Strange there are some on the XDA but unofficial.
You need play services probably. Not sure you can install only one so you most likely need GAPS, try Nikegaps or find some other GAPS providers. You might need root or adb
If you have USB debugging on then yes. If not try to see if you can mirror display with USB and a TV/monitor. If that doesn’t work a USB mouse will have to do if you know that layout of your phone. A keyboard could also work for the pin. I always suggest leaving USB debugging enabled and paired to your computer so in such cases you could just do
adb pull /storage/emulated/0(or another number if you have different users or work profile /path/to/desired/location
This way you’ll pull all the data from everywhere and delete what you don’t need. With USB debugging enabled you could also use SCRCPY, it’s a neat tool that’ll mirror your screen and you can control the phone with computer mouse and keyboard. If you do want to try and enable it’ll be in Developer options/settings, if you have them enabled if you don’t you gotta press on Build Number in your about phone section in settings.
If your rooted with magisk try nikgaps. Also you could try installing LineageOS with GAPS
No you dont need root to flash, but if you install magisk you need to flash the patched boot image therefore have bootloader unblocked which is needed. What I meant is that if OP decides to root with Magisk it’ll just be easier to install Lineages OS(if his phones are supported) than to search for the firmware file to extract boot image since Lineage offers it already extracted
Can you root? If so then why not try Lineage OS. The phones seem old and a lighter OS wouldn’t hurt. For battery you can try ACCA (requires root) or Accubatery Also depends on region but 3G gets taken down. WiFi and internet are dependent by tower distance and by how many WiFi clients and networks are around. Try WIFI widget handy tool. Cpu-z to check clock and thermals, ram usage and clocks. I do recommend installing Lineage OS and there are magisk modules if you’re willing to try, they might work they might not.
For the camera give open camera a try. Also try disabling animayion in developer options, you install cpu-z and see if the procesor clocks well. Apart from this I dunno, did you installed it correctly? I dont think Lineage 20 runs on android 14
Most likely because of android battery saving. Check this site . I might be wrong but that looks like Lineage OS? Try disabling battery saving for that app in settings
Try acca and acc. Dunno if will help but it’s good for charge limits. It van be hit or miss though. If your going to try change acc versions if it doesn’t work
I do understand why you might want to go over to Linux phones but as they are now it’s not worth it.
You can can flash another ROM such as Lineage OS with root and outmatch any Linux phone. There’s also termux if you want a terminal emulator and android has a shitlload of apps, some worse some better, but you have them. Don’t get me wrong Linux is great but Android has too many advantages in the mobile space. Anyway that’s just my opinion
I use magisk it’s open source, systemless, has option to hide root from other apps and has option to update the boot image after an OS update. You can get modules from the magisk repo. The app I use are viper4android and iconify. There are more but they don’t come to mind, a must have is bootloop saver. There’s also shizuku that is accepted by some of these apps but I haven’t really checked it out. It also depends on OS and if you can unlock bootloader
Isn’t Android 15 gonna make it hard to sideload apps or something?