Bootloader Mode - LG V40 Questions & Answers

My lg v40 LM-V405UM cannot enter fastboot mode by command adb reboot bootloader.When command phone dose not enter fastboot mode and it goes restart phone.How can i solve it.Android version is 9

phoe zay said:
My lg v40 LM-V405UM cannot enter fastboot mode by command adb reboot bootloader.When command phone dose not enter fastboot mode and it goes restart phone.How can i solve it.Android version is 9
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V405UM? What carrier?

Ainz_Ooal_Gown said:
V405UM? What carrier?
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US unlock.Ram 8 256Rom

phoe zay said:
US unlock.Ram 8 256Rom
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Okay so V405UA is US carrier variants (Sprint, Verizon, At&t)
And V405QA is US unlocked.....so what I'm asking is what is V405UM.....

Ainz_Ooal_Gown said:
V405UM? What carrier?
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405UM is the modfide module of 405UA, RAM or ROM chip.

Dont know if the right one to put this on but what is causing this?

Related

i have question !!!

How to root V40 version KOREA V409N ??
so the ebw has no fasboot?
what about this guide by Xsavi : https://forum.xda-developers.com/lg-v40/development/unlock-lg-v40-via-9008-root-t-mobile-t4042207
What rom have fastboot ???
sondv04199 said:
What rom have fastboot ???[/QUOTE
are you on stock rom? no bootloader unlocked or anything?
Turn off phone and hold Vol- and plug in usb it should go into fastboot
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KouaV1 said:
sondv04199 said:
What rom have fastboot ???[/QUOTE
are you on stock rom? no bootloader unlocked or anything?
Turn off phone and hold Vol- and plug in usb it should go into fastboot
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my phone is v40 korea v409n . how root it ???
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sondv04199 said:
KouaV1 said:
my phone is v40 korea v409n . how root it ???
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be on android pie and check that link i gave you
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Done . Closed !! Thx KouaV1

Question Can't reboot to fastboot

I have been able to see a device when using the command
adb devices
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with my realme 8. But when I use the command
adb reboot fastboot
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My phone shuts off, shows realme logo, and then shows the message
the serial is not match
fastboot unlock verify fail
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for a few seconds and then reboots to system. I have not unlocked the bootloader of this phone nor rebooted to fastboot ever since I bought it. Is it normal for a locked bootloader to show this message? Or is something corrupted in my boot sector or system files? Please help me. Thank you.
ryxnrxwxll said:
I have been able to see a device when using the command
with my realme 8. But when I use the command
My phone shuts off, shows realme logo, and then shows the message
for a few seconds and then reboots to system. I have not unlocked the bootloader of this phone nor rebooted to fastboot ever since I bought it. Is it normal for a locked bootloader to show this message? Or is something corrupted in my boot sector or system files? Please help me. Thank you.
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Realme 8 can't access fastboot you have to use bypass method
Karanrana1911 said:
Realme 8 can't access fastboot you have to use bypass method
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oh, so it's normal that fastboot is inaccessible for those who never even touched the bootloader?
ryxnrxwxll said:
oh, so it's normal that fastboot is inaccessible for those who never even touched the bootloader?
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Yes but in reamle 8 no fastboot available..other wise its easily accessible

Question Fastboot

For some reason when I boot in to fastboot it's not the rabbit no more it just say fastboot orange letters anyone one know way?
joedeegee74 said:
For some reason when I boot in to fastboot it's not the rabbit no more it just say fastboot orange letters anyone one know way?
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just the new fastboot design.
NOSS8 said:
just the new fastboot design.
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thank you
NOSS8 said:
just the new fastboot design.
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but when i plug it into xaomi pc suite it says try connect in normal mode then switch it

Question Soft bricked Orange fastboot

Hello guys I am in a bit of a trouble my phone is soft bricked I have a redmi note 10 5g china version and I tried to flash the global rom 13... and It didn't work and now m stuck at an orange fastboot and my I guess my bootloader is locked too m really lost can u help
naouf said:
Hello guys I am in a bit of a trouble my phone is soft bricked I have a redmi note 10 5g china version and I tried to flash the global rom 13... and It didn't work and now m stuck at an orange fastboot and my I guess my bootloader is locked too m really lost can u help
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Go to FASTBOOTD mode and restore stock. Or any other ROM.
viktak said:
Go to FASTBOOTD mode and restore stock. Or any other ROM.
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I think the bootloader is locked
naouf said:
think
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Is it or is it not? Did you unlock it before experimenting with it? It's kind of important...
viktak said:
Is it or is it not? Did you unlock it before experimenting with it? It's kind of important...
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Yes it was unlocked before but after I used clean all and lock in the miflash tool it got locked
What happens when you connect the phone to the pc and issue fastboot reboot fastboot?
Can you get to BROM mode?
Idk how to enter the brom
For brom mode, press and hold vol up, vol dwn, or all hw buttons and connect usb.
viktak said:
What happens when you connect the phone to the pc and issue fastboot reboot fastboot?
Can you get to BROM mode?
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Idk how to enter to the brom mode
viktak said:
For brom mode, press and hold vol up, vol dwn, or all hw buttons and connect usb.
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Okay I got to it
Recovery
Fastboot
Normal

Question HELP, Cant get it in fastboot mode

so i downgraded my redmi note 10s to 12.5 global but after I flashed I can't get it to fastboot mode
I was planning to install PE so when I try to enter fastboot mode through adb/hold volume - and power button
it just restart, no fastboot mode
Give it a try with the adb command and Debug USB enabled
adb reboot bootloader
zSyntex said:
Give it a try with the adb command and Debug USB enabled
adb reboot bootloader
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I tried it already but it just restarted
abusidhique said:
I tried it already but it just restarted
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Probably fastboot partition is gone
I'll try to get to recovery directly and flash the stock again
Let me know
zSyntex said:
Probably fastboot partition is gone
I'll try to get to recovery directly and flash the stock again
Let me know
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how do I get to recovery directly I am new to this
abusidhique said:
how do I get to recovery directly I am new to this
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Same way, change bootloader to recovery
adb reboot recovery
zSyntex said:
Same way, change bootloader to recovery
adb reboot recovery
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thanks, bro I will try that

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