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[Guide][Crossflash] V450PM to V500EM Android 11

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cloud1250000

Senior Member
Jul 4, 2011
438
166
Ottawa
Disclaimer: I am not responsible for any problems from using this guide.

Hi..

I've made some easy files to flash in QFIL for sprint owner. This will give you a debloated A11 on your phone. Took me a while, but i finally got deepsleep working.. So I feel like this is worth sharing. I will likely update that guide with the korean android 11 once it's released.

This was tested by Arkadii on TG. (and myself)

What's broken: (using the canadian OP provided, I lightly tested the EU OP, so I can't provide a list for it)
- Vowifi
- no volte toggle (but it's working..)
- lg mobile switch
Downloads:
OP: (download one)​
( I use this one :) )​

Step 0.
Extract All downloaded zip.​
You should have 7 bin files.​
Step 1.
Unlock bootloader...​
Step 2.
Disable vbmeta. (Important! Likely needed for other crossflashing roms too)​
- Get in QFIL​
- backup vbmeta and abl
- Flashback the eng abl from the unlock bootloader guide (from step 1)​
- boot fastboot on your phone and plug it in your pc (note which slot (a or b) you are using right now)​
- Using the backed up vbmeta, open cmd and enter the following command:​
- fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin​
- fastboot oem edl​
Step 3.
Make a backup of everything you flash on.
(use the read option before using the write one lol, don't forget to rename the file before switching to another one)
Flash the following partitions in QFIL, (using the downloaded files)​
your phone should have already rebooted in EDL with the last command.​
Product, Vendor, System, OP, ABL, Boot, DTBO
Step 4.
Master Reset..​
The same factory reset combo from any other lg phone..​
some user report simply holding vol- + power works for them too...​
Step 5.
Setup the device..​
Everything should be working except deep sleep.​
Step 6.
Fixing deep sleep....
Boot in EDL again and flash the following modem in QFIL:​
(extract the zip before)​
Step 7.
Reboot the phone.​
Go in network tab..​
Switch the network mode to "GSM / WCDMA / LTE auto" ...​
This one works for me.. you might have to put airplane mode or go in the *#*#4636#*#* and try different preferred network type.. (5g will never work on this phone....)​

Step 8.
Enjoy!​

For other people enjoying early access to other A11 roms, or even Nemo's rom! The modem from step 6 should work fine with them (and will solve deepsleep issue). If you are a rom maker, please refer to this thread when adding the modem to your rom :)

Have a nice day.
Cloud1250000

ps. Time to sleep
 
Last edited:

dark4m

Senior Member
Aug 28, 2012
62
21
Now V50 sprint is getting some serious love.
Much appreciated, keep up the good job.
 

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
Just curios about step 6. Modem file. This has been asked before but is there any way to get 5g on tmobile running?

Sorry, didn't see your "5G will never work on this phone" comment. Apologies.
 
Last edited:

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
Disclaimer: I am not responsible for any problems from using this guide.

Hi..

I've made some easy files to flash in QFIL for sprint owner. This will give you a debloated A11 on your phone. Took me a while, but i finally got deepsleep working.. So I feel like this is worth sharing. I will likely update that guide with the korean android 11 once it's released.

This was tested by Arkadii on TG. (and myself)

What's broken: (using the canadian OP provided, I lightly tested the EU OP, so I can't provide a list for it)
- Vowifi
- no volte toggle (but it's working..)
- lg mobile switch
Downloads:
OP: (download one)​
( I use this one :) )​

Step 0.
Extract All downloaded zip.​
You should have 7 bin files.​
Step 1.
Unlock bootloader...​
Step 2.
Disable vbmeta. (Important! Likely needed for other crossflashing roms too)​
- Get in QFIL​
- backup vbmeta and abl
- Flashback the eng abl from the unlock bootloader guide (from step 1)​
- boot fastboot on your phone and plug it in your pc (note which slot (a or b) you are using right now)​
- Using the backed up vbmeta, open cmd and enter the following command:​
- fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin​
- fastboot oem edl​
Step 3.
Make a backup of everything you flash on.
(use the read option before using the write one lol, don't forget to rename the file before switching to another one)
Flash the following partitions in QFIL, (using the downloaded files)​
your phone should have already rebooted in EDL with the last command.​
Product, Vendor, System, OP, ABL, Boot, DTBO
Step 4.
Master Reset..​
The same factory reset combo from any other lg phone..​
some user report simply holding vol- + power works for them too...​
Step 5.
Setup the device..​
Everything should be working except deep sleep.​
Step 6.
Fixing deep sleep....
Boot in EDL again and flash the following modem in QFIL:​
(extract the zip before)​
Step 7.
Reboot the phone.​
Go in network tab..​
Switch the network mode to "GSM / WCDMA / LTE auto" ...​
This one works for me.. you might have to put airplane mode or go in the *#*#4636#*#* and try different preferred network type.. (5g will never work on this phone....)​

Step 8.
Enjoy!​

For other people enjoying early access to other A11 roms, or even Nemo's rom! The modem from step 6 should work fine with them (and will solve deepsleep issue). If you are a rom maker, please refer to this thread when adding the modem to your rom :)

Have a nice day.
Cloud1250000

ps. Time to sleep
Just a quick couple of questions

When I use this command “fastboot --disable-verity --disabl- fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin” I get an error message.. - unknown command, —disable-verity. So had to run it so… “fastboot flash vbmeta vbmeta.bin”. Don’t know what I’m missing?

This is probably leading to my second problem. I’ve tried flashing both the USA and Korean twrps 3.3.1 from magisk manager. With the USA version i can’t mount any partitions. With the Korean it keeps asking me for a password which I’ve never set. I reinstalled, reboot and set it up specifically without any security but still the same thing. Any suggestions would be greatly appreciated!
 

cloud1250000

Senior Member
Jul 4, 2011
438
166
Ottawa
Just a quick couple of questions

When I use this command “fastboot --disable-verity --disabl- fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin” I get an error message.. - unknown command, —disable-verity. So had to run it so… “fastboot flash vbmeta vbmeta.bin”. Don’t know what I’m missing?
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin
I used this command multiple time with the abl from the unlock guide

This is probably leading to my second problem. I’ve tried flashing both the USA and Korean twrps 3.3.1 from magisk manager. With the USA version i can’t mount any partitions. With the Korean it keeps asking me for a password which I’ve never set. I reinstalled, reboot and set it up specifically without any security but still the same thing. Any suggestions would be greatly appreciated!

i do not cover twrp here.. but password is set when first booting system.. (it's the encryption) which is why you need to flash the dmverity zip and to format data again.. i used the korean twrp on my phone before...
 

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin
I used this command multiple time with the abl from the unlock guide



i do not cover twrp here.. but password is set when first booting system.. (it's the encryption) which is why you need to flash the dmverity zip and to format data again.. i used the korean twrp on my phone before...
Thanks for the info. Much appreciated. Steve
 

yifeileeece74

New member
Jul 27, 2020
4
0
I was able to follow your guide and flash my sprint V50 stock to A11. Thanks.

I can get LTE Data from Verizon network. But I cannot make phone calls using my current Verizon network. Is there anything else that I should do to make VOLTE work with Verizon? thanks again.
 

Wolff07

Member
Jul 3, 2020
7
0
Panamá ??
Hello I have a V450PM sprint but I am not in usa, this device is unlocked gsm (I got it in Ebay), If I try this can I lost the unlocked GSM??

Are the steps clear for the ones that dont know nothing about flash, twrp, partitions, etc... ME!? or there is something that can be complicated at the moment of do it?
 

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
Disclaimer: I am not responsible for any problems from using this guide.

Hi..

I've made some easy files to flash in QFIL for sprint owner. This will give you a debloated A11 on your phone. Took me a while, but i finally got deepsleep working.. So I feel like this is worth sharing. I will likely update that guide with the korean android 11 once it's released.

This was tested by Arkadii on TG. (and myself)

What's broken: (using the canadian OP provided, I lightly tested the EU OP, so I can't provide a list for it)
- Vowifi
- no volte toggle (but it's working..)
- lg mobile switch
Downloads:
OP: (download one)​
( I use this one :) )​

Step 0.
Extract All downloaded zip.​
You should have 7 bin files.​
Step 1.
Unlock bootloader...​
Step 2.
Disable vbmeta. (Important! Likely needed for other crossflashing roms too)​
- Get in QFIL​
- backup vbmeta and abl
- Flashback the eng abl from the unlock bootloader guide (from step 1)​
- boot fastboot on your phone and plug it in your pc (note which slot (a or b) you are using right now)​
- Using the backed up vbmeta, open cmd and enter the following command:​
- fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin​
- fastboot oem edl​
Step 3.
Make a backup of everything you flash on.
(use the read option before using the write one lol, don't forget to rename the file before switching to another one)
Flash the following partitions in QFIL, (using the downloaded files)​
your phone should have already rebooted in EDL with the last command.​
Product, Vendor, System, OP, ABL, Boot, DTBO
Step 4.
Master Reset..​
The same factory reset combo from any other lg phone..​
some user report simply holding vol- + power works for them too...​
Step 5.
Setup the device..​
Everything should be working except deep sleep.​
Step 6.
Fixing deep sleep....
Boot in EDL again and flash the following modem in QFIL:​
(extract the zip before)​
Step 7.
Reboot the phone.​
Go in network tab..​
Switch the network mode to "GSM / WCDMA / LTE auto" ...​
This one works for me.. you might have to put airplane mode or go in the *#*#4636#*#* and try different preferred network type.. (5g will never work on this phone....)​

Step 8.
Enjoy!​

For other people enjoying early access to other A11 roms, or even Nemo's rom! The modem from step 6 should work fine with them (and will solve deepsleep issue). If you are a rom maker, please refer to this thread when adding the modem to your rom :)

Have a nice day.
Cloud1250000

ps. Time to sleep
I think this needs further testing. I'm briefly able to get data on Google Fi but can't make a call. And then another poster on this thread had the same problem. I really like the rom, very smooth, but if you can't make a call you don't have a phone. You got a PDA.
 

cloud1250000

Senior Member
Jul 4, 2011
438
166
Ottawa
I think this needs further testing. I'm briefly able to get data on Google Fi but can't make a call. And then another poster on this thread had the same problem. I really like the rom, very smooth, but if you can't make a call you don't have a phone. You got a PDA.
what OP did you try btw? stock eu or canadian modded?

Edit:
try to go in the hidden menu (*#546368#*500#) > field test > modem settings > lte-a ca setting > all enable

or in the *#*#4636#*#* menu and make sure your preferred network type make sense.
or in the same menu, the 3 dot option on the top right corner > select radio band > United states

after that, make sure the network mode in settings is correct for your carrier.

Edit2 :
Not sure if any of those 2 OP fits the requirement for you carrier volte..
i would assume the canadian one would be closer then the EU one.
 
Last edited:

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
what OP did you try btw? stock eu or canadian modded?

Edit:
try to go in the hidden menu > field test > modem settings > lte-a ca setting > all enable

or in the 4636 menu and make sure you preferred network type make sense.
or in the same menu, the 3 dot option on the top right corner > select radio band > United states

after that, make sure the network mode in settings is correct for your carrier.
I use the stock eu but have now switched to CAN. I now have data again but still can't make phone call. Suggestion?
 

cloud1250000

Senior Member
Jul 4, 2011
438
166
Ottawa
I use the stock eu but have now switched to CAN. I now have data again but still can't make phone call. Suggestion?
and i assume you tried everything i said in the edit?

edit: likely.. for some reason, it forces volte.. but the settings are missing and you can't even toggle it off.. do you mind sharing a screenshot of the 4636 menu? (please hide any private information before sharing)
 

hooutoo

Senior Member
Apr 17, 2009
399
44
Ft. Lauderdale
I do have an NT Code 0 error. I lost my vtm partition and had to replace it. The code at 14000 hex was "1","310,120,FFFFFFFF,FFFFFFFF,FF". I loaded TMO_US "1","310,260,FFFFFFFF,FFFFFFFF,FF" but still getting NT-Code: 0
 

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    Disclaimer: I am not responsible for any problems from using this guide.

    Hi..

    I've made some easy files to flash in QFIL for sprint owner. This will give you a debloated A11 on your phone. Took me a while, but i finally got deepsleep working.. So I feel like this is worth sharing. I will likely update that guide with the korean android 11 once it's released.

    This was tested by Arkadii on TG. (and myself)

    What's broken: (using the canadian OP provided, I lightly tested the EU OP, so I can't provide a list for it)
    - Vowifi
    - no volte toggle (but it's working..)
    - lg mobile switch
    Downloads:
    OP: (download one)​
    ( I use this one :) )​

    Step 0.
    Extract All downloaded zip.​
    You should have 7 bin files.​
    Step 1.
    Unlock bootloader...​
    Step 2.
    Disable vbmeta. (Important! Likely needed for other crossflashing roms too)​
    - Get in QFIL​
    - backup vbmeta and abl
    - Flashback the eng abl from the unlock bootloader guide (from step 1)​
    - boot fastboot on your phone and plug it in your pc (note which slot (a or b) you are using right now)​
    - Using the backed up vbmeta, open cmd and enter the following command:​
    - fastboot --disable-verity --disable-verification flash vbmeta vbmeta.bin​
    - fastboot oem edl​
    Step 3.
    Make a backup of everything you flash on.
    (use the read option before using the write one lol, don't forget to rename the file before switching to another one)
    Flash the following partitions in QFIL, (using the downloaded files)​
    your phone should have already rebooted in EDL with the last command.​
    Product, Vendor, System, OP, ABL, Boot, DTBO
    Step 4.
    Master Reset..​
    The same factory reset combo from any other lg phone..​
    some user report simply holding vol- + power works for them too...​
    Step 5.
    Setup the device..​
    Everything should be working except deep sleep.​
    Step 6.
    Fixing deep sleep....
    Boot in EDL again and flash the following modem in QFIL:​
    (extract the zip before)​
    Step 7.
    Reboot the phone.​
    Go in network tab..​
    Switch the network mode to "GSM / WCDMA / LTE auto" ...​
    This one works for me.. you might have to put airplane mode or go in the *#*#4636#*#* and try different preferred network type.. (5g will never work on this phone....)​

    Step 8.
    Enjoy!​

    For other people enjoying early access to other A11 roms, or even Nemo's rom! The modem from step 6 should work fine with them (and will solve deepsleep issue). If you are a rom maker, please refer to this thread when adding the modem to your rom :)

    Have a nice day.
    Cloud1250000

    ps. Time to sleep