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[ROM][4.4.2] AOSP by maucat


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Posted

Signal is OK. Try to read about dBm to understand what are the good values for 3g signal. Google it. It all not take more than 5 minutes.

About dialer, a friend of mine confirmed also the black screen bug. This is a link for a dialer that works fine. I tested myself in the last 3 revisions of maucat's ROM.

https://www.wetransfer.com/downloads/43e4e9d1992844e580c972f40fc1e46520150107145015/c9caf8ef1ca0606c02b2afaa9cd966dc20150107145015/0a04cf

Posted

When my coolpad had ten percent of battery it's shut down like if i would remove the battery. Its happened with the version of January 4th.

Guest dalyer
Posted (edited)

Can somebody please explain the battery calibration thing to me once and for all?

My understanding is that battery calibration basically involves charging to 100% and then deleting batterystats.bin (which happens automatically anyway).

But it's well known now that this file only contains stats for what apps/services/threads etc. have used the battery in the past.

It has nothing to do with telling you or the device about the capacity or charging characteristics of the actual battery.

So why do people keep recommending battery calibration and how does it impact how the device operates?

 

http://forum.xda-developers.com/galaxy-s3/general/info-battery-stats-wiping-helpful-t2256038/post40839160#post40839160

Edited by dalyer
Guest mindtrapper
Posted (edited)

The app and the deleting of the file might be of no use but the process or charging to 100% and then letting the phone shut down from low battery helps android perform it's own "internal" calibration, in a way. I am no expert but I always thought that the battery indicator and the actual capacity sometimes get "misaligned" after flashing, so, by doing the process above, you help android read the battery correctly again.

Edited by mindtrapper
Guest dalyer
Posted

Thanks but I remain skeptical because I've never seen a believable technical explanation of why calibration should help.

In contrast there are plenty of technical explanations of why it does nothing useful (in particular charging to 100%, deleting batterystats.bin, full discharge etc.).

But I'm open to edification on this point. :)

Guest korekore1
Posted (edited)

double post

Edited by korekore1
Guest korekore1
Posted (edited)

basically its the full charging/discharging circles that do the job.

 

And by charging/disharging circles i mean

 

1)fully charge

2)delete battery stats

3)fully discharge with no plugging in in between

4)fully charge.

 

Thats why apps like ''battery calibration'' work.They guide you throughout the process and automatically delete the file too. (if that matters)

 

The circle just ''normalizes'' the battery,nothing magical about it.

 

People that say ''that's a myth'' probably don't understand what these circles do to the battery.They hear of battery calibration and they say ''it just deletes the batterystats file and that doesn't do anything''

 

Of cource it doesn't do anything by itself,its the circles that do the job.

 

its like cleaning an old barrel with old stuff sitting inside that don't let the barrel get fully filled.Anyway,just an analogy

 

i can't get more technical about it

Edited by korekore1
Guest dalyer
Posted

Thanks but it still doesn't add up to me and - no offence - your post doesn't really explain it.

And as far as I know deleting the batterystats.bin file manually or using an app seems to be pointless since it gets reset on a full charge to 100% anyway.

There seems to be a large FUD factor about anrdoid battery calibration and I've yet to see a plausible explanation as to how and why it works.

Guest korekore1
Posted

Thanks but it still doesn't add up to me and - no offence - your post doesn't really explain it.

And as far as I know deleting the batterystats.bin file manually or using an app seems to be pointless since it gets reset on a full charge to 100% anyway.

There seems to be a large FUD factor about anrdoid battery calibration and I've yet to see a plausible explanation as to how and why it works.

well i don't know exactly too,but whenever my phone did that crazy power offs at 10% or whenever i had those vertical lines on the screen that freeze the phone,this method worked 100% .Many people say that whenever you change a rom you should do that procedure and i agree,even thought i don't do it often because i change lots of roms

Guest rista1
Posted

Can someone who has installed the new version to share impressions and differences with the previous

version

 

Posted

Lithium batteries have no memory effect. So full charge and full discharge doesn't do anything. It s an urban legend.

Also, this file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."

It has no impact on the current battery level shown to you. It has no impact on your battery life.

Guest dalyer
Posted

So Android "battery calibration" is pointless and only placebo effects result from it?

Posted

You do not calibrate battery. Software that follows battery consumption gets calibrated.

One of the biggest factors in guessing capacity is battery voltage.

Problem is that the guessing is not a straightforward thing.

 

If you have a fully charged battery it has, lets say 4.3V

4.3V = 100% - thats easy

Then you start a FHD video for 10 minutes and stop and measure voltage

Now you have

4.1V = 90% - thats easy, too

 

But, after 5 minutes you can read 4.12V and the phone won't show 92% then, you can bet it won't :)

 

If it would show that, we would never have wrong info about capacity :D

Guest korekore1
Posted (edited)

Lithium batteries have no memory effect. So full charge and full discharge doesn't do anything. It s an urban legend.

Also, this file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."

 

This conversation has been done so many times and still there are people who repeat the same things they heard down the android street.

There are people who say and there are people who do and then say.

All these people who had successfully fixed their bad battery behavior or the screen freeze issue with this method are not crazy and they did not had any placebo.They are people who first did and then said.

 

You can believe anything you want.But I believe only what i see and the calibration method written above works.

 

Thats a fact,not a comment heard on a thread.

 

Anyway,this is not the thread to discuss this further..

Edited by korekore1
Posted (edited)

Sorry but a Google's engineer's statement is more reliable than a bunch of android users opinions without the tech background. But it's not such a thread so stop the battery wars here and stay in the topic.

Edited by Guest
Guest dalyer
Posted (edited)

Last word from me on this.

I have never seen a plausible explanation of why battery calibration is useful.

If anybody has one please post or link to it.

The plural of anecdote is not data. :)

Edited by dalyer
Guest korekore1
Posted (edited)

you are just repeating things you heard.I'm just reporting things me and others do.There is quite a distance between hearing and doing..!

 

Goodnight!

Edited by korekore1
Guest dalyer
Posted

you are just repeating things you heard.I'm just reporting things me and others do.There is quite a distance between hearing and doing..!

 

Goodnight!

 

No - I've also DONE this stuff and saw no difference.  :mellow:

Guest slime00
Posted

Could you please stay on topic guys? :)

Phiber Optik, what kind of problem is it?

Guest korekore1
Posted (edited)

seems that 3g signal is fine,the average dBm is the same with other roms i tried.

It just displays 1-2 bars less than other roms.So its just a graphical bug i guess

Edited by korekore1
Guest Hormon
Posted (edited)
Cleaning the sd card is not working properly. After formatting the card shows the clear, when connected to the PC still can see all the data on the card but as damaged.
I checked a few times.
What application do you use to install the application on the external SD memory?
Edited by Hormon

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