yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] bitdomo:
Thnak you! The rooting-forv20c.rar contains the v20c kernel file.
[Upgrading, Modifying and Unlocking] boy977:
I need CWM for v20c.Do you have it?
[Upgrading, Modifying and Unlocking] bitdomo:
[MENTION=3791969]alamatnitotoy[/MENTION] I looked deeply into why flashing v20c brick your phone. My statement that the kernel image is missing from v20c was wrong. The kernel is there but an wrong place. When you use the extractor from P990 AIO toolkit to extract the image files from AP.bin file, the extractor shows you that which image file is at what OFFSET (or address) in the AP.bin file. Here is what am I talking about:

[01] address=0x00100000 size=0x00400000 // bct file
[02] address=0x00500000 size=0x00200000 // partition layout
[03] address=0x00700000 size=0x00200000 // bootloader
[04] address=0x00900000 size=0x00600000 // recovery
[05] address=0x00f00000 size=0x2bc00000 // system
[06] address=0x2cb00000 size=0x00600000 // kernel
[07] address=0x2d100000 size=0x12c00000 // internal sd content

These adresses also used during smartflashing. These adresses tells the smartflash where is the kernel image and system image and etc in the v20c AP.bin file

If you flash v20c and you read back the 12th partiton with nvflash you can see only zeros.

If you open teh v20c AP.bin file in a hex editor and you go to the 2CB00000 offset you can see there is nothing just bunch of zeros, the kernel is not there. The kernel actually at 2E000000 offset. Not just the kernel is at a wrong offset, also the sd-img is at the wrong offset. sd-img should be at 2D100000 offset, but in the v20c AP.bin it is at 2E600000 offset. So, when you flash v20c the kernel partition will be filled with 00 hex values and the internal sdcard got damaged as well, because the kernel image gets flashed to the internal sdcard. This cause the Stuck at LG boot logo effect, even if you flash v20c kernel to the righ partition with nvflash, because the internal sdcard is damaged.

Fixing v20c AP.bin file:

There are only 00 hex values From 2CB00000 to 2E000000.

Delete those 00 hex values, then the kernel image and the sd-int.img get to the right offset

Insert the same amount of 00 hex values as the amount of deleted 00 hex values to the end of the v20c AP.bin file to keep the size of the sd-int.img, then save the modifications.

I flashed this modified v20c AP.bin to my p990. I read back every necessary partition with nvflash and everything was okay. bootloader, bct, partitions, kernel, recovery, system are aon the right partition so maybe it's fixed, but I am not 100% sure just 98% because I don't have su880 :(

I want to share you and with others the fixed v20c, so you can test. You can download it here

I want to share my google drive folder as well where you can find my works with su880. It has cwm for v19c and v20c. I also write a read me how can you flash it and root your phone with CWM. Well it was not tested as well, I am 98% sure it works, because rooting p990 and su660 stock roms works that way and p990, su660 and su880 almost the same. I use the CWM recovery image from "CWM for v19c".

My folder is here, some files are still uploading. I will notice you in this post when it is finished
[Upgrading, Modifying and Unlocking] boy977:
There is no bootloader.img in the folder "SU880_V20C_CWM".Have you forgot it?:confused:
[Upgrading, Modifying and Unlocking] bitdomo:
Oh sorry :(. Bootloader is there just rename it to bootloader.img from bootloader.bin, or download the rar file again from my google drive folder. I fixed it now.
[Upgrading, Modifying and Unlocking] boy977:
I'm trying to fix "dual clock" at the lockscreen on my v20c rom.Do you know how?
[Upgrading, Modifying and Unlocking] bitdomo:
Search for that in the Optimus 2x forums, there should be the solution. I remember that some peopla who are useing su660 solved this dual clock thing.
[Upgrading, Modifying and Unlocking] joeclap:
smartflash

i have flashed my su880 with smartflash as u teach above, now it stuck lg logo? what should i do? please help..:confused:
[Upgrading, Modifying and Unlocking] bitdomo:
What rom did you flashed? Ippnclude download link for the downloaded rom.
[Upgrading, Modifying and Unlocking] joeclap:
Celebrate mempaho

V20c rom, i've extracted rom files by rom covertor and flashed with smartflash. Thats all. Now stuck lg logo...
[Upgrading, Modifying and Unlocking] bitdomo:
If you can go to S/W download mode then flash this with smartflash. If you can't go to S/W download mode use "Bootloader installer for v19c", and flash that rom I linked
[Upgrading, Modifying and Unlocking] joeclap:
I cant go s/w mode but volume+ power working. What should i do? Can u explain step by step? Where i can find bootloader installer for v19c?
[Upgrading, Modifying and Unlocking] bitdomo:
The bootloader installer is at the first post of this thread.

Enter your phone to APX mode:

Remove battery

Press and hold volume_up and voulume_down button while you connect USB cable

Install APX drivers

Run the bootloader installer for v19c.
[Upgrading, Modifying and Unlocking] boy977:
Hey i need bootloader for v20c.Can you give it to me?
[Upgrading, Modifying and Unlocking] alamatnitotoy:
first post..included in the rootv20c file
[Upgrading, Modifying and Unlocking] nsnobel2:
friends can you tell me difference between v20c and v19c file?

Can I install one of them for my LG SU880?
[Upgrading, Modifying and Unlocking] bitdomo:
V19c is a béta test rom. V20c is the final release.

If you want to use v20c then flash v10m first and update v20c using kdz updater or LG update.
[Upgrading, Modifying and Unlocking] nsnobel2:
sooooooooo nice of you friend :):good:

kindly link of V10m file pls

thank

br
[Upgrading, Modifying and Unlocking] bitdomo:
v10m. Flash it with kdz updater (or use extractor then flash it iwth smartflash)
[Upgrading, Modifying and Unlocking] boy977:
The link is die and i really need it now.Can you fix it?
[Upgrading, Modifying and Unlocking] :
Same problem - Link dead

Hey. I have the same problem as that guy. Used Smart Flash to flash converted V20C_00.kdz and phone's now stuck on the LG logo. The google docs link is dead. Which file were you suggesting to flash?

Thank you
[Upgrading, Modifying and Unlocking] bitdomo:
I am sorry, but I had to remove the link for the v20c, because I don't know it is going to work. First I want to test it by someone. It is easier to recovery only one phone from brick than 10 or more phones.

First try to enter to S/W upgrade mode. (Screen show a big circle with arrows in it). If you can't enter use one of those files from the first post of this thread.

Flash v10m, with kdz updater or extract it and use smartflash. (I recommend smartflash).

Then use the offical lg updater to update your phone to 20c or use kdz updater. (Open the link, click on "SOFTWARE UPDATE" tab, in "STEP 2" click on DOWNLOAD)

If you follow my instruction you will have a working v20c.
[Upgrading, Modifying and Unlocking] :
I flashed V10 and then updated to V20, like you said. It worked like a charm. Thank you so much for helping. :good:
[Upgrading, Modifying and Unlocking] alamatnitotoy:
updated... provision rom page 1
[Upgrading, Modifying and Unlocking] tellum:
sir, your link is can't open..please try to upload again..i tried bootloader v19c..but, still i can't go to s\w..can you help me?:cryinghttp://xdaforums.com/images/icons/icon9.gif
[Upgrading, Modifying and Unlocking] bitdomo:
On the weekend i can help you. Send me an email to toth.dominik92@gmail.com
[Upgrading, Modifying and Unlocking] DaeNiarzk:
hello ..

i have a LG SU880 the phone is brick with 1 year later :D

now i want to fix it ??

what im going to do with the phone ??

please help me :(
[Upgrading, Modifying and Unlocking] bitdomo:
I am working on nvflash recovery rom. It will be ready soon (3-4hours). This is a totaly new way of recreating the partitions on the phone. I hope it will work. At least it worked for my phone. It should work fot su880 as well

EDIT: Download my stuff from here, then extract it. Put your phone to NVFLASH MODE by removing BATTERY, then pressing and holding both VOLUME KEY whle you connect the USB CABLE. Install drivers. Run flash.bat from v10m_nvflash
[Upgrading, Modifying and Unlocking] DaeNiarzk:
bro ,, this driver is not found when im download from google drive :(

any mirror please :o thank you for your answer , im open my way to fix this lg su880 :D

edit : this link it's work .. thanks

waiting for my next information :)
[Upgrading, Modifying and Unlocking] bitdomo:
Just remove the battery from the phone, connect the usb cable while you press and hold volume down and volume up key. Install drivers. If you have windows 8 you have to turn off the driver signiture check in order to install nvflash drivers. Check in the device management is there NVDIA USB RECOVERY in the USB section. Extract the v10m rar then run flash.bat
[Upgrading, Modifying and Unlocking] DaeNiarzk:
what im doing now bro ??

im done for instal driver then i open flash bat ..

open this hide photo :)

how to fix this ?? waiting ?? :confused:
[Upgrading, Modifying and Unlocking] bitdomo:
Replace the star.bct with my attachment. report me back.
[Upgrading, Modifying and Unlocking] DaeNiarzk:
what the effect when i replace the star bct ??

the cmd stuck like a my pict in my previous post

Nvflash started

[resume mode] :confused:

edit : this cmd its working bro ..

thanks waiting for procces now :)

hey the procces its done cmd its close .. then what im doing now ?? :)

any contact person of you ?? whatsapp ?? line ?? i need for this time :)

open the hide ;)
[Upgrading, Modifying and Unlocking] bitdomo:
Seeing the outcome I have to say that I made a typo. I am not at home so I can't check the flash.bat myself. Can you post the content of the flash.bat here, or open the flash.bat in a text editor and search for something like this:

it must be somewhere at the end of flash.bat. If you found that part change the recovery to recovery.img from the end of the line, save the file and run the flash.bat again.

I think your phone should boot up know even if you does not have recovery.

My contact is toth.dominik92@gmail.com
[Upgrading, Modifying and Unlocking] DaeNiarzk:
hey ..

when i change the recovery to recovery.img

echo.

echo.

nvflash.exe -r --download 6 recovery

to

echo.

echo.

nvflash.exe -r --download 6 recovery

.imgecho

the result is

and the end of the line is

--download 18 sd-int.img

echo.

echo.

echo.Restarting phone...

echo.

echo.

nvflash.exe -r --go

pause

the phone is not boot up :(

:confused:
[Upgrading, Modifying and Unlocking] bitdomo:
Revert the changes and download notepad++. Use it to edit the flash.bat as I said before. This problem is casued by stupid windows notepad. But notepad++ works well
[Upgrading, Modifying and Unlocking] DaeNiarzk:
okay im trying ..

now i use the notepad ++

cekidot

correct or incorrect ??
[Upgrading, Modifying and Unlocking] bitdomo:
Yes it is, run it!
[Upgrading, Modifying and Unlocking] DaeNiarzk:
when i save the flash.bat from editing like a pic in top ..

the phone is not boot up ?? or plug my battery then press power ?? :confused:
[Upgrading, Modifying and Unlocking] bitdomo:
I meant that save the flash.bat then do everything from the begining. Remove battery, plug usb cable while holding volume down and up, run flash.bat. After it finished ( at Restarting phone text) wait 15-20 secs then remove the cable. Insert batter then turn on your device. At least you should see an LG logo on your screen
[Upgrading, Modifying and Unlocking] DaeNiarzk:
Hey can you give me the battery port lg su880 .. My phone is not on when i press power button or my battery as not charging at one thousand years ? :confused:
[Upgrading, Modifying and Unlocking] bitdomo:
The pin layout is at the battery. For me the + is the left and - is the right. I dont know what the middle stands for. Keep your phone plugged on the charger and hope that it will turn on. You can give an over voltage to your battery to bring it back quickly but that is dangerous if you dont know what are you doing. Just leave it on the charger for a day. Dont buy new battery unless borrow a battery from an other su880 to ensure that your phone is working before you spend money unnecessary

Edit: You can try whether your phone working. Remove battery then press and hold only volume down key and insert usb cable. Hold the volume key still until your phone showes S/W upgrade. If that works your phone is working. By the way what was the original problem with your phone.
[Upgrading, Modifying and Unlocking] DaeNiarzk:
Ok ill try this ..

The original problem is bricked bro and only detected with pc an apx ( nvflash) ..

When i service in the friend , my friend talk about this chip on my phone is break cz the phone is bricked ..

My phone brick only 1 years ..

Thanks for your opinion ..

Waiting for my information in next time ;)
[Upgrading, Modifying and Unlocking] bitdomo:
These kind of phones p990 su660 and su880 are unbrickeable. for p990 and su660 there is a nvflash rom but for su880 there is none. I am trying to help out you guys with su880 phones with nvflash rom, but su880 is a bit different and I can not test my nvflash roms for su880 because I don't have that type of phone. So things maybe don't work at first but if you report me back then we could recovery from brick every su880.

Try that what I said in my previous post. Entering to S/W upgrade does not need battery, and if you can get to that screen your phone probably can boot up when you have a good battery. Even if it can't boot up to android, then you can use smartflash to flash rom since S/W upgrade is working, and if you flash rom with smartflash that 100% will work.
[Upgrading, Modifying and Unlocking] DaeNiarzk:
ohh ..

i thing you have a originally file of su880 :D

hmm its okay ill try this and work with your instruction ,

when im entering s/w upgrade no battery is not working ..

now i will charger my battery with desktop charging ;)

update : now my phone not fix :(
[Upgrading, Modifying and Unlocking] ghalie:
i cant root the v19c i follow the intsruction that you give

ive tried this several times.. but i got stock on lg logo.. plzz help me i want to remove the korean apps..

Rooting V19c stock ROM

>Unplug USB cable

>enable USB debugging mode then Plug back the USB

>Download Root for V19c above

>extract the content to a folder and run ROOT.bat

>press 1 under CMD and select Data Restore on your phone screen

>your Phone will restart

>Turn ON your Phone and you will receive a message from the command prompt that the root is successful

>to verify, you can look for a new ICON (android with a red cape flying)

can you give a step by step to root my optimus ex v19c??

plzzzz

when i enter apx mode the exroot complete the intalation then after that its stock in lg logo..

plzzz im waiting to your reponse thanks in advance..
[Upgrading, Modifying and Unlocking] bitdomo:
[MENTION=4419327]spyrosk[/MENTION] I see your point.

My main problem with su880 is that it has a different partition layout. so it comes like this:

As you can see it differs in extend partitions like su660 and p990. It does not follow the EB1 EB2 EB3... rule. It use only one EBR (extended bootrecord) and I don't know teh nvflashpartition config for that EBR type.

That partition.cfg is look liek that because that is the minimum to get bootloader work so smartfalsh and nvflash could work.

The BCT.img (image of the PT partition) is actually contains the partition layout (it is extracted from su880 stock rom) , this tells the nvflash what partitions are on the phone and what its size and etc, but you have to restart your phone to nvflash mode after flashing BCT.img. It got falshed at 2048 sector (1 sector is 2048byte) where it originally should be. After the rastart to nvflash, the phone has the correct pt layout so waht you need is to format all the partitions. It is same as using partitioncfg file, but somehow works better. I made p990 version as well and it turned out I dont have to flash lgdrm.img, because by this method it got formated to the right format. Formating BCT partition is actually does nothing, bct conf file got flashed again automaticly after formating. If you intrested in I can send you the P990 verison of this nvflashing thing.

(--getpartitionlayout command is actually converts the PT partition into a txt file but it left out a few things.)

[MENTION=4586094]DaeNiarzk[/MENTION] when you connect the usb cable without pressing any key is your phone goes to NVFLASH mode? Can you messaure the voltage of you battery? Maybe you have to charge your battery without the phone. I mean you have to make a stand to connect your battery directly to the charger.

[MENTION=5400315]ghalie[/MENTION] download cwm for v19c put your phone to nvflash mode and run Run.cmd then press 2. Inform me is your phone got back to life or not
[Upgrading, Modifying and Unlocking] spyrosk:
EB1, EB2, EB3 .. are insignificant and not used for anything. Their size is only 128k.

Sure send me this P990 verison of this nvflashing thing I am curious.

But my opinion is that since this method didn't work for this device let's make a full partition.cfg, what do we have to loose?
[Upgrading, Modifying and Unlocking] DaeNiarzk:
[MENTION=4325732]bitdomo[/MENTION]..

No,

I must hold the two volume button n plug the cable data to enter nvflash mode ..

The voltage of my battery ..

Im charging the battery with desktop battery bcz my phone is bricked can't turn on :(

[MENTION=4419327]spyrosk[/MENTION]

my partition.txt

when i try your command ..

PartitionId=2
Name=BCT
DeviceId=18
StartSector=0
NumSectors=1536
BytesPerSector=2048

PartitionId=3
Name=PT
DeviceId=18
StartSector=2048
NumSectors=256
BytesPerSector=2048

PartitionId=4
Name=EBT
DeviceId=18
StartSector=2304
NumSectors=768
BytesPerSector=2048

PartitionId=5
Name=MBR
DeviceId=18
StartSector=3072
NumSectors=512
BytesPerSector=2048

PartitionId=6
Name=APP
DeviceId=18
StartSector=3584
NumSectors=179200
BytesPerSector=2048

PartitionId=7
Name=CAC
DeviceId=18
StartSector=182784
NumSectors=32768
BytesPerSector=2048

PartitionId=8
Name=MSC
DeviceId=18
StartSector=215552
NumSectors=1024
BytesPerSector=2048

PartitionId=9
Name=EB1
DeviceId=18
StartSector=216576
NumSectors=256
BytesPerSector=2048

PartitionId=10
Name=LNX
DeviceId=18
StartSector=216832
NumSectors=4096
BytesPerSector=2048

PartitionId=11
Name=EB2
DeviceId=18
StartSector=220928
NumSectors=256
BytesPerSector=2048

PartitionId=12
Name=DRM
DeviceId=18
StartSector=221184
NumSectors=1280
BytesPerSector=2048

PartitionId=13
Name=EB3
DeviceId=18
StartSector=222464
NumSectors=256
BytesPerSector=2048

PartitionId=14
Name=SOS
DeviceId=18
StartSector=222720
NumSectors=10240
BytesPerSector=2048

PartitionId=15
Name=EB4
DeviceId=18
StartSector=232960
NumSectors=256
BytesPerSector=2048

PartitionId=16
Name=UDA
DeviceId=18
StartSector=233216
NumSectors=786432
BytesPerSector=2048

PartitionId=17
Name=EB5
DeviceId=18
StartSector=1019648
NumSectors=256
BytesPerSector=2048

PartitionId=18
Name=UDB
DeviceId=18
StartSector=1019904
NumSectors=2768896
BytesPerSector=2048
[Upgrading, Modifying and Unlocking] spyrosk:
[MENTION=4586094]DaeNiarzk[/MENTION]

thanks. It is the same with p990's layout for old bootloader, except that EB1,EB2 .. are 512k instead of 128k

Another finding:

the system partition of the device is 350MB but the one in bitdomo's v10m_nvflash.rar is 550MB so it could never be downloaded to the device succesfully.

I made a new partitions.cfg with a re-sized system (APP) partition to 550MB.

I attached a new nvflash.zip, which additionally contains the new partitions.cfg & flash.bat

Extract this nvflash.zip and

in the same folder

extract from v10m_nvflash.rar the:

boot.img

system.img

recovery.img

Then enter APX mode and run the flash.bat

Report back
[Upgrading, Modifying and Unlocking] DaeNiarzk:
not fix ..

my phone can't on when i press power button ..
[Upgrading, Modifying and Unlocking] spyrosk:
This may be a problem of your device or it's battery

First of all

did the flash finished succesfully

?

Did you try to power-on while it is connected to the charger?

Edit: Try also to boot in recovery (press pwr & vol- and wait for about 40 secs)
[Upgrading, Modifying and Unlocking] DaeNiarzk:
hey bro .

the phone is turning on now stuck in logo LG ..

omg thank you so much ..

what im to do now ?? :good:

update : when im unplugged the cable usb from my phone ..

the phone is not turn on when i press the power button , but when i plugged the cable usb to the phone when i press the power button the phone is turn on :)

hmm .. im press the power button with volume - can not boot to recovery ..
[Upgrading, Modifying and Unlocking] spyrosk:
Maybe there is something wrong with bootloader.

Rename the existing and copy the attached one in nvflash folder (it is the old bootloader for P990).

Try nvflash again and see what happens.

But before that:

Try to enter S/W upgrade mode. If succesfull try the smartflash method.

PS: Please always give an answer to all my questions, so I'll have a full "picture" of the situation.

I need to know if it enters recovery or S/W upgrade.
[Upgrading, Modifying and Unlocking] DaeNiarzk:
hmm ..

i copy the bootloader from your attached ? "nvflash"

or copy the bootloader from v10_nvflash by bitdomo ?? sorry i dont understand :confused:

ohh you attched in this post ..

sorry .. okay now im trying :)

hello ..

im trying to enter s/w mode but not work ,

then i installed the attached file in your new post ,

my phone back in before condition , my phone can not turn on :(
[Upgrading, Modifying and Unlocking] spyrosk:
Flash it again with original bootloader from v10m-nvflash.rar, so it can be powered on at least when it is plugged in.

Keep it plugged in and try to enter recovery and to enter S/W Upgrade mode.

Then you have to borrow a battery from a friend if possible to make sure that yours has problem.
[Upgrading, Modifying and Unlocking] DaeNiarzk:
i dont have friend with phone 2x or su880 ..

so i can't borrow the any battery but i have a other battery with 3.7 V it same with my battery stuck in LG logo ,

hmm when i powered with original bootloader , my phone stuck in logo ..

how can fix this ?? i try your command :)
[Upgrading, Modifying and Unlocking] spyrosk:
The stuck problem may be in boot.img or system.img.

Remove battery press and hold vol- and plug it keep pressing for no more than 30 secs. Does it enter S/W upgrade?

If yes try the smartflash method in OP.

If not,

Download the original KDZ extract it with AIO-toolkit

Continue axtracting the AP.bin (make sure you select GB)

Then replace boot.img and system.img in nvflash folder with the extracted ones and nvflash again.

I can't think of anything else.