Device charges really slowly - 0.1A - 0.4A - Samsung Galaxy A70 Questions & Answers

Hi everyone!
I'm investigating charging issue with A70 Europe version.
Bought used one with stock ROM, then unlocked and installed crDroid based on android 10.
Additional modules: Magisk, EdXposed, FakeGapps, MicroG
Apparently after ~1-2 years it started charging really slowly.
(Used orignal adapter and cable) So I thought it was broken and changed it.
It didn't help
I recently moved to LineageOS 20 straight from crDroid.
Issue persisted and I was annoyed with it so much that I checked charging parameters with Wattz app from f-droid.
With different cables and adapters I'm able to achieve Max 0.4 A with 2A charger.
Where in most cases it is 0.1A with 1.5A charger
I got it to the cell phone repair where I said I suspect that it may be the port as it stopped transferring any data.
They fixed port but charging issue persisted.
In that moment I decided to try fix it myself.
I opened the phone and changed battery as it was also discharging fast.
It didn't help.
I started reading some similar threads here.
So what is left:
- change the tape that connects main board with port (it is said to be a common issue on samsung device)
- reflash stock rom and see what happens there.
what do you think?
do you need any pictures of the phone or other details?
Thanks in advance!

UPDATE:
Device is A705FN
Did both.
Changed ribbon cable that connects main board with port and flashed stock ROM based on android 11.
Disabled adaptive charging in settings.
But it didn't help.
This could mean that it is some other hardware issue but I'm run out of ideas...
Other observation:
Measuring Watts:
(Stock charger) When I power on the phone, drain is ~10W till it enters offline charging mode or system is on, then it stays exactly 0.5W ! I'm not sure if it is charging. When system is powered it says no.
To compare with my msm8998 based Sony Xperia ~10W till it enters offline charging mode, then it stays at something like 4.6W with 1.5A charger.
Both tested while charging above 90%
I'm totally pissed of. I put money to repair it but nothing seems to work.
I'm sure about one thing - I'll never ever buy any other samsung smartphone.

This sounds like a charging board issue from the very beginning. Charging problems do happen on this phone sometimes but usually just reseating the ribbon cable is enough to make it work again. Perhaps some chip has failed, though this happens much more rarely.

Related

What would cause battery to stop charging.

Last night my phone stopped charging after flashing a theme. I have milestone 5 rom and fransico #166. I tried #163-165. I also did a full wipe and reloaded everything but the theme.
If I turn off the phone and charge the charge screen comes on then goes off and comes back on. It did end up charging from 15%-83% over night with the phone off. If I turn the phone on it will not charge. Under battery in settings it says not charging. What could be causing this???
Sent from my Galaxy Nexus using XDA
How about trying a quick search on this forum? At least 20 threads with this EXACT issue. See http://forum.xda-developers.com/showthread.php?t=1427539 and http://code.google.com/p/android/issues/detail?id=23789
Bottom line: You need to replace your usb charging port.
Melhouse said:
How about trying a quick search on this forum? At least 20 threads with this EXACT issue. See http://forum.xda-developers.com/showthread.php?t=1427539 and http://code.google.com/p/android/issues/detail?id=23789
Bottom line: You need to replace your usb charging port.
Click to expand...
Click to collapse
Why would it work when I nandroid back to stock rooted? Did that and it charged. Put back my same set up and it charged. And now its not charging
Sent from my Galaxy Nexus using XDA
I think it was just coincidental that it worked on stock. Try flash stock again and see. I'm certain that this is a hardware issue.
Melhouse -
I had a similar experience with my GNEX last night and would agree with swaser that this appears to be more of a software than hardware issue. Here's how I came to that conclusion:
1.) Plug into wall when device has been running all day - no charging indicator
2.) Power off device and plug into wall - charging indicator comes up
3.) Restart device - charging indicator stays on briefly. I noticed after checking some settings in Beautiful Widgets and Alarm Clock Plus that the charging indicator went off again.
4.) Power off device and plug into wall - charging indicator comes up
5.) Restart device and leave at lock screen overnight - charging indicator stays on and phone charges fully.
It acts like something is interfering with the device accepting the charge as the same cable and jack works without issue when the device is powered off. Admittedly, I don't know enough about the internal connections to come to any conclusions about how software would interfere with the device going into a charging mode.
BTW: my GNEX is currently bone stock, running 4.0.4, Build IMM76D.L700FD02.
My take is that this is a hardware issue because the USB port clearly does not function as it was originally and changing the USB port fixed the issue. This has happened to me twice.
Of course, as with many hardware issues, you can make software fixes for it. It seems like there is a faulty "sensor" in the port that senses the cable, and that this sensor is not used when the phone is off. The charging circuit should be able to detect a charge based voltage alone, so a potential software fix would be to do this instead of relying on the faulty sensor.
Samsung will of course not do this, because they just claim water damage on the port and you need to pay the new USB port yourself.
Melhouse said:
My take is that this is a hardware issue because the USB port clearly does not function as it was originally and changing the USB port fixed the issue. This has happened to me twice.
Of course, as with many hardware issues, you can make software fixes for it. It seems like there is a faulty "sensor" in the port that senses the cable, and that this sensor is not used when the phone is off. The charging circuit should be able to detect a charge based voltage alone, so a potential software fix would be to do this instead of relying on the faulty sensor.
Samsung will of course not do this, because they just claim water damage on the port and you need to pay the new USB port yourself.
Click to expand...
Click to collapse
Could you give us a heads up if you find a software fix?
Sent from my Galaxy Nexus using XDA

Fast Charging No Longer Working

I wanted to share this in case anyone ever experiences the same problem. I had my Note 4 since it was released in October and didn't have any issues until roughly a week ago. All of a sudden, the phone would not fast charge. Whenever connected to the fast charging adapter, it would detect it and charge, but it would not give the fast charge notification and would charge extremely slowly (8 hours to get a full charge from near empty). In addition, my PCs would no longer be able to access it and the phone would not give the MTP option menu when connected. I tried multiple cables, outlets, fast chargers, and batteries in addition to toggling the fast charge setting, wiping the cache, and performing a factory reset - but nothing helped. I finally called verizon and they sent me a new note 4 and everything was working again.....
Three days passed and the same exact issue occurred again on the replacement phone. This makes me believe that the Samsung charger I have has somehow deteriorated and is now breaking the usb connectivity on the phone. I contacted samsung and am getting a replacement for the charger and will have to get ANOTHER replacement phone from verizon (after they finish processing my first replacement).
So if anyone has a similar issue, I would suggest getting a new charger in addition to the phone replacement so you don't have to go through the entire process again. I could be wrong that the charger caused this, but I can't think of anything else besides the recent lollipop upgrade - but everything was working for several days on lollipop for both phones.
If anyone has ideas on how to fix this, please let me know. I can't return the second phone until the first one is processed so no fast charging or PC connection until then. Thanks
Having exactly the same issues. Let me know if you work it out.
maliciousintent said:
Having exactly the same issues. Let me know if you work it out.
Click to expand...
Click to collapse
Same Issues and I have three fast chargers so it is not the charger it is the phone or the 5.0 update.
Mine was not really even charging unless I turned the phone off. I called Verizon and they are sending me a replacement phone overnight. It would not connect to the computer either. I hope this is not a result of fast charging, if so they are gonna get a lot of phone calls
I also have another fast charger which wasn't working... I was thinking that my main charger was breaking the phones USB connectivity and fast charging, but if others are having the same problem then I am wondering if it is something related to the lollipop update. I am replacing the main charger and should have another replacement note 4 come Friday. If it happens again, then I think it points to the lollipop update since both phones had this issues days after lollipop was installed.
I'll let you guys know the outcome
Had the same issue. Used a different wire. Solved the problem. Any Micro USB that can transfer data, can use fast charge. If it's a "power only" cable, or if the data pins/wires are messed up, no fast charge.
graydiggy said:
Had the same issue. Used a different wire. Solved the problem. Any Micro USB that can transfer data, can use fast charge. If it's a "power only" cable, or if the data pins/wires are messed up, no fast charge.
Click to expand...
Click to collapse
Well the problem was that all the cables were working and then stopped. When I got the replacement phone they worked and then a few days later the same thing happened again. So something was causing the connection to break completely. I am hoping that the cause was the charger which I am replacing.
Word of advice: if it stops charging normally In ANY way. THROW AWAY THE CHARGER. I made the same mistake and my Note 4 literally lit on fire melting the lower 1/2 inch of my phone and completely melting the charger. It was so hot by the time I was able to yank the cord out both the phone and charger were melted and destroyed and I ended up with three fingers with minor burns. I am lucky it did not happen when I was sleeping with my infant nearby. I now charge my phone only in the day and on a granite counter in case of fire again.
It stopped fast charging. Then I used the charger again and got a message saying "Transferring power to high powered device" then wham 2" flames
Verizon kept claiming it couldnt happen and thought I used a aftermarket charger until I brought the phone and charger to a corporate store and they prompytly replaced both the phone and charger under factory warranty.
I have three samsung original fast chargers and none of them worked plus the fact that the phone could not be connected to any computer I have makes me think it was the phone. I got the new phone today so I guess time will tell. I just can't see three chargers and cables going bad all at the same time. I also did not take the 5.0 update on the new phone.
my replacement phone stopped fast charging and computer will not recognize it now. I used a different cable that was plugged into the fast charge module from Samsung. I guess that is what caused it. They are sending another phone but for C sake if a cable is the reason this happens surely there should be a fix without replacing the phone time after time.
I finally received the new phone from Verizon and I replaced all the cables I was using to make sure this doesn't happen again. Hopefully the charger was the culprit and the problem is over and done with. Hope no one else encounters this as it really was a pain to deal with.
I got my third phone Monday and so far so good. I had a car charger from Verizon plugged into an extender that had 4 plugs in it. When I unplugged my GPS from it I noticed it was very hot. The Verizon Charger was also hot even though nothing was plugged into it. This may have been what caused my issue. It could have overheated. I replaced it with a different brand and tested to make sure it stayed cool when anything was plugged in and have used it all week without issues. The only other thing could have been the USB cable I used the evening before the second phone stopped fast charging so I do not use it either. So if you use a car charger extender check to see if it gets hot when anything is plugged in. BUT, it is scary knowing something like this can kill the USB on this phone.
I have an external Hard-drive that would constantly disconnect and reconnect with the slightest movement of the cord connected to the computer. It even caused my H/D to get corrupted twice requiring re-formatting. But all I had to do to fix it was to squeeze the big connector on the cord a little and tighten it up. Just a thought.
It's been a week since I received my third phone and everything is working perfectly. I can only assume the charger was breaking it and I'm glad the issue is behind me.
So for anyone experiencing this, I suggest contacting Samsung to replace the charger before going to your cell provider to replace the phone
I'm having the same exact problem. My 2nd replacement phone is now doing the same thing as the first one. I have too many scenarios now though and I'm confused as to which it is. I have two Adaptive chargers.. Batteries, phone, or chargers...
As soon as I replaced the charger, I didn't have this issue again. I suggest sending your chargers back to Samsung (or whatever other brand you have) because one of them is breaking the phones
Sent from my Nexus 6 using Tapatalk
I would place my bet on a bad cable. With the higher voltages that fast charge uses going through the danger of arching and sparking is increased especially if there's a poor connection would fry or weld melt metal inside the connector. This could damage the USB port in the phone and cause the phone's USB port to have a bad connection. This bad USB port in the phone could fry the other cables as well leaving you wondering why everything went bad all at once
My phone will fast charge on my two vehicle chargers (at 1.5 amps and 2.1 amps), but refuses to change any faster than 500 mA on two separate fast charger bricks. The same bricks work fine for fast charging other phones, so it's my phone, not the charging hardware. I'm using the same cable(s) for all instances, which leads me to believe that something is wrong with how the phone interprets the "smart charging" signal on the bricks, or that the phone is sending the wrong charging signal.
I can still connect to a computer just fine, so my issue may be different.
Does anyone else have the issue with bricks but not with chargers without "smart charging" capabilities?
I've had this problem on stock 5.1.1, Jasmine rom 6.0.1, and now CM13. I full wiped everything when reinstalling, so either it's hardware, or an issue propigated through many roms. I've tried a few different kernels too, just to see if that was the problem.
I'm changing the battery tomorrow to check that possibility. Maybe I'll bend the contact a slight bit and see what happens (phone catches on fire)...
Hi guys
I have the same problem as you ,so what I have to do to solve this issue without replace the phone,
I have rooted 5.1.1 stock rom, If i flash full stock rom 5.1.1 does this help or what?
zediiiii said:
My phone will fast charge on my two vehicle chargers (at 1.5 amps and 2.1 amps), but refuses to change any faster than 500 mA on two separate fast charger bricks. The same bricks work fine for fast charging other phones, so it's my phone, not the charging hardware. I'm using the same cable(s) for all instances, which leads me to believe that something is wrong with how the phone interprets the "smart charging" signal on the bricks, or that the phone is sending the wrong charging signal.
I can still connect to a computer just fine, so my issue may be different.
Does anyone else have the issue with bricks but not with chargers without "smart charging" capabilities?
I've had this problem on stock 5.1.1, Jasmine rom 6.0.1, and now CM13. I full wiped everything when reinstalling, so either it's hardware, or an issue propigated through many roms. I've tried a few different kernels too, just to see if that was the problem.
I'm changing the battery tomorrow to check that possibility. Maybe I'll bend the contact a slight bit and see what happens (phone catches on fire)...
Click to expand...
Click to collapse
Turns out one out of the three new cables I bought didn't work, and my OEM cable didn't work for fast charging. Swapping for a good cable fixed the issue.

Please Help - Does not charge any more

Hi,
I have a Whyred and its been working until recently. I noticed the other day that it was not charging or extremely slow. Measuring from Ampere, I was getting about 250ma.
So I ordered both a new battery and charging port. I have installed both, and still the same - it does not charge properly. From Ampere I get upto 250ma but even then, half of the time its states not charging.
This is the same, even with the phone off, it does not charge, so it can't be the ROM (I am on Havoc 3.1) I will try the latest update and flash the firmware again but I am fairly sure that wont make a difference.
Would appreciate any ideas/suggestion ?
I quite sure its a hardware issue, the only thing I can think of is replacing the flex cable between the charging port and the motherboard, or even the the motherboard itself. I have disconnected the flex cable for an hour and then plugged it in, no difference.
Is my phone now, more or less dead ?

Charging issue

Hi ,
i'm facing charging issues on my s 20 plus it is only charging on the cable mode and the super fast charging mode is on and i'm using the original charger and cable. I've tried soft resetting and turining the phone on on the safe mode and still the problem is there. I started having problem after getting a moisture detected notification on my phone and it went away but the problem is still after a day. Does anyone have any fix for this problem?
Just started having exact same problem, no ideas yet?
I thought my charger was faulty, same issue with me, no chance for my s20 to get charged wirelessly, no matter fast or not. I think the last security update was buggy maybe
It's not you. I noticed that my wireless fast charging immediately broke after the last update. They all start to fast charge, then a few seconds later reverts to standard charging.
Thankfully, I can still fast and super fast charge with my USB C chargers.
I saw it on different Samsung forums, Reddit and the Samsung Members app. All reporting similar issues and the only thing they all had in common was the last update. I do believe it's software and Samsung needs to fix it. I know my chargers work fine as my work S7 still fast charges on all of them but it's on an old software version.

Wireless charging stopped working

Hello,
My S20 (SM-G980F) today refused to charge wirelessly. I own it for over a year now and induction charging always worked - until today. I tried several times with two different chargers. Both discover the presence of a phone (by blinking 3 times) but charging does not start. Phone reboot didn't help. Charging by cable works. Nothing special happened to the phone, I didn't drop it nor anything like this. I try to charge bare phone, without any case. I'm on BeyondROM 4.8 (Android 12), flashed almost a week ago, don't think it's related to wireless charging failure.
Tried Logcat reader - no entries related to battery appear when I place the phone on a wireless charger but a lot of them when start charging by cable.
From various recommendations as to how to proceed in such circumstances I didn't try factory reset but I consider this a last resort. Did anyone encounter such a problem? Any idea what could go wrong or how to solve it?
Try disabling adaptive charging, make sure the wireless charging cable is not damaged, or you can also boot your S20 to safe mode and then charge your device.

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