I think its not the original IMEI.
After bricking the phone I've opened it and noticed that it was D855 written on the motherboard.
when trying to flash the original D855 rom it doesn't work (flashed it using the crossDLL method and using the Hex Method By changing D855 to LS990 to make the flash tool think Its LS990) the flash pass on both methods but i'm stuck on LG logo.
send it to some repairing services here in my country but they didn't fix it they thought its sprint so they flashed PrimeGSM but still no network.
I think I should change the IMEI before flashing D855 or something.
please Help me I've looked all over the NET but find no solution to this problem.
If you need more informations ask me. Help me as soon as possible this is the only phone that I have.
Did you ever figure out how to fix this? I have a ls990 which was flashed with PrimeGSM and is now detected as a d855... I have been trying to get this working for the last two days with no luck
Reply
Hello
What is the problem that you are facing ?
Is it a network problem or what ?
Primegsm is ported from d855 so i think it will show D855 on any lg g3 that does'nt mean that your phone detected as d855.
Make sure your phone is ls990 or another variant
And which country and carrier ? So i can help you.
I basically have a soft bricked phone - no OS as all. I am in New Zealand running on the Vodafone network.
I was using PrimeGSM and it was working fine but decided to go back to the stock ZV8, when running through LG Flash Tool I noticed Download mode was showing the model as a D855 and would not accept the LS990 DLL - I then made the mistake of using the generic DLL with a D855 image which started a boot loop - then made more mistakes and ended up with no OS and stuck at the LG logo.
At this stage I am able to get to fastboot and use fastboot boot to get into TWRP but cannot do much from there, I also have to use the D855 TWRP image as the LS990 fails with a device tree issue. fastboot will not erase any partitions or flash any images manually. Using terminal in TWRP I am able to browse the partition though but cannot mount the SD card or use adb to push or pull (fails with error closed)
I stuffed up quite a few times along the way but sure I can recover from it since I still have quite a bit of access to the device...
I managed to get my phone going again by following a guide I found in the forum, I am pretty sure it would solve the ops issue as well.
Really quick and easy, I just bridged the points with a needle and copper cable.

LG G3 Virgin Mobile/ Bell D852 Variant TWRP/Downgrade Help for unlocking baseband

Alright. Where do I start.
I want my phone to work with Wind network here in canada. I have the LG G3 D852 locked to bell/Virgin mobile, running androind 6.0 MM
I've already purchased an unlock code to use with any SIM, and this does work, however, being that it is the D852 variant, and not the D852g variant, the baseband is locked for this cellular network modem- wise.
My attempts to rectify this was to flash it with a stock D852g, as the hardware is the same, the only difference being Bell's desire to shaft you up the A**.
Anyway, I first went about this by using the LG Flash tool to flash the D852g .tot onto the phone using download mode, however, that failed. It said "Hardware Mismatch error" in the LG flash tool.
Then, I went about trying to flash the original D852 .tot, but with Android 4 or 5 instead of MM. Same Issue- Hardware Mismatch error.
So i resorted to downloading Kingroot, which achieved temporary root, and flashing TWRP.
This works, untill I try to boot into TWRP recovery. (This issue is present with both 3.0 and 2.8) When I reboot, it says signature check fail, or something of the sorts, and the phone screen goes blank, and i'm left with warning flashing lights.
HOWEVER, if I restart the phone, it boots normally.
How can I flash TWRP so I can get a custom rom, or just a D852g stock rom on here so I can utilize the addidional basebands and NOT have to buy a new phone on tab from one of Canada's draconian phone companies?
Is this even possible?
You cannot flash a ROM for a different model. The d852's hardware is the same as the AT&T D850 model but flashing a d850 ROM will brick the phone. I'm surprised your phone even boots for most people flashing the wrong model hardbricks there phone. Also what carrier are you trying to switch too?
And the d852g has almost no ROM support anyway.
Sent from my LG-D852 using XDA Labs
some guy1701 said:
You cannot flash a ROM for a different model. The d852's hardware is the same as the AT&T D850 model but flashing a d850 ROM will brick the phone. I'm surprised your phone even boots for most people flashing the wrong model hardbricks there phone. Also what carrier are you trying to switch too?
And the d852g has almost no ROM support anyway.
Sent from my LG-D852 using XDA Labs
Click to expand...
Click to collapse
I am trying to switch to WIND. I thought that I could flash a normal d852 rom, with an older version of android using download mode, and then just add in the radio baseband packages so it actually works with their network. But it won't let me flash a normal d852 rom either, it always boots into android 6.0 mm.
some guy1701 said:
You cannot flash a ROM for a different model. The d852's hardware is the same as the AT&T D850 model but flashing a d850 ROM will brick the phone. I'm surprised your phone even boots for most people flashing the wrong model hardbricks there phone. Also what carrier are you trying to switch too?
And the d852g has almost no ROM support anyway.
Sent from my LG-D852 using XDA Labs
Click to expand...
Click to collapse
On the D852G you can flash any D852 rom (I'm doing it right now with fulmics and I've done it with nearly every rom available here on xda)
---------- Post added at 06:21 PM ---------- Previous post was at 06:17 PM ----------
mr.gsmith said:
Alright. Where do I start.
I want my phone to work with Wind network here in canada. I have the LG G3 D852 locked to bell/Virgin mobile, running androind 6.0 MM
I've already purchased an unlock code to use with any SIM, and this does work, however, being that it is the D852 variant, and not the D852g variant, the baseband is locked for this cellular network modem- wise.
My attempts to rectify this was to flash it with a stock D852g, as the hardware is the same, the only difference being Bell's desire to shaft you up the A**.
Anyway, I first went about this by using the LG Flash tool to flash the D852g .tot onto the phone using download mode, however, that failed. It said "Hardware Mismatch error" in the LG flash tool.
Then, I went about trying to flash the original D852 .tot, but with Android 4 or 5 instead of MM. Same Issue- Hardware Mismatch error.
So i resorted to downloading Kingroot, which achieved temporary root, and flashing TWRP.
This works, untill I try to boot into TWRP recovery. (This issue is present with both 3.0 and 2.8) When I reboot, it says signature check fail, or something of the sorts, and the phone screen goes blank, and i'm left with warning flashing lights.
HOWEVER, if I restart the phone, it boots normally.
How can I flash TWRP so I can get a custom rom, or just a D852g stock rom on here so I can utilize the addidional basebands and NOT have to buy a new phone on tab from one of Canada's draconian phone companies?
Is this even possible?
Click to expand...
Click to collapse
Some people already tried to "convert" their phone, you can take a look inside this thread (starting at the bottom of the page number 5)
RapHaeL_4_4_4_ said:
On the D852G you can flash any D852 rom (I'm doing it right now with fulmics and I've done it with nearly every rom available here on xda)
---------- Post added at 06:21 PM ---------- Previous post was at 06:17 PM ----------
Some people already tried to "convert" their phone, you can take a look inside this thread (starting at the bottom of the page number 5)
Click to expand...
Click to collapse
Alright so i tried flashing twrp and every time i try to boot into recovery i get SIG_LEN_ERROR
And if i try to use lg flash tool i het device error. No matter what i try to flash, even if its stock.
Whats up?
I just want the wind baseband on this phone ...
mr.gsmith said:
Alright so i tried flashing twrp and every time i try to boot into recovery i get SIG_LEN_ERROR
And if i try to use lg flash tool i het device error. No matter what i try to flash, even if its stock.
Whats up?
I just want the wind baseband on this phone ...
Click to expand...
Click to collapse
What method you took to flash twrp? And what was your android version before flashing?

F400s recognized as D855.

Hello, I have a Korean F400s LG G3 i rooted it and installed a ROM and it was working fine for a year or so, i wanted to upgrade to Marshmallow but i mistakenly flashed a D855 Rom to my phone, the phone froze up and now it only enter the fast-boot mode and Download mode when connected to the flash tool, i tried downloading the stock ROM for the f400s but the flash-tool shows me that it is not the Korean version, somehow the ROM changed my phone to a D855, i wanted to know is there any way to get it back to the old version? force flashing the old stock ROM? and if i just flash the D855 ROM will there be any danger on my phone? Thanks!

LG G3 soft bricked!! flashed wrong firmware

Heloo everone i am from INDIA
recently i purchased and refurbished lg lg3 within setting i could se it was D855 but on body it was D850
so i thoguhts its D855 because software it was running was D855 but then i flashed D855 firmware to update it and it is soft bricked i direct goes to download mode and nothing works
I took it to a shop he tried sevelar firmware at once i got it boot up but no camera wifi no modem, so it was not the correct one,
So is thier a way i can get it working?
How could i figure it is sprint at&t or verzion??? because it was an cdma set,
Cm13 or stock rom anything could work for me
Anyone please give me a procedure will b thankful to U.... :crying:
I you are able to access download mode, try and flash the latest marshmallow KDZ for D855. My device also has D850 on the back but it has the D855 software.
youssefkr said:
I you are able to access download mode, try and flash the latest marshmallow KDZ for D855. My device also has D850 on the back but it has the D855 software.
Click to expand...
Click to collapse
an you give me the link u have flashed on your device n tool n procedure you sued to flash it??
will b thank full 2 u
happy3777 said:
an you give me the link u have flashed on your device n tool n procedure you sued to flash it??
will b thank full 2 u
Click to expand...
Click to collapse
First open up your phone,exact model will be on the board.then flash accordingly software.
Jahanzaibawan said:
First open up your phone,exact model will be on the board.then flash accordingly software.
Click to expand...
Click to collapse
I know already tried But it was D855 already tried n that caused soft bricking....

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