Can not get into Download/Fastboot mode. - AT&T LG V10

Hey !
I bought a used LG V10 H900 from market yesterday. It's on Android 5.1.1 with software version H90010f. I'm not using an AT&T sim card, ofc. So I assume it had to be network unlocked (not sure about it. I'm new). Anyways, I wanted to update it to MM, found a thread showing how to force update it with ADB. But I realized the download mode or fastboot mode isn't there. "adb reboot download" simply reboots it, so does "adb reboot- bootloader" and "adb reboot fastboot". I assume download mode and fastboot mode are missing. What should I do?

Related

[Q] LG G2 (D800) boots only to fastboot mode

So my LG G2 popped up a message telling me there was an update available (yay lollipop). Having TWRP installed I didn't take the update at first. However, I found an app that allows you to switch between a custom recovery and a stock recovery. When I switched to stock, I booted into the recovery to test it and it worked. So I went ahead with the OTA. Instantly, my phone was stuck in fastboot mode and I cannot get into download mode or anything else at all. Any options anyone?
I'm trying to use fastboot with adb to re-flash the stock firmware now. When I open command prompt in the platform-tools folder and type in "adb devices" it shows none. When I type in "fastboot devices" it shows a question mark. If I type in "fastboot reboot" it will communicate with the device and reboot it. I can't tell if I have a driver issue or what the problem really is.

No recovery mode, no fastboot, no option to reinstall twrp

Hey folks,
i have a problem with my shieldtablet. The fastboot doesn't work properly. I cannot load anything via "fastboot flash blablabla.img". Minimal ADB and Fastboot just shows "waiting for device" and if i check the devices via "fastboot devices" is just shows nothing but the normal command prompt.
Then i did a mistake and flashed the twrp 3 version with an older one, so i am unable to enter the recovery-mode. If i chose Recovery Mode via bootloader (or if i restart the tablet into recovery mode) it has a short bootloop and then after some trials it starts normal into Blisspop.
How could i flash this without the fastboot? Is there any trick i could use?
The tablet is unlocked. I had several custom-roms installed. Currently Blisspop 6.4 without playstore.
That looks like your PC is not seeing your tablet. Boot into fastboot mode, connect it to your PC and look in Windows device manager for the device.
Thanks a lot! ADB worked fine on Win10. Last time I flashed the recovery was on my old Win7-System. It seems, that the Upgrade deleted just the fastboot drivers.
One last question: is it normal, that if i chose the fastboot protocoll entry on the bootloader, that it restarts the bootloader?
Yes, that's normal. The menu entry is redundant because when you see it you are in fastboot mode already.

Phone wont go into bootloader. How to root + flash new recovery?

Hello. I can't get my phone rooted in any way.
I want to Root so I can use TWRP app to flash TWRP recovery .img, and after that I can boot into TWRP recovery and flash new ROM. Correct????
What I've tried so far. OppoTools 1.6.5 = One key root gets hard stuck on Oppo logo at start-up and then I have to flash Coloros ROM again from recovery. Also KingRoot says app not installed. On windows version of KingRoot it gets to some percentage and then it Fails.
I have downloaded "unlocked bootloader" Coloros from this forum that was mentioned before ( Dropbox link )
I have also tried two different ColorOs versions.
I have installed 15sec ADB installer.
I plug my phone into PC and run CMD.
I type adb devices into command prompt and it detects my R7 plus.
then I try to command " adb reboot bootloader "
Phone restarts normally and doesnt go to bootloader. Tell me if im stupid, but isn't Bootloader different than Recovery? Because I can get to recovery command "adb reboot recovery"
I tried some weird button combination Vol+ Vol- + Power and phone semibricked for awhile and PC didnt even react USB driver correctly and almost waved the white flag on this case.
I've enabled USB-debuggin and OEM unlock from devices dev-options.
When I to type command "fastboot oem unlock" on command prompt is says Waiting for device. Nothing pops-up on device and nothing happens.
So now Im stuck on situation that my phone doesnt launch into bootloader where presumably "fastboot oem unlock" would work?
If you have flashed the version of Color OS that has bootloader enabled, you should simply need to go into the settings, enable USB debugging and OEM unlocking, then shutdown the phone before holding the power and volume+ buttons and waiting the ADB bootloader screen. After that, just plug it into the computer and follow the guide on flashing twrp with ADB.

Cant get to boot the phone to fastboot

I have a LG stylo 4 and i was trying to root it, well i saw here that some had problems doing so, but i gave it a shot, i was able to enable OEM unlock, and usb debugging, i found boot.img file and i was about to root.
But when i plugged in the phone to my pc and opened adb and entered the command "adb reboot fastboot" the phone just restarted normally. i tried "adb reboot recovery" i the screen saying "no command".
Now the only thing i got to work with adb was to use sideload, when i did this, i got adb to be able to talk to the device.
im wondering if i can use sideload to root the phone?

Oneplus 6 in Fastboot Loop

Hi,
i'm facing the problem that my phone only starts in "FastBoot Mode" at least i guess that's the mode.
OnePlus 6 with root.
It happened after i rebooted after installing an OTA Update and installing a Magisk Manager Update.
I used the method described here. The last few times it worked perfectly.
But now the only thing that happens when i try to boot the phone is a screen that says
FastBoot Mode
PRODUCT_NAME - sdm845
VARIANT - SDM UFS
BOOTLOADER VERSION -
BASEBAND VERSION -
SERIAL NUMBER - d8a34971
SECURE BOOT - yes
DEVICE STATE - unlocked
with the volume button i can select "START, Restart bootloader, Recovery Mode and Power off"
but nothing happens when i select e.g. Recovery Mode, or simply START.
The phone shows the boot logo for a second, then I'm back at the screen with "FastBoot Mode"
I installed the USB-drivers for the device and can find it with my PC when i type "fastboot devices" in the command prompt.
But that's pretty much all. I don't know how to continue.
I would be very glad if i could keep my data, is there a way to save my phone and if not how do i install the normal OS again?
I really hope someone can help me here.
Edit:
When I type "adb devices" it says "List of devices attached" but there is no entry.
USB-Debugging is on, since the Root-process i didn't touch the developer options
So should be the USB mode for file transfer (MTP)
I'm not sure if i checked the "always allow from this computer" setting
So following this guide the only thing i can't do is checking the prompt for USB-debugging since i can't boot the OS.
Is there anoter way to get a adb connection?
[ROM][STOCK][FASTBOOT][OP6] Stock Fastboot ROMs for OnePlus 6
Things are changing with the advent of project treble and seamless updates. OnePlus will no longer release ROMs flashable via stock recovery (with twrp is possible but not recommended). The updates will be done on the slot not used for example...
forum.xda-developers.com
For everyone that can't connect to the device via ADB but fastboot, this does the trick.
Thank you guys!

Categories

Resources