Does zenfone Max Pro M1 support smart battery management whereby
it charges/recharge the battery at optimal timings?

Secondly, does it come with a 128GB storage option (not via microSD)

As batteries are built into mobile phones nowadays & to replace them
requires it to be brought to the workshop who has the tools to change
them,  I'm thinking of getting battery casings so as to reduce the
number of charge+discharge (that is what typically reduce the lifespan
of batteries.

Specifically I'm looking at Galaxy note 9 ie batteries like those below:
https://www.amazon.com/dp/B07GB5R27M/ref=psdc_7073958011_t1_B07H3256JB
https://www.amazon.com/gp/product/B07H3256JB/ref=ox_sc_act_title_1?smid=A2QAZ8RQ4KWQ44&psc=1
https://www.amazon.com/dp/B071NWVT9M/ref=psdc_7073958011_t2_B07H3256JB 

Q1:
Am I right or mistaken?  With above battery cases, will the phone  charge
directly from the casings' batteries rather than charging from the built-in
batteries?

Q2:
Or it'll shorten the built-in battery's lifespan instead as the casings will
charge the built-in battery whenever the built-in battery goes down by
1-2%, thus maximizing the number of charge+discharge cycles?

Q3:
Any other ways to increase life span of built-in batteries?  Understand
we should let it discharge till almost 1-2% before charging it up again
& we should always charge it to the max of 100%: this is a known
good practice but often this is rather inconvenient & risk discharging
completely, resulting in phone being powered off, missing crucial
calls/messages.

What I do know is if laptops are frequently being left connected to
AC or even an external powerbank (Hyperjuice, Vinsic…

I need to take a backup of Whatsapp from an iphone 6s , and another backup from an Android phone; and merge the 2 backups in one Whatsapp on an android phone ;
How can this be done ?

My phone was linked to a google account and contacts were sync fine. The sync has been frozen for a while and phone won't sync anymore, so I removed Google account from Android. But when added again the sync menu now DOES NOT show CONTACTS ; so I am unable to sync my contact because it is not there to select.

I tried to restart phone several times,
I tried to disable/enable the Google Contact system app,
even cleared its cache ... still the phone is linked to a Google account, but is not showing Contacts Sync option

Got this screenshot in a great reply to a question.

It is from Android 9, Lite.  Going by the caption at the top of the screenshot screen "Encryption & credentials", seems like there's a setting in the OS called Encryption & credentials.  

I'm using Android 9.  Not Lite.

For some reason, I can't find that same Encryption & credentials setting in Android 9.

What do you think is happening?

Many thanks,

OT

Android Pie emojis seem hideous to me.

Please, Please, PLEASE,  P L E A S E...tell me there is some way on a non-rooted Samsung Galaxy A7 phone to roll them back or to alter them.

Have a new Samsung A7, Android 8.0.0 OS.

Can't see the option for encrypting the PHONE.  

Have encrypted the SD card.

Have set up a PIN & fingerprint sensor unlock.

I recall there was an option to encrypt the phone - had one with my Sasumg J5.

But, can't find the option to encrypt anything beyond the SD card on this phone.

What am I doing wrong?

Many thanks!

OT

I have a Galaxy Note 9 with Android Pie (version 9.0) installed and have an issue with it.

From time to time as most people do I listen to music on my phone with Bluetooth headset. I also have a Bluetooth receiver in the car for hands free calling when driving.

Those aren't an issue in themself, the issue is whenever the phone connects to the Bluetooth device in the car it automatically starts playing the music I was previously listening to. It only occurs with the car device because that automatically switches on with the car so automatically connects. I can even have been listening through USB speakers previously and it will still start automatically when connected to Bluetooth device.

It doesn't seem to start the App that I used (eg Google Play Music, TuneIn radio app or Amazon Music) but I get the play control notification ( << || >>) in the notifications area.

Its easy enough to get rid of, tap the pause and then swipe the notification away. That's if I notice it, it could be that I don't notice and it is potentially streaming music (TuneIn or Amazon Music) using my mobile data, not a massive data usage but shouldn't be happening.

Is there a setting in Android somewhere that I can change to stop music automatically playing whenever I reconnect to a Bluetooth device? Autoplay setting or something.

Thanks
Rob

Say, I have an android Black Berry Key one with Google Backups enabled. I'm after restoring a backup of my call logs from 5 months ago.
How do I go about this? tx Shaun

Hi Experts

Could you point what must to be checked/ configured to make Win 10 recognize again an Android smarttphone using USB?

I guess since the last Win 10 actualization it stopped recognize the smartphone. Amazingly a popup  rapidilly  appear/ disappear and the caracteristic sound occurs, but after that the celular drive doesn't appear at Win Explorer.

The celular's charge is occuring normaly.

Thanks in advance.