Stuck in Fastboot - LG V20 Questions & Answers

stuck in fastboot. Can't get anywhere else.

[5090]
[5140] Fastboot mode started

fastboot.exe continue returnes Unable to locat /bootselect partition

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how to enter fastboot command

hi
phone boots up but then ftm mode activates , how can i boot back into fastboot command to flash new recovery to the phone or is there any other way to flash a recovery.img file .

Zenfone 2 ze500kl can't boot itself after power on.

After I tried to root ze500kl with mod_boot.img by
-fastboot erase userdata
-fastboot erase cache
-fastboot flash boot mod_boot.img
after it reboot can't boot and stuck on bootloader screen, I can reboot and enter recovery mode and user adb and fastboot command boot boot.img (boot.img form firmware UL-ASUS_Z00E-WW-12.8.5.156-user.zip)
-fastboot boot boot.img
so it can pass bootloader and can user normally but if I restart my device it will always stuck on bootloader I must usr fastboot command to pass it again.
anyone can fix this issue for me?
Hi
i have this problem too, have you fixed it in meanwhile?

nexus 7 bricked! need help

so i tried flashing the 4.3 stock image i downloaded from the google website for the grouper. i had already bricked this tablet before by accidentally unplugging it while it was flashing the boot loader. I just paid 30 dollars and received a new motherboard from eBay last week, and started playing with my nexus 7 again. This time, I made sure to not touch the boot loader as I noticed that the bootlaoder on my grouper and the one in the image archive were both 4.23. So first I issued the commands
Code:
fastboot oem unlock
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
i went ahead by issuing the command
Code:
fastboot -w update image-nakasi-jwr66y.zip
it started flashing, but my annoying brother came in and closed the screen of my macbook. When I opened it again, the fast boot mode was still showing on my nexus, but the flashing on terminal had stopped. i quit terminal and opened it again. i typed:
Code:
fastboot devices
and my tablet showed up as normal. However, when I tried to issue any command, terminal would just display a blank space. I then selected reboot boot loader on my nexus, but the device just turned into a black screen, exactly the way it appeared last time i bricked it. I'm so frustrated and confused. Why is the device refusing to go into the boot loader using power-volume down if I didn't even touch the boot loader? At the most my device should only be soft bricked. I checked the contents of image-nakasi-jwr66y.zip and the contents were
Code:
android-info.txt
boot.img
recovery.img
system.img
userdata.img
I don't think these have anything to do with the boot loader?
the flash log didn't show any evidence of touching the bootloader except the check part where it checked the boot loader version, which was reported as 4.23.
If someone could provide me with assistance it would be greatly appreciated!

Cannot flash anything < waiting for device > but found in fastboot devices

Hello, I am trying to flash TWRP to my zenfone, I managed to do it once by some miracle with the exact same setup as I have now.
by typing fastboot devices I get K6AXB7616289*** fastboot
but if I try to flash anything with the phone connected I get no output at all.
If I try to flash with the phone disconnected I get <waiting for any device> and no change when I connect it.
In both of these cases when I disconnect the phone I get:
Sending 'recovery' (31332 KB) FAILED (Write to device failed (No such device))
fastboot: error: Command failed
It is overall wonky and seems to change depending on nothing. Sometimes while writing sudo fastboot reboot bootloader I get to the bootloader as expected, but sometimes I get an error but still manage to get to the bootloader and other times it boots up normally.
I am running ParrotOS from a USB
I also posted in here as my problem is very similar but I hope this post resurrects this particular topic: https://forum.xda-developers.com/t/...but-fastboot-devices-is-working-fine.4295449/
What commands are you using?
Fastboot flash boot boot.img?
The boot.img could be the twrp.img renamed to boot. Img but it should be to recovery I believe.
Fastboot flash recovery twrp.img
Yeah im writing fastboot flash recovery and then the path to my twrp.img. I managed to flash it once after a lot of struggle but now I can't do it again.
After posting I saw that I'm using a USB 3 port and my laptop doesn't have a usb 2 one so I think that might be the issue.
Considering I can get three different outputs from the same command in the span of a couple seconds I think that the problem might be hardware related. I can update once I get my hands on a USB 2 port.
Kaynejulian said:
What commands are you using?
Fastboot flash boot boot.img?
The boot.img could be the twrp.img renamed to boot. Img but it should be to recovery I believe.
Fastboot flash recovery twrp.img
Click to expand...
Click to collapse
I have now tried with a USB 2 port and there is no change.
I have had issue when the phones in fastboot and I'm able to flash via his method. Using platform tools I copy all my IMg's into the folder then open a command prompt window in that folder and fastboot reboot bootloader or fastboot reboot fastboot. Which I learned the hardway is fastbootd mode and then and only then did it actually flash. I also learned the hardway that you boot directly from in fastboot mode or it all just cycles back.
Fastboot reboot.
What version zenfone model and what is system is it running?
If your device is running android 10 or newer then is a different process as you'll need to flash the super.img rather than individual imgs like system vendor product ect
Tue shore image also means it matters where you flash the img
Get a fastboot getvar all printout to me and I'll do what I can to help u get it running again

can‘t install or boot images on Oneplus 6t

Hi! My goal is to install twrp recovery on my Oneplus 6t but when i flash it with the command fastboot flash boot twrp.img it does just boot into fastboot mode and the OS is deleted. i can’t use the command fastboot flash recovery twrp.img because i believe i have an A/B Partitioned device because everytime i use this command it says soemthing like: can’t find recovery_a. I can‘t use the command fastboot boot twrp.img because everytime i use this command the phone is stuck on the fastboot splash screen. I need help!
You should flash a fastboot rom of your device to fix this problem
The command is fastboot boot twrp.img. You can only boot it not flash it from fastboot. Once In twrp you can make it permanent in the settings

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