Mate 20 Pro very slow charging - Huawei Mate 20 Pro Questions & Answers

Hello
One day I smell something burn near the phone while it was charging.
Since than it charge very very slow, 6 hours for 90%
I tried original cable and charger, I got only 250mA max.
Maybe the burn smell is not connected and its software issue?
Any advice what can I do?
In worse case is there a power management card that I can replace?
Thank you for your help!

Can you try a wireless charger, could be something with the charging port or maybe the charging brick?
Sent from my HUAWEI LYA-L09 using XDA Labs

Were you using a third party charger when you noticed the burning smell? Some third party chargers have been known to damage phones and even catch fire.

Related

XDA Mini S - not charging?

Today I obtained a XDA Mini S. I plugged it in with the charger they supplied with it and it seems dead, no charging light on the front. I'd been told it did power up.
When I checked, the charger is 5.2v but the battery is rated at 3.7v. I thought it might be down to this but I looked at my current Android phone and it is the same situation.
The charger has a standard mini-USB connector, the Mini S having a bespoke-shaped connector. I wasn't too worried about this as it was the same for my Touch Diamond when I had that a couple of years ago. The charger works, I tested it on another appliance
So what could be the problem? Dead battery? Dead phone? User error?
hi there, unfortunately I went through the same. Basically it's constantly discharging at moment. looks like theres a issue with some that don't keep charge in the lithium battery, it goes beyond a certain level and Bye bye Wizard.
I'm looking to upgrade my Wizard to latest rom and OS if I can, then I think this issue should be overcome. But for the moment, make sure you're charging with a decent ampage charger, something 1 Amp or over as the device can draw more and will eventually kill the battery.
Reg'rds.
Jon.

Charging problem

Hello,
I have a charging problem recently, I am connecting my phone to the charger, and you need to play with the micro usb cable until you hear the charging sound, also, my original charger died a few months ago so I am using different chargers (mostly my tablets chargers rating at 5V 2A).
Also, sometimes,but not always, when I charge overnight, it's not even charging, although I check before I go to sleep that the red led is on.
The charging time also varies, sometimes it's super fast and sometimes it really struggles.
I suspect the micro usb port.. but how could it be damaged so fast, this phone is so expensive, cant they make one of the most important parts more durable?
It's really frustrating, and maybe I should get a genuine S3 charger and that's the cause of the problem, but I tried to order one from eBay and it was fake(said to be "genuine"), so maybe you can link me to an eBay seller that sells the real thing from Samsung? btw, is there a way to know if it's real (it seems like 90% of the stuff there are fake)
Thanks
Have you tried the cable with different devices and the charger also yoh could try using a different cable with your phone and seen if that fixes your probelm
Sent from my GT-I9300 using xda app-developers app

Charging Woes?!

I just got my LG G2 yesterday. I also have a Nexus 7 2013 and an old Galaxy Nexus. I have a Nexus 7 charger at home and work. I have a modified Fast Charge 2.0A Car charger.
My N7 and GN could "AC" charge off of all of them. The G2 is "slow" charging off all of them. They are all 3 different models of chargers, all above 2.0A so there is plenty of oomph to get it the power it needs.
So whats up with that?
I just tested it. It isn't the Charger but the damn cables. Does LG have some kind of funky pinout for the charger?! Using the supplied cable, it is working on all of my other chargers. If I use my old cable it "Slow Charges" even with the included LG USB Charger.
So something in that cable is altering the amount of power it gets. That SUCKS!
My Nexus 7 will AC charge off the LG Cable. So it's something with that cable that the G2 likes.
LG is notorious for changing stuff around. On the G2x they flipped around the headphone control pins and came out with an additional headset for extra $$ which rendered every other headset with music controls useless. So basically now I have to go and replace all of my USB cables with something LG likes (which will almost be impossible to order something online). Anyone else having issues with other chargers? Luckily it IS taking a charge but just at USB speeds (Slow charge). I use Qi Charging at home for at night, so that isn't an issue but in my Home Office, Work Office, and (especially) my Car I need a fast charge. In the Car, using GPS with the screen on will still deplete on USB power. A fast charge is the only one that can still charge the battery under a heavy load. Similar to watching a movie probably.
All my USB cables woks fine. I would use the included Amazon Kindle cable since it is easily the longest cable with out issue. However older cables do have the problem you described but I suspect it isn't something LG specifics but rather the amount of pins connected in the cables.
-LG G2
I found that my Samsung cables from my S4 and Note 2 work fine with the G2, but any of my other cables, whether they be the cheap $3 ones, ones from other phones, or expensive ones, only charge at the slow rate. I'm hoping we can get a custom kernel that removes that restriction.
So it charges a little slower. Is this a major issue? If so, use the charger provided. Failing to see the problem here.
Maybe its just me. I get that a lot.
My Note 2 2A charger and USB works just fine. If not faster.
Sent from my LG-D802 using xda premium
My N7 2013 charger works perfectly.
player911 said:
I just got my LG G2 yesterday. I also have a Nexus 7 2013 and an old Galaxy Nexus. I have a Nexus 7 charger at home and work. I have a modified Fast Charge 2.0A Car charger.
My N7 and GN could "AC" charge off of all of them. The G2 is "slow" charging off all of them. They are all 3 different models of chargers, all above 2.0A so there is plenty of oomph to get it the power it needs.
So whats up with that?
I just tested it. It isn't the Charger but the damn cables. Does LG have some kind of funky pinout for the charger?! Using the supplied cable, it is working on all of my other chargers. If I use my old cable it "Slow Charges" even with the included LG USB Charger.
So something in that cable is altering the amount of power it gets. That SUCKS!
My Nexus 7 will AC charge off the LG Cable. So it's something with that cable that the G2 likes.
LG is notorious for changing stuff around. On the G2x they flipped around the headphone control pins and came out with an additional headset for extra $$ which rendered every other headset with music controls useless. So basically now I have to go and replace all of my USB cables with something LG likes (which will almost be impossible to order something online). Anyone else having issues with other chargers? Luckily it IS taking a charge but just at USB speeds (Slow charge). I use Qi Charging at home for at night, so that isn't an issue but in my Home Office, Work Office, and (especially) my Car I need a fast charge. In the Car, using GPS with the screen on will still deplete on USB power. A fast charge is the only one that can still charge the battery under a heavy load. Similar to watching a movie probably.
Click to expand...
Click to collapse
Have you tried going to settings>general>PC connection and setting "charge phone" there, as the phone limits the current allowed through if it's on MTP because MTP simply can't handle it.
Sent from my LG-D802 using xda app-developers app
Semantics said:
My N7 2013 charger works perfectly.
Click to expand...
Click to collapse
I am also using N7 2013 charger and it charged pretty fast. But now i'm also trying out a speakerdock. I don't know how fast that is but the n7 charger is pretty fast.
Sent from my LG-D802 using xda app-developers app
I have the same problem OP. if I don't go to bed early enough for slow charge to feed this monster battery I wake up below 100%. It really isn't that big of an issue because the battery lasts anyways but I don't like leaving home below 100%.
Sent from my LG-D800 using xda app-developers app
rfarrah said:
So it charges a little slower. Is this a major issue? If so, use the charger provided. Failing to see the problem here.
Maybe its just me. I get that a lot.
Click to expand...
Click to collapse
The Problem is that it is annoying. Not only is it charging "Slower" but also throw a icon up in the Status bar that you can't dismiss that says "Slow Charging. To Charge faster, use the original charger".
But I want to repeat that it is NOT the actual charger but the USB cables. It WILL fast charge (aka normal charge) using all of my various chargers WHEN I use specific USB Cables. Most of my cables will only slow charge, which is equivalent to a USB trickle charge that can't even charge it fast enough to power the screen. If you use the device in this mode, it still loses power with the screen on.
It just seems there is something in the cable itself that is either not connected or passing through the info to turn up the faster charging. I know the cables are Power+Data cables because I use them for ADB and MPT.
Most cables are not working. I've found a few that are. Unfortunately my 10ft desk cables and my curly car one is NOT working.
The Original Nexus 7 was picky about chargers. It wouldn't even see my car charger where my Galaxy Nexus and New Nexus 7 2013 both show AC (fast charge).
I think the difference between a slow charge and a fast charge is something like 0-100% on fast charge is 3 hours where it's like 9-10 on a slow charge. THAT is the problem.
Update:
Seems this is a legitimate case regarding the Verizon LG G2s AFTER they've received the latest OTA update. It will only charge normally on the included cable. All other cables will result in a Notification that the phone is "Slow Charging" and charges only on 500mAh. You cannot dismiss the notification. Which is the annoying part.
Current ongoing discussions are here:
http://forum.xda-developers.com/showthread.php?t=2460881
As of this posting, it affects all Verizon G2 users and there is no solution. We suspect it is just a Verizon bug. No other cables will charge normally.
No. Mentioned in that thread, my car charger from Verizon charges at ~1000mA. Long, curly, and thick. The new one with the LED and shorted pins. Attached cable and USB work on said charger. The problem is AWG, short, and voltage drops. I have yet to find a working usb cable though.
Mine (D802, EU model, GB variant):
- Belkin Charger 2.1A, N7 2013 cable -> slow charging
- N7 2013 charger + N7 2013 cable -> fast charging
So it's not just the cable; it's also dependent on the charger.
The voltage drop in the cable will cause the phone to draw a substantially lower charge. Therr doesn't seem to be anything unusual about the cable other than it being unusually good quality, being thick and short.
When charging, it's important having a charger with the data pins shorted, but I think most wall charger are. The slow charge warnings are something special in the Verizon models, I only get a slow charge warning when It's actually slow on my d802.
It will appear as though there is a difference of what will happen if there is a voltage drop in the cable based in your carrier model, but the hardware which charges the phone should be standard, albeit probably better quality than most other chargers.
Sent from my LG-D802 using XDA Premium 4 mobile app
Hmnmm
I stopped worrying about cables, adapters, etc by using a TYLT VU wireless charger. It chargers both my Verizon lg g2 and my Nexus 7-2013 fully and quickly. My g2 takes only 2-3 hours and my Nexus is in a leather case.
No wworries, just lay either one on its 45 degee angle platform and forget about it. Truly a wonderful charger.
I have a Samsung Qi Charger. I don't worry about it but there is a software bug with the Verizon model since the OTA update. Another thread listed above tells of the details.
Sent from my Nexus 7 using XDA Premium 4 mobile app
the solution is simple. just shortcircut data+ and data- and it will fast charge.
hopefully som Kernel hacker can build us a new Kernel. when the phone detect data connection it goes to 500mah. if u chortcircut them 1a+
maydayind said:
the solution is simple. just shortcircut data+ and data- and it will fast charge.
hopefully som Kernel hacker can build us a new Kernel. when the phone detect data connection it goes to 500mah. if u chortcircut them 1a+
Click to expand...
Click to collapse
This is NOT the case. The Verizon variant is very picky and requires a 24g USB 3.0 cable or else it will force slow charging at 500mah.
There is a whole thread with findings thats like 30 pages long. The Verizon model is not behaving like the other variants, so unless you have a Verizon model with the latest OTA and have personally tested and found a working solution, then you need not comment.
This thread should be closed so random uninformed persons stop making false accusations. This thread was started over a real problem but didn't take off. Another thread was created that did, and it is linked above. This is a real problem with a real solution. All real findings and discoveries are listed in that active thread listed above.
This should be a place holder for searches but needs no new comments. Please direct all comments to the other thread linked above.
Sent from my Nexus 7 using XDA Premium 4 mobile app
And linked here for easy reference:
http://forum.xda-developers.com/showthread.php?t=2460881
Swyped from my Incredible 4G using Tapatalk Pro 12-10

Slow charging with phone turned On

Hello dear fellows- i am facing a very strange issue on my lg g5 (850).
I have a third party charger (Aukey QC 2.0) with a usb A to Usb Type C cable. This charger never failed me once on any of my Samsung phones. Quick charging always worked as it should but with lg g5 its charging speed is very slow. According to Ampere app its just 310 mA. After connecting this charger it even shows fast charging notification but fast charging is not there.
Today i've decided to charge it after turning it off completely and guess what... It was charging really fast as it should while turned On.
Now i am confused whether it's LG's software which is preventing 3rd party cables/chargers to charge fast while turned On or is it something else.
Any input guys or similar experience?
Sent from my LG-H850 using XDA-Developers mobile app
It's always possible an app is using a lot of battery while you're charging. So the phone charges slower. Question though, why don't you just use the provided charger from LG?
Sent from my LG-H850 using XDA-Developers mobile app
davitox87 said:
It's always possible an app is using a lot of battery while you're charging. So the phone charges slower. Question though, why don't you just use the provided charger from LG?
Sent from my LG-H850 using XDA-Developers mobile app
Click to expand...
Click to collapse
Unfortunately, the LG charger was lost last week during my travel so by chance I had this Aukey charger lying around which is Quick Charge 2.0 supported so i am trying to accomplish the original results with it until i'll get my hands on a QC 3.0 compatible charger.
Hm, my Aukey Quickcharge car charger even works fine with my phone.
Make sure you aren't using the phone while charging it, it will always charge much slower.
I have some doubts on my data cable. Will try to swap it with another one and will test again.
Sent from my LG-H850 using XDA-Developers mobile app
Swaping cables didn't help either
Sent from my LG-H850 using XDA-Developers mobile app
I can confirm that the LG software does not prevent fast charge with 3rd party chargers and cables.
I'm using a 3rd party QC 3 charger with a 3rd party cable, and fast charging is working just fine when phone is powered on.
And in Battery Monitor Widget I can see that it actually is fast charging and is using QC 3 to throttle charging amperage.
However I've experienced a couple of times, when changing cable in the charger, that it wouldn't fast charge. It was solved by removing the cable from the charger and connect it again, and then it works just fine afterwards.
rd-Target said:
I can confirm that the LG software does not prevent fast charge with 3rd party chargers and cables.
I'm using a 3rd party QC 3 charger with a 3rd party cable, and fast charging is working just fine when phone is powered on.
And in Battery Monitor Widget I can see that it actually is fast charging and is using QC 3 to throttle charging amperage.
However I've experienced a couple of times, when changing cable in the charger, that it wouldn't fast charge. It was solved by removing the cable from the charger and connect it again, and then it works just fine afterwards.
Click to expand...
Click to collapse
Thanks for the confirmation and relevant information.
Right now i only have QC 2.0 charger but i will try to arrange QC 3.0 charger soon to remove any of my doubts.
Sent from my LG-H850 using XDA-Developers mobile app
Seems like slow charging has something to do with the heat/temperature of the battery or overall phone. If i try to charge it when the battery temps are around 30 then it charges really fast but if the temp is above 30 then software somehow restricts the fast charging to avoid any damages.
I am not sure if the above analysis is valid but my observation has lead me to this point only so far.
Sent from my LG-H850 using XDA-Developers mobile app
lethalfriend said:
Seems like slow charging has something to do with the heat/temperature of the battery or overall phone. If i try to charge it when the battery temps are around 30 then it charges really fast but if the temp is above 30 then software somehow restricts the fast charging to avoid any damages.
I am not sure if the above analysis is valid but my observation has lead me to this point only so far.
Sent from my LG-H850 using XDA-Developers mobile app
Click to expand...
Click to collapse
I learned 2 things from my testing using ampere and a drok USB current meter:
First, ampere isn't really that accurate when it comes to this phone and charging currents. It was consistently about 200mah off.
Secondly if the phone is even somewhat warm, it will limit the charge current to ~300 mah with the screen on. However if you turn the screen off, it returns to full charging speed (1.8 amps in the case of my charger) I think it is some sort of thermal throttle to keep the battery from getting too hot.
straxxus said:
I learned 2 things from my testing using ampere and a drok USB current meter:
First, ampere isn't really that accurate when it comes to this phone and charging currents. It was consistently about 200mah off.
Secondly if the phone is even somewhat warm, it will limit the charge current to ~300 mah with the screen on. However if you turn the screen off, it returns to full charging speed (1.8 amps in the case of my charger) I think it is some sort of thermal throttle to keep the battery from getting too hot.
Click to expand...
Click to collapse
since i updated to D it always says slow charging use genuine cable an charger. I already am ?
jazz452 said:
since i updated to D it always says slow charging use genuine cable an charger. I already am
Click to expand...
Click to collapse
That really is frustrating. I always see fast charging when plugged in, although it definitely is not fast at all if you are using it or have the screen on .
Are you plugged into a wall outlet directly? Not an extension cord? Sounds like a warranty replacement may be in order, it's possible there's something faulty with your USB C connector.
Have I not voided warranty with unlock? thanks
Tried with xiaomi charger and it works, no joy with original.
Must be faulty lg charger using same cable
I have LG G4 and I was facing the exact same problem. The phone would charge very slow while screen was on. Once I let the screen go off the phone charged at the expected rate. It seems LG is incorporating some serious throttling in their phones.
lethalfriend said:
Hello dear fellows- i am facing a very strange issue on my lg g5 (850).
I have a third party charger (Aukey QC 2.0) with a usb A to Usb Type C cable. This charger never failed me once on any of my Samsung phones. Quick charging always worked as it should but with lg g5 its charging speed is very slow. According to Ampere app its just 310 mA. After connecting this charger it even shows fast charging notification but fast charging is not there.
Today i've decided to charge it after turning it off completely and guess what... It was charging really fast as it should while turned On.
Now i am confused whether it's LG's software which is preventing 3rd party cables/chargers to charge fast while turned On or is it something else.
Any input guys or similar experience?
Click to expand...
Click to collapse
I think you can not fast charge while the phone is turned off. Maybe someone can start another thread where we can compare battery logs because this will help to see the amount of time used for charging. Is there any way of seeing if the device is using QC 2 or 3?
LG G5 on 7.0
I just got a Warranty phone because of GPS pins lost contact with case. Now I'm getting the slow charge message. I just found if I flipped the USB C over it fast charges. Just thought I would share though doubt y'all wouldn't have learned this by now with all of the testing you've done already.
charlyRoot said:
LG G5 on 7.0
I just got a Warranty phone because of GPS pins lost contact with case. Now I'm getting the slow charge message. I just found if I flipped the USB C over it fast charges. Just thought I would share though doubt y'all wouldn't have learned this by now with all of the testing you've done already.
Click to expand...
Click to collapse
I experienced that too. Isn't it strange?
Also, I experience with some chargers, the phone will just start charging for some seconds and then act as if the cable was unplugged and then start charging again. I don't know why. Anyone experiencing this too? In this case, it didn't help to flip the cable...
So disappointed with my G5 now.
Was great to start with now it's slow charge. Got new batteries but the same. Will charge off till about 5/6% then switch on. Lovely phone now just useless. Even got the phone and amp modules. Lol
caesium2 said:
I experienced that too. Isn't it strange?
Also, I experience with some chargers, the phone will just start charging for some seconds and then act as if the cable was unplugged and then start charging again. I don't know why. Anyone experiencing this too? In this case, it didn't help to flip the cable...
Click to expand...
Click to collapse
This is a problem with the make of the charger. I have some Choetech QC chargers, and the programming in the QC is faulty. Some safety mech kicks in, turns off the charger, then turns back on again, over and over. I have some Tronsmart chargers and there is no issue. Of course, the OEM LG one works fine too.

Wireless fast charging not working properly?

Hi!
I just bought a genuine Huawei CP-60 Huawei wireless quick charger which should be able to charge the Mate 20 Pro with 15 Watt. I've connected the wireless charger with the 40 Watt supercharger and original 5A cable.
However, when I place the phone on the charger it says 'wireless quick charging' for around 4/5 seconds and then suddenly it turns to normal 'wireless charging'. What could cause this problem? Now the phone only charges with slow wireless speed, when it should be able to fast wireless charge the phone.
Hi,
I have had some similar issues. I've found that the charger can be quite sensitive and won't charge at full speed if using an extension cable or a multi-plug adapter.
Not the silver bullet you were hoping for I'd guess, but maybe somewhere to start?
Wayne
I am having the same issue, i am guessing that the case may cause the problem but i havent tested without the case yet.
In general i am very disappointed with huawei, hoping to change soon to an s10+.
Enviado desde mi LYA-L09 mediante Tapatalk
phatwayne said:
Hi,
I have had some similar issues. I've found that the charger can be quite sensitive and won't charge at full speed if using an extension cable or a multi-plug adapter.
Not the silver bullet you were hoping for I'd guess, but maybe somewhere to start?
Wayne
Click to expand...
Click to collapse
Thanks, but not the sollution for me. I've tried it with the 40W charger plugged in directly to my wall plug. Still same problem.
bastienff said:
I am having the same issue, i am guessing that the case may cause the problem but i havent tested without the case yet.
In general i am very disappointed with huawei, hoping to change soon to an s10+.
Enviado desde mi LYA-L09 mediante Tapatalk
Click to expand...
Click to collapse
I've also tried it without a case. Same problem.
So strange. For 5 seconds it shows 'wireless quick charging' and then suddenly it switches to 'wireless charging'.
I've also had some issues. Changed to a slimmer case to utilize the fast wireless charging. It'll charge some, but not all the time. Always starts. I tried to use it over night and found in the morning the battery was like 65% and the charger was flashing on the LED indicator. Not sure what happens. Maybe I'm bumping it in my sleep? But it seems to be centered.
I have the same issue sometimes. My guess is placement of the Mate is not correct, and then the charger starts with a low charging power and when it tries to increase, it gets issues as the phone is not 100% aligned.

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