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Storage is shrinking despite having apps installing to SD card.

Ditch the whole idea of moving apps to the SD.
It was a bad idea to begin with, for a myriad of reasons.

A device that old (any device, really- even modern) will only function well with as much open memory as it has RAM.

Keep your used memory at 70% or below, and put your personal media (pics, videos, documents) on the SD card.

Does connecting to computer via USB reduce smartphone's battery lifecycle?

Well yeah, that's going to affect the overall lifespan of the battery but it's also very dependent on how long you're leaving your phone plugged in to that USB port, and there are a lot of variables.
-- Which type of USB port you plug into is a factor -- USB 3.x ports can supply more amperage than USB 2.x ports
-- A typical USB cable is going to have wires/connectors dedicated solely to power transfer and to data transfer so your phone is always going to automatically link itself to receive power, essentially a lower-level firmware function, but data transfer connectivity is more of just a software thing (how your Android OS is configured and if you, the user, initiate something like file sharing or remote access).
-- Your phone's battery has a set number of life cycles and that's a given. A very loose, very generic number that's commonly used is 500 or so. But each time you charge your phone, that's not just minus one life cycle (i.e. 499), it's an accumulative matter so if the battery gets a 25% charge every time you plug it in than it takes four times to equal one life cycle down (4 x .25 = 1), or if only 10% each time than it would take 10 times to be the equivalent of one life cycle down. Whittle away one life cycle at time from that 500 number and that's approximately how long before your battery will last. Keep in mind while every battery has a life cycle limit, that 500 number is more of a low-balling estimate. Most will last longer, but that's also dependent on how your charge your phone. If you run it down to single digits of a charge each time, that's going to drastically reduce it's overall life.
-- A good source on learning about batteries in general is the Battery University site. Its articles get updated on a regular basis so you're much less likely to read out-of-date or inaccurate facts there, something that's often a big problem online.
https://batteryuniversity.com/articles

So you need to take in all the variables involved that apply to your particular situation, and then see if it's actually something to worry about. If you do a lot of file transfers and leave your phone plugged in for long periods of time, it may be something to consider. If it's just a matter of a few minutes each day, the numbers don't add up to anything significant.

Hook, Line and Sinker: the book

I agree. There should be some kind of Library of Congress for images. Maybe some day there will be. It shouldn't be this hard to find a book. Maybe I'll get lucky at some garage sale.
Considering how obscure it is, if I were you I'd just spend four bucks and buy one on Amazon. I think your odds of stumbling upon it at a garage sale are about as remote as walking on the face of the sun. :o

Complains about Android Studio 2020.3.1 patch2...

Hi everyone,
My name is Stephane,
I'm 54 years old and I code since 1992.

ASM, C, COBOL, SQL, Visual Basic, Java, Python for my rpi4,
a little bit of C++ and C# and HTML, PHP, Javascript, CSS.

I learned VB with win95 and early Soundblaster card.
The introduction in the visual programming era was astonishing.
(early voice recognition milestones btw)
At that time, It was war between Soundblaster VS AdLib.

I worked on a Risc6000 and C language. The lab was ENORMOUS !!!
24 inches crt on all desk like 10 of them, The heat was elevated I would say.
X was the only window manager in Unix available. It's was 1997~.

so IDE's... I know a lot.

Is there someone that ever used Microsoft C IDE or Borderland Turbo C
in this forum :) let me know.

So complains below.

Android Studio
Artic Fox 2020.3.1 patch 2
(coding in Java for API 23)
I7 labtop with 16gb ram
hp zbook 15

number 1. I am working on apps that use internet/network resources...
so each time I start a new "empty activity", I must modify
AndroidManifest.xml to include

<uses-permission blabla ...

Sorry but I have to do the mod. each time ?
that's a nono would you say?.

any suggestion ?

number 2. Simple url call to a php...
Documentation is a nightmare !
We can go back to 2015 in youtube or websites
about OkHttp and URL object declaration.
I even tough that buying a book about Android Studio
was a good idea... du!
I even tried the option cleartext in AndroidManifest and an OBSCURE xml
in res/xml/ folder referenced by Android Manifest file.
So I need a way to make sure I'm using the
good information for my version of Android Studio (I would say current)
and the API and my goal for my project.

URL url = new URL("http://somesite.com?zetestparam=temp")

I tried in Java and Kotlin, try-error for 3 weeks... :( that's enough.
(I uploaded a java source file example)

number 3. Option "alt+enter" auto import resources...
(a bug in my installation ?)

The option "alt+enter" auto import resources when pointing the
mouse in the code window is not available so I need to search
each time for the proper import line of code to insert. Jezz... this is a tough one :(

number 4. The option to copy the project to another folder...
Let's say that you've created a small activity and your would like to branch
in 2...
you cannot simply copy the folder to another place because
the first line in your java source is "package com.something.bla.bla"
Java code / public class declaration must have a single location.

number 5. Kotlin code should highlight in a different color/theme ?
I mixed java and Kotlin. I'll eventually try integrate C ? That's a problem.
In PHP, I can mixe css, html, a curl call, a exec call to a C bin.
that's becoming a problem.

So far, that's my 2 cents of information and requests.
I'm a newb to Android Studio and Java programming.

Like they say in Japanese « Sumimasen » It's my fault
I'm sorry about my long mail
Stephane

Help Huawei y7 prime

I'm facing some problem with my Huawei Y7 prime which can't boot in to the Huawei phone by normal way? because it's keep coming back to reboot system,wipe data/reset to factory reset, wipe cache partition?so is there any solution for me to make it back to factory reset again by the mean of time, please let me know if there is anything else I can do yeah.it would be great of help.thanks.

how did this happen? was it all of a sudden? after an update?

you most likely will have to flash a firmware update....i dont have your phone so i'm not experienced with it, but i did find this for you:
https://mobilereset99.com/flash-file-huawei-y7-prime/

How to Connect external M.2 nvme ssd drive with OTG usb hub

Question How to Connect external M.2 nvme ssd drive with OTG usb hub

I want to take constant nandroid backup of system userdata boot sdext2 external micro card through twrp recovery or any imaging software and want to store apk data backup and nandroid backup in the external USB hdd

Some expert suggested me OTG usb hub and connect external hdd...new smartphones have type C power connector and have 15w to 25w powe connector aa old mobiles have different connectors and only supports 1.5 w to max chargers.

Aa usb hub amplifies and balance power between multiple connectors

My queries

1. Can I connect type c usb hub to old 3w connectors

2. As external usb hdd or ssd casings don't have any external usb power how much power wattage it need and how much power do usb hub gives

3. I want to purchase new external hdd or ssd I prefer to invest for samsung evo plus 980 nvme M.2 gen4 which give 3.5 Gbps read write speed now I can us a external m.2 casing but can I connect that m.2 casing and get enough power wattage to run it...I hope casings may have some not any external power. Any solution help advice opinion trick to connect device. ( I may use that m.2 drive in my new desktop build later.

3. What throughput bandwidth read write speed do OTG hub gives on devices

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