H818P Boot Problem - G4 Q&A, Help & Troubleshooting

Hello, help me pls
My LG H818P can't boot
I tried to enter download mode but i can't
After i pulled the battery, i pressed volume up and i connected usb cable, it appears a battery icon with a flashing red question mark
I also tried with the battery and usb cable and i get some red led blinks for few seconds

Related

[LG KS20] after flash ROM, can't plug on USB cable

I upgraded my LG KS20 phone, and after re-boot, I plugged on my USB cable
with KS20 to PC...terrible thing happened.
the desktop was gone and re-boot with "LG" logo, and then .....
a "slide on battery" message shown, and then powre off automatically.
i can't boot it by press the power on button, unless the battery off and on.
still , i can power on under the condition without USB cable plug in.
I can't restore my NV file, only under the emergency mode and ROM re-flash.
anyone can solve this ?
thanks.

[Q] Lost recovery

The title explains everything.
Some how i lost recovery and after the try to flash the latest updates by lg stacked at a black screen while led changes from red to green color. Pulled out the battery but phone only boots to the same.
Until now phone is unusable.
Any fix would be appreciated.
Try booting into download mode by turning phone off, then press volume up while plugging in usb cable connected to pc. If he does that you can restore by flashing a.kdz

My lg g2 showing LG logo only and restart.

Hey all.
I'm new here.
1 week ago I bought an LG g2.
That is basically sprint phone(ls980) but seller did something with software to make it like D802.
I dialed 3845#*802# and a menu opened from there I reset hard and now I have problem with my lg g2.
When I Turn it on it shows LG logo for 5 seconds and restart and then again shows LG logo and restart and so on.
When I put usb cable or charger it shows LG and restart.It is not showing charging or anything.
I try to enter in download mode but when I hold volume up and connect usb cable it shows android logo and a text "erasing" and then shows another text"update system" and restart again.
I also try to enter in recovery mode but it showing Recovery Mode(loading) and after 3-5 seconds it restart again.
My pc/laptop is not detecting my phone.
Only one Mode is which is hardware control mode.
I'm very worried.
Please help me.
:crying::crying::crying::crying::crying::crying:
Please try to go to fastboot mode.

Samsung Galaxy J6+ flashing crash - Boot loop endlessly

Hello,
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 automaticaly 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 ?
Bro, its just discharged when you flashed it
Help Please
User said:
Bro, its just discharged when you flashed it
Click to expand...
Click to collapse
I am getting same issue but each time its on charge it reboots and I can see the screen getting laggier ! And its 3 hour in charge and It still persisits. So should I charge it overnight while its still in boot loop?
---------- Post added at 06:40 PM ---------- Previous post was at 06:35 PM ----------
iddik said:
Hello,
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 automaticaly 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 ?
Click to expand...
Click to collapse
Did you fix the issue? please Help me if you did. I am getting same issue right now on my moms fone same brand j610f please do help.
Hello, I got the same problem. This happen because the battery is empty and the only way to charge again is open the phone and extract the battery to charged it with a external power supply
I recently tried to install a custom ROM in my samsung j6+ but halfway through it my PC turned off.
Then the problem starts i decided to reboot my phone but it shows this error "No command" " #Reboot recovery cause is [[check_bootmode]RebootRecoveryWithKey]#
Block-based OTA
Supported API: 3
# MANUAL MODE v1.0.0#
E:Failed to mount / cache: Invalid argument
The error message keeps appearing for just a fraction of a second then disappear and appear again
I tried to go to recovery mode but no luck i cant get to it
I drained the battery to turn off the device then go download mode but after get to it, it also keep restarting
help me please. thank you
iddik said:
Hello,
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 automaticaly 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 ?
Click to expand...
Click to collapse
Have you got the issue fixed on you phone?
Since you can reach download mode - why not doing a clean flash with the correct firmware?

Cannot Boot LG G3 Beat (D723TR) After Flashing

So when I try to install TWRP (for Lineago OS) I was getting the "fastboot_init" screen and wasn't able to pass it. After some research I found out that my software may be the issue, so to turn the normal state of my phone I flashed this kdz file with LG Flash Tool 2014 in Download Mode.
After that, I booted. I was able to hear the constant starting song with black screen right after I saw the LG logo. After restarting the phone, I'm only able to see charging info and a red light when I plug a usb.
Notes:
- I tried to force restart with Power + Volume Up combination.
- First photo is not mine (shows the same thing)
Problem solved. Try the keyword "soft bricked".
Note that you enter the download mode if you, unplug battery & USB and press Volume Up connect the usb that you attached it to a PC.

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