Develop Bugs

[Q] Battery not charging (out-of-the-box)

Hi all!
I just got my new Defy earlier today from amazon.co.uk and I've got a question regarding the phone, sorry if I've asked something that has already been answered (didn't find a answer through the search).
The defy just simply doesn't seem to charge, when I use a USB-cable from the computer nothing happens at all. So I try a USB-charger which is connected to the wall and then via a micro USB-cable to the handset. This makes the phone go into a "charging-mode" showing a big battery with a flash on it. The percentage of battery quickly rises from 0% to 60% (in about 30 sec) and then stays there. Now I've tried to charge it for ~3h but if I then start the phone and enter the pin-code and then chose my prefered language for doing the initial setup it shuts down.
The phone then starts to load and does the same procedure of jumping from 0% of battery to 60%. The green "liquid" in the battery during "charging mode" is moving which in my mind should indicate that the phone is charging, but it doesn't seem to work.
If I unplug the charger the phone dies instantly.
When I plug the charger in the phone a small white led flashes quickly and then it's black again.
Should I just let it charge for like 10+ hours and hope for the best? Or are there any other possible solutions out there?
Just to clarify, I haven't rooted it or whatever, I haven't managed to get it to start even once.
/crushez

I think you have used accessories other than Motorola. Usually this happened to me when I used apple charger converter with a motorola cable.
If that is not true, its better to return the product since amazon has a 100% cash back replacement warranty. They can also send you a brand new phone later.

Ye, the charger I am using is a Sony Ericsson micro USB charger with the motorola cable. I'm situated in sweden, so the contact (english) from motorola doesn't work here.
Could it really be that since the usb-chargers shouldn't really vary that much? I checked it and the output from the chargers (the one to the wall) are the same apart from the sony ericsson's has 0.1 less V (DC).
I guess I could try and hit the stores tomorrow and buy a socket adaptor so I could use the charger motorola intended for usage in england.

As a last alternative plug your cable to a pc and leave it for 1hr. If it charges, then phone will power up on its own. Use cable that came in box with phone.
Sent from my MB525 using XDA App

major letdown this morning.
I had the phone be charged over the night and it all looked neat this morning with the battery indicator saying a 100%. THough when I unplug the phone from the charger it shuts down and wont start again. It starts charging from 0% again if I reconnect the charger.
Now I've got two possible explanations.
Either I've received a faulty battery or I'm just plained stupid and have missed something when puting the phone together, theres some kind of plastic protection on the battery which I'm supposed to remove before inserting it?
If the latter I'll go hide somewhere, cause I can't see any atm.

You can charge the phone on USB through the computer only after you've installed the driver package from Motorola on your computer. I noticed that too.
I bought a T-mobile phone on eBay, unlocked it, and just downloaded the software package from Motorola's US website. If you can't find it, let me know and I'll dig up the link!

I've installed the motorola media link and the drivers from
http : //www .motorola. com/Support/US-EN/Support-Homepage/Software_and_Drivers/USB-and-PC-Charging-Drivers
But the phone just wont react when trying to charge it, other then a small light flash up in the left corner.
I've emailed both amazon and motorola support, awaiting further instructions from them on how to proceed before I try anything else. Of course this happens on a weekend when the support is out partying -.-
Thanks for all the help btw.
I guess I'm looking forward to a month (atleast) of sending phones back and forth.

I know this is all basic stuff you've probably already tried:
1) The correct wall charger (not sure if this is an enhanced micro usb, but some manufacturers wire them differently).
2) Pull the battery and let the phone sit a bit.
3) Using the correct usb cable to computer, experiment with different usb ports on the computer (this alone saved my wife the trouble of taking her phone back). Make sure you're plugged directly, not through a hub.
4) Does the phone actually run normally while on power (plugged in)? Not sure, but can you do a factory reset on this phone with it plugged in?
5) Have you tried charging on airplane mode?

Same happened to me.
I charge the phone about 20 hours, both by wall charger and USB, and couldn't charge it up to 100% only 70%. (motorola charger)
Nothing helped, so I returned the phone to the seller, and they gave me a new one - it's charging perfectly.

WTF? Phone stopped charging all of a sudden

Hey guys,
I've had my GN for about a week now with absolutely no problems until tonight. I went to bed with my phone plugged up into the charger thru the wall and when I woke up it was still at 73%
Tried unplugging and plugging back it but the phone won't even detect that the charger is even plugged in. So I tried plugging it up to my computer and it still won't detect anything. The charger is still in perfect condition and I tried plugging into the car charger, but it will slowly charge.
you know when you plug in your usb cord to a computer or charger....that little icon on the top left pops up with the usb icon on the top left
well..i tried plugging in my phone to charge thru the outlet but it won't detect it so i took it out and tried to plug it thru the computer..but my cpu won't detect anything either

also
You know how when you plug it up to your computer and you hear that chime indicating that your has recognized it as a media dive. Well, my computer won't even pick it up / recognize it anymore
I've rooted this phone, but I've done nothing else with the phone. I rooted it last week, but did't have problems until last nite. It was charging just fine when I went to bed, but woke up and it just stopped charging

Just an obvious question so forgive me if you've already tried this. Have you done a battery pull to fully reset things and see if that helps? If it's a h/w problem it won't have any impact and probably means an exchange is in order.

tgmorris said:
Just an obvious question so forgive me if you've already tried this. Have you done a battery pull to fully reset things and see if that helps? If it's a h/w problem it won't have any impact and probably means an exchange is in order.
Click to expand...
Click to collapse
Yeah I'm doing that right now. I completely took out the battery and put it back it back in with no luck
I've been using the extended battery. SO i took that one out and replaced it with the stock battery and still no luck
What if I already rooted teh phone?
This is my first smartphone ................. I'm so freakin nervous right now

Did you try different cables?

pedmond said:
Did you try different cables?
Click to expand...
Click to collapse
Don't have another one; Like I said, this is my first smartphone
Weird; I currently have the phone plugged into my computer....it seems to charge just fine ONLY if I have it faced DOWN
Would that mean it is a cable issue?

try pushing the cable upwards to see if it makes contact...i had a problem with my usb cable and had to change it.

lilkhmerkid4u said:
Don't have another one; Like I said, this is my first smartphone
Weird; I currently have the phone plugged into my computer....it seems to charge just fine ONLY if I have it faced DOWN
Would that mean it is a cable issue?
Click to expand...
Click to collapse
Looks like it. Better than the alternative.

lilkhmerkid4u said:
Yeah I'm doing that right now. I completely took out the battery and put it back it back in with no luck
I've been using the extended battery. SO i took that one out and replaced it with the stock battery and still no luck
What if I already rooted teh phone?
This is my first smartphone ................. I'm so freakin nervous right now
Click to expand...
Click to collapse
you can always unroot the phone if you need to send it in. I would slightly jiggle the cable when charging, maybe its a loose charge port on the device itself.

Have you had a good look inside the phone's USB plug and the USB cable plug? There might be something stuck up inside one of them. If so, you can clean it up with 99% alcohol, or contact cleaner by dabbing some on a soft toothbrush and scrubbing it out. Phone off, battery out of course.

spywhite said:
Have you had a good look inside the phone's USB plug and the USB cable plug? There might be something stuck up inside one of them. If so, you can clean it up with 99% alcohol, or contact cleaner by dabbing some on a soft toothbrush and scrubbing it out. Phone off, battery out of course.
Click to expand...
Click to collapse
This phone is plastic! I wouldn't put 99% alcohol anywhere near it!

pedmond said:
This phone is plastic! I wouldn't put 99% alcohol anywhere near it!
Click to expand...
Click to collapse
You press the tip bristles up inside the usb connector and flick downward, avoiding other areas. And the brush doesn't need to be drenched. Alcohol won't phase it unless you spill it all over the device, the alcohol quickly evaporates...considering alcohol comes in a plastic bottle.

i had this problem with my stock phone.. turned off phone and it would charge... i let it go to 100 and did battery pull and worked fine ever since
Sent from my Galaxy Nexus using Tapatalk

man, spoke to soon..... been a while since it happend , but now its happening again...
charging while phone is off seems to do the trick....
what is also wierd is that i plugged it in while the phone was off for about 5 mins and turned on the phone.... it went from 12% battery to 45%

I've just been charging it faced down. Where is the cheapest place I can buy a whole new charger?

Galaxy Nexus not charging !!

My gnex is not charging..i plug in and the battery symbol doesnt show charging..when i check battery in settings it shows not charging instead of discharging.
Another thing is that if i switch it off and plug in the white charging symbol occurs but after an hour when i switch on the battery is at the same percentage..
pls help :'(

Ive had those same issues..I went to charge it on my car charger and it instantly began working. The very next day I tried my hone charger again and it would work..Crazy thing is when the home charger wasn't working for my GNEX, it would charge my girlfriends phone just fine!!
Sent from my Galaxy Nexus using xda app-developers app

tea_dub84 said:
Ive had those same issues..I went to charge it on my car charger and it instantly began working. The very next day I tried my hone charger again and it would work..Crazy thing is when the home charger wasn't working for my GNEX, it would charge my girlfriends phone just fine!!
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
http://productforums.google.com/forum/#!topic/mobile/RahZtFg39DU[1-25]
looks like many have this issue

Same happened with my friends nexus.. Any solutions...?

vjz567 said:
Same happened with my friends nexus.. Any solutions...?
Click to expand...
Click to collapse
no idea..this issue is very annoying

There's a goddamn thread a day on this
Not kidding. One day Galaxy Nexuses will go extinct because of this!
Sent from my Galaxy Nexus using xda app-developers app

Have had a charging issue as well, and solved it.
Hey there,
my SGN was not charging at all not even when turned off, started two days ago, the first evening it was only charging on one out of my three USB cables (each cable has its own wall charger).
Also my PC with "Win 8 Pro" was not recognizing my phone at all.
My first try was a bit stupid, but it worked, well for one day only. I bite on the USB cable, so the part that goes in the phone was a bit deformed, and the SGN was charging again. \o/
Next evening, I had the same problem again, but this time, non of my three cables was able to charge, even after further deforming tries.
My final solution was to use a needle, stick it in the USB port on the phone and bend the small "tongue" a bit up, so it was exactly in the middle.
My Phone was off and the battery removed. I put all together again and plugged the USB cable back in, it started charging while off.
Then I just turned it on, after booting was almost done, my PC told me that my SGN is connected and it was still charging.
I removed the cable, plugged it back in, several times, also on all three charger with its cables, finally my problem seems to be resolved.
btw. My SGN is from November 2011, so one of the first here in Europe.
I hope this can help some other with the same problem.
Kind Regards from Germany,
Milex84

MiLeX84 said:
Hey there,
my SGN was not charging at all not even when turned off, started two days ago, the first evening it was only charging on one out of my three USB cables (each cable has its own wall charger).
Also my PC with "Win 8 Pro" was not recognizing my phone at all.
My first try was a bit stupid, but it worked, well for one day only. I bite on the USB cable, so the part that goes in the phone was a bit deformed, and the SGN was charging again. \o/
Next evening, I had the same problem again, but this time, non of my three cables was able to charge, even after further deforming tries.
My final solution was to use a needle, stick it in the USB port on the phone and bend the small "tongue" a bit up, so it was exactly in the middle.
My Phone was off and the battery removed. I put all together again and plugged the USB cable back in, it started charging while off.
Then I just turned it on, after booting was almost done, my PC told me that my SGN is connected and it was still charging.
I removed the cable, plugged it back in, several times, also on all three charger with its cables, finally my problem seems to be resolved.
btw. My SGN is from November 2011, so one of the first here in Europe.
I hope this can help some other with the same problem.
Kind Regards from Germany,
Milex84
Click to expand...
Click to collapse
could u please post a photo of what u did? I've the same problem
Thanks

MiLeX84 said:
Hey there,
My final solution was to use a needle, stick it in the USB port on the phone and bend the small "tongue" a bit up, so it was exactly in the middle.
Kind Regards from Germany,
Milex84
Click to expand...
Click to collapse
I had the same problem, GNex quit charging. Fixed it by using a toothpick to gently move the "tongue" in the USB port up towards the LED (screen side). I used a wooden toothpick as I didn't know what would happen if the connectors shorted using something metal.
Apparently, moving the USB plug around when it is in the port can move things out of alignment. Very easy fix, takes less than one minute. You could use a plastic pen cap or whatever you have lying around as a tool.
If you are under warranty, you could always ask for a replacement.

I had this problem a while back, first only some chargers would work and finally none of my chargers worked. In my case it seems like the problem was pocket lint tightly packed at the back of the usb port. The lint was grey and so tightly packed that I couldn't see any thing wrong. I used a fine tooth pick and got a good size wad out and the charging problem was solved. I always thought that the lint prevented the usb cable to be fully seated but maybe I bent the "lip" while trying to get the lint out
Sent from my Galaxy Nexus using Tapatalk 2

Well, I've left my phone on charge with the adapter charger and it was recharged. Now it seems to work also through usb

I got a new Gnex today because of this same issue. It would randomly not charge no matter what charger is was using. What's weird though is I never had an issue transferring files to my Mac and vice versa.
Sent from my Galaxy Nexus using Tapatalk 2

Jolle_1 said:
I had this problem a while back, first only some chargers would work and finally none of my chargers worked. In my case it seems like the problem was pocket lint tightly packed at the back of the usb port. The lint was grey and so tightly packed that I couldn't see any thing wrong.
Click to expand...
Click to collapse
had the same issue, was charging only on PC-USB, I used a safety pin and removed a lot of lint. Works fine now.

britoso said:
had the same issue, was charging only on PC-USB, I used a safety pin and removed a lot of lint. Works fine now.
Click to expand...
Click to collapse
Thought that was lint but in my case even removing the lint it wont charge CORRECTLY -- with the original charger (it was uncharging after some movement).
Then I realize that forcing the usb plug to go more inside the USB port it works. What I did: Removed the black protection because it block the plug to go more inside the phone port. It's now metalic (lol) but not a problem of charging anymore.

I'd buy some heat shrink tubing for that before you cause a fire .
Sent from my Galaxy Nexus using Tapatalk 2

Sometimes it happens to me when battery's charged at 98-99%. Don't know the reason, and what I can do is to remove cable, reconnect it

dbleti said:
Sometimes it happens to me when battery's charged at 98-99%. Don't know the reason, and what I can do is to remove cable, reconnect it
Click to expand...
Click to collapse
Unfortunately, all that really does is shorten the battery's life. There is no benefit to forcing it to that feel good display of 100%.
Sent from my Galaxy Nexus using Tapatalk 2

Here's my full experience with my Galaxy Nexus charging problem --
I bought this one eBay, came with 4.1.2. Didn't even test charging before I updated it to stock 4.2.2 and rooted it, so I'm not sure if the problem developed after my software update, or if it always had that problem. The eBayer said he didn't know anything about it. I'm on stock rooted 4.3 now, and the problem persists.
The phone has never charged on any of the several AC adapters I've tried. These have been between 250ma and 1A, and they wouldn't work whether the phone was on or off. It would consistently charge when connected to my desktop computer, but that all changed a few weeks ago when I changed out my computer's power supply. Now, the only one trick I've found is to turn on WiFi, BT, GPS, and put the screen at 100% brightness, then plug connect my computer's USB cable, and it will go into charging mode about 35-50% of the time. This works OK, but one extra annoying bit is that when the battery reaches 100%, it stops charging, and won't start again until I do my little trick and replug the USB.
I tried replacing the USB port, but that didn't fix anything. As far as I can tell, that's the only part that can be easily replaced by a normal person. I'm basically managing this by swapping in batteries charged by an external charger.

Got major issue all of sudden and phone won't start anymore
I have been tweaking with my phone customizing it for like one year and didn't had any problem. I flashed with KitKat gummy ROM and then reverted back to 4.3 stock jellybean using ROM manager installed previous saved 4.3 stock rooted ROM.
Further installed clean master and did some advanced cleaning of cache files. WELL after reverting back I started witnessing some major flaws with battery charging status earlier with KitKat I wasn't using any battery saver app but after reverting back to 4.3 I installed DU battery saver and it would like take ages to charge my battery like 7-8 hrs but I wasn't paying much attention to this. I did some advanced cleaning with clean master, but anyways that won't clean any system files that would hinder the functionality of phone right?Problem started cropping up as I detached my power cable without switching off the supply ( even though I had done this previously many times before) , phone flickered/froze and switched off and won't start without external power supply even though i had 57% battery charge that too showed random status, sometimes 0% and sometimes 50+ %. This went looping for sometime then like it won't switch on even with power supply, just showing for a sec the battery symbol with bolt sign when the charging cable is inserted and going blank within 5 sec . It would show the battery icon sometimes and sometimes no sign just plain blank..
Well I tried different ways as suggested like pushing the small tongue inside USB to middle or attaching to laptop w/o battery and putting back n starting but all in vain, no response.
I am not sure any major fault has cropped in the charging circuit or is the phone bricked? Battery dead?
Guys do give some suggestions.. I have been charging using diff usb cables, no response but just that battery symbol for 5sec n going blank..even though i have been charging the phone is getting heated..but does that imply anything?
do provide some insights guys
Thanks in advance!

Once it worked and now not working
MiLeX84 said:
Hey there,
my SGN was not charging at all not even when turned off, started two days ago, the first evening it was only charging on one out of my three USB cables (each cable has its own wall charger).
Also my PC with "Win 8 Pro" was not recognizing my phone at all.
My first try was a bit stupid, but it worked, well for one day only. I bite on the USB cable, so the part that goes in the phone was a bit deformed, and the SGN was charging again. \o/
Next evening, I had the same problem again, but this time, non of my three cables was able to charge, even after further deforming tries.
My final solution was to use a needle, stick it in the USB port on the phone and bend the small "tongue" a bit up, so it was exactly in the middle.
My Phone was off and the battery removed. I put all together again and plugged the USB cable back in, it started charging while off.
Then I just turned it on, after booting was almost done, my PC told me that my SGN is connected and it was still charging.
I removed the cable, plugged it back in, several times, also on all three charger with its cables, finally my problem seems to be resolved.
btw. My SGN is from November 2011, so one of the first here in Europe.
I hope this can help some other with the same problem.
Kind Regards from Germany,
Milex84
Click to expand...
Click to collapse
Thanks for the awesome solution. It worked for me before a week. I faced the same problem and now this trick is not working for me ;(. Please help me out.

Despite replacing USB power board & Sim/Microsd holder still cannot get charge

Hi guys
Just cannot seem to get the thing to charge.
Tried different charger/usb cable. Got completely new USB power board. Sometimes the battery icon comes up on the screen when i turn it on of just a battery with a bit of low red at the bottom of it. It won't turn on. Theres not even a charging beacon light on top of the phone to indicate charge.
What does this usually show? Bricked phone, bad motherboard or bad battery?
Cheers.

MartK87 said:
Hi guys
Just cannot seem to get the thing to charge.
Tried different charger/usb cable. Got completely new USB power board. Sometimes the battery icon comes up on the screen when i turn it on of just a battery with a bit of low red at the bottom of it. It won't turn on. Theres not even a charging beacon light on top of the phone to indicate charge.
What does this usually show? Bricked phone, bad motherboard or bad battery?
Cheers.
Click to expand...
Click to collapse
Is the error that comes to screen
"USB not supported"?

not getting any error mate. It is totally dead.
I did buy a new battery which had 4% life left. Not enough to copy 64GB data to an SD card.
It seems it must be the main board which is damaged. I have replaced the power board and the middle ribbon cable. This has to be a mobo issue unless u can think of anything else?

MartK87 said:
not getting any error mate. It is totally dead.
I did buy a new battery which had 4% life left. Not enough to copy 64GB data to an SD card.
It seems it must be the main board which is damaged. I have replaced the power board and the middle ribbon cable. This has to be a mobo issue unless u can think of anything else?
Click to expand...
Click to collapse
I still don't think that's mobo issue. Try this before you intend to replace your mobo.
Plug in charging using any charger other than wall charger. Use a power bank or anything and when the battery icon shows up that you described in first post(the red icon) leave it there as it is and let it charge over night. Try powering up in the morning.

sbetatester said:
I still don't think that's mobo issue. Try this before you intend to replace your mobo.
Plug in charging using any charger other than wall charger. Use a power bank or anything and when the battery icon shows up that you described in first post(the red icon) leave it there as it is and let it charge over night. Try powering up in the morning.
Click to expand...
Click to collapse
I will be sure to do that and let you know once done thanks
I dont get any icon on the screen when I plug a charger in. Even the powerbank... When i plug that in I get no beacon light on the top of the phone to indicate charge and also no icon on the phone screen. The phone never gets hot when it charges and the charging device never gets hot. Stone cold both of them.
What do you reckon?

MartK87 said:
I will be sure to do that and let you know once done thanks
I dont get any icon on the screen when I plug a charger in. Even the powerbank... When i plug that in I get no beacon light on the top of the phone to indicate charge and also no icon on the phone screen. The phone never gets hot when it charges and the charging device never gets hot. Stone cold both of them.
What do you reckon?
Click to expand...
Click to collapse
I think your phone needs a doctor ?. Take him to the hospital (service center). Last resort before going to service center is take the battery out and charge it using one of those battery charger.

sbetatester said:
I think your phone needs a doctor . Take him to the hospital (service center). Last resort before going to service center is take the battery out and charge it using one of those battery charger.
Click to expand...
Click to collapse
haha yes...
The annoyance is though its not the normal kind of battery you come across...
Take a look here: https://i.ebayimg.com/images/g/ScMAAOSwVm5Y-v50/s-l300.jpg
It has a strange connector on it. one of which I have never seen before.
How do i find service centres located in Australia?
Many thanks again

MartK87 said:
haha yes...
The annoyance is though its not the normal kind of battery you come across...
Take a look here: https://i.ebayimg.com/images/g/ScMAAOSwVm5Y-v50/s-l300.jpg
It has a strange connector on it. one of which I have never seen before.?
Click to expand...
Click to collapse
Yes, its strange indeed however my battery charger is one with wires so i don't need to worry about connectors.
MartK87 said:
How do i find service centres located in Australia
Many thanks again
Click to expand...
Click to collapse
https://www.asus.com/au/support/Service-Center/Australia
I think this url might help if you haven't tried it yet. :good:

[SOLVED][Hardware Issue] Phone not charging

JUMP TO SOLUTION
Hi everyone,
My phone (almost 2 years old, changed LCD for three times) started to lose a lot of its battery capacity from a month ago, and since yesterday I realized something's wrong with it, as it had some trouble charging the battery. At first, I was using my phone and its battery was around 20%, and then as soon as I connected the charger (genuine fast charge) it turned off and the red LED indicator kept turning on and off and refused to charge. then after a reboot, it started charging again, and then I left it charging at the night and at the morning I realized it only charged to 60% and the red LED didn't turn on at all. And now that all the battery is drowned out it's not charging at all and drawing no current from the charger ([email protected]).
Has anyone had any experience with it before? Is this a battery problem or the USB charging port flex cable which has some ICs on it (example)?
I'd appreciate your answers.

I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.

Mr Hofs said:
I can't tell from your story that you tried another charger ? I recall a similar charging issue from my HTC One X a few years back.
Replaced the charger and all issues disappeared.
Click to expand...
Click to collapse
Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.

m.m.m said:
Yes I have, Also seconds before it ran out completely I tried to check if adb works. connected it to my laptop and on the bootloader mode the adb recognized the device but the red LED didn't light up.
Click to expand...
Click to collapse
That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.

Mr Hofs said:
That's correct because a device doesn't charge in bootloader mode. Only off state, running OS or Dr TWRP recovery.
If you tried a different charger it can be pretty much only down to hardware, can't give any advice at that level.
Click to expand...
Click to collapse
Oops, I meant recovery mode.
does the device charge in the stock recovery?

m.m.m said:
Oops, I meant recovery mode.
does the device charge in the stock recovery?
Click to expand...
Click to collapse
I'm afraid not, only the custom one.

I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.

So I just opened the phone and disconnect/reconnected the battery connector and it eventually started charging with the stock charger, but it charged up to 60% and then stopped. retried the same steps and no luck this time. then I tried charging the battery with an external li-ion charger (I know it's a dangerous task )
this time it charged up to 4.11 volts and then I turned on the phone and again the battery dropped to 60%. so I believe the battery is really dead and needs replacement. I'll update you when I replace it.

KingGong said:
I had almost the same problem with my phone. I sent it to a repair center and acording to their report, the circuit which is responsible for the monitoring of the charging process had a loose connection. Maybe because I dropped the phone a few times. Unfortunatly the circuits of modern phones are all on the same circuit board, so they had to change the whole motherboard of the phone. But now everything works fine.
Click to expand...
Click to collapse
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:

m.m.m said:
Turns out I was wrong, my case was similar to yours. had to waste $9 on a battery to find out
it just fixed by disconnecting/reconnecting the USB connector bottom of the board, but I don't know how the flex cable for the back button got cut so now I have to replace the whole bottom circuit ($17 approx.) :crying:
Click to expand...
Click to collapse
So I went through the hurdle of replacing my battery and charge port, and the battery transplant went well, went from 70% to 100% battery health (yay!).
The first charge port I purchased (this is all eBay stuff) had a busted Recents button (copper trace in ribbon cable was nicked - when the part was removed from original phone for sure), so I complained and got a replacement; second one works well.
And because all bad things come in threes, the phone developed an echo (on the opposite side of the conversation) which I think I caused by ripping a bit of the mic rubber isolator which points towards the mic hole in the battery cover.
I believe I fixed it (still testing) by glueing some foam padding on the backside of the mic (on the charge port PCB, facing the battery cover).
Long story short, opening up the phone is a b###h, so do multiple repairs together, be careful not to break anything else (easier said....).
Good luck, let us know how it went.

So here's an update, First of all, I'm pretty happy with the battery replacement, It can hold like 10 hours of my usage while the old one could handle up to 6-8 lately, it's unbranded, and I got it from a local phone part store.
Second, the replacement for the charger flex turned out to be pretty good quality, and I've had no problems with it so far. I got it for $11 from AliExpress, but now it's about $10.5. But when I replaced everything and tried to reassemble the phone and tighten the screws it showed up with charging problems again, and I tried disassemble/reassembling the phone and reconnecting the charger flex, and the next time it charged but with no fast charge, so in the next try I also tried cleaning the flex connector with cleaning alcohol, and for the third try it finally started charging with no problems.
So now after like 2 weeks, it's had no problems so far.