Got my M30 about two years now and last week it started not reconizing that it should be charging, i alredy tested the cable and the charger with another smartphone and it worked. I made a factory reset, worked only one time and the problem has returned. I used a toothpick to clean any pocket dirt on the charging port. There's some kind of solution on a software lvl or i should just change the charging port?
Replace the battery, it's time.
If you suspect the charging pcb has gone south, replace as well. It's probably only $20.
Get the exact OEM p/n that's marked on the original pcb!!! Different variants may use pcb's that are incompatible with the other sister variant mobos.
If that fails to fix it, it's a loose connector etc or a possible mobo failure.
Related
I noticed when I ordered a replacement USB flex for my phone (GSM,) my replacement part number was: GT-i9250L, whereas the original part was GT-i9250. They both look exactly the same, down to each piece on the flex. I'm wondering if they are the same thing or if the "L" actually means something else.
So, for those of you who replaced their USB flex, was your replacement piece an exact replica?
I've also noticed the version number (Rev 1.6) remains the same.
I went ahead and purchased yet another USB flex replacement. Same issue. The model remains the same GT-i9250 however the Revision is now 1.4
I had bought two a long time ago. They both had different revision numbers than each other and different than what was in the phone. Neither fixed the issue I was trying to fix - batteries refused to charge but would show the charging icon anyway. Must have been something else that failed. Tried different roms, cables, etc. Nothing fixed it. Eventually just sent it in for an insurance replacement.
Thanks, I'm beginning to give up on my issue and just charge my phone by pulling the battery and using a separate wallmount charger.
I've had my G4 since almost launch day and within weeks the supplied USB cable stopped charging the phone. I thought it was a cable problem, but it worked fine with other devices.
I tried other cables with the G4 and these still charged it so I thought nothing more of it until charging degraded with every USB cable I own to where the phone would only charge 20-30% during an overnight charge and the phone would frequently not recognise it was plugged in at all. I contacted LG who did a repair under warranty and all was fine.
I've now had the repaired phone back for about 3 weeks and the same problems are starting up again and it's only a matter of time until I am forced to return again for a repair.
Is anyone else having similar problems? I thought I may have just had an unlucky manufacturing problem, and the LG reps confirmed that to repair my phone they basically replace all the internal circuit boards and components rather than just replacing the individual component that is faulty (in this case the USB/charging port)
Basic debugging includes asking stupid questions, so please forgive but still answer any of those
Are you using a different charger? If so, check if that one is within specifications and if you do send in for repair again, use a different charger.
Are you propping up the device at an odd/weird angle or in a dock of some sort with the cable attached?
(As they replaced the entire print, it's probably not this, just the USB-micro port bent or broken.)
You could double check the wall outlets being used, there might be some kind of electrical problem there.
Either using all kinds of fancy electical testing gadgets, or stick a USB light into the hub or charger, does it flicker?
When sending it back for repairs, did they check the stock charger as well?
Hopefully these questions help you find any logical or plausible cause.
FreezyExp said:
Basic debugging includes asking stupid questions, so please forgive but still answer any of those
Are you using a different charger? If so, check if that one is within specifications and if you do send in for repair again, use a different charger.
Are you propping up the device at an odd/weird angle or in a dock of some sort with the cable attached?
(As they replaced the entire print, it's probably not this, just the USB-micro port bent or broken.)
You could double check the wall outlets being used, there might be some kind of electrical problem there.
Either using all kinds of fancy electical testing gadgets, or stick a USB light into the hub or charger, does it flicker?
When sending it back for repairs, did they check the stock charger as well?
Hopefully these questions help you find any logical or plausible cause.
Click to expand...
Click to collapse
Hi FreezyExp,
1. I am using the standard charger that came with the phone, but this has not been repaired/replaced. I have tried other chargers too, but all the same issue.
2. No weird propping up or anything like that. If I hold my phone while it is plugged in it is constantly vibrating as the charger connects and disconnects, and if I place it on the desk to charge I have to ensure that I have at least 3-4" of cabe "on the desk" to give it enough support to make the connection.
3. Wall connection is fine and I have tried it with a range of outlets around the home, both with extension sockets used and plugged directly into the wall and there is no different. No flickering light when using a USB light either.
4. When I sent it back all they asked me to return was the main section of the handset - so no battery or rear cover, no cables or chargers etc
It does seem to be the same issue as last time, a USB connection becoming loose from the main motherboard, but it seems weird that I have had the same issue twice in the space of 4-5 months.
I've been having some sort of problem with my G4 usb port. If I plug it in to a computer, it will lose connection and get a connection again if I barely touch the end of the cord at the phone end. I've tried many different cords and different usb ports on my computer, but it still has problems.
I can't fast charge, either. When I plug it in to fast charge, it actually starts discharging even faster. I've had some extreme battery life problems, too. It drained from 100-36 the other night with everything disabled, and it's been doing that kind of thing a lot lately. I'm guessing that the charging port is what's messing up my battery life because it won't charge correctly.
Never dropped it or anything.
I got my G4 on January 24 and my USB port has also failed. I am getting a replacement from Verizon, but am concerned that a six month old phone has this issue.
I also own a G4 H815. A while ago the phone started not receiving any charge from the cable and I would have to prop it up from right under the cable's micro usb end. Thought it was because it was bent inside the port and not making connection with the cable so I had the port replaced. Now I'm experiencing the same problem and I think it might be the cable that's already gone kaput and is effing up the port itself. I took the phone to the same place to get the port replaced again and bought new cables (I lost both the original adapter and the cable, which were charging slow anyway. Now using a 2A Asus adapter which works great) and when I asked the guy at the repair shop, he says it's a chronic issue with G4 devices. I don't really understand how it would happen twice in just a few months even with a new charger port. What should I make of this? Did they replace my port with an already faulty one, cahrged me full price and now trying to sell this bogus or am I really doomed with this phone?
I just bought my daughter, 12, her first phone, a LG G4 F500k. The problem is that the phone keeps destroying USB cables. She charges it on my Tronsmart quick-charge 2.0 charger, the one with three ports. I've used that charger for more than a year now with the supplied Tronsmart USB cable on a G Flex 2 and a Samsung 7 Edge and the charger and cable have always performed as expected.
Now, ever since she started using it, first the Tronsmart cable went bust. Wouldn't work on the G4 or my phones, with the fast charger or other chargers. Today, the third USB cable went bust. A definite pattern is emerging here with each new USB cable lasting a week max.
One thing is that the busted cables still charge smaller devices like my mp3 player or bluetooth headset.
Another thing is that the G4 does show the fast charge notification while the USB cable is working and charges fast as well getting just, I guess, regular warm.
Could it be that my daughter messed up the G4's charge port while inserting/pulling out the cable?
I would really appreciate any help/ suggestions with this issue because I have finally run out of spare cables.
C'mon, guys... Anyone else experience this?
It happened to me too, I still don't understand how can a G4 charge port damage a USB cable? It happened to me 2 times.
In frustration ( I shouldn't have done this) I connected the USB cable to the G4 charge port and furiously bend the end metal by almost to 30* degrees because the USB cable was loose inside the G4 charge port , then I got another USB cable, the putting into G4 charge port felt tight and proper. Luckily my beloved G4 is fine.
Alright an update...
I tried a lot of the tricks I'd read about wonky micro-USB cables. I tried bending and lifting out the tabs at top (narrow) end which are present on some of the cables. I tried pressing with a needle and lifting out the tabs at the wider end... these tabs are on every cable... The cables would, sometime, start working again for a charge or two but died again.
On the 25th of Nov, 2016, I took the phone to a professional repairs guy. Upon a cursory examination, he declared that the G4's charging port was perfectly fine. I insisted that the damn thing was eating all my cables. Luckily, I had brought along one of the recent dead cables.
The repair guy looked at the charge port under some pro-microscope thingie and said there was carbon damage. Then, he stripped apart the USB cable I'd taken with me and checked that one of the terminals was shorted out.
After extensive examination, he concluded and confirmed that it indeed was the charging port that was effing up the cables because there was carbon corrosion on it that transferred to the wire... something to that effect. Interestingly, he didn't find any evidence of water damage on the inside of the phone... motherboard etc. Just the charging port.
He didn't have an original G4 replacement charging port at the moment so he applied some dielectric grease on the port and told me to use only one cable with the G4.
I can confirm that like all my other phones, the G4 was not exposed to water or about as much exposed to, I guess, ambient humidity as my other phones.
.........
Well, these are my findings after my personal debugging and pro consultation. Flagship, my ass.
-------------------------
Today, it has been 14 days since the visit to the technician. The present USB cable has lasted for 14 days now (and still working great) which is 10 days past the previous record...
My recommendation is to try and take off any oxidation/rust from the phone's charging contact (the technician just used a flat long, thin metal object to scratch off the buildup), then applying a dab of dielectric grease. It would be a good idea to turn the phone off and take out the battery before attempting this.
From what I've heard, silicon spray (WD40 brand etc.) can be used as well by spraying some first on a cotton bud and then coating the contact with it.
Try this before anything else if you are experiencing symptoms similar to what I stated in the original post.
So charging is extremely slow now: max 280mA showing in Ampere app. Tried different cables and chargers(QC3.0 certified), charging speed remains the same.
I can't connect to PC anymore. Windows doesn't even make a sound when I connect the phone to PC. Showing no device.
Headphones connected to USB port are playing only one audio channel.
I've been using LOS 15.1 since last summer without problems, haven't done any updates since. The problem with USB port emerged a month ago and I am almost convinced it's a HW issue. AIDA64 indicates no temperatures over 36°C in thermal section so sensors are working fine I guess.
Anyone tried these charging ports from Aliexpress? Comments indicate that they are not the same as the original.
It really sounds as hardware problem. I asume you already tried with the phone off, and after factory reset and the problem persists.
In my experience, the original lower board have fuses which are expensive and are replaced by resistors on chinese replacements. If you dont want to lose this, try going into a repair shop and have the USB-C port replaced or desoldered/resoldered from the board. Must be done by experienced guy or it will be melted.
I'd buy the replacement board anyway. As long as you don't use crappy chargers, you shouldnt need the fuse too much, and also, the phone have another fuse in the motherboard.
If you have not tried with the phone off, try it. I got the xiaomi wireless charger and it works like crap with the phone on. it disconnects/maintains chage/stops charging A LOT, but if I charge the phone turned off it charges without issues at full power (8-10W according to my USB meter). Maybe is just the firmware being an ass
Thank you for insights. I confirm that hard reset nor charging solved the missing QC3.0 functionality. It's clearly a HW issue.
The whole situation was caused by losing my original charger on a trip and then using certified QC3.0 charger (not from Xiaomi) and unfortunately - cheap Chinese micro USB C cable. I can't stress this more... Never use cheap cables (or chargers) they can literally fry up your port. In this case it was definitely the cable eventhough it worked fine for 5 months.
It seems (from comments) that beside fuses the charging ports from Aliexpress are missing the possibility to transfer data over USB as well. Which is not that crucial because FTP over WiFi is bearable. The real problem that I need to fix is quick charging because with 280mA on Ampere app it takes 5 hours to charge this phone.
The charging port I've bought on Ali is on its way so I will update this thread in a few weeks after inserting it into the phone.
Losing data over usb is quite a problem if you are into custom roms/mods on native miui (which resets the recovery on each update).
Hope that ali's board does have this funcionality. About charging, you can get locally a wireless charger for now, though for me it only charges fast when the phone is idle, using it always just keeps the charge (probably to avoid overheating).
So how the story ends? We're you able to solve the problem?
I had the same issue with my Mix 2. bought a replacement port from Aliexpress and Witrigs.com. As posted on most forums these replacement ports don't support fast charging (in most cases) and no USB data transfer (this is the case with mine).
I had dropped a message on the witrigs.com website to confirm if their supposedly 'OEM' replacement supports data over USB (it looks much more like the original board in the phone that the 'custom' replica one that is half the price).
but I'm not very hopeful of that being the case, given someone has already left a comment on the product page indicating they bought the OEM version and faced the same issue with no quick charging or USB data transfer
Got some problem when i lost my usb travel charger on a trip.
and now my phone was too slow and cant transfer data even if i buy the new authentic from xiaomi store.
i hard reset for 3 times and but no luck.
omg -___-
I know it's old, but I'll let you in on my problem.
I have the Mi Mix 2 and it was happily fast charging until recently. Still the original plug and cable
I have tried all sorts of theories to get it fixed and one person said to charge it while turned off
So I plugged in my usb cable and turned off my phone. Only for it to automatically fire up and go into fastboot. No charging. Just fastboot on the screen
Obviously I can get out of fastboot mode again, but is mine an option change in the settings that needs addressing?
Thanks
Hello there,
I got my Pixel 3a XL for a week now and since yesterday I'm not able to charge it with the original fast charger that came with it. With a different USB A To C cable it works, though very slow.
When I plug in the original charger one of the following happens:
- Nothing. I have to flip the cable like in the old USB days (wtf)
- It charges in a one second Interval. Meaning I hear the sound/vibration when it starts charging, but then it immediately stops charging, starts chargings, stops charging... and so on.
I already factory reset my phone, which didn't help. I tried a different charger from a galaxy phone. Same happens there. Only with a USB A to C cable which is plugged in a PC I am able to charge...
What could that be?
mason02 said:
Hello there,
I got my Pixel 3a XL for a week now and since yesterday I'm not able to charge it with the original fast charger that came with it. With a different USB A To C cable it works, though very slow.
When I plug in the original charger one of the following happens:
- Nothing. I have to flip the cable like in the old USB days (wtf)
- It charges in a one second Interval. Meaning I hear the sound/vibration when it starts charging, but then it immediately stops charging, starts chargings, stops charging... and so on.
I already factory reset my phone, which didn't help. I tried a different charger from a galaxy phone. Same happens there. Only with a USB A to C cable which is plugged in a PC I am able to charge...
What could that be?
Click to expand...
Click to collapse
First of all, is this a new, used, or factory refurbished phone? If it's new or refurbished with a warranty, get it replaced under warranty. If it was used and/or has no warranty, look at the port on the phone to see if it's dirty. Carefully clean it out with whatever will fit in the port without damaging it. Pay special attention to the bottom as debris tends to get compressed and eventually gets thick enough to keep the cable from going in far enough to make a good, secure contact.
marvelljones said:
First of all, is this a new, used, or factory refurbished phone? If it's new or refurbished with a warranty, get it replaced under warranty. If it was used and/or has no warranty, look at the port on the phone to see if it's dirty. Carefully clean it out with whatever will fit in the port without damaging it. Pay special attention to the bottom as debris tends to get compressed and eventually gets thick enough to keep the cable from going in far enough to make a good, secure contact.
Click to expand...
Click to collapse
It's brand new. I did just clean it (but nothing came out or was visible) and now charging works again...
That's weird. It was clean as a whistle and I just thought "just clean it even though it looks clean"... weird!
But thanks anyway
Do you know anyone who has a QC 3.0 adapter and cable USB 3 end? Try it on a different charger... If it fails on multiple chargers/cables, then you device is likely defective and you will need to get it repaired/replaced.
Sorry, no quick fix here...