Develop Bugs

[Q] USB/Battery Charging Bug

Alright XDA, checking if anyone else has got this issue?
Bought the galaxy nexus almost three weeks ago, everything was fine with the phone until last week thursday. My battery was running low so I decide to charge it, only to find that it wasn't charging. I took out the battery and put it back in, still wouldn't charge (or at least it didn't say it was charging). I left it in the charging plug whilst the phone was turned off, hit the power button and the black charging screen comes up. I turn it back on to see that the battery is at 44%, after being at 12% 5 minutes ago.
Anyway, ever since then the phone hasn't been charging right. I plug it into the charger, and it doesn't recognize that its charging, or maybe it actually isn't? It takes a while for it to recognize that it's plugged in, and takes a while to actually start charging. I unplug the phone after it's finished charging and is at 99%, only for the battery icon to display that it is still charging.... it's constantly changing from charging to not charging even though I'm not doing anything.
I got the battery indicator app and that would display that the battery has been discharging since say 1 o clock in the afternoon, yet I took it off the charger at 9 o clock in the morning,
Furthermore, I'm now trying to charge it through my computer and put some music on my phone, but my computer won't even recognize that anything is plugged in even though it is quite clearly charging through the computer. (have had to plug it in and out several times, and sometimes it'll recognize that its there...)
is the USB plug ****ed? should I just send it back? I would go to my provider to get a new one from them as I still have warranty and thing, but they will only accept returns within the first 7 days of purchase. Otherwise that leaves me with sending it to samsung which is my last resort because they'll probably take their sweet time getting the phone back to me and I'm going to leave the UK for 4 weeks next week and I really want to take my nexus with me instead of risking it not coming back before I leave.

Have you tried a different USB cable?

New2Houston said:
Have you tried a different USB cable?
Click to expand...
Click to collapse
Yes, I've tried the original charger, a blackberry charger, USB cable from original charger through computer, and another micro-usb cable. All have the same problem with recognizing that its plugged in/charging... And now funnily enough it's unplugged from my computer but it's still saying it's connected as a media device.

Don't power up or turn off samsung devices with the USB connected. It messes up the battery stats. I've had the same thing happen to me before on the Nexus S. Since then I learned not to do that on my phones.
I don't know anything about your other charging issues though.
edit: you could always try a factory reset (which will wipe the whole device) to make sure it is not software related.

Luxferro said:
Don't power up or turn off samsung devices with the USB connected. It messes up the battery stats. I've had the same thing happen to me before on the Nexus S. Since then I learned not to do that on my phones.
I don't know anything about your other charging issues though.
edit: you could always try a factory reset (which will wipe the whole device) to make sure it is not software related.
Click to expand...
Click to collapse
Interesting about the Nexus S, trying to track back if I unplugged or powered up the phone with USB in...
I just tried factory reset - still showing up that the battery is charging even though it isn't plugged in

Hi, I have the same problem since the 7th of December, first i thought an app or some sync was eating up the battery (i updated G+ and facebook the previous day) but then I noticed that it was not charging, now my GN is dead. I manage to turn in on when is on the charger a couple of times but now not even that. (I have used several chargers and usb cables with no luck)

Did you manage to solve the issue? I sent mine today to Samsung after trying to get a replacement from Phones 4 u.

Possibly chip in battery is bad? Havent confirmed but supposedly we have fuel gauge chips.
Sent from my Galaxy Nexus using xda premium

Has anyone else experienced this and fixed it?
Started happening to me three days ago and I can't fix it at all.
Sent from my Galaxy Nexus using XDA App

Iv had this problem twice now.....
it wouldnt charge past 12%, it would not show the charging symbol.... i shut off the phone (it seems to charge while the phone is off).. after 5 minutes, i turned it on and the phone was at 65%?
I tried to tell the guy at the verizon store and he would not do anything about it unless he could see the problem happen.... this doesnt always happen and its annoying as hell...
im thinking it is a software issue since it charges fine while the phone is off...

Luxferro said:
Don't power up or turn off samsung devices with the USB connected. It messes up the battery stats. I've had the same thing happen to me before on the Nexus S. Since then I learned not to do that on my phones.
Click to expand...
Click to collapse
I was looking for a cause/solution as to why my battery life reporting seems so erratic, I will definitely take this advice and see if this might be why. So it should be ok if I only connect and pull the charger with the phone already on? What if I plug the charger in with the phone completely off and then pull it before booting, is that alright too?
It's funny all the new rituals you need to learn to get around the quirks of a new device (like having to turn the screen off and then back on again after docking my Nexus One if I wanted the touchscreen to work right haha).

I've been having strange issues with my Galaxy Nexus and charging for the past few weeks - I can't seem to get it to charge over 50-60%. Also, whilst it's 'charging', the 'Battery' details page reports 'Discharging' or 'Not charging', even though there is a charging icon in the status bar?
I left it to charge for around 9-10 hours last night, off the mains charger, and it only got to ~45%...
...as I mentioned, whilst it is charging, it never reports that it's charging. The lock screen also suggests to 'Connect your charger'...
...charging whilst the handset is off still results in a half charge. I've tried many different chargers/cables with no luck.
Strangely, I used to be able to only charge the handset off of USB, to 100%, but I've now lost that 'work around' :-(.
I guess I'll phone Samsung returns and see what they say. I'll post their response, in-case anyone else hits this issue.
---------- Post added at 10:50 AM ---------- Previous post was at 10:12 AM ----------
Looks like they're sending me a jiffy bag to return it to them...

hmmmm, sounds broken

Mine is charging OK.
My biggest problem is that even when I have my charger unplugged, the icon is still showing that it's charging.
Look at the screenshots, the battery level is going down the whole time because I'm not charging it but it's showing a bar for charging at the bottom.
And if you look at the time on the clock, a few minutes go by and it still says 38 seconds on battery.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
The gap in the stats is from a battery pull.
Sent from my Galaxy Nexus using XDA App

Did you ever find a solution for this problem? I'm experiencing the same problem and am unsure whether to try and return the phone or send it in to samsung.

Nope
Have to back my phone up in the next few days and send it back for repair/replacement.
It takes ten days, but if you haven't sent it back by then, I'll let you know what they say the problem was.
Sent from my Galaxy Nexus using XDA App

Many have reported the same problem. See http://forum.xda-developers.com/showthread.php?t=1427539

ray2jerry said:
What if I plug the charger in with the phone completely off and then pull it before booting, is that alright too?
Click to expand...
Click to collapse
That's what I do most often, it works fine for me (but I've had no battery problems so far).

Did any one found a solution for this problem?

http://code.google.com/p/android/issues/detail?id=23789
If anyone experiencing this hasn't "starred" the issue on Google, please do so at the link above.

[Q] My HOX is shutting down after unlocking sim

I think its something with the battery.
when it's totally full the phone works normally, but it will reach very fast like 40 percent, i unlock the phone and it turns off. I turn it back on its 60% and its turning back off when unlocking SIM.
Really strange, i've wiped everything, tried some kernels/ROMS,
I'm on HBOOT 1.31 and the problem is the same for all ROMS also ICS Roms
I've tried to underclock it, because it's becoming hot, but that doesn't make a difference.
Maybe it's something with Wipe battery stats, i've done that for a ROM, it was necessary. Can't remember with ROM that was..
I hope someone can help me
btw sorry for my bad english

Someone?
Anyone maybe? :angel:
It's really annoying.
Today it was like 33% and suddenly it was shutting down, I turn the HOX back on and after I unlock the SIM, its off again
:crying:

Really no one can help me?
Really no one can help me

thomas8787 said:
Really no one can help me
Click to expand...
Click to collapse
do not underclock the processor, in most of the cases it causes randoom reboots

Edit : was reading wrong !
Did u try the phone without simcard ?

matt95 said:
do not underclock the processor, in most of the cases it causes randoom reboots
Click to expand...
Click to collapse
i always have min 100 MHz.. don't know if this is to low..?
MarcelHofs said:
Edit : was reading wrong !
Did u try the phone without simcard ?
Click to expand...
Click to collapse
The phone works normally, but when it reaches 40% or less, he is shutting down, and turn it back on, after unlocking SIM, it turns off.
But when i don't insert the SIMcode it stays on, also in, recovery or bootloader...
thnx for the help..

thomas8787 said:
i always have min 100 MHz.. don't know if this is to low..?
The phone works normally, but when it reaches 40% or less, he is shutting down, and turn it back on, after unlocking SIM, it turns off.
But when i don't insert the SIMcode it stays on, also in, recovery or bootloader...
thnx for the help..
Click to expand...
Click to collapse
well, if the rom came with that MHz settage shouldn't be a problem, but if you underclock the standard MHz of the rom it can cause random reboots or slow wake up time

Oké...but did u use the phone without simcard ? Does it keep on functioning when the batt gets below 40% ?

MarcelHofs said:
Oké...but did u use the phone without simcard ? Does it keep on functioning when the batt gets below 40% ?
Click to expand...
Click to collapse
yes, it does, also with simcard. untill i unlock it
so maybe it has something to do with the radio, but i've never changed the radio

So i'm really desperate now, don't know what to do now..
Erased almost the whole phone
SD format, etc.
Installed the latest RUU with ICS & JB
I've tried to create a logcat, the last 18 sec before a unexpected shutdown.
Trying to create some more..
http://pastebin.com/cccxzAQi
I really hope someone can help me.
Maybe a battery replacement is the only solution..?

thomas8787 said:
So i'm really desperate now, don't know what to do now..
Erased almost the whole phone
SD format, etc.
Installed the latest RUU with ICS & JB
I've tried to create a logcat, the last 18 sec before a unexpected shutdown.
Trying to create some more..
http://pastebin.com/cccxzAQi
I really hope someone can help me.
Maybe a battery replacement is the only solution..?
Click to expand...
Click to collapse
Code:
12-09 18:58:16.973 I/BatteryService( 430): Shutdown device! Battery temperature is too high (> 68.0 degree celsius)! battery temperature is 1587
Is your phone hot?
It might be a faulty temp sensor causing these shutdowns.

TToivanen said:
Code:
12-09 18:58:16.973 I/BatteryService( 430): Shutdown device! Battery temperature is too high (> 68.0 degree celsius)! battery temperature is 1587
Is your phone hot?
It might be a faulty temp sensor causing these shutdowns.
Click to expand...
Click to collapse
Thnx for fast reply!
Sometimes the phone is very hot, but not always, I check it everytime.
Today the phone was very hot, but it was right after I installed the RUU, so no apps installed etc.

thomas8787 said:
Thnx for fast reply!
Sometimes the phone is very hot, but not always, I check it everytime.
Today the phone was very hot, but it was right after I installed the RUU, so no apps installed etc.
Click to expand...
Click to collapse
Get an app called cpu spy to see if your cpu is running 100% all the time.
Try to get another logcat so I can check it out tomorrow.
Sent from my HTC One X

And you could try better battery stats .... To see what's happening with you apps/phone/batt around the shutdown ....
Just a suggestion i have the tendency to think out loud

TToivanen said:
Get an app called cpu spy to see if your cpu is running 100% all the time.
Try to get another logcat so I can check it out tomorrow.
Sent from my HTC One X
Click to expand...
Click to collapse
Another one here:
http://pastebin.com/4CgQ8n07
And again:
Code:
12-09 21:40:29.924 I/BatteryService( 432): Shutdown device! Battery temperature is too high (> 68.0 degree celsius)! battery temperature is 1181
But device doesn't feel hot.
Now he shuts down immediately after booting, probably because it's still to hot..
and the green/red light is flashing so, he is using more power than on USB on booting, not a bit weird?
I will use the battery stats app for a while to get some usable stats, very curious why the temp is so high
The CPU Spy Plus app says this after 20min:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
And sometimes after a boot, I get this battery icon:
Don't know what it means, but if the icon is there, it won't take long before the next shutdown, mostly right after I insert the simcode..

Your battery is overheating, but it doesn't look like the phone is drawing enough power to cause that. New battery seems like the next step.

But the weird thing is, now if I turn the HOX on, he switches off immediately after i unlocked the sim.. disconnected from UBS/charger.
But if i connect to USB or charger it stays on, and battery isn't empty or hot.

According to the reading from your temperature-sensor, the temp of the battery is over 150°C (1587) which should be enough to melt the casing.
It almost certainly isn't correct.
My best guess is, that it is a hardware failure. New battery might be a good idea.
Edit: dial *#*#4636#*#* and press battery info. Post results here please.

A week ago I replaced the battery.
No problems anymore!
Thnx for the advice :good:

HTC one x shuts off randomly
thomas8787 said:
A week ago I replaced the battery.
No problems anymore!
Thnx for the advice :good:
Click to expand...
Click to collapse
I have been having this same problem for a month now.
my HTC one x is about a year old. just recently it started going off at random, especially when I insert my SIM card.
the phone operates well when the SIM is ejected but shuts off randomly when I insert my SIM card.
I have being thinking it has something to do with the radio.
I have installed battery calibrate and repair and its say the battery is ok and in good status.
I'm not sure what to do, I don't know if this is a sofeware issue or a hardware problem

Zync Z930 battery prob. solved

We all know that zync z930 have very poor battery backup,
it discharges in about 45min to 1hr. . this is very disappointing .
i have observed that the battery is also 3200mAH and motherboard is not power saving.
but the main problem is battery is not acually charges fully. there is problem is battery calibration and it can't be solved by any battery calibration app.
So for now i have a solution to charge your battery fully.
1)disconnect all chrger,USB cables from TAB
2)Turn off your tablet , press reset once.(if needed)
3)now Press power button ONCE, & then press and hold volume UP button.
Now you will see Recovery menu.
4)now connect your charger, then select power off option from recovery menu.
use Vol. up down keys & power button to select.
5)Wait until battery get charged fully , when RED light turns off remove charger and turn on ur tab.
Feel the difference of backup.
ENJOY
To get more backup i have connected extra battery of 1300mAH parallel with original one.
i have found it on china mobile. Now m getting 4-4.30 hrs continues backup
See below Pic
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

So everytime we have to charge by the above method?
Or just charging by this method once will fix the problem permanently?

No improvement even after charging by your method.

same here. No improvement. Do we really need to do the reset? Because I did not do that and its giving around 45min video playback...

My tab was rooted.
I tried the method in which I included the reset button press
and the tab went in a reboot loop.
took a lot of time to flash again using g+ massproduction
there was some error at step 13.
Finally the tab is back and unrooted.
Battery looks the same though. 45 min to 1 hr with wifi.

jaydeepkhalpada said:
My tab was rooted.
I tried the method in which I included the reset button press
and the tab went in a reboot loop.
took a lot of time to flash again using g+ massproduction
there was some error at step 13.
Finally the tab is back and unrooted.
Battery looks the same though. 45 min to 1 hr with wifi.
Click to expand...
Click to collapse
Same here... battery ain't getting any further after 45min. Video playback on an average 38min. Damn you Zync!
Sector must be getting his backup from the additional battery.

Agree. He must be getting the back up because of extra battery. In that case, Zync gave a detective battery to all tablets?
That too it lasts exactly 45 min to 1 hr for each of us?
Wat is wrong? The reason I had selected Zync over bsnl penta was battery capacity.

jaydeepkhalpada said:
Agree. He must be getting the back up because of extra battery. In that case, Zync gave a detective battery to all tablets?
That too it lasts exactly 45 min to 1 hr for each of us?
Wat is wrong? The reason I had selected Zync over bsnl penta was battery capacity.
Click to expand...
Click to collapse
The thing is that all these cheap tabs are China made. They are imported and re-branded. You can get this same Tab from some company called "DOMO" and a few others too. They know nothing about the tab, other than sell it. Zync promised a lot, only a few of them were kept. I think, additional battery is our only choice left.

Opening the battery and replacing it means our warranty is void. I don't have any trust on this tab and I don't want to open it till at least the warranty period.

My battery discharges when it is connected with charger. What to do? Seriously disappointed. I don't want to call customer care of zync because they are good for nothing.

jaydeepkhalpada said:
My tab was rooted.
I tried the method in which I included the reset button press
and the tab went in a reboot loop.
took a lot of time to flash again using g+ massproduction
there was some error at step 13.
Finally the tab is back and unrooted.
Battery looks the same though. 45 min to 1 hr with wifi.
Click to expand...
Click to collapse
after rooting i was also facing the same prob. ,I've fixed it...
for rooting without prob. go here http://forum.xda-developers.com/showthread.php?t=2129888

i can't say about the extra backup from extra battery...
bcoz the extra battery is only 1300mAH 3.7V china mobile battery ....
but there is huge diffrence in backup in my tab . . . .
i've seen one full movie (battleship of 2.02hrs movie) & 1.30 hrs of gaming on the tab without connecting charger...

Here some tips to save battery. . .
1)Use only MX-PLAYER
bcoz this player uses dedicated HW decoder
2)use SETcpu app to control cpu freq.
-set cpu freq to low level during video playback .. i.e 216MHz
3)648Mhz freq. is enough for normal operations, but for gaming set it to highest.

Sector1369 said:
i can't say about the extra backup from extra battery...
bcoz the extra battery is only 1300mAH 3.7V china mobile battery ....
but there is huge diffrence in backup in my tab . . . .
i've seen one full movie (battleship of 2.02hrs movie) & 1.30 hrs of gaming on the tab without connecting charger...
Click to expand...
Click to collapse
Could you share the site from where you bought the battery?

win32.tr0jan said:
Could you share the site from where you bought the battery?
Click to expand...
Click to collapse
i didnt buy it...
i already have dead china Korby mobile which have extra battery in the lather pouch so i removed battery from the lather pouch..
the battery is slim enough to fit in...

I think my charging socket is damaged. I am in no mood to send it back to service station.

jaydeepkhalpada said:
I think my charging socket is damaged. I am in no mood to send it back to service station.
Click to expand...
Click to collapse
They won't take it for service. I quit after trying mailing and calling them.

win32.tr0jan we have to find a method to install realtek drivers. This battery problem is very annoying.

jaydeepkhalpada said:
win32.tr0jan we have to find a method to install realtek drivers. This battery problem is very annoying.
Click to expand...
Click to collapse
Dude I did find the RealTek driver. But the problem is that it is uncompiled and we need to compile it and insert into a custom ROM and install it. No other way ...

Sector1369 said:
We all know that zync z930 have very poor battery backup,
it discharges in about 45min to 1hr. . this is very disappointing .
i have observed that the battery is also 3200mAH and motherboard is not power saving.
but the main problem is battery is not acually charges fully. there is problem is battery calibration and it can't be solved by any battery calibration app.
So for now i have a solution to charge your battery fully.
1)disconnect all chrger,USB cables from TAB
2)Turn off your tablet , press reset once.(if needed)
3)now Press power button ONCE, & then press and hold volume UP button.
Now you will see Recovery menu.
4)now connect your charger, then select power off option from recovery menu.
use Vol. up down keys & power button to select.
5)Wait until battery get charged fully , when RED light turns off remove charger and turn on ur tab.
Feel the difference of backup.
ENJOY
To get more backup i have connected extra battery of 1300mAH parallel with original one.
i have found it on china mobile. Now m getting 4-4.30 hrs continues backup
See below Pic
Click to expand...
Click to collapse
Bro, you simply connected a 1300mAh battery in parallel with the 3200mAh? Without considering the current limiting circuits, mAh capacity and all that can possibly result in an explosion? Your tab is working fine in this setup?

[Q] P930 wont charge even after replacement port

I have an LG Nitro and for some reason it stopped charging. The notification icon shows it as charging but the battery continues to go down. I tried buying another battery as I thought maybe the battery was going out but this was not the issue. So next, I ordered a charging port and attached (soldered) it to the device, this also did not resolve the issue. I am kind of at a loss at what to do as the phone is in perfect condition but will not take a charge. The Nitro is rooted with TWRP recovery and CM 10.1 installed on the device.
I now have a Nexus 4 but was planning on giving the Nitro to my cousin but then this started happening right before my Nexus arrived.
Does anyone have any idea what is going on? All of the symptoms point to either a bad battery or charging port but this is obviously not the case.
Thanks

Also, if I plug the device in and hit the key, it shows the battery icon going up and down but it does not charge.

Come on, I know one of you has an idea as to what is happening

A few thoughts...
1. Are you using the official LG AC Adapter? If not, are you using an AC Adapter that's outputting AT LEAST 500mA? For me, in the car using GPS, even with a car adapter that outputs 1.0A, it can't keep up with charging the battery. It shows that it's charging, but the capacity continues to go down...
2. Are you using any kind of CPU under/over clocker? Like SetCPU? Check the settings and make sure you're not using some crazy profile, or better yet just uninstall it and test to see if things get better.
3. How about the USB Cable? Have you tried other cables to make sure you're not using a bad cable?
4. Double-check your solder work. Are you're connections clean, no globs or solder points covering more than a single pin? Connections are solid, nothing loose or gaps?
Good luck!

Namuna said:
A few thoughts...
1. Are you using the official LG AC Adapter? If not, are you using an AC Adapter that's outputting AT LEAST 500mA? For me, in the car using GPS, even with a car adapter that outputs 1.0A, it can't keep up with charging the battery. It shows that it's charging, but the capacity continues to go down...
2. Are you using any kind of CPU under/over clocker? Like SetCPU? Check the settings and make sure you're not using some crazy profile, or better yet just uninstall it and test to see if things get better.
3. How about the USB Cable? Have you tried other cables to make sure you're not using a bad cable?
4. Double-check your solder work. Are you're connections clean, no globs or solder points covering more than a single pin? Connections are solid, nothing loose or gaps?
Good luck!
Click to expand...
Click to collapse
Thanks for your suggestions. I will look into your idea.
Thanks

I do not think I have the charger that came with the p930 as it got stolen but I do have the charger from my Nexus 4. Do you think it will work? The N4 charger has 1200 milliamp output or should I order an OEM charger.

I think I used the charger from my HP Touchpad which is 2000mA but it didnt work. I may be mistaken.....
I will look into getting an OEM charger.

Might be charging...
Ok I made some progress finally!! I have a 700mA charger plugged in and now the LG logo comes on and then blinks off. :good:
Hopefully the battery is charging and by morning it will be working.
Wish me luck!!! :highfive:

Still blinking on and off. Any ideas?

comhack said:
Still blinking on and off. Any ideas?
Click to expand...
Click to collapse
I can get into download mode and would be able to get in to the twrp but I do not have a backup and my sdcard got corrupted.
What are my options now?
Thanks

The 1.2A from the Nexus4 is great. That should do nicely.
1. Are you ABSOLUTELY sure this adapter from the Nexus4 is working properly (have you verified that it's working fine with your Nexus4)? If so, then plug it into the Nitro.
2. If the Nitro is powered off, then when you first connect a power source, you should see the 'LG' logo come on for a second then go back off. After a minute you can short-press the power button and you 'should' see an animated battery icon that looks like it's filling up. The battery charging icon looks like this (lower quality image on the phone):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
3. Let the phone charge for an hour. Now, press and hold the power button until you see the 'LG' logo, let go of the power button. The phone 'should' start powering on.
When you say 'Still blinking on and off', what is? If it's the soft-touch buttons on the bottom, that's an indicator that the battery is low...So, indeed the issue continues.

Namuna said:
The 1.2A from the Nexus4 is great. That should do nicely.
When you say 'Still blinking on and off', what is? If it's the soft-touch buttons on the bottom, that's an indicator that the battery is low...So, indeed the issue continues.
Click to expand...
Click to collapse
I mean the phone turns on, I see the LG logo and then it turns off. Then it turns back on and I see the LG logo and it turns off again. Make sense ?
I can get into Download mode just fine and would be able to get into TWRP but my sdcard crapped out.

I know about charging the device with the phone off (seeing the charging dialog) but the phone keeps turning off and back on blinking the LG logo.

If I still had TWRP on my sdcard, I could of went to the Factory Reset screen and went into TWRP and let it charge from there and then wipe it and install cm 10.1 again.
Is there anyway to load the recovery.img to the sdcard without being able to boot the phone? I am pretty sure I cannot use adb in Download mode so I am kind of stuck and I do not want to flash to stock if I can help it but I will if I have to.

I think its a hardware problem and your phone need to be repaired
I had a sony ericson p990 and had the same problem you said
The repairman told me he has exchanged some of transistors
Sent from my LG-P930 using Tapatalk 2

I tend to agree with nss007, the constant fluctuation of the power/charging going on and off is a big red flag to hardware issues.

nss007 said:
I think its a hardware problem and your phone need to be repaired
I had a sony ericson p990 and had the same problem you said
The repairman told me he has exchanged some of transistors
Sent from my LG-P930 using Tapatalk 2
Click to expand...
Click to collapse
Well I actually took it to a cellphone repair company (only one in the area) and they had it for about a week and could not get it to charge. They also changed out the charging port and looked the board over. Of course, they were obviously not using the right charger as they could not even get the LG logo to come up. I am hoping that it is a software issue as the company could not find a single thing wrong with the phone or board. Of course, they mainly fix hardware (broken screens, charging ports, etc.) so I dunno how much experience they have with software.

comhack said:
Well I actually took it to a cellphone repair company (only one in the area) and they had it for about a week and could not get it to charge. They also changed out the charging port and looked the board over. Of course, they were obviously not using the right charger as they could not even get the LG logo to come up. I am hoping that it is a software issue as the company could not find a single thing wrong with the phone or board. Of course, they mainly fix hardware (broken screens, charging ports, etc.) so I dunno how much experience they have with software.
Click to expand...
Click to collapse
A few months back, my Nitro fell off my table while the charger was attached. Ever since then, it is doing what you say; showing a charging icon but it actually isn't charging.
Just a few suggestions that I've learned over time dealing with this problem... When you are plugging it in, be sure it is setting where you intend for it to sit. Basically, don't plug it in THEN set it down. I've noticed that ANY movement whatsoever will knock the phone off charge but still show the charging animation/icon. This problem is completely independent of the state of the phone; i.e. what ROM I'm booted in to, whether or not I'm in recovery, and even with the device powered off.
How to tell if you are actually charging; open your settings and go to the battery settings. Where it normally says "Discharging" will change to "Charging (USB)" or "Charging (AC)" if you are actually charging. Even with the charger attached, any movement of the phone will almost instantly throw it into "Discharging" while still showing the animation/icon.
Hope any of this helps.

Models affected by the bootloop ?

Hello
I just received a lg g4 h815, s/n 510.
I've heard that the more recent models are, the less chance you have to get the bootloop problem, what is true ? Is the model of november 2015 risky ?
One more thing, I noticed that there was a problem of electrical connection while charging the phone. I can't even move or touch it, otherwise it stops charging (when on)
When it is off and charging, instead of diplaying the percent of battery then turning of again, it turns on, whereas I know that it is not supposed to do that. Could it be problematical ?
I don't have any reference for it, but I felt it was charging quite slowly, after 3 hours it had only charger +50% (but as I sais it had turned on a few times, so it may have consume some battery)
Thanks in advance for your help

Guil23 said:
Hello
I just received a lg g4 h815, s/n 510.
I've heard that the more recent models are, the more chance you have to get the bootloop problem, what is true ? Is the model of november 2015 risky ?
One more thing, I noticed that there was a problem of electrical connection while charging the phone. I can't even move or touch it, otherwise it stops charging (when on)
When it is off and charging, instead of diplaying the percent of battery then turning of again, it turns on, whereas I know that it is not supposed to do that. Could it be problematical ?
I don't have any reference for it, but I felt it was charging quite slowly, after 3 hours it had only charger +50% (but as I sais it had turned on a few times, so it may have consume some battery)
Thanks in advance for your help
Click to expand...
Click to collapse
It's the opposite - the more recent the models are the less chance you have that it will bootloop (at least for the next several months ). Model with 603, 604 and onwards are more safe for now whilst 510 is quite risky so I would suggest either backing it up daily or have it replaced if you can and get the one with the newer motherboard.
Regarding the charging issue are you using the original charging cable that was provided? If not then your cable might be loose and also that's why it charges slowly.
Regarding the inability to have the phone turned off while charging this is LG feature and unfortunately you can't have the phone turned off while charging as it will always boot into OS and there is no way of changing it. So even if the phone is turned off when you plug in to charge it will turn on in a minute or so.

gedas5 said:
It's the opposite - the more recent the models are the less chance you have that it will bootloop (at least for the next several months ). Model with 603, 604 and onwards are more safe for now whilst 510 is quite risky so I would suggest either backing it up daily or have it replaced if you can and get the one with the newer motherboard.
Regarding the charging issue are you using the original charging cable that was provided? If not then your cable might be loose and also that's why it charges slowly.
Regarding the inability to have the phone turned off while charging this is LG feature and unfortunately you can't have the phone turned off while charging as it will always boot into OS and there is no way of changing it. So even if the phone is turned off when you plug in to charge it will turn on in a minute or so.
Click to expand...
Click to collapse
The phone will in fact charge without turning on. At least mine will.
Speaking in regards to the bootloop. Mine is a 510 that I bought new in February and it has started to randomly reboot about twice a day. I have heard from others on here as well as on Reddit that it is headed towards the bootloop. I have all my pictures and videos backed up to Google Photos. Everything else is saved in the cloud via my Gmail accounts.
As for the charging. It's possible you might have some lint or dust built up inside the charging port. You can take some tape and wrap it inside out and fold it into to small piece to where it will fit into the port. You may be surprised what you pull out of there. I often check my headphone jack as well for built up lint.
Sent from my VS986 using Tapatalk

Juice3250 said:
The phone will in fact charge without turning on. At least mine will.
Speaking in regards to the bootloop. Mine is a 510 that I bought new in February and it has started to randomly reboot about twice a day. I have heard from others on here as well as on Reddit that it is headed towards the bootloop. I have all my pictures and videos backed up to Google Photos. Everything else is saved in the cloud via my Gmail accounts.
As for the charging. It's possible you might have some lint or dust built up inside the charging port. You can take some tape and wrap it inside out and fold it into to small piece to where it will fit into the port. You may be surprised what you pull out of there. I often check my headphone jack as well for built up lint.
Sent from my VS986 using Tapatalk
Click to expand...
Click to collapse
(about offline charging) Actually you can charge it offline but if u discharged battery completely(it shows 0% screen) or it turned off because of low battery it will automaticaly turn on after reaching 5% of battery, you can charge it offline, just turn phone off after it turns on. You can't disable this feature(at least on H815) but there's some kind of workaround

(not 100% confirmed) LG G4s with SN6xx can bootloop either
http://www.reddit.com/r/lgg4/comments/58n848/_/
Wysłane z mojego LG-H815 przy użyciu Tapatalka

Minto107 said:
(not 100% confirmed) LG G4s with SN6xx can bootloop either
http://www.reddit.com/r/lgg4/comments/58n848/_/
Wysłane z mojego LG-H815 przy użyciu Tapatalka
Click to expand...
Click to collapse
i heard at least 1 604 and 3-4 603 like and like 10 601.

I have read about some phones with serials with 60x, however, most are like the one in the link, they either dont give detailed info, they have some kind of their own fault or they flat out lie. 60x series dont have chronic problems yet. Maybe it will change soon, but the posts about them are not reliable.

lycantrophic said:
I have read about some phones with serials with 60x, however, most are like the one in the link, they either dont give detailed info, they have some kind of their own fault or they flat out lie. 60x series dont have chronic problems yet. Maybe it will change soon, but the posts about them are not reliable.
Click to expand...
Click to collapse
Totally agree.

The reports with bootloop problems on 6xx SNs are very few and most of them are not credible. I refuse to believe LG has let unsoldered motherboards for so long. It's not in their interest to do so. Mine is a 602 have no issues. At least for now it seems the 6xx are safe. Time will tell.

I've a 509 up n running from 13 months, I've searched a lot and seen very few bootloops reports for 509. Best phone ever for me. Never a problem but just in case there's a 24 months warranty here in Europe, so far I'm enjoying it a lot.

gedas5 said:
It's the opposite - the more recent the models are the less chance you have that it will bootloop
Regarding the charging issue are you using the original charging cable that was provided? If not then your cable might be loose and also that's why it charges slowly.%
Regarding the inability to have the phone turned off while charging this is LG feature and unfortunately you can't have the phone turned off while charging as it will always boot into OS and there is no way of changing it. So even if the phone is turned off when you plug in to charge it will turn on in a minute or so.
Click to expand...
Click to collapse
Ooops yes I knew but I wrote wrong
I had received aH810 before, and I 've noticed that it didn't turn on but only showed the percent of battery without turning on.
I'm using the charger that was provided in the box, a white one.
I let it charge last night, it was at 9% and I thought it was going to be at 100%
This morning it was at 19%, and after 10-20 minutes of use it was back at 8% (!?)
Now it has been charging for more than 30 minutes and it is only at 9%
With the app Ampere, it shows 4000 and more mA then drops to 50mA. Last time I tryied it even went to 10 mA. The phone is in plane mode, no wifi, no background app (or if there are I can't see them)
So it charges very slooowlyyy and it discharges very quickly ? (I think 10% lost in 15 minutes of game is too much isn't it ?)
Juice3250 said:
The phone will in fact charge without turning on. At least mine will.
As for the charging. It's possible you might have some lint or dust built up inside the charging port. You can take some tape and wrap it inside out and fold it into to small piece to where it will fit into the port. You may be surprised what you pull out of there. I often check my headphone jack as well for built up lint.
Click to expand...
Click to collapse
As I said the H810 did, but not the H815. I don't know it is normal or a problem
The charger is brand new.. I don't think there could be anythinh in it...
I'm actually really really disapointed, when I used it yesterday I've found it awesome, but if I need 3 days to charge it ..... :'( (8 hours -> 10% : 100% -> 80 hours)

Guil23 said:
Ooops yes I knew but I wrote wrong
I had received aH810 before, and I 've noticed that it didn't turn on but only showed the percent of battery without turning on.
I'm using the charger that was provided in the box, a white one.
I let it charge last night, it was at 9% and I thought it was going to be at 100%
This morning it was at 19%, and after 10-20 minutes of use it was back at 8% (!?)
Now it has been charging for more than 30 minutes and it is only at 9%
With the app Ampere, it shows 4000 and more mA then drops to 50mA. Last time I tryied it even went to 10 mA. The phone is in plane mode, no wifi, no background app (or if there are I can't see them)
So it charges very slooowlyyy and it discharges very quickly ? (I think 10% lost in 15 minutes of game is too much isn't it ?)
As I said the H810 did, but not the H815. I don't know it is normal or a problem
The charger is brand new.. I don't think there could be anythinh in it...
I'm actually really really disapointed, when I used it yesterday I've found it awesome, but if I need 3 days to charge it ..... :'( (8 hours -> 10% : 100% -> 80 hours)
Click to expand...
Click to collapse
Do you want to try any other chargers if you have at home? Also have you considered doing factory reset and see if that resolves the problem? If you are going to do factory reset do backup everything you can.

gedas5 said:
Do you want to try any other chargers if you have at home? Also have you considered doing factory reset and see if that resolves the problem? If you are going to do factory reset do backup everything you can.
Click to expand...
Click to collapse
I don't have other LG wires/cables, but maybe I'll find a usb wall plug somewhere.. I just did the configuration yesterday, I don't think that doing it today will change anything ?
Anyway, I need 30% to do a factory reset so I might be able to do it this evening or tomorrow
Now it is at 11%, it has been charging for 1h45
Edit :
It still doesn't charging. I tryied with a different wall charger, and tryied by connecting the USB cable to my PC, still not working. So what is it left ?
-problem with the cable ?
-problem with the battery ?
-problem with the software ?
Is it worth if I buy a new battery in order to see if it works ?

Riardon said:
The reports with bootloop problems on 6xx SNs are very few and most of them are not credible. I refuse to believe LG has let unsoldered motherboards for so long. It's not in their interest to do so. Mine is a 602 have no issues. At least for now it seems the 6xx are safe. Time will tell.
Click to expand...
Click to collapse
Hey how do i find this out if i am a 6xxx model

stevegtrlmk said:
Hey how do i find this out if i am a 6xxx model
Click to expand...
Click to collapse
Remove the backplate and battery. Underneath the battery is a tag with the SKU, IMEI and Serial Number. The the first three S/N numbers are what you want.
{
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"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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}
The first number indicates the year it was manufactured- 5xx numbers are 2015 models, 6xx are 2016 and 7xx are 2017. The second and third numbers are the month they were manufactured, ranging from 01 (January) to 12 (December). My original G4 was a 510 model (October 2015), and the replacement they sent me after it bootlooped is a 701 (January 2017).
Note that this topic is quite old and i'm not comfortable assuming 6xx models are safe. Defective devices can take a long time to bootloop. Some do it in months, others take years. It was initially believed that 510 models and later were safe, but that turned out not to be true. My 510 failed after a year and a half. Then it was believed 6xx models fixed the problem. But there are also now a few reports of 6xx models bootlooping as well, especially on the G4 subreddit. Whether or not this will become commonplace, I don't know.
You probably won't see as many reports of failure on 6xx or 7xx models anyway. Simply because many people have moved on to other devices by now.

Also it's on the box
Sent from my LG-H815 using Tapatalk