Develop Bugs

Unable to enter download mode

So i discovered a strange thing from my G3 while trying to upgrade to 10E. My phone is unable to enter download mode to flash the update. I have done the procedure a in the flashing thread:
-turn off phone
-unplug USB
-hold down volume up
-plug USB
i can head windows play the device connected sound then proceed with the phone just displaying the normal charging display.
also, adb reboot download does not work, adb reboot recovery does.

PrimaryComplex said:
So i discovered a strange thing from my G3 while trying to upgrade to 10E. My phone is unable to enter download mode to flash the update. I have done the procedure a in the flashing thread:
-turn off phone
-unplug USB
-hold down volume up
-plug USB
i can head windows play the device connected sound then proceed with the phone just displaying the normal charging display.
also, adb reboot download does not work, adb reboot recovery does.
Click to expand...
Click to collapse
I had same issue, just make sure that you plug in the USB cable fast after you hold the volume up and also make sure you continue to hold the volume up.
Sent from my LG-D855 using Tapatalk

I tried a thousand times but every time it just start up mobile phone instead of going to Download Mode.

Remove the battery for a few seconds and be sure to plug into usb 2 and not into usb 3 port on your pc

I tried that too. Removed battery for seconds and connected to USB 2.0 but same issue. I wonder it connects to PC and LG Pc Suite without any problems. I'm sure all rivers are already installed but wonder why it can't enter download mode.
I lost LG original USB cable and use other cables ( I tried many ).
What's wrong then?!!! I even tried Windows XP and 8.1 but both same issue!

I'm having the same issue only I think it's because I really bricked my phone, not able to boot up or anything.

My gives me an error saying fast boot and a couple of commands with a black screen, Unable to get to download mode

LG G3 Stuck in Factory Reset Status 2

Hello there,
Today my rom (Xenon HD) stopped working and i wanted to get my old stock rom back.
So i started to downgrade, but in the end i ended up in the Factory Reset Status 2 after it shows the boot animation of an os called "mini os".
Anybody got experience on this ?
Thanks
Baschdi

Factory Reset 2
Baschdi_ said:
Hello there,
Today my rom (Xenon HD) stopped working and i wanted to get my old stock rom back.
So i started to downgrade, but in the end i ended up in the Factory Reset Status 2 after it shows the boot animation of an os called "mini os".
Anybody got experience on this ?
Thanks
Baschdi
Click to expand...
Click to collapse
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done

This is not working for me. it says waiting for connection, please help
i am frustrated !!!

likhil2k3 said:
This is not working for me. it says waiting for connection, please help
i am frustrated !!!
Click to expand...
Click to collapse
Try unplugging and plugging back in and ensure you are on PORT41 for the device driver. After you do that and in Download Mode, then unplug and replug USB.
Also do not use USB 3 and try another port if you still have issues.

Bhimani bhargav said:
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
I have same issue in my LG G3 D850 I have apply your procedure Thanks It works ... first time the setup screen completes but when i powered off mobile and insert the sim and then powered on its again going to miniOs again i Normal boot+(power) but now boot looping auto ... what can i do now ???

For me who had the same issue, I just rebooted the device back into download mode and the LG flashtool resumed automatically. (I did not close or stop the process from the LG flashtool when I got this message).
Once the process resumed automatically, I still got download fail.
I can see whenever the device reboots, the modem disappears from within device manager after getting to the "Factory Reset 2" screen.
Any advice?
Update: I tried about 7 times to get it flashed. I ended up just restarting the phone in normal mode and strangely voila it works perfectly. Even though the software said the flash failed, it still worked. Thanks anyway!

Bhimani bhargav said:
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
This worked. Tks a lot.

I just got a LG harmony and as i soon turned it on it went to factory reset status and I tried to bypass but it keeps taking me to Factory reset, I also tried the download mode which took me to firmware update for hours it has still been at 0%. Taking forever

Bhimani bhargav said:
Factory Reset 2
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
thank you very much ,it work succesful

Samsung Galaxy j6+ -

Hello,
I have a similar problem as iddik who is a senior member of this forum who have posted his query on the 30th of October, 2019..
See below is his post...
I have a problem with my phone : Samsung J6+ (SM-J610FN/DS)
I have crached a flashing Rom with Odin and I'm sure it is because of that my phone can't start by pressing the power button.
Now my phone has the message : An error has occurred while updating the device software. Use the emergency recovery function in the smart switch PC software ...
The thing is that it is rebooting and looping without end every 2 seconds on that green screen with that message ...
Only thing I can do is, with the USB cable connected, when the green screen is up, I can push VOL down + VOL up and I can go in download mode.... Then I can push on VOL up but right after the phone reboot in loop again and again ...
Another thing is that without USB cable connected I can't start the phone.
What can I do ?
First thing, I can't start my phone if it's not connected with the USB cable.
Second thing, when I connect my phone with the USB cable, it starts automatically even if I didn't push the power button and it's looping and blinking and rebooting endlessly.
Also the phone don't seems to know how charging himself when USB cable connected.
Is it a Bricked Samsung phone ?
If it is, how unbrick it ?

When you are in download mode, click on power button and volume down button, After the black screen appears or Samsung logo appears, leave the power button. You will get into Phone main settings. then after that factory reset the phone. Everything will start working again. (This happened to me as well.)

Cannot boot into download mode

Hi everybody, yesterday I was playing with my old Galaxy A50 trying to install a custom rom unsuccessfully.
I repeated the procedure three times installing TWRP and then Havoc OS but every time I tried to reboot from TWRP to OS I was stuck at the warning screen saying that the phone bootloader was unlocked and booting into download mode to reflash TWRP was blocked as it showed "only official binaries can be installed" (yes I installed Samsung disabler but still).
Still I was able to get the phone into download mode and reinstall the stock firmware as it seemed to be the only way to install and boot TWRP.
But at 4th time repeating the process I got frustrated, shut down the computer and left the phone on the warning screen still connected to computer usb cable.
Then I got back and noticed the phone was off as the battery died.
Indeed the battery died, so I put the phone in charging and after it reached 100% I tried to boot into download mode again to reflash stock firmware.
But here's the strange thing, I cannot boot into download mode anymore as pressing vol up+vol down while connecting usb cable, shows the lightning charge logo for 5 secs and then reboots infinitely with the same pattern.
If I force reboot by pressing vol down+power it shows the Samsung logo with the warning below it, then skips to another screen with another warning suggesting to press power button to continue (which does nothing) and after a while reboots to samsung logo.
So it doesn't seem it is bricked, it looks more like a battery controller fault, so I tried to detach the battery flex from the board, hoping it would reset the controller but it's still the same.
Also I tried with the flex detached and still no download mode is possible.
Was the download mode somehow erased? (if it's even possible considering it's the motherboard firmware)
If you need photos, videos or even a call on zoom, Skype, webex I would be glad to show you

same i got the same problem i can't find nothing for this when i press volume up and down and put the otg cable its simply charges but it gets stuck on the logo image there's no way to fix this but the only way is to open the phone,change the emmc and put one from samsung,close the phone flash a custom rom and you are done.

If you can enter recovery, do it. As soon as your phone gets into it, select the power off variant and then try to enter the download mode.
It seems like you did not unlock the bootloader, did you?

The bootloader Is unlocked i can't enter in the recovery because the phone locks on charging logo and its fully charged but when i try without charger It doesn't start.

A70 stuck in samsung logo and declines port.

I rooted my Galaxy a70 using vbmeta,Twrp and magisk. All was going well. Suddenly my phone turned off and when I press power button its shows download mode .so I tried odin to flash but every time it fails.After many tries I realise that its port are not connecting to pc ,its only charging and my pc also can't detect my phone ..now when I connect the phone to pc its shows samsung logo.its also not showing the battery percentage .
(My pc is ok it have all driver installed and odin works)
Is there anyway to solve.
Thanks.

reboot pc just to be sure.
connect phone and pc
on the phone in download mode screen, hold vol down and power till screen goes blank immediately let go and hold vol up and down to boot back into download mode. the letting go when screen goes blank to holding up and down needs to be fast.
now once back in download mode, is odin showing port number?
also make sure your using odin 3.13.3
if still no go, try uninstalling samsung usb drivers, reboot then reinstall and try the process again.

When I put cable in my phone it directly shows the logo....
Its not showing the battery

I tested my another Samsung phone to be sure that my softwares are working. And it's working but when I put my A70 in. Nothing happened