Hi all! Tried searching for an answer to this but couldn't see it. I currently own a Galaxy S8 and I normally charge it overnight via a USB cable from my laptop while it is off, as the USB still delivers power to the phone even when it is turned off. Using the same cable+laptop+port as before, this does not seem to work for the Galaxy S21 that I have recently been given - it starts the charging process but then stops after 3 seconds or so. Does anyone know why this might be the case? I have not changed any configurations within Windows/BIOS at all. The S8 still charges fine via the same cable. Is there a setting in the phone I need to change? Thanks in advance!
Try changing the USB cable to an emarked cable. It may not want to charge because the cable is missing the chip.
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I have an i777 (AT&T). I would like to root it. When you connect the micro USB cable, the phone starts to act strangely. First, you cannot charge the phone through the cable (I have to use an external charger and keep switching batteries). When you connect the cable, the phone does the following: every six seconds the black and white battery charging icon appears in the middle of the screen (the one that you see when the phone is off), and stays there for a split second. Then the screen is black until the battery icon appears again. The phone cannot be used while the cable is connected.
There are ways to send files to the phone (Kies Air) that let you work around the cable issue. But does anyone know how to fix this USB cable problem?
Thanks.
DO not charge your phone with it
Seems like your USB port is damaged and you can damage the internal parts by giving a fluctuating power supply
Hi. I have the same problem. Could you fix it? Charging and data transfer can be solved (external battery charger - airdroid) but I do not know how to root it. Is there any wireless way to root the device? Thanks
I am sure my problem is different from everyone here becuase i did alot of digging and cudnt find any solution to my problem. So my problem is that a month ago i got my samsung's original charger not working anymore, Which turned out that just adapter is faulty. so i bought an apple adapter for my s3, which worked quite well. But a few hours ago i found my samsung galaxy s3 not charging. i flashed my rom again, did factory restore, anything i cud do as a first aid. i did it. i checked my phone on my bros charger but still no success. and his charger is working fine with his mobile, I have noticed that it connects without taking a second when i restart phone in download mode. But doesnt plug in to my laptop aswell( But works when phone is in download mode).
Note: My personal charger is working fine on my bro's cell.
Thanks!!
Usual reply .
Its the cable or the usb port .
Change cable
Take to a service centre .
....
But it does connect in download mode but not in normal mode to laptop with the same cable.
swahmad76 said:
But it does connect in download mode but not in normal mode to laptop with the same cable.
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Try a different charger on your phone, if that works your cable needs to be replace or charger with cable replaced, if a different charger does not work then your phones USB port is damaged and needs a service repair.
There are multiple micro connections so it may connect to your PC in download mode but if the connections that link the charger are not working it wont charge.
So try a deferent charger and a different USB cable if neither make the phone charge the USB port on the phone needs to be looked at by a technician to repair it.
Hi.
I've been using my S3 for about 2 years. Recently, I started having the following issues with it's charging port:
1. Charging is not consistent. It varies a lot. Sometimes slow, sometimes fast. Original Samsung charger charges slowly, HTC one charges the fastest.
2. If battery drops to 0, it does not turn on by connecting the charger. Instead, I have to connect it to PC. It then turns on and then starts charging.
3. It is not recognized by my PC (or any PC) that used to recognize it before. Changing USB cables, reinstalling drivers and all the usual tricks don't work. It is not recognized in recovery mode or mass USB storage mount either. However, it still charges the phone.
I have a strong suspicion that the problem is with the port but I need confirmation from you guys before giving it for repair. I'm on a custom 4.3 ROM and changing ROMs didn't help any of the above issues either.
Thanks.
ahmadmalik88 said:
Hi.
I've been using my S3 for about 2 years. Recently, I started having the following issues with it's charging port:
1. Charging is not consistent. It varies a lot. Sometimes slow, sometimes fast. Original Samsung charger charges slowly, HTC one charges the fastest.
2. If battery drops to 0, it does not turn on by connecting the charger. Instead, I have to connect it to PC. It then turns on and then starts charging.
3. It is not recognized by my PC (or any PC) that used to recognize it before. Changing USB cables, reinstalling drivers and all the usual tricks don't work. It is not recognized in recovery mode or mass USB storage mount either. However, it still charges the phone.
I have a strong suspicion that the problem is with the port but I need confirmation from you guys before giving it for repair. I'm on a custom 4.3 ROM and changing ROMs didn't help any of the above issues either.
Thanks.
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Sounds like it could be the port at fault. The original charger is hopeless and not a good guide to go on.
I just bought a samsung galaxy Alpha with Epsil 4.4 rom installed and twrp and root installed so normally i would reset the phone and flash the stock firmware and mess with it for a little while but the thing is it won't connect to any pc at all
I've tried the following
5 different usb cable
putting it into different usb port
the *#0808#* code and messing around with it
Restarting
Factory reset
different pcs
Replacing the battery
giving it to the repairshop but they cannot fix it
Also I noticed that USB options are missing from the phone litterally missing from the phone it self even at the Developers option its missing. when you plug the phone in to a usb it just charges tapping the charging notification does nothing charging rates are also slow even using a 2A 5V charger it takes about 4~5 hrs even tried replacing the battery did nothing as well.
Can anyone help me is it a software related stuff or hardware related? TIA
over the last couple days, my phone has not been charging properly. go to plug it in for the night and come back to an empty battery.
looked into it and it looks like the phone is stuck in power supply mode, i cant change it.
Attempted fixes:
tried multiple adapters
stock LG cable and charger
Lenovo laptop adapter 65w PD
Razer laptop adapter 45W PD
Kopplen powerbank PD +QC 3.0
USB port on APC battery backup
stock magnetic charger does charge, it just sucks and requires the dual screen case vs the otter box i have.
reset phone (restore from backup)
works temporarily then goes back
tried reset without backup
cleaned the port with isopropyl and q-tip
checked for bent pins
the phone charges when not turned on
from what i can tell it is a software glitch, not hardware related. i get this in 2019 but i started using a G8 because i had a few issues with the case (mostly size.)
does anyone have any suggestion on what might help fix this? this phone might be 2 years old but has only been used for 8 months the battery still charges to full and otherwise works great.
i am running android security patch from august so maybe the December one will fix this.
Bro did your problem solved? How did you solved? Please tell me because I'm also having same problem.
Thanks, but select usb configuration is opening for only about Milliseconds and then it close automatically. So what should I do.
I am also facing this issue post Android 12 update. I have to always select Charging mode from the power mode and selecting 'always' does not work. Everytime i connect a charger, I have to select Charging. Mine 'Power' options stay in the drop down menu though. Its a big hassle and need a resolution. Does LG have any helpline we can contact?
Any news? I have lg q60 with that problem. Phone looks like brand new. Cleaning charging port and motherboard doesn't helped.
I have got same issue in LG G8, few month ago it happened with me, but it was fixed automatically.
Now problem is when connected to charging socket, it shows slow charging and charge mobile in 6 7 hours, when connecting USB or other OTG etc it shows Power supply mode and Computer is not showing mobile.
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Najam121 said:
Now problem is when connected to charging socket, it shows slow charging and charge mobile in 6 7 hours, when connecting USB or other OTG etc it shows Power supply mode and Computer is not showing mobile.
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I Am also Facing same issue bro
Devilx21 said:
Thanks, but select usb configuration is opening for only about Milliseconds and then it close automatically. So what should I do.
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I too have the same problem bro