Develop Bugs

LG Optimus stuck on LG splash screen and no recovery mode

So the issue i'm having is when put my battery in or plug the phone into any power source it boots up and stops at the lg splash screen. I have tried going into recovery mode via power + vol down key combination and it dose not allow it in it just stays on lg screen. the other issue is when i plug it into my computer i get a notification saying that the usb device is not recognized i have tried putting it to usb mode via power + vol up key but still no dice. This happened after flashing cyanogen 7 to my phone it worked fine for a few days then i turned it off one night as to not be bothered with calls. the next morning it started this problem. i have browsed the forums looking for a solution none of which seem to have worked. any insight into this would be nice
notes:
-can not get into recovery mode / cwm
-can not put to usb mode
-for the issue with it not being recognized by the computer i have tried 3 different cables on win 8,7 and vista and on both my laptop and desktop using different usb ports. going to try xp tonight
-exact device model = P925g Optimus 3d with Rogers canada.
-to the forum admin pleas feel free to move this thread into the right section if i posted in the wrong one

Turn the phone off
Hold down the volume down key and then plug in the USB cable. See if you get something.

this forum is for the optimus g. not sure if that is what u have.

EMERGENCY Brick!

hi,
any help is hugely appreciated.
I wiped my phone in recovery with the option to wipe for new custom rom, this worked fine. when i went to install custom rom it failed and then turned itself off. now the phone just gets stuck at the Sony logo. the only way i can turn it off is via the red button in the sim slot.
I am unable to connect to the computer at all, no fastboot. I'm also unable to boot into recovery to restore.
Please help. Hope i haven't ****ed it up beyond fixing
Thanks

Flash a stock ftf with flashtool (in flashmode). You should definitely get into flashmode and fastboot, otherwise there is a problem with your computer.

Funny, I didn't even know there was a red button Holding Volume Up + Power for a few seconds always worked for me, no matter in which state the phone was.

Hi all,
I've exactely the same problem !!!
My phone stuck to Sony logo, and not reconyze on my 3 PC.... before that, usb connexion work fine on all PC, but now.... nothing
I've just POWER + and VOL+ (its power off the phone), i've no led color light
I've try flashboot, but not detect my phone
i've try to install :
flashtool-0.9.16.1-windows (not detected)
Flashtool-drivers-1.5-20140318 (my computer doesnt not see my phone)
Xperia_Z1_Compact_driver (my computer doesnt not see my phone too)
I can't go into Flashmode...
When i power off my Z1c, and i plug usb + (vol+) nothing appear...stuck Sony logo...
I'm lost... I need your help XDA members ! just U can help me
PS : the red button is in the SIM slot, but i think is same POWER + (VOL+).... its power off the phone

Because you're doing it wrong. Vol+ enters fastboot mode, you have to press Vol- to enter flashmode. Then use Flashtool to restore the firmware.

Iruwen said:
Because you're doing it wrong. Vol+ enters fastboot mode, you have to press Vol- to enter flashmode. Then use Flashtool to restore the firmware.
Click to expand...
Click to collapse
THX for your response !
Sorry it's a mistake....
I've try both (vol+ and USB) and (vol- and USB).... but no sound (device not detected), in device manager nothing appear too.
I've make a fresh install of windows 7 x64 on another PC.
I finaly working to boot (2-3 times) with Vol- + USB cable, but stay in sony logo and Flashtool whait for device...
Please i need u're help beacause i'm really lost (usualy i flash many phone S4, Mediatek, phones, etc...) but now i dont find solution

My problem come from the original cable
All this because of the USB cable does not work ... CRAZY !
This USB cable is new and original sony... just 2 Weeks
I solved my problem with new one

That's unfortunate, good you found the issue.

[Q] Black Screen.Vibrates,Nothing Else

I've looked around on several forums and it seems that this problem has been around for a while but every thread I see is for a rooted XPlay while mine isn't rooted or unlocked BL so I decided to make a thread
Problem:Woke up, pressed power button, phone vibrates, nothing.I've tried taking battery out and putting back in and it didn't work
I have tried charging it too but nothing
Status: No Root Access Locked BL
basically i can't find anything, I sent it to a repair shop but they called back and said that they can't identify the problem so I'm going round either tomorrow or later today to pick it up, I'll keep note of any methods and try them when i get the phone back
So has anyone got any idea of how to fix it or had a similar problem?

DopeAssSwagGuy said:
I've looked around on several forums and it seems that this problem has been around for a while but every thread I see is for a rooted XPlay while mine isn't rooted or unlocked BL so I decided to make a thread
Problem:Woke up, pressed power button, phone vibrates, nothing.I've tried taking battery out and putting back in and it didn't work
I have tried charging it too but nothing
Status: No Root Access Locked BL
basically i can't find anything, I sent it to a repair shop but they called back and said that they can't identify the problem so I'm going round either tomorrow or later today to pick it up, I'll keep note of any methods and try them when i get the phone back
So has anyone got any idea of how to fix it or had a similar problem?
Click to expand...
Click to collapse
Download and install Sony's PC Companion
Download and install flashtool ( flashtool.net )
Try to repair with PC Companion first
IF that doesn't work, start flashtool and connect phone in fastboot mode (power off, hold search button and plug in usb cable to pc). Flashtoolt should report that it is in fastboot mode.
If that doesn't work try as previous, but in flash mode (hold back button, then plug usb cable to pc)
If that doesn't work, connect phone to pc and start to power on. Does windows play sound of usb device connected? Look under device manager in windows is there any unknown item listed.

Bakisha said:
Download and install Sony's PC Companion
Download and install flashtool ( flashtool.net )
Try to repair with PC Companion first
IF that doesn't work, start flashtool and connect phone in fastboot mode (power off, hold search button and plug in usb cable to pc). Flashtoolt should report that it is in fastboot mode.
If that doesn't work try as previous, but in flash mode (hold back button, then plug usb cable to pc)
If that doesn't work, connect phone to pc and start to power on. Does windows play sound of usb device connected? Look under device manager in windows is there any unknown item listed.
Click to expand...
Click to collapse
I guessing i dont need root or an Unlocked BL for flashtool?
But I do have a problem, I think my usb cable is busted as its gone a bit wierd so i will have to wait longer to try these out.

Bakisha said:
Download and install Sony's PC Companion
Download and install flashtool ( flashtool.net )
Try to repair with PC Companion first
IF that doesn't work, start flashtool and connect phone in fastboot mode (power off, hold search button and plug in usb cable to pc). Flashtoolt should report that it is in fastboot mode.
If that doesn't work try as previous, but in flash mode (hold back button, then plug usb cable to pc)
If that doesn't work, connect phone to pc and start to power on. Does windows play sound of usb device connected? Look under device manager in windows is there any unknown item listed.
Click to expand...
Click to collapse
HMM excuse me . i try as you said . that fastboot mode by pressing the search key . and it work .[i having same problem]
here the story of my problem : http://forum.xda-developers.com/xperia-play/help/how-to-recover-xperia-play-fail-custom-t2814347
hmm ... then what i must do to make it live back .. T.T

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

[Q]E988 bricked

I have bricked lg e988 indonesia firmware rooted,updated to kitkat 4.4.2,cwm 6.4.0.4
Due to some issue I factory reset from settg menu and the phone rebooted to cwm recvry mode
I tried to rebootd to system but fail
I tried to flash stock rom via adb sideload but fail too so does with lg flash tool
So I thght smtg wth cwm then I tried to flash twrp loki 2.6 and then stuck to lg logo only until now
Pls help

You're still soft bricked, just force your device into download mode and use LG Flash Tool to return back to stock and start again.

ShadySquirrel said:
You're still soft bricked, just force your device into download mode and use LG Flash Tool to return back to stock and start again.
Click to expand...
Click to collapse
Thank you for the respond. Mind if you share me on how to force my device into download mode?
I have tried the power + volume keys combination but nothing happened, back and stop at lg logo
Before i flash the twrp, i tried the LG Flash Tool, but i wont recognize the phone, something like usb connection issue

hotmatua.parulian said:
Thank you for the respond. Mind if you share me on how to force my device into download mode?
I have tried the power + volume keys combination but nothing happened, back and stop at lg logo
Before i flash the twrp, i tried the LG Flash Tool, but i wont recognize the phone, something like usb connection issue
Click to expand...
Click to collapse
If I remember correctly (please check threads here, it's been a long time since I've used this device, so memories are fading), download mode is activated when you press Volume Up (or both of volume buttons) and insert USB cable. I know that E98x has some strange button sequences, like rebooting to recovery is a two step operation (Volume Up + Power until navbar blinks, then power button twice, that's the only way mine wanted to boot into recovery), so please check around.
As far as USB connection issues, don't use USB3+ ports and if you're on Windows 8.1+ and later, run with Administrator privileges. I never experienced that one (used LGFlashTools from inside VirtualBox running Win XP for all my needs, I'm not a Windows user), so can't really help much but forums are full with explanations how.

ShadySquirrel said:
If I remember correctly (please check threads here, it's been a long time since I've used this device, so memories are fading), download mode is activated when you press Volume Up (or both of volume buttons) and insert USB cable. I know that E98x has some strange button sequences, like rebooting to recovery is a two step operation (Volume Up + Power until navbar blinks, then power button twice, that's the only way mine wanted to boot into recovery), so please check around.
As far as USB connection issues, don't use USB3+ ports and if you're on Windows 8.1+ and later, run with Administrator privileges. I never experienced that one (used LGFlashTools from inside VirtualBox running Win XP for all my needs, I'm not a Windows user), so can't really help much but forums are full with explanations how.
Click to expand...
Click to collapse
Thank you very much...now the phone is back to initial state. This what i've done:
1. Download LG Flash tool from http://lgflashtool.com/
2. Download LG USB Drivers from http://lgflashtool.com/
3. Install LG flash tool and LG USB Drivers
4. Plug usb cable to phone
5. Hold volume buttons and then plug the usb cable to PC (i use win 10)
6. Voila, the Download Mode icon is showed up
7. Run LG Flash Tool (Administrator privilege) & follow the instruction (i use e988 v20c stock firmware)
8. Phone back to normal (only if you use the correct stock firmware)
A very big thanks to ShadySquirrel
Hopefully this thread can also be used as reference for anyone who has the same issue as i had