Hello
E recently bought an LG Optimus Black (P970). It had stock rom 4.0.4 and the guy told me that it has CWM recovery on it, but i never tried.
It was working well, but one day it started to freeze quite often. One day i inserted another sim card than the one i was using before and it freezed. Restarted the phone but it froze again. The third time it didn't even boot, but instead the green android appeared with his belly open and the exclamation mark hanging out of it.
I tried a factory reset, but the process lasted more than 15 minutes so i turned off the phone.
Since then, when the phone starts the following happens: LG logo appears, Android guy appears with the loading sign in his belly and after 3 seconds the lg logo again.
I was able to access the SWUpdate menu and to flash a stock ROM with LG MobileSupportTool. When the update process ended with success, the phone should have restarted itself but it didn't. Instead the lg logo appeared again.
Trough the SWUpdate menu i managed to flash other stock ROMs on it with the SmartFlashTool but the same thing happened as before. (Successful flash, but the phone didn't restart. I even managed to flash a ROM on the device which had CWM recovery patched to it.
After this i created myself a 3in1 service cable with 56kohm,130kohm,910kohm resistors. I managed to access the SWUpdate menu with it, so i knew the cable was good. But i couldn't read from the device with CDMA tool. CDMA made the connection, but couldn't read.
I took the phone to the service, but they told me that the phone didn't respond to the JTAG either. They assumed that the motherboard is broken.
I didn't make peace with the idea that the motherboard is broken. I need help. Currently my only option is the take the phone to another service and hope that they are more capable than the previous ones.
Thank you in advance.
Related
My Optimus One has a black screen after a failed flash. I bought the phone in Hong Kong and cannot return it because I am back in the U.S. I will be returning to Hong Kong in a few months, so if anyone knows Broadway's (the electronics shop) warranty I would be grateful.
This is what happened leading up to the brick:
- Tried flashing Prime v2.
- After flash, didn't like the ROM, wanted to go back to AmberHome.
- I didn't have AmberHome on the SD card.
- I had made a backup of all my data when I was in AmberHome before I flashed Prime.
- I restored.
- Stuck on Android logo.
- Wiped all data, restored again.
- Stuck on LG logo.
- KDZ updater, phone in emergency mode, flash TYPE on EMERGENCY, flashed V10a (phone came with V10a)
- Mid flash, there was interruption.
- Tried flashing again, KDZ in CSEMERGENCY (phone still in EMERGENCY mode)
- Failed, repeated flash about 6 times.
- Kept failing.
- Tried turning off phone, then booting back up in Emergency mode again, hoping it would fix something.
- Phone won't turn on.
Isn't KDZ file corrupted?
I don't know. It just won't turn on. Any ideas?
Hi I have the same problem with my Optimus One.
After trying to back up original rom I can not get past the initial black screen.
Any help would be greatly appreciated.
What I don't get is why the phone stayed on in Emergency Mode and then didn't turn back on after trying to reboot back into Emergency Mode.
So, anyone got any answers, anything new?
Progress
I have made some progress.
After hours of research I am trying to fix through kdz updater.
My main problem is that only my Ubuntu box can connect to the net.
I have been trying to do it through virtual box but I just cannot get the software to see the phone.
Now I have copied the files to my old xp laptop. Surprisingly it still cannot find the phone.
I am going try to download drivers and manually install them on xp.
I will let you know how things are going. However I am bit flat out today so progress may be slow.
All the info on the forums has been very helpful, still if anyone can add something it would be great.
Well it was worth the effort. Lg Optimus One came back without losing anything.
All I had to do was re-root. Too easy with Z4root.
Anyway I had to download drivers elsewhere, load on to xp laptop disable lg modem driver in device manager, and just sit back and let it do it's thing.
At first I thought it failed as at the end an error message came up however it rebooted fine. Thanks for all the suggestions.
Were you stuck on LG logo or total black screen, no power, dead?
Just stuck on lg screen.
I am new to working with android but it must have had something to do with the boot sector.
Not sure what to do if no power.
Phone specs:
Model: LG Optimus One P500h
Carrier: Telus (Canada)
Android version: 2.2
Kernel version: 2.6.32.9
Build number: FRF91
Software version: LG-P500h-V10g
Background:
I bought this phone (brand new) in late November 2010. Within a week or two the phone started randomly powering itself off (even when the battery has plenty of charge left and the phone is just sitting on my desk). I hadn't performed any modifications at all (no rooting, no custom ROMs). Hadn't even downloaded any apps by that point.
I have never seen it happen... I'll use the phone like normal, the screen saver blacks out the screen like normal, and then I go to use the phone some time later (a few minutes, an hour, etc.) and I find that the phone has powered off on its own. It happens when I have the phone sitting on my desk, so the power button is not being pressed accidentally. The frequency is intermittent: sometimes it will go for a few days with no shutdowns and then sometimes it will happen twice in one day.
At first I thought it was a battery problem (I thought maybe the battery was overheating and the phone was shutting off to cool down) so I went to Telus and they gave me a new battery. I tried that for a week but the problem persisted. So I took it back to the Telus outlet again and they sent it away to an LG-authorized service center for repair. Doing this cost me $30 for shipping + service charges because I didn't purchase an extended warranty and I was 1 week past the 30 day device exchange period.
When I received my phone back (the service bill said that a "software upgrade" had been performed) the problem still continues! The phone has been shutting down at random exactly the way it did before it was sent away for service.
I didn't want to send the phone away for service again so I tried updating the phone's software myself - hoping this would stop the random shutdowns. I downloaded & installed the proper USB drivers using the LG Mobile Support Tool (I needed to put the phone in USB debugging mode in order for the mobile support tool to detect the phone). Everything was going fine, the LG Update Software downloaded the ~100mb firmware update file (I think V10s) and proceeded with the install but somewhere near the beginning of the install the phone went into Emergency Mode and stayed stuck there. I left it alone for 30-45 minutes just in case this was part of the install but after the program stopped responding I figured this wasn't normal. So I unhooked everything and took the battery out hoping it would reset itself but every time I would power the phone on it would bring up the LG screen then proceed to a bright yellow screen with the text "Emergency Mode!!" displayed.
I tried a few methods to get the phone out of emergency mode (hard reset/factory reset, leaving the unit off for extended periods of time, trying the mobile support tool again, etc.) but nothing worked. The only way I was able to get the phone operational again was to download the original firmware (V10g), install the MS XML sp3 parser and run the KDZ software updater (with phonemode "EMERGENCY" selected).
So with the phone running like normal again I figured I would try the update again. Now when I connect the phone and run the LG Mobile Support Tool it says a new software update is available but then when I click on "Start Updating" it goes through it's initial checks then says that this model cannot be updated, and it won't even attempt to download the new firmware update.
I have found the V10s available here: http://csmg.lgmobile.com:9002/swdata/WEBSW/LGP500H/ATLSRB/V10s_00/V10S_00.kdz
But I am hesitant to try and install it with the KDZ updater in case something goes wrong.
My questions:
1. Is anyone aware of a fix for the random shutdown problem? I read through this thread
http://forum.xda-developers.com/showthread.php?t=944847&page=2
but I didn't see any concrete solutions.
2. Do you think the V10s software version will fix the random shutdowns?
3. Can you think of anything that I'm doing wrong? Why won't the LG Updater let me install the update now?
Thanks
unlikely to upgrade to fix something, most likely factory marriage.
before upgrading try to make a hard reset
when the flash in KDZ try disabled LG Modem Driver
Maybe a problem of a bad SC-card. Try a different one (insert the new one and format it in the phone, then copy the content of the original one via usb)
Thanks for all of your suggestions.
I'll try installing with the LG Modem disabled.
If that doesn't work I will purchase a new sd card. I'm still using the stock one that was provided with the device so maybe that's causing the problems.
Okay so my phone randomly rebooted 2 days ago and when it got to the LG logo screen it froze. I tried to hard reset it, i went in to the hard reset menu clicked yes once then confirmed the hard reset by selecting yes a second time and the phone froze on highlighted yes. I have pulled the battery and tried to do this multiple times to no avail. So next i went to my PC and started google searches. Often i found things such as being stuck in boot loop which my phone wasn't, it was just frozen at the LG logo screen. Regardless I like to think of myself as self educated tech savvy (which now from reading all of your posts im not, im not even a little bit, in fact im tech stupid.) I did follow post through to the LGUP tool and downloaded a stock KDZ and got my phone into download mode>firmware update screen, i was able to get al the correct drivers and get LGUP to recognize the device and i loaded the stock KDZ and tried to do a Complete wipe reinstall. The program as able to interact with my device and went through the process, i thought i had fixed my phone. After a fresh install(or what i thought was a fresh install) i rebooted after the update and went to the LG logo screen and froze. The only difference is now when my phone starts, right before the LG logo appears i get the green android robot with what looks like open working "guts" real quick before it goes to the Logo and freezes. So back to the drawing board and i wanted to attempt some of the things ive seen like TWRP recovery etc but here i am getting lost. Forgive me if im posting things that have been answered but i keep getting confused. I dont know what the difference is between fastboot boot loader recovery mode or any of that is. also i kept noticing time and time again that my phone has to be in USB debugging mode and i dont know if it is. I cant turn my phone on to get it into USB debugging mode now anyways. Im okay with my warranty being voided and im okay with rooting if thats what i have to do to make it work. I have installed ADB and fastboot and some twrp recoveries etc but im clueless. Lastly know that i never Rooted my phone or anything but i was a torrent downloader. forgive me im triyng to provide as much information as possible.
PLEASE NOTE - I had to sign up to post here obviously and i loved how it said if you have an IOS go buy an android and come back LOL
Message Tung Kick. He can get u out of any thing
Hit thnx if this helpd
Hey guys, not sure if there was another thread with this issue but I couldn't find it.
Yesterday at work my phone suddenly froze and then restarted into a bootloop and this is what I did:
I pulled the battery out for a good 10 minutes and tried it back again and it was the same thing again with the bootloop.
I tried to put it in Safe Mode and it started up and then after awhile it froze again and jumped back into the bootloop and wouldn't go back into Safe Mode again.
This time I tried clearing the cache and that didn't work.
Next thing I tried was to Factory Data Reset the phone and it came up after that where I had to go through the whole setup wizard and everything like it was a new phone again. But not long after the phone was running fine it started restarting every couple minutes or if I go in What's App or something else.
I figured that something is wrong with the system itself so I downloaded the 22A update for the VS990 on my laptop (where the version 11B was currently on the phone) to try and update it and honestly that was a bad move because when I tried to flash VIA LGUP, the phone restarted during the process and now I'm getting this on at the top left corner of the logo screen then it reboots continously:
Boot verification failed!!
- cause: MISMATCH_SIG_LEN
Can anyone please help me out, love this phone so much and not looking to get a new one or change it anytime soon :crying::crying:
Are you in warranty or have insurance with extended warranty? Sounds like you'll have to contact VZW and get a replacement. Hopefully you're covered.
Sent from my VS990 using Tapatalk
I'm really not sure as I bought the phone 2nd hand from Ebay, bought it in August so probably., so would have to contact the original owner and see what he has to say. Sigh only if I could get it to stay on the logo screen at least without restarting I could try flashing it again.
I've been very frustrated, its only been like 1 year since I bought it. First, I got bootloop out of nowhere after updating (I got bootloop just 1 week after i picked up the phone from service center, the audio jack was broken at that time), then the phone is not detected on any pc. I tried downgrading from SD card, and it works at first, then the phone restarted itself, then I got bootloop again. I tried the same method (upgrading and then downgrading) then it showed warning that the phone is in Red State when i entered Android Recovery. It says the phone is in Red State, it is corrupted and cannot be trusted, it gave me a link that doesnt solve my problem. The question is, is this the end? do I still have hope? or should I give up and let it die?