LGP920 Hardware or software problem? - LG Optimus 3D

Good evening everyone, and excuse my english
First of all. I read all these topics:
http://forum.xda-developers.com/showthread.php?t=2337545
http://forum.xda-developers.com/showthread.php?t=1942836
http://forum.xda-developers.com/showthread.php?t=2246001
http://forum.xda-developers.com/showthread.php?t=2104955
My LGO3D is not bricked, the problem is strange.
I bought this phone from a guy with a cheap price. Cause the phone was boot looping and the guy don't know how to flash smartphones. So I thought I was able to restore it and take it for my daily use. That was a good deal.
That's what I did from the topics listed on top:
Installing GB (V20E / V21E)
- The phone boot loop.
Installing ICS (V30A / V30B)
-The phone booted normally but:
1 - When I enter the camera, it exists itself without any error message.
2 - When I enter the music player it exists itself sometimes.
3 - rarely, after flashing the phone many times, the camera works but when I push the button (icon) to activate the frontal camera, it don't work, I see juste the rear camera working and the image is devided in two pictures side by side.
4 - When the phone enter in standby mod after inactivity or after I push the on/off button, the phone will be blocked in standby mod. The button on/off don't turns the screen on. The only way is to remove the battery and insert it.
5 - The phone don't read the SIM card.
6 - When trying to open the "camera 3D" app, a message appears (traduced from french) "unable to establish connection with the camera"
So, the phone is not bricked cause it boots on ICS, but it don't works correctly. Do you think the problem is from the hardware? Maybe the camera is faulty. Or all the phone is faulty.
Have you some ideas
- Phone: LG P920
- No history of the phone
- I used all the files/softwares of the tutorials (except lg flash tool, the links are dead)

Check this out also bro:
http://nileshgr.com/2012/11/07/fixing-the-cwm-assert-error
Hiya kho!

Related

HELP: Touchpad/screen doesn't respond, can't enter bootmode/security code or PIN code

First of, I have a problem getting into the bootloader as I've said in my post: forum . xda-developers . com / showthread.php?t=759279
I've been using Kostas244's ROM -> www . forum . xda-developers . com / showthread.php?t=554071 for a few months now, no problems until now.
What happened: The touchscreen began to not respond to my input, slowly and gradually for a few days. I clicked on a few things, something else was triggered. So I figured I only had to reboot the phone. Now I can't get even use my phone.
My phone activies: Calls, SMS, Alarm, Play Solitaire, Taking Photos. That's about it. Nothing else.
Now I can't seem to enter the bootloader (Camera Hold + Power) during startup, can't get into the system cause the slider reacts just once and then it hungs up. Freezes for a while, then after I shut down the screen and turn it on again it simply does not respond at all.
First time I could enter my security code, but then I couldn't enter my PIN code so I took out my SIM CARD - then I couldn't enter my security code and nothing seems to be working.
Right now my phone ask me to enter a code due to "several bad atempts to get into the phone" and I could only press q (whatever I would input, it simply gave me a q and then nothing) and that doesn't do me any good.
Just a few minutes ago I tried forum . xda-developers . com / showthread.php?t=636170&highlight=bricked+my+cruise&page=2 on the thread ( forum xda-developers com / showthread.php?t=636170&highlight=bricked+my+cruise&page=2 ) who seemed to have a similiar problem as mine - the touchscreen isn't working.
But I don't have Windows XP (if that's the case it's not working) and the guides seems to point that it has to be in RGB mode (bootloader) and that is not working either.
Does anyone have any ideas or solutions I could try? This just happened out of the blue, I hadn't done anything with the phone for a whole day and it just began acting like this. No damage to the phone has been made or anything out of the ordinary. So it sounds like a software problem, but I can't seem to get past it.
I use Linux 64 and Windows 7 64 if there's solution to connect to the device on either Operating Systems.
Thanks anyway.
To enter the bootloader screen press the camera button an the reset button at the bottom of your phone 'the little hole next to the usb'.
You could try hard reset press and hold both bottom buttons and reset 'you will lose your contacts sms ect' so back up using pimbackup.
If your digitizer is not working 'doesn't respond to touch' try sync your phone and install mymobiler/,then you can browse you phone and backup to sd card before hard reset.
Already tried that, as I included in my previous post about getting access to the bootloader. I can't get into the bootloader with Camera Hold + Reset. Nothing happens, it's as if the buttons don't respond correctly.
Hold down both "bottom buttons"? You mean GPS and IE buttons? Tried that too. Tried a few others. And I'm certain this worked before. Like I said in my post, nothing has happened to the phone recently - it just started acting this way. So I'm guessing it's more a software problem than a hardware problem. Since I have HARD SPL and a homecooked OS the chances of it being that is a probability.
I have nothing that needs to be backed up, so I don't need to do anything about that.
Hi
I have same problem. Screen doesn't react (only if press hard), and i can't enter bootloader and make HR.
Also, I had same problem 2 month ago. But I managed to revive it - made a lot of try of HR and one of them was successful. but now it is dead again and I don't know what to do...

[Q] Can't access download mode and no backlight

One of my friend tried to root his phone using odin and a firmware for version 9023 while he has a Nexus S GT-i9020t. I've been looking for some hours, and I couldn't find any solution for that problems.
This post has similar symptoms, but still no answer: http://forum.xda-developers.com/showthread.php?t=1436199
Symptoms
- No backlight at all (seems to be a problem version amoled vs slcd, as I could read)
- Screen is upside down (but buttons, keyboard, etc still react correctly, only the screen display is upside down, so you get to have two phones next to each other to press the right buttons...)
- Can't get into download mode to flash using Odin and the correct firmware. When you hold both volume buttons and plug the USB cable, you get the first attached image. Green lines, nothing else.
What it can do
- Phone can get into the bootloader, but screen is very dim, as you can see in the second screenshot
- Phone can boot normally, you may take screenshots, place phone calls (while guessing numbers), receive phone calls, but the screen backlight stays off, so it's pretty hard to read anything. Tried to get to the display settings to play with the luminosity, without success.
- No problems using adb to send commands to the phone, or using fastboot to flash the device.
What i've tried
1. Downloaded original firmware image from Google, and tried flashing the device using fastboot. Tried 2.3.6 and 4.0.4 for Nexus S worldwide (i9020t) - over here: https://developers.google.com/android/nexus/images . Still no backlight.
2. Tried the One-Click Unbrick for Samsung devices. Installed drivers and everything, the tool return the result Success, but still can't access download mode, or fix the problem.
It looks like the graphic part of the phone is messed up, and i've got no idea on how this could be possibly fixed.
Any help would be greatly appreciated !
I think your AMOLED Screen just died or is going to die. If it is still under warranty, get it replaced. If not, look on ebay and buy a replacement screen. Its a do it yourself procedure. Or take it to a phone repair shop and they'll do it for you.
It's not under warranty anymore, it's 1 year and 2 months old.
I doubt the screen died, since problems started when he installed the wrong firmware. Can a bad firmware cause physical damage to the screen ?

[Q] Faea F1. Touchscreen only responsive on startup, fails after lock

Hi all,
Some months ago my screen cracked and last week I finally received a replacement screen which I was able to install.
I have been looking for many hours to find a similar case but could only find cases where the touchscreen didn't work at all or intermittently stopped working.
The problem:
I can start my phone, the touchscreen works perfectly.
When I lock the phone and seconds / minutes / hours after I wake it again, the touchscreen stopped working (the power button and volume button still work)
Repro:
1. I replaced the screen.
2. started the phone -> touchscreen is working 100% (i can do everything)
3. I lock/sleep the phone (power button)
4. I unlock/wake the phone (power button) -> touchscreen is not working anymore
5. I restart the phone by taking out the battery and we are back to step 2, it works but stops as soon as I lock it again
What I've tried:
- multiple different roms, all resulting in the same problem
- hard resets / factory resets/ cache resets / dalvik resets
- removing the slide lock
Is there anything I can still try?
Isn't it strange that the touchscreen does work after booting, but the moment it sleeps/locks it stops working
The only way it works is by never putting my phone to sleep, which is not the best solution, right!?
Unfortunately at the support center of the manufacturer they don't know the answer either:
==
Hi,would you please take it to your local repair store?
Please give me feedback from them.
FaeaMobile Support
==
I tried adding a link to a youtube video I made, but I'm unable to add it because of the no. of posts i have.
Does this video help explain the issue, and does anyone have any idea how I can fix this?
youtu.be/5L6CHNrIp8M

S7 reboots when opening the camera (foreground and background)

Hello everyone,
I have a Galaxy S7 G930U and it was out of warranty.
I searched the internet and I could see that so many people have had the same issue, not only the S7 but also other galaxy phones. I tried all the solutions available on the internet but still couldn't solve the problem
I was exposed to a light rain (I didn't have to use an umbrella) while it was in my pocket
1/ Opening the camera app, the phone, the camera app fails -> the phone freezes and reboots immediately -> after the reboot, the OS loads the camera in the background (I don't touch anything and let it boot up normally itself) -> the phone freezes again and reboot -> it booploops for several times until it's usable again
2/ what I have tried:
- Clearing the caches of gallery, camera app, clearing the Cache partition and factory reset in recovery mode, forced reboot by Vol -down + Power, booting in safe mode -> all of them couldn't fix the problem or just the phone was partially usable for a while until it happened again
- Navigated to Developer options -> Inactive apps -> inactivate the camera -> sometimes it worked but sometimes it didn't. I mean it prevented the bootloop unless I opened the camera again
- factory reset in recovery mode: it even bootlooped during the initial setup wizard -> it took me 6-7 times to finish the wizard due to the reboot during selecting the options
- Hard reboot by Vol-down + power -> sometimes, it was fixed but now this doesn't work anymore
- I took out the sim and SDcard tray and left it open for exactly 2 days. No improvement
- I tried to use my phone without the SDcard, nothing changed
- I left the default mode of the camera app in the rear camera and sometimes the camera worked. As soon as I switched to the front camera, it failed
- I tried to press the areas around the camera, tap continuously, shake the phone. Nothing happened
- checked for updates but no update was available
- I also noticed while I was entering the recovery mode, it said: "No command" (never happened before). It let it run for 30 seconds without touching, it successfully booted up to the recovery. This has happened all the time since then
bootloops
My current workaround to stop the bootloop is to clear the camera app data and never turn it on + inactivate the camera in developer options
Please help!!! This issue is very severe and makes me angry. I wonder why I bought this phone in the first place with this kind of issue. It's no longer a normal phone anymore
Thank you
If the rain caused the problem you could try using Isopropyl alcohol to clean the water residue off the board which could be causing the problem
deleted
hello, thank you for your answer, unfortunately, I'm not able to open up the phone myself, none of my friends can also do that. when I bring it to a phone repair shop or samsung, they may refuse to do what you suggest and recommend a full mainboard replacement. This may cost more than the phone itself. I'm don't really know what to do now

I will try to answer all the problems of XZ2 :)

Hi , i have working with more than 100 xz2 phones , i got many problems and fix it (google and xda) , so I think I can help you to fix your problem with xz2 asap if u ask me in this post
My exp :
Flash
Unlock
Root
and some small problems...
[deleted]
sinommo said:
Hi , i have working with more than 100 xz2 phones , i got many problems and fix it (google and xda) , so I think I can help you to fix your problem with xz2 asap if u ask me in this post
My exp :
Flash
Unlock
Root
and some small problems...
Click to expand...
Click to collapse
Hello,
My wife's Sony Xperia XZ2 Compact with model number H8324 has an issue with booting or maybe the launcher getting stuck in a loop after getting to the lock screen for a split second.
The phone seems to boot like normal and gets to the lock screen, we are even able to punch in one or two digits of the 4 digit pass code. Then it goes into a loop of the notification bar and back button flickering. From then on the phone is not responding except for the power button which brings up the normal "Turn off, Reboot, and Lockdown" menu. The issue just started out of nowhere yesterday morning and we haven't been able to fix it yet. We haven't done any rooting or custom rom flashing, it's running the official Sony software but it's out of warranty.
Here's a video showing the issue. The video shows the whole boot process but the link takes you to the last part after the logos.
We would love to get some files off it so if there is a way anyone can help us with that we'd prefer it over a hard reset.
Things we've already tried
Turning the phone off and on again
Unlocking the phone in the split second the lock screen works, this is just too short to swipe up and then put in four digits.
Rebooting the phone
Booting while charging
Booting into safe mode (this has the same issue)
Connecting the phone with USB to a pc, the phone is recognized by Windows, but it doesn't share it's filesystem with Windows.
Connecting the ADB to it, alas usb debugging is not yet enabled on the phone
Trying to get into recovery mode, we haven't been able to get into the recovery menu. Googling seems to indicate it might be holding volume up + power button when the phone is off but then it doesn't seem to do anything at all.
We're currently trying to run out the battery of the phone to see if that will resolve the issue on it's own.
If anyone has any idea, we would love to hear it.
mohhom said:
Hello,
My wife's Sony Xperia XZ2 Compact with model number H8324 has an issue with booting or maybe the launcher getting stuck in a loop after getting to the lock screen for a split second.
The phone seems to boot like normal and gets to the lock screen, we are even able to punch in one or two digits of the 4 digit pass code. Then it goes into a loop of the notification bar and back button flickering. From then on the phone is not responding except for the power button which brings up the normal "Turn off, Reboot, and Lockdown" menu. The issue just started out of nowhere yesterday morning and we haven't been able to fix it yet. We haven't done any rooting or custom rom flashing, it's running the official Sony software but it's out of warranty.
Here's a video showing the issue. The video shows the whole boot process but the link takes you to the last part after the logos.
We would love to get some files off it so if there is a way anyone can help us with that we'd prefer it over a hard reset.
Things we've already tried
Turning the phone off and on again
Unlocking the phone in the split second the lock screen works, this is just too short to swipe up and then put in four digits.
Rebooting the phone
Booting while charging
Booting into safe mode (this has the same issue)
Connecting the phone with USB to a pc, the phone is recognized by Windows, but it doesn't share it's filesystem with Windows.
Connecting the ADB to it, alas usb debugging is not yet enabled on the phone
Trying to get into recovery mode, we haven't been able to get into the recovery menu. Googling seems to indicate it might be holding volume up + power button when the phone is off but then it doesn't seem to do anything at all.
We're currently trying to run out the battery of the phone to see if that will resolve the issue on it's own.
If anyone has any idea, we would love to hear it.
Click to expand...
Click to collapse
I think u just need to reinstall rom file with newflasher and stock rom , did u tried it ? with newflasher newest version , u still can keep the personal files and flash stock rom for the phone , then i think this phone will run normal again
If u dont know how to do that , reply comment here , but u should turn off the phone to keep battery well , if u can't turn off the phone , try to press and hold volume up button + power button within 5 sec , phone will vibrate 3 times and totally off
Is there a way to get a stock recovery if somehow the recovery has been deleted?

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