Database Users

[Q] LG G2 D802 can't get into download mode

Hi
need help!!!!!
My phone is completely messed up.
i got an update form LG.
after installing it the phone got suck in boot loop.
I has CWM installed.
i but could and even when try to install new rom it was still in boot loop.
i installed manual via adb commands TWRP.
and then thing became real bad.
no after it powers up i get the LG logo.
1 sec after i get few error codes and then black screen without ADB support.
i trierd to get into download mode after reading in forums that only this can help.
but I can't.
I powered down my phone in all possible methods:
power 10sec, power + V- 10 sec, power + V+ 10 sec.
after the phone is off i tried power it back into download mode with the next combinations:
power + V+ and then USB, power + V- and then USB,power + V+ and V- and then USB.
did not work.
can't get into download mode.
I will be happy to get some help.
Thanks
Ran :good:

sorry was wrong.
try turn phone off, add usb, then press volume up. I think that's it.

Hi
did no work also

I am having the same problem, went to lg service centre, they could not enter download mode as well. I might need to change the circuit board for $321 singapore dollars..

Hi
i think you have to use this fix: http://forum.xda-developers.com/showthread.php?t=2582142

This happened to me,
Try holding the power and volume down hold until lg logo, let go and press and hold the volume down and power again, it should get you in recovery.
It might get you into a screen called "Factory hard reset" Agree using the power button, and it should take you to your recovery, and try flashing a ROM along with the Gapps (if you want, which I did) and then I used a recovery file after booting back into recovery to restore it to my previous state.
Good luck :good:

Shut down phone
From what I got from this, you're having problems shutting down your phone, correct? It keeps booting back up after the screen goes black? If this is the case, hold the power button (and don't let go) until it goes black, reboots itself, then goes black again. Shouldn't take more than 2 seconds after rebooting to shut down. Then, you can do volume up + USB to get into download mode.

Ben_Z98 said:
From what I got from this, you're having problems shutting down your phone, correct? It keeps booting back up after the screen goes black? If this is the case, hold the power button (and don't let go) until it goes black, reboots itself, then goes black again. Shouldn't take more than 2 seconds after rebooting to shut down. Then, you can do volume up + USB to get into download mode.
Click to expand...
Click to collapse
Thanks for your help,it sorted out my problem! :good:

My rooted sph-l720 will not boot!! Please help!!

I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...

ChrisHebert said:
I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...
Click to expand...
Click to collapse
What about volume up + power? if recovery boots you can try to flash in that otherwise you are stuck trying to use odin

ChrisHebert said:
I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...
Click to expand...
Click to collapse
Try going into recovery mode again by pressing get down the volume down and home button than finally the power button. The phone should vibrate and then as soon as the Samsung logo comes out let go of the buttons or else the phone will reboot again. Time it right so it goes into recovery

droidtom said:
Try going into recovery mode again by pressing get down the volume down and home button than finally the power button. The phone should vibrate and then as soon as the Samsung logo comes out let go of the buttons or else the phone will reboot again. Time it right so it goes into recovery
Click to expand...
Click to collapse
Have you fixed this issue, volume up +home+power is recovery mode, volume down+home+power is to download mode then u press up to complete

Rezzing old thread, I know. But I'm leaving this here in case anyone is poking around for clues to their s4 not powering on.
I have one that does not power on, as in bo combination of "press this and that..." is going to work (as if that isnt the first step in troubleshooting...I know not everyone does it right, but its really annoying when any post mentioning no power on/not responding to any key presses or charger plugin is full of "just try harder to boot it" posts..... Anyways...) The power pins register about half a volt, surging around from 100mV to ~3V . The battery does not charge and there us a constant slowly draining voltage on the power pins while unplugged and no battery.
The only clue Ive found so far us a youtube video of a no power on S4 having its power IC replaced which fixed it. Unfortunately I dont have the tools currently to try it, so at least mine, is still dead in the water.....

Random reboots and now black screen

Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks

Dave O said:
Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks
Click to expand...
Click to collapse
As the device switched off press the Power Button together with the Volume Button down, when the device vibrates, release the Power button and only keep the volume down button until the device starts up to the start screen appear.

ArthurC1 said:
As the device switched off press the Power Button together with the Volume Button down, when the device vibrates, release the Power button and only keep the volume down button until the device starts up to the start screen appear.
Click to expand...
Click to collapse
Hey sorry for the late reply... I did try that. I can't even force a reboot when it's stuck.
Sent from my SM-G930W8 using XDA Labs

Dave O said:
Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks
Click to expand...
Click to collapse
You can enter download mode right ?
why don't you try installing TWRP recovery with ODIN
Go to TWRP website... and find your device
download .img.tar file
open odin and insert this file in AP tab and in the option tab (disable "auto reboot" )
( plug your phone via usb to your PC.)
on the log it will show (added)
hit start
once installed...press and hold vol down + home +power key (while it restarts) press and hold vol up + home+power key
You will now enter TWRP Recovery...swipe to allow modifications
wipe - > advanced wipe -> except sd card...select everything and wipe them (all your data will be gone)
now install any custom rom from this site..

Heroyt said:
You can enter download mode right ?
why don't you try installing TWRP recovery with ODIN
Go to TWRP website... and find your device
download .img.tar file
open odin and insert this file in AP tab and in the option tab (disable "auto reboot" )
( plug your phone via usb to your PC.)
on the log it will show (added)
hit start
once installed...press and hold vol down + home +power key (while it restarts) press and hold vol up + home+power key
You will now enter TWRP Recovery...swipe to allow modifications
wipe - > advanced wipe -> except sd card...select everything and wipe them (all your data will be gone)
now install any custom rom from this site..
Click to expand...
Click to collapse
I didn't try TWRP but I did try stock firmware from Samsung and Odin, said it passed but I couldn't boot the phone... Doesn't OEM unlock have to be checked in order to install TWRP tho? This phone was completely stock and never rooted.
Sent from my SM-G930W8 using XDA Labs

Dave O said:
I didn't try TWRP but I did try stock firmware from Samsung and Odin, said it passed but I couldn't boot the phone... Doesn't OEM unlock have to be checked in order to install TWRP tho? This phone was completely stock and never rooted.
Sent from my SM-G930W8 using XDA Labs
Click to expand...
Click to collapse
yes i know but have you tried it ? i thought advanced wipe might help as it will remove everything.

My S7 edge is also having similar issue. It just died 4 days ago at 5 percent battery and red LED kept blinking. I tried to hard reboot using Power + Vol Down, it didn't work. I couldn't get into the Download mode either. It doesn't charge when connected to the charger, not detected on any computer as well. Any thoughts?

ilikered said:
My S7 edge is also having similar issue. It just died 4 days ago at 5 percent battery and red LED kept blinking. I tried to hard reboot using Power + Vol Down, it didn't work. I couldn't get into the Download mode either. It doesn't charge when connected to the charger, not detected on any computer as well. Any thoughts?
Click to expand...
Click to collapse
I don't know but the more I Google it the more I see people saying it's a bad motherboard...
Sent from my SM-G930W8 using XDA Labs

Dave O said:
I don't know but the more I Google it the more I see people saying it's a bad motherboard...
Sent from my SM-G930W8 using XDA Labs
Click to expand...
Click to collapse
I plugged it in last night, after the battery was completely drained. It's been a week since the issue.
It was fine till this morning. I inserted the SIM cards and then connected to the laptop. I thought I would backup the data using smart switch before doing a factory reset. The backup went fine till 75% and then boom again turned off. This time there's a lot of battery left, and I might have to wait 4-5 days before it can be drained completely. But I'm now hopeful that it'll eventually turn on and when it does I'll immediately do a factory reset before doing anything else. I'm suspecting that a rogue app might be causing it. This time it might have happened while that app is being backed up. The LED is constant Red this time indicating the state it was connected to the laptop at the time of incident.

It turned on again last night when I connected the charger. It was showing the charging symbol. After 5-6 minutes of charge I tried to hold Vol - + Power buttons briefly to reset the device and it went off again. It's lying like a brick currently.

No sign of life again!

Samsung Galaxy s4 sgh-i337 boot recovery loop

Hello,
I have an S4 from ATT and after it ran out of battery last night it is now booting directly to recovery mode.
When I plug the charger it wont show the battery charging icon, it just makes a short vibration every like 10 seconds and the screen remains black.
I removed the battery and put it back again and tried to press volume down + power button to access the other mode but it wont allow me.
Since It just allows me to access the recovery mode, I performed a wipe data reset and it when through successfully but when phone restarted it took me back to the recovery screen again.
What can I do to fix this?

darcon_pr said:
Hello,
I have an S4 from ATT and after it ran out of battery last night it is now booting directly to recovery mode.
When I plug the charger it wont show the battery charging icon, it just makes a short vibration every like 10 seconds and the screen remains black.
I removed the battery and put it back again and tried to press volume down + power button to access the other mode but it wont allow me.
Since It just allows me to access the recovery mode, I performed a wipe data reset and it when through successfully but when phone restarted it took me back to the recovery screen again.
What can I do to fix this?
Click to expand...
Click to collapse
Boot up into recovery mode and look if it shows errors of any kind. There is a possibility that your phone may have an emmc failure. Its a hardware issue and not software related. There is a small chance it could be as simple as getting a new battery but I doubt it.

Galaxy A40 infinite loop - impossible to turn on

Hi!
I have a problem with a galaxy a40 device, I flashed a stock ROM with Odin, everything went fine, green lights, PASS and all, but now the device just won't go pass the SM logo anymore. When I turn on, logo appears 2-3 secs I get a warning of the unlocked BL then logo comes back and after a second the phone restarts itself and the same goes on forever ( well about several hours, and after that it just shuts off somehow ). I cannot enter recovery mode or download mode at all. I keep pressing the combinations Power + Vol Down, Power + Vol Up, All three and every combinations I have just found on the internet so far. Odin doesnt recognize the phone, which is not a surprise since it won't start up. I have tried with adb but waiting for device is all I get.
How is it even possible that I cannot enter download mode at all? There was no problem with the physical keys, and the power still works, I cannot test the Vol buttons tho.
Has anyone ever had a problem like this? How can I come back from this? Is there a way to flash a ROM without download mode or turned off phone?
Thanks for any help!!

The download mode for this model is different from previous Samsung's :
IIRC, with the phone off, you need to hold VolumeUp and VolumeDown, then plug in the USB cable connected to a computer (you may need to press Power to power up the phone, I can't recall properly).
From there, you should be able to restore a stock ROM with Odin.
Let us know if it helped !

gmarko247 said:
Hi!
I have a problem with a galaxy a40 device, I flashed a stock ROM with Odin, everything went fine, green lights, PASS and all, but now the device just won't go pass the SM logo anymore. When I turn on, logo appears 2-3 secs I get a warning of the unlocked BL then logo comes back and after a second the phone restarts itself and the same goes on forever ( well about several hours, and after that it just shuts off somehow ). I cannot enter recovery mode or download mode at all. I keep pressing the combinations Power + Vol Down, Power + Vol Up, All three and every combinations I have just found on the internet so far. Odin doesnt recognize the phone, which is not a surprise since it won't start up. I have tried with adb but waiting for device is all I get.
How is it even possible that I cannot enter download mode at all? There was no problem with the physical keys, and the power still works, I cannot test the Vol buttons tho.
Has anyone ever had a problem like this? How can I come back from this? Is there a way to flash a ROM without download mode or turned off phone?
Thanks for any help!!
Click to expand...
Click to collapse
Here the same problem, have a40 in loop and never get rocgnized for computer, tryed many different cables, and installed a booring large amount of drivers software and nothing...

you need to power off device completely. let battery drain if you can't shut down. press and keep holding volume down + plug in usb cable for Odin3 (I doubt both?)

aIecxs said:
you need to power off device completely. let battery drain if you can't shut down. press and keep holding volume down + plug in usb cable for Odin3 (I doubt both?)
Click to expand...
Click to collapse
Generic answers, repeated 800 times why really need to waste a post with that? and that not was the problem:
1- For no usb recognition, is this phone bad design, in the back tap where is the battery in the samsung logo more or less if you push with fingers and charge is because the design of baterry is so crap and your usb port goes off when the under tap cable moves or just get little out of conection. If you can get working after push, usb on phone will do too.