Mi 9T battery too cold? - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hi all. Recently my Mi 9T running MIUI 11 has started having some battery temperature issues. The sensor seems to think my battery is -40C and so I keep getting obtrusive popups telling me my phone is too cold. Tried a factory data reset but no luck. I've put some screenshots of the issue up here. Anyone else experiencing this? I might try rolling back to MIUI 10 to see if that fixes it but I'm doubtful...

DanielBerry said:
Hi all. Recently my Mi 9T running MIUI 11 has started having some battery temperature issues. The sensor seems to think my battery is -40C and so I keep getting obtrusive popups telling me my phone is too cold. Tried a factory data reset but no luck. I've put some screenshots of the issue up here. Anyone else experiencing this? I might try rolling back to MIUI 10 to see if that fixes it but I'm doubtful...
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Sounds like a hardware issue..

DanielBerry said:
Hi all. Recently my Mi 9T running MIUI 11 has started having some battery temperature issues. The sensor seems to think my battery is -40C and so I keep getting obtrusive popups telling me my phone is too cold. Tried a factory data reset but no luck. I've put some screenshots of the issue up here. Anyone else experiencing this? I might try rolling back to MIUI 10 to see if that fixes it but I'm doubtful...
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Click to collapse
-40°? May be a broken temperature sensor. If it's that cold you most probably live on the north pole....
I recently updated from MIUI 10 to 11 by ota and temperatures are fine.
Sent from my Mi 9T using XDA Labs

I have the same problem here temperature stuck at -40 and then when I restart it flashes mi logo and won't start for some time. When the temperate is -40 it won't charge.
Also miui 11 update and a new phone (under 1 month)

Knghan said:
I have the same problem here temperature stuck at -40 and then when I restart it flashes mi logo and won't start for some time. When the temperate is -40 it won't charge.
Also miui 11 update and a new phone (under 1 month)
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Interesting... That's exactly the same as what was happening to me. I ended up sending the phone back to be repaired. It's worrying as I've heard so much good stuff about this phone. Guess it's not a widespread issue but still sucks. I'm pretty sure it's something to do with the battery/battery connector as I was also getting battery drain and at one point the battery percentage wasn't updating.

Related

Galaxy note 4 fast battery drain issue

I m using galaxy Note 4 N910C, which i have had for 15 month.
Since the last 2 or 3 months, the battery drain increased a lot, and it goes incredibly fast from 30~20% to 0%. Sometimes it may even shut when at 20...I m thinking this is happening because of OS update to marshmallow and since then no more updates for us.
But right now my phone screen started flickering, my aplications became very laggy and unresponsive, and phone lost mobile signal (wifi still connected). I plugged the charger in and it still kept falling untill 0% and turned off.
This is the problem I m also having. Many have got the same problem. Why it actually happening. Mostly seems to be software issues. After factory reset my battery stays longer but within 2 to 3days again same problem. Because of marshmallow update. **** what the ****ing developers doing ? We need one ****in updatell to fix this issue.
I have even heard that the battery calibration in android 6.0.1 update has some sort of problem and recalibration would fix the problem for some but not for all since it didn't fixed my problem. Anyone who has some ideas about this severe issue please help. Help will be appreciated. Thank you.
knadityas92 said:
I m using galaxy Note 4 N910C, which i have had for 15 month.
Click to expand...
Click to collapse
Try a new battery.
Already tried 2 batteries.
Kinsman-UK said:
Try a new battery.
Click to expand...
Click to collapse
already tried 2 batteries newly bought
knadityas92 said:
already tried 2 batteries newly bought
Click to expand...
Click to collapse
OK, well it's definitely not the Marshmallow update - I've been using it on my N910C since it was released and on a recently purchased battery (direct from Samsung) I'm getting 5-6 hours SoT and battery always goes to 1% before shutting down (although I rarely let it get that low).
It may be some other software causing your problem, a hardware issue, a non-genuine battery, or you somehow need to reset the battery stats. Because it works OK for 2-3 days after a reset, it sounds like it might be some app causing an issue.

Issue??? Most of time, battery drop 1% after i unlock phone and use it a little

Hi people!
I cannot complain about battery life, specially in stand by (i rarely active use the phone), with wifi always active and during day time whatssapp web active in background, after root, naptime to force doze and other optimization here and there, my battery last till 6/8 days (with little screen time, 10/20 minuts/day), lol.
Problem is the screen use a lot of juice, even if i set up brightness around 55% only.
And, more strange, i lost 1% of battery almost all time i unlock the screen and use the phone a little.
I mean, i unlock for example the phone and im 80% battery, in 20/60 seconds will turn to 79%.
I unlock and use a little when is at 56%, after 10/30/60 second, turn to 55%.. and so on...
This happen most of the time i unlock it to check screen and i play around a little checking apps and doing stuff, but no games or heavy apps.
Im in last January oreo patch.
Is a common "issue", if issue can be called?
Is a behavior other mi a1 phone noticed too?
My phone was behaving like this also before root and before use naptime.
Facing same issues
I have notice this too but also 1 restart cost 1% battery life is this normal? So if I continuously restart phone 5 times it will use 5%, is this like this for other phones too I'm not quite sure?
I don't have such issue, I turned on/off 6 times with delay for about 60 sec and it dropped only 1% the first time, and I keep the screen brightness about 70%
jasmeet21 said:
I have notice this too but also 1 restart cost 1% battery life is this normal? So if I continuously restart phone 5 times it will use 5%, is this like this for other phones too I'm not quite sure?
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Click to collapse
For restart I would say it's normal
Yes, it's the "famous" battery drain on Oreo...it should be fixed with February update.
Sent from my Mi A1 using XDA Labs
N1ck474 said:
Yes, it's the "famous" battery drain on Oreo...it should be fixed with February update.
Sent from my Mi A1 using XDA Labs
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Click to collapse
the battery drain in oreo wasnt about bluetooth and was fixed in january patch?
riccetto80 said:
the battery drain in oreo wasnt about bluetooth and was fixed in january patch?
Click to expand...
Click to collapse
Battery Drain still right here on January update!
With February it's fixed...
Sent from my Mi A1 using XDA Labs
Ok, can you please be more precise? is still a Bluetooth issue the battery drain or is a general issue?
because i always have Bluetooth disabled and i experience this 1% drop as described in first post.
N1ck474 said:
Battery Drain still right here on January update!
With February it's fixed...
Sent from my Mi A1 using XDA Labs
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Click to collapse
please can you give more info about or link to read about? i was sure the oreo drain was only about bluetooth! you seems to know info about another kind of battery drain!
riccetto80 said:
please can you give more info about or link to read about? i was sure the oreo drain was only about bluetooth! you seems to know info about another kind of battery drain!
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Click to collapse
I have battery drain on my phone.
For example, i'm working from 8 AM to 12 AM, now it's 12:30 AM and i NEVER used the phone (i can't) but i have 78% of battery.
Zero Deep sleep for me!
Sent from my Mi A1 using XDA Labs
N1ck474 said:
I have battery drain on my phone.
For example, i'm working from 8 AM to 12 AM, now it's 12:30 AM and i NEVER used the phone (i can't) but i have 78% of battery.
Zero Deep sleep for me!
Sent from my Mi A1 using XDA Labs
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Click to collapse
OK but this seems more a issue of your phone, not a general, operative system base, battery drain.
And your issue dont have similarities with phenom i described in first post in this topic!
You must check what app/setthing keep your phone awake while in stand by and fix it.
riccetto80 said:
OK but this seems more a issue of your phone, not a general, operative system base, battery drain.
And your issue dont have similarities with phenom i described in first post in this topic!
You must check what app/setthing keep your phone awake while in stand by and fix it.
Click to expand...
Click to collapse
Just go on MIUI Forum.
Mi A1 subforum.
There's a lot of posts about battery drain.
It's not an issue of my phone.
AND it's battery in your "phenom" too.
Or you have a damaged battery.
Sent from my Mi A1 using XDA Labs
N1ck474 said:
Just go on MIUI Forum.
Mi A1 subforum.
There's a lot of posts about battery drain.
It's not an issue of my phone.
AND it's battery in your "phenom" too.
Or you have a damaged battery.
Sent from my Mi A1 using XDA Labs
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Click to collapse
well if was battery damaged i didint have so good stand by battery!
Ok, so if there are still oreo battery drain issue probable this explain my experience too!
Good they fixed in february update.

(top of) mi 9T getting hot

Since a few days my mi9T is getting pretty hot on top of the phone. Average temp is 38C but top is far over 40/50C
Anyone any idea?
frankhaagsman said:
Since a few days my mi9T is getting pretty hot on top of the phone. Average temp is 38C but top is far over 40/50C
Anyone any idea?
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Click to collapse
How did you measure that out? Just curious because of 40/50, 10 Celsius difference. Lmao
Several apps (cpu analysers, battery monitors). Temp varies per app but all are high (45,48,49) and phone feels hot.
Also sometimes it makes a notification/alert noise which I cannot locate
Clear Google Services Data and restart.
Worked for me.
BellPego said:
Clear Google Services Data and restart.
Worked for me.
Click to expand...
Click to collapse
How? Do you mean Google play store data?
Top on phone is with my Mi 9t is very hot!
Same here. Started to heat up on top a bit more than usual. And got bigger problem later.
solution (maybe)
I had this problem for 2 weeks now and I tried multiple custom roms. After all the roms I found a sollution, I hope it works with yours too. I don't know if it helps to install xiaomi.eu but I'm on xiaomi.eu and when I dissabled NFC my battery is back at where it was 4 weeks ago, long battery life and not getting hot. So maybe it's only NFC that's causing it but maybe xiaomi.eu also helped solving the problem.

100% battery drainage on standby

So this has happened twice now in span of 3 weeks. I charged my phone to 100%, turned on airplane mode, kept the wifi off as well. All the apps were closed. I checked my phone 8 hours later and it was powered off. I plugged in charger and after 10 minutes it gained 1 percent charge. Ironically battery works all good normally, it's just these two instances where it went dead overnight without any use and with network and wifi off. What could be the problem? Any ideas
MI 9T
Miui 11 global 11 0.1 stable
Note: This never happened on miui 10, been using the phone since September. Upgraded to miui 11 in early November.
Cool story, been discussed here many times. It's an issue with OS drm, happened to me twice. Search next time
yaro666 said:
Cool story, been discussed here many times. It's an issue with OS drm, happened to me twice. Search next time
Click to expand...
Click to collapse
I did search. Couldn't find any relevant information. Is there any fix?
Evan_Bourne said:
So this has happened twice now in span of 3 weeks. I charged my phone to 100%, turned on airplane mode, kept the wifi off as well. All the apps were closed. I checked my phone 8 hours later and it was powered off. I plugged in charger and after 10 minutes it gained 1 percent charge. Ironically battery works all good normally, it's just these two instances where it went dead overnight without any use and with network and wifi off. What could be the problem? Any ideas
MI 9T
Miui 11 global 11 0.1 stable
Note: This never happened on miui 10, been using the phone since September. Upgraded to miui 11 in early November.
Click to expand...
Click to collapse
Go to beta and check if the notifications on apps such as Whatsapp and Facebook are off on both the apps and OS
It could be WhatsApp related. I used whatsapp rarely and it drain happened when it was used, so might be coincidence or Whatsapp is gathering all our stuff in the background
Evan_Bourne said:
I did search. Couldn't find any relevant information. Is there any fix?
Click to expand...
Click to collapse
Have the same issue, in my case was youtube, uninstall using xiaomi ADB tool (windows app). It trigger some drm services and top the two big Cores at max freq. Uninstall youtube and test ir it happen again.
Oh, did you used the original charger ?
You can use YouTube vanced for non root also
Just because you close the apps does not mean they won't run by themselves at some point. No issues here since I got my phone 1 month ago. It has to be an app you have installed
Sent from my Xiaomi Mi 9T using XDA Labs
Tronic71 said:
Just because you close the apps does not mean they won't run by themselves at some point. No issues here since I got my phone 1 month ago. It has to be an app you have installed
Sent from my Xiaomi Mi 9T using XDA Labs
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Click to collapse
I bet you got the EEU versión, not the global. This issue only happens in the global
maxionline said:
I bet you got the EEU versión, not the global. This issue only happens in the global
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Click to collapse
Nope I have the global version.
Sent from my Xiaomi Mi 9T using XDA Labs
Tronic71 said:
Just because you close the apps does not mean they won't run by themselves at some point. No issues here since I got my phone 1 month ago. It has to be an app you have installed
Sent from my Xiaomi Mi 9T using XDA Labs
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Click to collapse
Hadn't installed anything new prior to the occurrence of this issue. It hasn't happened again though but this needs to be sorted out as it has happened twice in about a month. Personally from what I've noticed, it happens if you unplug your phone before it's fully charged and then moments later plug it back in and let it go to 100%. Other thing I've noticed is that if you leave the phone on charge for like 10 to 15 minutes after it reaches 100%, battery tends to last much longer than it would if you were to unplug it soon as it hits 100%.

Mi k20 Battery problem.

I am facing a fast battery drain issue in my mi k20 smart phone after MiUi update.
Is it a software related issue or battery problem? Any suggestion ? Charging speed is also reduced. :crying::crying:
mukeshcreatisoul said:
I am facing a fast battery drain issue in my mi k20 smart phone after MiUi update.
Is it a software related issue or battery problem? Any suggestion ? Charging speed is also reduced. :crying::crying:
Click to expand...
Click to collapse
There are already three other threads about battery drain with MUUI 12 on K20, plus discussion in other threads about MIUI 12
Did you mind first to take a look for them
Hello everyone,
I am facing the fast charging issue in k20 pro the fast charging stopped working and only does normal charging. In the hardware test it shows as current project need to test USB_ Hvdcp. Is it a software issue
Cool story, but this is K20 forum, not pro
First try different cable, different charger, check settings if fast charging is enabled
that's why you don't stick with MIUI
double post
I am facing phone hanging problem on my K20 smart phone. How to resolve this? I have reset recently but not solve my problem.
Arushipathak said:
I am facing phone hanging problem on my K20 smart phone. How to resolve this? I have reset recently but not solve my problem.
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Click to collapse
Which ROM?
Have you experienced very fast battery drain?
Does it get hot?
I think there's some issue in the mi k20. I have serviced twice and the support team finally said its a software issue, I avoided what they said and then i purchased a new battery , now its fine

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