Database Develop

Problem: don't recognize charger & don't go in USB mode!

I've a problem after (more than one) firmware update....
My P970 don't recognize recognize charger & don't go in USB mode (PC don't view the SD card)
I try CM7 and Nova, I also have a brick after flashed a kernel Nova in a Rom stock.
After that I put a new Rom stock v10c by KDZ but now have this terrible problem....
How can I solve it....?
Many thanks

have you tried to do an hard reset?

interdan said:
have you tried to do an hard reset?
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Yes by enter in the hidden menu (3845#*970#) but nothing change....

I have the same problem since 2 months. I'm currently with the last temasek Kang release, kernel nova 11c.
The only way to charge correctly the battery is to wait the phone self extinction, by low battery, wait around 10 minutes, and plug the charger. Another weird thing: when I plug the shut down phone to sector, it will autoboot (everytime).
Else, when I try to charge the phone, 2 different behaviours:
1) most of time it charges anyway, but not detected as charging. The phone overheat, and could self extinct because of that. Time of use with a battery charged like that is very poor.
2) sometimes, nothing happen. No charge.
I'm very bored by this bug.
Sent from my LG-P970 using XDA App

gornog said:
I have the same problem since 2 months. I'm currently with the last temasek Kang release, kernel nova 11c.
The only way to charge correctly the battery is to wait the phone self extinction, by low battery, wait around 10 minutes, and plug the charger. Another weird thing: when I plug the shut down phone to sector, it will autoboot (everytime).
Else, when I try to charge the phone, 2 different behaviours:
1) most of time it charges anyway, but not detected as charging. The phone overheat, and could self extinct because of that. Time of use with a battery charged like that is very poor.
2) sometimes, nothing happen. No charge.
I'm very bored by this bug.
Sent from my LG-P970 using XDA App
Click to expand...
Click to collapse
Check your USB cables, the pins inside. As well as the USB connector on the phone itself. Use a different cable. I/we never had this kind of problem (not charging so it isn't a bug or something but rather hardware problem. If not USB, battery problem.
If not, do a full wipe and reflash the KANGed RC0. If problems persists, revert to Froyo stock so you could test. I'm after the warranty for you if you still have the problem in Froyo.
That auto reboot is well known for CM7. Again, this also is not a bug but a feature.

gabwerkz said:
Check your USB cables, the pins inside. As well as the USB connector on the phone itself. Use a different cable.
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Checked with 3 different cables and several chargers (including original ones). Phone USB connector seems OK, but cannot really check it.
gabwerkz said:
battery problem.
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2 batteries. Reproducible.
gabwerkz said:
If not, do a full wipe and reflash the KANGed RC0. If problems persists, revert to Froyo stock so you could test.
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Click to collapse
Did full wipes several times, but no effect. It's hard to go back to stock Froyo without phone-to-computer connection, and I don't want to loose ability to root my OB after that.
gabwerkz said:
That auto reboot [...] is not a bug but a feature.
Click to expand...
Click to collapse
OK
Anyway, thanks for all. If we are only few people with this bug, it seems to be a material failure indeed.
I may look for the warranty, but as I changed country (from EU to Canada), it will be quite complicated, and I need my phone :/. Just a (stupid) idea, maybe the phone didn't support the 110V, after 220V charging usage (but charger should support these 2 voltages).

If not, do a full wipe and reflash the KANGed RC0. If problems persists, revert to Froyo stock so you could test. I'm after the warranty for you if you still have the problem in Froyo.
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Click to collapse
I come back to v10b europe, across a lot of wipe....
Fortunatly the charger was recognized....
The problem was't "don't charge" but "not recognized"
Unfortunately today try to flash the Quasar kernel, and now I have the same problem.....
The charger, charge, but don't recognized and the USB to PC don't work's.....!!!

Turn phone off
Remove battery
Wait 10 seconds
Put battery back.
Turn phone on

I had this issue on my Optimus Black with stock Froyo rom.
My symptoms were:
- device recognized as 'modem' in Windows but no option in Android to switch into "USB Mode". Phone update software would still recognise phone was connected and I could run a firmware recovery using LG tools. Reflashed and reset to factory many times didn't fix the issue.
- if phone switched off and plugged into charger or USB would go into "SW Upgrade" mode
- I could force "USB mode" to appear on the phone by opening the hidden menu and switching the USB to "AP Mode" I think it was.
- I found the USB connections would disconnect after a period of time and sometimes the "AP mode" workaround wouldn't work.
- tried different cables, chargers and PCs and all present the same problems.
- having the battery unplugged for an extended period would get the phone working temporarily but the problem would come back after a short while.
Eventually got on to LG Support and sent it off for repair. They replaced the motherboard as faulty.
I think the problem may have been caused by a faulty car charger that I have since replaced, but ultimately replacing the motherboard on the phone fixed the problem.
If your phone is covered under warranty, I'd be sending it off for repair as it is probably a hardware issue.

brownowski said:
I had this issue on my Optimus Black with stock Froyo rom.
My symptoms were:
- device recognized as 'modem' in Windows but no option in Android to switch into "USB Mode". Phone update software would still recognise phone was connected and I could run a firmware recovery using LG tools. Reflashed and reset to factory many times didn't fix the issue.
- if phone switched off and plugged into charger or USB would go into "SW Upgrade" mode
- I could force "USB mode" to appear on the phone by opening the hidden menu and switching the USB to "AP Mode" I think it was.
- I found the USB connections would disconnect after a period of time and sometimes the "AP mode" workaround wouldn't work.
- tried different cables, chargers and PCs and all present the same problems.
- having the battery unplugged for an extended period would get the phone working temporarily but the problem would come back after a short while.
Eventually got on to LG Support and sent it off for repair. They replaced the motherboard as faulty.
I think the problem may have been caused by a faulty car charger that I have since replaced, but ultimately replacing the motherboard on the phone fixed the problem.
If your phone is covered under warranty, I'd be sending it off for repair as it is probably a hardware issue.
Click to expand...
Click to collapse
All of my thanks.....
I've the same problems.... All as you described!!!!
So after Christmas time, I'll go to an LG support!

problem found
I own a celular repair shop in baja california mex. and resently some one brougth a LG Optimus Black p970 with same simptoms ,heat,no power no usb conectiviti and chargin problems I found a conector on the inside part of the device with some visual damage (over heat) plastic melted just a minimun part of it so i check the hole conector and I found that two conections were lost by the overheat problem
this is coused by the charging conection bad design
Ask no Problem

I'm having same problem as stated by others. This is annoying me.
Its just been 2 months I've got this phone and it feels real bad to face such problems so soon.
Am facing problems like. I connected my phone to PC via USB and it showed me the option to Turn on Mass Storage, I clicked on it and it showed me the Mass Storage Drive on my PC too. But in just minute or two it disconnected on its own and SD Card started scanning and again it got connected by its own but then after that it disconnected again and it on pc it started to install drivers again. Which were already installed like 5 or 6 of them.
I formatted the phone twice. Removed the battery for around 5-6 minutes. Used like 4 USB cables. Installed LGE drivers from LGE Software updater.
This is so bad.

What software are you guys using? Which ROM?

I've also been experiencing this situation, one time this problem caused a loss of all my SD data! (my sd card got corrupted)
I'm on Zeus V6.11 right now, and I must say that USB storage is working great for me in CWM Recovery, even though it doesn't work on my phone when it's turned on in Android.
How to check whether it's an hardware problem in my phone, or just a fault of my compuer?

Experiencing this problem for around two months now. I suspect my charger to be damaged. Since I can charge the phone via the USB port. When I try to charge the phone via the charger it doesn't respond, but when I pull it off the charger the phone will boot. Had the motherboard already replaced by LG service center, but the problem wasn't solved.
The phone can connect to PC without any problems. PC can connect to mass storage.
So now, I'm using a Corby II charger and it seems to do a great job at charging my OB

N00BY0815 said:
What software are you guys using? Which ROM?
Click to expand...
Click to collapse
Currently I'm using Stock Root v20b rom.
No software's nothing, as I stated I even formatted my phone twice.
It was working well around 2 days back. I had just plugged my usb cable to phone via pc and then all of a sudden the phone started acting weird, like it was connecting and disconnecting frequently, and then it started to install the LGE drivers by itself, which were already installed didn't even touch them nor uninstalled anything.
Tried using Sony Xperia Neo V's USB cable too, but no luck.

Once I lost my USB cable.
then i brought a cheap uUSB cable. Icud transfer data from PC, but charging rate was really very SLOW... nearly 4hr.!!
Now i replaced it with new Original one, n every thing working Perfect...

I am seeing the same problems - charger is not recognized and USB mode is not working. Different cables / chargers, different Win7 and Ubuntu PCs.
I formerly used a rooted V20o from here, with which the problem first appeared, now I went over to Zeus 6.22, which still shows the same problems.
I believe the hardware is faulty.
Can anybody help me how to regain warranty? I have the stock V20o (unrooted), but since USB does not work, I cannot flash it the regular way. Is it possible now to flash from sd card?

Try with LG standard update software, you have the emergency menu....

If you want to viwe your sd card try the Samba Filesharing app. I have the same problem on cm7 and with this App i can see my SD Card

Strange charging issue

Hey everyone. Been using the Z1 for a while now and ran into a strange problem two days ago. For no apparent reason, my phone stopped charging unless it is plugged into computer that was turned on. If I use any normal charger, it doesn't recognize it. If the computer is off, no charge. Only when connected as MTP does it charge. And charging via the computer's usb charges much slower than it used to. File transfers and everything also work fine.
This happened shortly after I upgraded from the old momxdified to the newest version. Thought it could be firmware so I did a full clean flash of the stock 534 ftf and no luck. Did repair in PC Companion and no luck. Now I'm thinking it has to be hardware related?
I can now sometimes pick up a charge if I use a cheap wall charger with a very low power output. But only sometimes. The stock Z1 charger doesn't work at all.
Figure I'll go to the service center later, but wanted to check here first in case anyone has seen this or has any ideas.
Cheers
Sent from my C6902 using Tapatalk

301stSpartan said:
Hey everyone. Been using the Z1 for a while now and ran into a strange problem two days ago. For no apparent reason, my phone stopped charging unless it is plugged into computer that was turned on. If I use any normal charger, it doesn't recognize it. If the computer is off, no charge. Only when connected as MTP does it charge. And charging via the computer's usb charges much slower than it used to. File transfers and everything also work fine.
This happened shortly after I upgraded from the old momxdified to the newest version. Thought it could be firmware so I did a full clean flash of the stock 534 ftf and no luck. Did repair in PC Companion and no luck. Now I'm thinking it has to be hardware related?
I can now sometimes pick up a charge if I use a cheap wall charger with a very low power output. But only sometimes. The stock Z1 charger doesn't work at all.
Figure I'll go to the service center later, but wanted to check here first in case anyone has seen this or has any ideas.
Cheers
Sent from my C6902 using Tapatalk
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Sounds like a hardware issue, but try a hard power down, volume up and hold the power button down until you feel multiple vibrates, power the phone back up and see if that helps.

danw_oz said:
Sounds like a hardware issue, but try a hard power down, volume up and hold the power button down until you feel multiple vibrates, power the phone back up and see if that helps.
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Click to collapse
Thanks for the response. Tried that before going with the full wipe ftf flash or pc companion repair, and no luck. Finally took it to the service center today and they spent an hour reinstalling the software (no doubt doing the exact same thing I did twice before bringing it to them) then offered to replace it. Just going to miss the old Z1 for the next week, when I'll have to rely on my old S2 to take pics of my engagement celebration this weekend.
Appreciate the response and suggestion man.

I had similar problem with non original wall and car chargers because the output was to low so the phone do not recognize them at all. I didn't test the phone with the pc yet, I prefer take out the SDcard and copy anything what I need directly. I hope don't have this problems anymore so I will use original chargers only.
EDIT: SDcard not simcard..

Phone unusable while plugged into USB

Im trying to help my friend with his Xperia Z1. A couple of days ago, it reboot when it got plugged into charge. Then after that, everytime its connected to USB the phone becomes unusable.
Its completely stock 4.4.2 and while plugged into USB it becomes really really hot, battery discharges about 10% every minute or so and the screen flickers and can't be used (Feels like 100% cpu usage).
When you go into running apps, you can't see it because it constantly refreshes the list, and when its plugged into a computer, it works for a few seconds and then stops responding.
It works perfectly while not charging, and can be charged using the magnetic plug (Dock). Plugging into stock charger USB, car usb, or a computer all results in a freeze up/100% cpu usage etc If the phone is completely off, it can charge up very slowly while using USB and does not get hot, however the fastest way to charger it is via the dock option.
This is Australian stock, and is the second phone he has had to do this, his first phone he bought in Nov 2013, updated it to a 4.3 build in December and it did a similar thing, got this late December 2013, and has lasted until now, and is unusable while connected to USB.
This means it can't be updated, backed up, rooted or anything and sony want it to be sent away for weeks. Has anyone had any similar problems or know of a solution. It doesn't feel like its a hardware thing, but possibly something has shorted in the plug.. Not sure?
Thanks

pcxnet said:
. Has anyone had any similar problems or know of a solution. It doesn't feel like its a hardware thing, but possibly something has shorted in the plug.. Not sure?
Thanks
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Click to collapse
Haven't had this issue myself but it does sound like a hardware problem rather than software, but software could also be to blame too.
It's probable because the phones on pure stock that it's the apps that are installed on the phone.
To eliminate this, make a back up of media files like pics, videos, music. Then flash an FTF file so that you have bare bones stock.
These can be found in the mega collection in the general section.
Run some tests on the charging capabilities whilst it's completely stock and empty and you'll then know if it's a hardware issue or not, if the problem re occurs then it's hardware, if not then it's probably something that was installed or a load of things that were installed.
If it's the latter then try to reduce whats coming in and out of the phone, having a tonne of apps with a large footprint is going to bring any phone to it's knees and that's with any phone or even a tablet.
I don't think flashing an FTF while in flashmode should do much harm and the OS isn't loaded at this point either so the load should be minimal, if he or yourself are not comfortable with this then i'd suggest biting the bullet and sending it off to Sony.
Hope this helps.

Might not be the same, but I had this on the xperia s. Turned out the USB lead was defective.
Sent from my C6903 using XDA Premium 4 mobile app

dladz said:
To eliminate this, make a back up of media files like pics, videos, music. Then flash an FTF file so that you have bare bones stock.
.
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Click to collapse
Hi Dladz, thanks for the suggestion, can the FTF be flashed if its not rooted ? I dont know much about sony, I have a rooted/rommed LG G2, but not sure about the Sony files.
Also, can I flash it if I can't connect it to USB ?
And to the other reply, its definitely not the lead ,we've tried about 10 different leads.

Hi, I've had the same issue.
Try to plug in USB, than use system info *#*#4636#*#* -> Battery information
Look on "Battery status" line (dont know exactly how it sound on english ROMs) if youre see permanently changing status Charging (USB) <-> Battary the 90% probability you have hardware problem.
I fix it only in sony service center with motherboard change.

[Q] Sony Xperia Z1 - Completely dead (no led/no nothing)

Hello.
Please take your time to read this message.. It contains detailed information about this case...
I have a broken Z1 phone which I'm trying to fix. It all started with the phone turning off randomly, and wasn't possible to turn it back on. Not using the power button/red reset button or using power + volume up together (this worked previous times).
When the screen died, I could see white blocks of pixels moving around a few seconds before it completely shut down. There were no signs of life after that, the LED was completely dead as well. The computer didn't notice the device if I connected it with a USB cable. If I tried to charge the phone, the LED wouldn't turn red.
I decided to wait for a week in order to see if the battery could run out of charge. So after a week I took the USB cable and started to charge it. The LED turned back on, with a red color, which is correct when it is charging.
I thought it would work to boot - but nope, it did not work at all. Now is the time I decided to open up my device. I used a heat gun to heat the back edges of the phone. I then used some palastic tool to open the back cover from the phone. It all went very smooth and I disconnected the battery from the phone (removed the cable from the motherboard).
I let it be for about 10 minutes. After that I inserted the cable back to the motherboard, and tried to boot. This time, nothing happend again.. So I started to charge it, and a screen came up saying 1% battery... So I let it charge the battery for a few hours until it rached 100%.
The battery is now 100% charged. The phone still refuses to boot up the first time. The second time I tried, it worked. I was able to connect my phone to my computer, so I took a backup of all files. I downloaded Sony PC Companion, and made a factory reset. This went very smooth as well.
I thought everything was fixed after this - but nope. The phone randomly shuts down a few times, and each and every time, I'm just starting it again (it did crash both when I was using it, and when I did not). I was speaking on the phone with it yesterday for 1 hour (used a bluetooth device), without the back cover connected to the phone. The call went very good and the phone didn't crash anymore that evening.
I thought everything was good, once again. So I was letting my phone be powered on during the night when I was sleeping. When I woke up, I went to check the phone - and it was: dead.
Since this, I have not been able to power it on again. No matter what I do. I have tried to disconnect the battery, check for cables that aren't fixed and so on.. But everything seems to be OK.
My thought was that the battery was bad, so I went to a store in order to check if the battery is OK or not. They tested the battery with some kind of device, and said it has about 40% charge left.. And they didn't see any issues with it.
So... now I'm wondering, what kind of parts do I need in order to fix my phone? Is it just a new battery, or is it the whole motherboard that is gone? What do you think? I know you guys are very experienced, so I have high hopes of help from you.
Regards

Hello!
Sorry to hear about what happened to your Z1, I'm currently in the state that my phone has a red LED when connected to anything and stays like that, PC doesn't even recognize it.
I see your problem is different, I'd suggest you to start here and hope for the best. Unfortunately I can't do that to my phone because PC is not recognizing my device.
Good luck
Regards,
~J2C

Just2Cause said:
Hello!
Sorry to hear about what happened to your Z1, I'm currently in the state that my phone has a red LED when connected to anything and stays like that, PC doesn't even recognize it.
I see your problem is different, I'd suggest you to start here and hope for the best. Unfortunately I can't do that to my phone because PC is not recognizing my device.
Good luck
Regards,
~J2C
Click to expand...
Click to collapse
Thanks for your reply. I have already tried that, however, my PC is not recognizing the phone either - so I'm not really sure how to proceed.

Robinjoeh said:
Thanks for your reply. I have already tried that, however, my PC is not recognizing the phone either - so I'm not really sure how to proceed.
Click to expand...
Click to collapse
Then all I can say is.. Welcome abroad!

Just2Cause said:
Then all I can say is.. Welcome abroad!
Click to expand...
Click to collapse
Well, thank you...
I decided to take apart the device even more, and I found something on my motherboard, which probably is rust.
Check it here:
http://forum.xda-developers.com/xperia-z1/help/dead-motherboard-sony-xperia-z1-pictures-t3143905

Hi, I think my z1 is not yet completely dead, it still recognized by my PC. Its just no display, is there way to fix this issue,?thanks

MEandMC said:
Hi, I think my z1 is not yet completely dead, it still recognized by my PC. Its just no display, is there way to fix this issue,?thanks
Click to expand...
Click to collapse
Hello.
Have you tried Volume up + power button pressed together for about 10-15 seconds? Do you feel any vibrations, how many?

Robinjoeh said:
Hello.
Have you tried Volume up + power button pressed together for about 10-15 seconds? Do you feel any vibrations, how many?
Click to expand...
Click to collapse
Yes, I watch it over YouTube. Still not working

MEandMC said:
Yes, I watch it over YouTube. Still not working
Click to expand...
Click to collapse
Download Sony PC Companion, plug in your phone and follow the instructions in order to reset your phone. If that doesn't work, then you have probably had water or some other hardware failure.

Is this problem will cost me a lot of money if I'll bring it back to Sony for them to repair?

MEandMC said:
Is this problem will cost me a lot of money if I'll bring it back to Sony for them to repair?
Click to expand...
Click to collapse
Not if you repair via Sony PC Companion. It will re-install the system on the phone, so in case it is a software error, it will be fixed.
However, if that doesn't help, then you need to check if you have any warranty valid on your phone. Even if you have warranty, it is not sure that Sony will cover costs for repairing your device. For example water damages will most likely be refused, and you'll have to pay for it yourself. I don't know how much it would cost though.

[HELP] Samsung Galaxy SIII LTE GT-I9305 won't turn on or charge, no reaction.

Phone: Samsung Galaxy SIII LTE GT-I9305
Problem: It doesn't turn on or charge, absolutely no reaction
ROM: Stock KitKat 4.4.4
The phone had the stock KitKat 4.4.4 flashed by me in 2016. For about 4 years everything was ok, it only occasionally hanged up so it needed to be restarted by removing battery or holding volup+power. Also at the end the charging port sometimes caused little problems so it was a lil fussy about the cable. Half a year ago the phone was replaced by a new one, so it was shutted off and put 'as is' into the locker without removing the battery (was fully charged before). Few days ago, when I needed it as a backup phone it doesn't boot up or charge the battery - there is absolutely no reaction. The battery measured by micrometer showed 3.87V - I've fully charged it in an external charger. I also cleaned the charging port and folded back the pins in it. Checked with the multimeter the contracts looks good, the current is able to flow. Anyway the phone is not charging and nothing happens when I'm pressing the power or even the mode combinations volumeup/down key + home + power for more than 30 seconds. It looks like there is flowing a 0.11A current and a battery voltage drops about 0.06V when it's connected to charger and I'm pressing the power button. The power button itself is ok, I've tested it with a multimeter. Nothing changes when I'm connecting the charger directly for the pins for battery.
So I've checked on the web that there is a common problem in that models called "sudden death" so the memory gets damaged after some time if using the stock old kernel. It had the symptoms (hangs, restarts) but I even didn't know about that problem, and I only know that it had a stock KitKat, don't know anything about the bootloader or kernel versions. But is it possible that the phone which was turned off and only laid with battery inserted in a locker for half a year get damaged?
I've tried connecting the usb jig, the "debrick.img" sdcard method (I've created the image by myself with the stock ROM file using a tutorial), the uart connection with both 150K and 560K resistors and NOTHING seems to work. Is there anything else that I could possibly try doing by myself to get it back to work? I'm afraid that the only way is replacing the memory or trying to re-flash it in an external programmer. The phone has MHL and LTE so would be good as an multimedia and web player for an old TV so I would like to save it. But anyway, at this moment it's a hard brick. Please help.

Mmmh i think its memory is dead, my s3 dead same u s3, and no response from anything, I change s3 motherboard with lte version.

Yea, it looks like the most probable cause is damaged eMMC chip on board. I only wonder why it got damaged just lying switched off in the locker, the battery was in unfortunately so maybe that matters. Probably replacing only the eMMC memory with a new, programmed one would fix the problem. Anyway, because it's nothing to be quite sure about, UART doesn't work to make sure about it and the current value of the used working phone is close to the eMMC chip it's not worth it and it's probably time to just toss it out or sell as an parts donor. So sad, that Samsung didn't send any notification about that problem directly to the phone via the notification channel, I had no idea about that problem before. Fortunately I've migrated all the crucial data to the new phone before so it's not a big loose at all. Thanks anyway.

ah Mathey, when my default smartphone was s3 i usually was turn off it when i going to sleep and one day without signal my phone not want turning on when i woke up that morning, i have a charger that do a little beep when a device is conneted to it and s3 was do it but not turn on.

So maybe half a year ago when I was doing data transfer to a new phone it was the last time when the memory was in good condition, sth caused damage and the next boot was not possible, but the time I tried to do that was the few days ago. Fortunately I've moved everything crucial, so it's not a big lost. We could only wonder if leaving the phone with the battery inside can cause the problem or that's something what happens only when the phone is on and after a reboot there is no guarantee it will start up. Someone told me that GT-I9300 with the same problem could be bringed back to life just by USB, but the GT-I9305 have a different memory chip and that's not possible. Only the external programming. Sad but true :|