Is my battery broke? - Huawei Mate 20 Pro Questions & Answers

So this is my second Mate 20 Pro in a week, first one had a very bad stuck or dead green pixel top right which was swapped without question and very promptly. My second seems fine but this is my first Huawei device after using Samsung for years so not having best time. Amazing phone though despite that. Unfortunately I fear a problem has come to light.
First charge I did was when that message comes on about shutting down when device reaches 2%, so popped on charge and wow charging is that fast. Turned phone on and 100%.
Second charge last night after I believe 1 day and 20 odd hours on, I switched it on after charging and it displays 93%???
Can anyone advise me on this, should I return or is this normal, I did leave it on charge turned off for whole night plugged in, could this be issue?
Thank you

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[Q] One flashing red light

Why does this do this?
I left it on charge over night last night, to my surprise - it hadn't charged...
I have read all over about this, but this is different...
I connected it again, and one blinking red light came up, not the triple you usually get if it's dead...
this is the only response, and is continuous.
it finally turned on, I checked the status after turning everything off and setting it to airplane mode. it was at 1%...
2 hours later it was still at 1%, and then after 10 minutes i checked and noticed it said 0%.. then died.
It's now still plugged in and is flashing one red light again.
Any ideas how to fix this?
Hi.
Have you taken the battery out?, if not do so for 10 seconds or more and pop it back in see what that does.
Happened to me once, no matter what I did it didn't charge do i took the phone to the service center, they messed with something on the upper side of the phone.. plugged it into the wall and booooooom ... started charging again..
When I asked him what he did, he told me " it just needs a little magic ! "
Sent from my X10i using XDA App
Haha cool
Yeah I'm gunna ring them up tomorrow, I tried that little trick but it didn't work.
It now shows no sign of life.
I'll let you know how it gets on.
hi
i had same problem last night but without putting phone to charge
when i put it in 2 diffrent charger i have red light same as usb cable
when i push power button same pb red light
hello
i find solution
we ahve to charge batterie with external charger about 2/3 hours and after put Xperia charger
solution tested 100% work fine
problem was battery was full empty
JoelMan1121 said:
Why does this do this?
I left it on charge over night last night, to my surprise - it hadn't charged...
I have read all over about this, but this is different...
I connected it again, and one blinking red light came up, not the triple you usually get if it's dead...
this is the only response, and is continuous.
it finally turned on, I checked the status after turning everything off and setting it to airplane mode. it was at 1%...
2 hours later it was still at 1%, and then after 10 minutes i checked and noticed it said 0%.. then died.
It's now still plugged in and is flashing one red light again.
Any ideas how to fix this?
Click to expand...
Click to collapse
Have you tried a different battery?
I don't know if we can fix this problem but as other posts above have said that mobile shops could be able to fix it.
You could be able to send it to SE but if your phone has been rooted or debranded you void the warranty.
i had the same problem last night, the battery died and then when i plugged it in it came on to charge, and then off again. after that point just blinking red light.
i removed the battery for some time, plugged it back in, and left it on charge for a bit and it came on.
i think the problem is, that when it starts charging, it wants to turn the screen on, which takes more power than the charger can give. so it goes into a loop. and dies.
but leaving it on charge helps (it worked for me)

battery problem

so every once in a while, i'd say every 4 or 5 days... i'll take my phone off the charger and start my day like normal. but on these days, (sometimes i notice and do a hard reset before all this happens) the upper half of the phone will get really warm and even if i do absolutely nothing on my phone, my battery will drain from full to dead in 3-4 hours.
has anyone else noticed this? i'm thinking it may be some sort of cpu cycle leak or some sort of infinite loop some background driver might get itself into.
its pretty annoying if i dont catch it right away and an hour after i unplug my phone while i'm at work to take my phone out of my pocket and have it over half battery gone already.
sheep_duck said:
so every once in a while, i'd say every 4 or 5 days... i'll take my phone off the charger and start my day like normal. but on these days, (sometimes i notice and do a hard reset before all this happens) the upper half of the phone will get really warm and even if i do absolutely nothing on my phone, my battery will drain from full to dead in 3-4 hours.
has anyone else noticed this? i'm thinking it may be some sort of cpu cycle leak or some sort of infinite loop some background driver might get itself into.
its pretty annoying if i dont catch it right away and an hour after i unplug my phone while i'm at work to take my phone out of my pocket and have it over half battery gone already.
Click to expand...
Click to collapse
I have noticed the 'staying warm after charging sometimes' phenomenon....I also sometimes leave it charging all night but it doesn't seem to charge, even though the light is on. I think this is somehow connected to the wonky power button behavior...I get a green light on full charge sometime....i've never seen it turned green while powered off.....sometimes it won't turn on while plugged in, sometimes I need to do a battery pull, sometimes the SD card too, sometimes I need to press the power button a million times or hold it extra extra long....sometimes the charging light doesn't come on and it does charge, sometimes the light comes on and it doesn't...sometimes it gets really hot after charging and doesn't cool down after sitting idle....I usually just shut it off for a minute and turn it back on...somehow.
This is definitely one of my pet peeves with this phone...I also think this is linked to some phones never turning back on again, corrupted bootloader/recovery after a 'fastboot' shut-down or hot restart...
I'm diggin' the phone, don't get me wrong, but....I can't wait for the nPrime...
yeah, but it's less so the problem of it getting warm (pre or post charging) and moreso that it will start heating up a lot and you can tell that something is running the battery down in the background, the only way to stop this is to do a battery pull restart.
has anyone had similar issues with their phone going from full battery to dead in a few hours because of a hidden bugged process or something similar?
bump 10 char
I had that happen after tuning airplane mode off then back on. But that's itt
Sent from my HTC Evo 3D.
This happened to me this morning, first time and it was very weird. I've left it charging overnight per usual and this morning when I woke up and unplugged it, it had only 10% battery left. I tried charging it in my car on my way to work and have it plugged in to my computer USB now. I disabled a bunch of stuff as shown on this thread:
http://forum.xda-developers.com/showthread.php?t=1141221
And it's now starting to charge.
I did however just update to showdown rom and had setcpu on 1.7 conservative. It still should have charged but I'm guessing a stuck process/bug drew all the power last night.

Charging Failure

Hello all. It's been a long time since I've been to this section of XDA, glad to see it's still got some life left.
I'm trying to get my old i777 working so a friend of mine can borrow it. If I remember correctly, it was running an AOKP rom when I stored it well over a year ago, and it was fine. Today I went to turn it on, nothing. I started charging it, let it go for a few hours. It still won't turn on; instead it's acting a bit strange. Every few seconds the screen flashes either the gray battery charging logo, an instant dim flash of the entire screen (a slight gray, nothing bright), or the home/back/etc buttons flash for an instant. When the charge logo appears, the screen brightens just before it goes off. All buttons are unresponsive, my computer does not recognize it. I've been unsuccessful in finding any real help with Google and searching XDA. The only advice I found was to plug it in without the battery, then put the battery in. This did not help. Any feedback would be appreciated - this little phone has a lot of sentimental value to me. It's been through hell and back, it survived my ex (who managed to break a Nokia 3310 and Nokia 920). If I have to put it to rest, I guess it's earned it, but I'd like to keep it going for just a while longer.
Did you store it away with the battery in the phone? If so, in a year, the battery could be completely drained and in some cases, that can cause a problem with charging, as in will not charge. Possibilities to test, use a fully charged battery by charging the existing battery with an external charger, or by using another battery. This would be the first thing I would try.
I am also having such a problem from time to time, when my battery is complitely drained. I am using such a device to bring the battery back to life. Always helps.
I usually plug mine into a higher powered charger like my s6 one and that gets it out of the loop.

LG V10 Charging issues

So as of last night my LG V10 has been having major issues with charging. First off I will plug it in and for a second the little battery icon will do the animation and then stop. I went to the battery status screen and it said that the phone was not charging. Secondly it will restart on its own when plugged in and it's not charging. i first noticed something was up about two weeks ago. I left my phone to charge overnight, then I went to use it when I woke up and it was at 1% battery then turned off. I plugged it back in and it charged fine. Later in the day i was on my way to work and I went to check my phone but it would not turn on. I'd press the power key (on the back) and it would just do a quick little vibration but would not turn on. I then took the battery out and put it back in. Since then it has worked fine until last night. i tested out two cables and I tried them both on my PC. T he phone would still not charge. I just went to sleep with it plugged in, hoping it would somehow charge at some point in the night. Woke up and no dice. I tried one last time to charge it and somehow it charged normally. All the way to 100%. I could even use it while charging. Just a few moments ago I tried to test it again. Surprise surprise...it would stop charging. As I type this it just restarted twice while plugged in. i just removed it from the cable now. I really have no idea what is wrong with my phone. Here are a few things I believe may have something to do with it: I use it to hear music in the shower (potentially vapor), I sometimes put the charger the wrong way (somewhat roughly), and I have it in my pocket while at work where it get hot and has lots of moisture. I am waiting on doing a factory reset. I just ordered a new battery. At this point I'm lost on what to do. I really hope someone on here can help me figure this out. I'm on AT&T by the way.
I returned mine to T-Mobile for a new one. 1 yr warranty.
Sent from my HTC One using XDA-Developers mobile app

Possible S9+ Charging Issue??

Brought my unlocked S9+ home from BestBuy Friday (the first day they became available in the US). I successfully charged it up a couple times with the provided Samsung quick charger (wired) and a cheap wireless charger I grabbed at Walmart. However last night, having the phone on the charging stand I noticed the phone's red LED remained on too long even though the charging stand light indicated it was charging the phone. Finally early this morning I checked the battery level and it had gone down. The phone was not charging. I plugged the phone into the Samsung charger for the rest of the morning. After an hour or so I checked again and the level had drop a few more percentage points! WTF?? Anyway I shut down the phone and then tried again with the wired quick charger. This time it charged fine.
I wonder if this is a pending future problem. To be honest I was watching a YouTube tutorial last night on how to bring up the diagnostic screen (using a series of phone pad key presses). I wonder if that messed with the phone somehow (I did not knowingly make any changes. Just tried some of the "tests").
Anyway, hopefully this was just a one time issue...... If not, I'll report back.
I haven't noticed any issues. Maybe it was just a one off. The only thing that will truly tell is time I guess
what temperature had the battery?
Above 45°C?
I've had this issue. I caught it when the charging failed -- had an error about CPU being too high/hot. It would not charge until I re-sat the device on the wireless charger.
wifiguru said:
I've had this issue. I caught it when the charging failed -- had an error about CPU being too high/hot. It would not charge until I re-sat the device on the wireless charger.
Click to expand...
Click to collapse
I did not notice an error message. By "re-setting" the phone on the charger do you mean moving it around?
i have this same issues. It says Fast Charging, But battery level gone down. Any one notice, Its simply say Fast Charging. But whenever its says Fast Charging and in Bracket (Its says how much time it take to complete) in that time charging works fine. I think its a software issue. Because i tried click Fast Charging turned off and on again.....then charging works fine. Some way in Software blocking this. I hope so.

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