[Q] reset motherboard on lg optimus black - LG Optimus Black

Hy... I tried to do an upgrade to my optimus black from 2.3.4 to ICS and after the phone virtually died and everything I do no longer starts. Can someone help me before I go with him to repair? I think the problem would be the motherboard, so if someone who might know a solution, please help me. Thanks in advance!

does it enter software/upgrade mode?
pressing and holding volume up while connecting to a pc while phone is off

does it enter software/upgrade mode?
Unfortunately does not start in any way. I've tried all the ways found on the internet and nothing.

Welcome to the forum. Thread moved as questions belong here in Q&A so please post in the correct forum going forward.
Thanks
AvRS

Simple test: Phone should be off, take akku out, hold vol+ button while you connect via USB to PC. If it shows something like SW upgrade with a yellow background on the screen good, if screen stays still off it's a hard brick - i.e. you probably can't do anything.
Sent from my LG-P970 using xda app-developers app

SaschaKH said:
Simple test: Phone should be off, take akku out, hold vol+ button while you connect via USB to PC. If it shows something like SW upgrade with a yellow background on the screen good, if screen stays still off it's a hard brick - i.e. you probably can't do anything.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
Unfortunately does not work any combination of keys. I think the last option is the correct and I do not have what to do than to send to repair. Thanks anyway

Related

[Q]Help with brick

hi i have been very stupid and installed a optimus 2x rom on my LG Thrill 4G, i have tried putting it in download mode and all kinds of thing and the hole phone will not turn on. Is there another way to put a new rom on of fix it before i send it in? P.S. when i try to put it in download mode or what ever all it does is connect and disconnect, connect then disconnect and never ends. I also tried all other combos of buttons and nothin. The screen will also not come on for crap. I did get it taken to AT&T store and the put in a new battery and new charger to try but nothing responds no screen no nothing. I don't even no if the battery is charging. Any help will be appreciated.
When your in download mode and it turns off and on... You have to hold volume up and power to enable download mode. takes 2 to 3 seconds and usually vibrates
Sent from my SAMSUNG-SGH-I777 using xda premium
rdannar said:
When your in download mode and it turns off and on... You have to hold volume up and power to enable download mode. takes 2 to 3 seconds and usually vibrates
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
ok so i hold the volume up only at first then when it does the on off thing is when i start to hold power?
rdannar said:
When your in download mode and it turns off and on... You have to hold volume up and power to enable download mode. takes 2 to 3 seconds and usually vibrates
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
also im using lg flash tool. not sure if im supposed to use that or not but ya i get what you are saying now, but didn't work.
I am in the same boat, but I cant even get it to be recognized on the computer or anything. It does not respond. Wont power on it does not respond to any button configuration. Is there any way to get it to cut back on.
Please search before posting and use clear subject. As a large forum we don't need unnecessary clutter, and you will enjoy much more your device finding the answer by yourself.
Please post only once.
1. Search before posting.
Use one of our search functions before posting, whether you have a question or something new to share, it's very likely someone already asked that question or shared that news.
3. Post only using a clear subject and message.
You're most likely to receive a helpful answer to your question if you use a short subject title that describes your problem and a message that explains in detail what your problem is and what you've tried to solve it.
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Click to collapse

[Q] [Q - Urgent Help!] (Root + Locked Bootloader) Xperia Z can't start!

Hey Everyone,
I am stuck right now and I am not sure where to go from here. I am not going to go into the story on why it happened, I'll just tell you guys what happened to makes things easy.
I rooted my phone without unlocking the bootloader using this method:
[ROOT] Xperia Z for LOCKED, UNLOCKED bootloaders! [Exploit by: goroh_kun & huhka_com]
forum.xda-developers.com/showthread.php?t=2186368
Using ROM Toolbox Pro I attempted to change the background colour of the status bar.
Phone was restarted by the app.
Problem begins:
Phone won't start.
It will boot with the Sony logo, followed by the XPERIA logo... followed by it shutting down.. and it will keep repeating this until I force shutdown the phone (Power + Volume Up).
I can connect it to the computer via Fastboot Toolbox using the Fastboot tool. I have no idea where to go from here. I tried to reflash a generic .ftf rom, but I am just stuck at the part where it's telling me to unplug USB and reconnect it while holding back button (Volume Up for Xperia Z?), but it does not register it.
Any advice or solution would be a great help as I've tried searching around and could not find anything for hours now..
Thank you everyone in advance and I really appreciate it.
Mode: C6603
Version: 10.1.A.1.350
Country: SG
Unbranded
Download update service from sony website to repair the phone.
Sent from my C6602 using xda premium
gm007 said:
Download update service from sony website to repair the phone.
Sent from my C6602 using xda premium
Click to expand...
Click to collapse
Thank you very much for the prompt response. Good to hear from someone after being in the dark for hours searching.
That was the first thing I've tried doing, but the update service requires the phone to be in an on state to begin with. Will revisit that option again in case I missed on something,
dxreaper said:
Thank you very much for the prompt response. Good to hear from someone after being in the dark for hours searching.
That was the first thing I've tried doing, but the update service requires the phone to be in an on state to begin with. Will revisit that option again in case I missed on something,
Click to expand...
Click to collapse
I am not talking about pc companion,you have to turn off the phone first to use update service.
http://www.sonymobile.com/us/tools/update-service/
Sent from my C6602 using xda premium
to phone off, hold down power button + volume up after a few seconds it will vibrate once , keep holding down the button combo until it vibrates 3 times, now release , the phone will now be off, use Sony Update Service as gm007 suggested
gm007 said:
Download update service from sony website to repair the phone.
Sent from my C6602 using xda premium
Click to expand...
Click to collapse
Yeah.. I see that it's different..
I'm now stuck at the "Connecting your phone" holding the volume down key bit, it'll detect a device, installs the drivers for the first time (SEMC Flash Device), but nothing happens. This is what happens.
*Holds Volume Down* & Plug in USB
SEMC Flash Device can be seen connected under Device Manager>USB controllers
*silence*
SEMC Flash Device disconnects and phone reboots into the previous state (Sony + XPERIA logo, restart)
ali3nfr3ak said:
to phone off, hold down power button + volume up after a few seconds it will vibrate once , keep holding down the button combo until it vibrates 3 times, now release , the phone will now be off, use Sony Update Service as gm007 suggested
Click to expand...
Click to collapse
All I did was switch off your phone, Keep hold of volume down and plug your usb into the phone. Your phone LED will briefly flash Red then Green
shadowboy23 said:
All I did was switch off your phone, Keep hold of volume down and plug your usb into the phone. Your phone LED will briefly flash Red then Green
Click to expand...
Click to collapse
Mine is not flashing any colour. I will hear the USB connect tone, and that's it. Nothing happens. No LED flashing, no moving of the update software. This will then be followed by a USB disconnect tone after a while and back to the loop again, Red LED>Sony Logo>Red LED off>XPERIA logo>phone switched off for a brief moment only to loop.
Maybe restart the pc and change the usb port that you are using.
Sent from my C6602 using xda premium
that sounds like you have the phone plugged into USB ? you are supposed to start Sony update without phone plugged in...and only plug it into usb when the sony update prgram tells you to, then you are only to plug just the USB cable into computer, make sure phone is completely off , wait 30 secs , hold down the volume key then plug USB cable into phone,
gm007 said:
Maybe restart the pc and change the usb port that you are using.
Sent from my C6602 using xda premium
Click to expand...
Click to collapse
ali3nfr3ak said:
that sounds like you have the phone plugged into USB ? you are supposed to start Sony update without phone plugged in...and only plug it into usb when the sony update prgram tells you to, then you are only to plug just the USB cable in, make sure phone is completely off , wait 30 secs , hold down the volume key then plug USB cable into phone,
Click to expand...
Click to collapse
Looks like it's my desktop thing. Restarted the thing 3-4 times and swapped to almost every USB port at the back.
It's being detected by my laptop. Will update everyone on the progress. Looking good so far. Thanks for the support so far, really appreciate it.
Edit: Download complete. Installing software in the phone. Looks like it might be going well. Stupid desktop, I thought it was an issue with the phone all along. >.<
Edit 2: Running fine now. I see the colourful smoke animation. Cheers. Now if only I can buy the three of you coffee. Cheers

[Q] HTC One X acting wierdly, possibly bricked? Please help.

Hi everyone
I hope you can assist.
I have a stock HTC One X that I have been thinking of installing a custom ROM on but never got around to it.
Two days ago, after I had it plugged into a car charger, it started to act strangely. It would take really long to wake from hibernate. Then after a while the screen would go blank, though the LED on top would still blink. After leaving it charging overnight, it then stopped restarting all together. Now it won't restart even after a hard reset.
When I plug it in via USB, it is detected and I can view the contents of my phone via my computer.
It still will not restart. When I hold down the power key, the three buttons at the bottom flash, the phone vibrates but does not restart.
I can't seem to get into the boot loader either. The screen does not come on, holding down the power and the volume down key does not give me the bootloader menu.
At the moment, my thoughts are:
1. It is possible a hardware problem and the screen is faulty?
2. It is a software problem and re-installing either stock or a custom ROM will fix it.
Please let me know what you think and how best to resolve this.
If I send this to my carrier, I have to wait 4-6 weeks for resolution.
Thanks
Phil
Is the motherboard fried ? Something along the lines.
Sent from my HTC One using xda premium
expertzero1 said:
Is the motherboard fried ? Something along the lines.
Sent from my HTC One using xda premium
Click to expand...
Click to collapse
I am not sure. Is there any way to check this?
At the moment, the phone is plugged in, LED is green (I think indicating it is fully charged), bottom 3 buttons are lit.
Other than that, when I hold down the power key, the bottom three lights blink, but no other response.
When I installed ADB and checked using ADB devices, it reported seeing a device.
Right now, when I press the power button, the bottom three lights switch on and off, almost like its waking up. Seems like this could be a screen issue. But I am not sure.
Ur screens dead bro. If the lights on the bottom are on then the phone is awake but since u for no display then either ur LCD died or the connector loosend. Btw ur in the wrong forum this is the HTC ONE u got the ONE X
Sent from my EVO using xda premium
luigi311 said:
Ur screens dead bro. If the lights on the bottom are on then the phone is awake but since u for no display then either ur LCD died or the connector loosend. Btw ur in the wrong forum this is the HTC ONE u got the ONE X
Sent from my EVO using xda premium
Click to expand...
Click to collapse
Thanks Luigi.
lol - Looks like did plonk this in the wrong place!
Apologies.

[Q] HTC One won't turn on

I have HTC One I bought it from ebay, the problem is not turning on and not charging either, it did try to turn on once when it was plugged in to my PC but screen showed up for brief moment and vibrated but disappeared after that.
When I plug the phone to PC it is trying to load the driver and also show up as Android 1.0 in device manager (see attached), and also PC making noise same as when we plug some thing in USB.
I tried to hold volume + power and PC making noise like something detecting but nothing showing up in my computer.
I really appreciate if someone can help me to narrow down the problem.
Thanks
nomi640 said:
I have HTC One I bought it from ebay, the problem is not turning on and not charging either, it did try to turn on once when it was plugged in to my PC but screen showed up for brief moment and vibrated but disappeared after that.
When I plug the phone to PC it is trying to load the driver and also show up as Android 1.0 in device manager (see attached), and also PC making noise same as when we plug some thing in USB.
I tried to hold volume + power and PC making noise like something detecting but nothing showing up in my computer.
I really appreciate if someone can help me to narrow down the problem.
Thanks
Click to expand...
Click to collapse
When you hold power button for more than 8-10 secs, is the notification light(it will be in the upper speaker) turning on atleast?
anyway, it sounds like a manufacture defect, i would recommend you to return it in HTC service center ASAP and get a replacement to avoid any future issues.
nomi640 said:
I have HTC One I bought it from ebay, the problem is not turning on and not charging either, it did try to turn on once when it was plugged in to my PC but screen showed up for brief moment and vibrated but disappeared after that.
When I plug the phone to PC it is trying to load the driver and also show up as Android 1.0 in device manager (see attached), and also PC making noise same as when we plug some thing in USB.
I tried to hold volume + power and PC making noise like something detecting but nothing showing up in my computer.
I really appreciate if someone can help me to narrow down the problem.
Thanks
Click to expand...
Click to collapse
Have you tried this: http://forum.xda-developers.com/showthread.php?t=2481211
Prash8429 said:
When you hold power button for more than 8-10 secs, is the notification light(it will be in the upper speaker) turning on atleast?
anyway, it sounds like a manufacture defect, i would recommend you to return it in HTC service center ASAP and get a replacement to avoid any future issues.
Click to expand...
Click to collapse
No notification light come on but sometimes if I keep pressing volume up+volume down + power for longer than 2 min screen come on briefly and phone vibrates but than nothing
I cannot send as a warranty replacement since I don`t know the history of the phone.
What you guys think its worth while to give to repair shop and what you think its going to cost me.
Correct me if I m wrong, if there 8s any problem in mobo it woun't show up on PC as an android device. So I think its software messed up.
There is any way to do diagnostic on the phone?
Sent from my SGH-I337M using xda app-developers app
nomi640 said:
No notification light come on but sometimes if I keep pressing volume up+volume down + power for longer than 2 min screen come on briefly and phone vibrates but than nothing
I cannot send as a warranty replacement since I don`t know the history of the phone.
What you guys think its worth while to give to repair shop and what you think its going to cost me.
Correct me if I m wrong, if there 8s any problem in mobo it woun't show up on PC as an android device. So I think its software messed up.
There is any way to do diagnostic on the phone?
Sent from my SGH-I337M using xda app-developers app
Click to expand...
Click to collapse
What country are you in? I'd try running an RUU, see if it picks the phone up, even if its the wrong RUU it wont run but it will tell you which RUU you need instead.
I am in canada, I just downloaded the RUU and I am running it, it is on verifying information for more than 5 min how long should it take to verify information?
Sent from my SGH-I337M using xda app-developers app
After trying to run RUU it got stuck on verifying stage but red led start flashing and pc making noise like pluging and unplugging the usb
Sent from my SGH-I337M using xda app-developers app
nomi640 said:
No notification light come on but sometimes if I keep pressing volume up+volume down + power for longer than 2 min screen come on briefly and phone vibrates but than nothing
I cannot send as a warranty replacement since I don`t know the history of the phone.
What you guys think its worth while to give to repair shop and what you think its going to cost me.
Correct me if I m wrong, if there 8s any problem in mobo it woun't show up on PC as an android device. So I think its software messed up.
There is any way to do diagnostic on the phone?
Sent from my SGH-I337M using xda app-developers app
Click to expand...
Click to collapse
return for replacement. Thats the best thing to do IMHO
Prash I cant send it HTC for replacement since I bought it online
Sent from my SGH-I337M using xda app-developers app
nomi640 said:
Prash I cant send it HTC for replacement since I bought it online
Sent from my SGH-I337M using xda app-developers app
Click to expand...
Click to collapse
didn't give you bill? receipt ?
No I don't have any paperwork
Sent from my SGH-I337M using xda app-developers app
Red LED flashing and now does not show up on pc as android device but just usb input device & hmi device but loook like losing connectivity from pc regularly and trying to connect again
PC making noises like pulg unplug
Sent from my SGH-I337M using xda app-developers app
could you go into recovery?
No can't do anything
Sent from my SGH-I337M using xda app-developers app
nomi640 said:
No can't do anything
Sent from my SGH-I337M using xda app-developers app
Click to expand...
Click to collapse
sorry to say, but i think you have received defected device. raise an ebay complaint, you will get money back
Will JTAG solve the problem?
Sent from my SGH-I337M using xda app-developers app
nomi640 said:
Will JTAG solve the problem?
Sent from my SGH-I337M using xda app-developers app
Click to expand...
Click to collapse
I dont know about that buddy. Sorry
Have you tried a different USB Cable? Different USB port?
Install HTC Sync, then uninstall it, but keep the drivers when it asks.
Hold Power and Volume Up at the same time, can take anywhere up to 1 min.
Post back if you get anything.
Yesterday I booted into recovery mode two times
1st time I tried factory reset nothing happened
2nd time I tried ruu, and it get to point where ruu tried to reboot and after that nothing
And I was not able to boot it again.
They way it got into recovery I hold it volume down + power
But after two bootup red light started flashing agin as before.
Any gelp will be appreciated.
Thanks
Sent from my SGH-I337M using xda app-developers app
Jackering said:
Have you tried a different USB Cable? Different USB port?
Install HTC Sync, then uninstall it, but keep the drivers when it asks.
Hold Power and Volume Up at the same time, can take anywhere up to 1 min.
Post back if you get anything.
Click to expand...
Click to collapse
Any suggestions?
Sent from my SGH-I337M using xda app-developers app

Emergency Mode

Hello!
What I must to do if I want turn on emergency mode (with yellow background) on this phone? Thanks for help!
I havn't seen any modes with the yellow background on my phone when I had the stock firmware, the only ones I've seen are the ones dexter found
http://forum.xda-developers.com/showthread.php?t=1741892
I believe the lg pc suite can help restore the phone or was it lg mobile support tool, but it will probably download the firmware from lg and I don't know if you'll be able to root or bootloader unlock this phone with a newer firmware than v20a
you can also restore the firmware if you have the KDZ file using this tutorial
http://forum.xda-developers.com/showthread.php?t=2069723
I hope that helps
Problem is very big. Phone can't rurn on, screen is black, buttons under screen aren not working, hard reset not wotking, PC can't find device...
Poland_Developers said:
Problem is very big. Phone can't rurn on, screen is black, buttons under screen aren not working, hard reset not wotking, PC can't find device...
Click to expand...
Click to collapse
Could you tell us what caused the problem? That might help to pin it down.
In the mean time see if you can enter S/W Upgrade mode. Hold the volume down button and plug in a USB cable.
Sent from my LG-P880 using XDA Free mobile app
Every button not working, screen is black...
Help people to help you
Poland_Developers said:
Every button not working, screen is black...
Click to expand...
Click to collapse
Excuse me for pointing it out, but you are being too concise in your descriptions.
Is the phone even working?
Since you have no buttons, no screen, no PC connection, in lack of more details I tend to believe that it could be turned off and unable to be switched on.
Have you ever had problems with power button?
Have you checked your battery?
It could have been fully discharged, have you tried recharging it for some time?
Does the phone reacts when plugged to a recharger?
See? in a single post I put mor questions than all your statements you put in three of your posts.
You are not helping people to help you.

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