[Q] New Z2 play from China has huge battery drain. - Moto Z2 Play Questions & Answers

I bought a "bargain" Z2 play from a China seller, and find it drains battery in about 7 hours.
drain occurs out-of-box with no updates. Flight mode doers not help.
Box was opened, I assume to flash international firmware. Phone is not "Play protect certified", so no google pay. Netflix works, but had to be side-loaded.
https://www.coolicool.com/cell-phon...cta-core-55-inch-corning-gorilla-glas-g-48042
Utilities report around 600mA with screen on, over 400mA off & idle.
So charged, screen off and idle, phone is warm and runs flat in around 7 hours.
settings->battery does not show any apps with high usage.
XT1710-08 PVT1 Android 8.0.0 with 1st June'18 patch.
Anything to try before attempting RMA to China?
Should I try another firmware, or would that void warranty - if a Coolicool china warranty is honored.

A few days later, after numerous tests and factory resets, the problem suddenly went away.
About 1.5hrs into a 5 hr test in standby, the logs show the drain suddenly stopped.
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Problem has not been seen since, even after firmware reset.
Any ideas? I hope it is permanent.

Related

Unusual battery behaviour

Hi,
I bought this tablet (Tab S 10.5 LTE, model number T-805) on September 2014. In the last month I'm experiencing weird battery behaviour, like the one in the screen attached. I had about 50% of battery charge and I started a game like Angry Birds 2.
In a matter of minutes, the tablet warned me that the battery charge was under 15% and after another minute the under 5% charge warning message appeared.
Questions:
1) is the tablet battery already worn out? Do you know if Samsung European warranty cover battery problems?
2) Before sending the tablet back to Samsung, should I try recalibrating the battery? I have an old power adaptor with 5V 0,7A (or 5V 1A), should I try a a "slow charge" to see if the battery situation improve?
I have the latest firmware, lollipop 5.0.2 and I did a factory reset after the update.
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Thanks in advance,
bye
Do a battery re-calibrate is the first thing i would do.
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
John.
Thanks Thinderbox, I'll try with root and battery calibration.
Update: after a battery calibration discharge rate of the battery seems back to normal. Thanks again @Tinderbox (UK)!

Huge general battery drain

I've bought my N5x 8 months ago, and I've never achieved more than 3h+ screen time.
After upgrading to nougat, nothing changed. So that's why I'm starting a new thread
At this point, I dont really know what to do. I've tried disabling Ok google, location, nothing changed.
Here are some tests
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Some tests from today. I've charged the phone yesterday, left it, and then used it today for 1h straight
I was thinking to buy a new battery, or maybe I've read that the G2 battery which has more mAh fits too.
In android there aren't tests which indicate the real capacity of batteries like on Windows/Linux PCs
I was always on 3G btw.
I don't know much I would say it's the data connection taking up too much, or maybe you don't get good reception and the phone keeps trying to get it, judging that by the red lines I see I the bar graph thingy.
I've recently changed my mobile provider but no changes at all
Restart your phone and delete cache
Already wiped my phone days ago... Nothing changed at all
Another test, this time, I've disabled REALLY everything, from app syncronization, location history, location set to OFF
But the battery life is still awful enough! I've got barely 3h of screen (charging it a bit, so we are between here)

Problem with Kernel/Proximity Sensor causes Battery Drain

Hi,
I have a problem with my G5S recently. I had already sent it to a service center because of this, but Moto's Partner for repairs in Germany is horribly incompetent, so it came back with the same issues still occuring.
I think the whole thing began with a restart by holding power for 10 seconds some weeks ago. Later that day I noticed the infrared sensor on the phone's back to glow permanently red, much brighter than normal. It is the one left to the camera. This is even the case if I power down the phone, only with 0 battery the sensor goes off until I recharge.
With this sensor bug comes a massive battery drain, the phone never seems to go into deep sleep mode, the battery stats in the settings show a ongoing bar under active time. I made some screenshots of GSam Battery Monitor, maybe someone can tell me how to stop the process which holds the device active. The phone has no root or any modification by the way.
Thanks!
Screenshots:
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Miui 10.3 "Android System" Battery Drain

Hy guys!
My Redmi 7 has an issue because "Android System" is Draining my Battery like Hell even in idle Mode my Phone getting hot.
I reflashed the whole rom with MiFlash Tool but the problem is still there.
Anyone faceing this issue too?
Any possible fix?
Which rom do you have?
With official 10.3.1.0 pfleuxm stand by is phenomenal, and i use bt for audio all the time
Im facing this issue. No solution for now
I fixed it in MiuiMiX first version, the one that i shared with gsi, n more in a second version that I shared only on telegram for now
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I'm on 10.3.10 Stable (Global) and everything seems normal. My phone never gets warm unless I play games.
With or without wifi, it can last at least a day on standby.
Darth Bidder said:
I'm on 10.3.10 Stable (Global) and everything seems normal. My phone never gets warm unless I play games.
With or without wifi, it can last at least a day on standby.
Click to expand...
Click to collapse
I testing deep sleep, not bad to lose 6/7% in 14 h without Android system or Google services let lose battery

Android 10 Update Bug Screen Flickering

Have a look at this ...
scary :laugh:
https://youtu.be/2K6OfvVCSus
My 835 did something similar the first "real" restart after Android 10 got installed, went on for ~20-25 seconds I would say, then I pressed the screen on/off button twice, all came back and I could unlock the SIM and continue ... hasn't happened since ... but was indeed scary
Marcher
I had the same problem too. Another reboot cleared it.
Didn't have this issue. But I noticed new battery settings and turned on the "protect battery" feature and now seemingly my sot has improved by a crazy amount I'm not sure if it's a bug.
The feature basically just makes it so your battery won't charge higher than 85%, and then when it says 100% after restart, it's the same as just 85% before. I can't post image for some reason, but I'm currently at 53 minutes of SoT and I'm still on 94%..
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Got the same issue randomly (twice since Update), thought itˋs Hardware(GPU) Problem. Iˋm going to do a Clean Android10 Install if i have the time to.

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