[Galaxy S3 Neo Original Android Development] helloyello:
I've been using LOS16 until some days ago, being reluctant to try LOS17.1, given how "subversive" the switch from LOS16-LOS17 was done (and I was missing @Humaxxx ;) ). However, it looks working, but might need some fine tuning.

First the bad news:

- the issue with the WiFi driver is still persisting from LOS16 - if WiFi is connected on 2.4GHz and the BT is active, connected to a BT Headset and in use during a normal GSM call, it's enough to send a ping from the phone (ADB or a console) to the router or Internet (or initiate some traffic manually - update weather) and the WiFi connection bounces (disconnects - reconnects). This doesn't happen if the phone is connected on WiFi 5GHz. I reported this in the LOS16 thread some time ago, but at that time I thought it's only happening in VoIP applications while on 2,4GHz and using BT audio, it turns out a ping is enough to cause the issue. And, it looks like Wifi 2.4GHz and BT Audio (BT is also on 2,4GHz and from the same chip) cannot get used both at the same time, WiFi bounces.

- then BT Audio is still suffering interrupts randomly- loosing the microphone output, still able to hear the other party I'm speaking with. I noticed that this happens more often while moving fast around the phone (phone on the desk) or in narrow places like corridors or room corners- reflections/interference? Should be handled properly by the driver/firmware. It doesn't happen on stock ROM (stock driver/firmware).

- the LOS loading is faster, but as soon as it reaches the SIM PIN dialogue, after entering the PIN, it hangs a few dozen seconds. By the time it shows the unlock screen, the screen is already timing out - more of an annoyance.

- on the first run Android didn't copy my contacts from the SIM Card into the phone memory, I had to use an external App for this

- TWRP twrp-3.3.1-1-s3ve3g (the last one) is not compatible with Android 10, thus, it creates the backup OK, but it corrupts the name of the SDCard (corrigible manually - reformatting the SDCard on an external system) and what's worse it soft bricks the phone after restoring a backup. But there is a workaround - just tested it now and it's 100% working on the S3 Neo. You need to fix the root filesystem after the restoration, and someone has packed a simple script for doing so into an image that you need to install immediately after restoring the backup (don't exit TWRP!) and BEFORE the first reboot:

fix_rootfs_label

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

and the XDA Thread from where I got it:

https://xdaforums.com/t/rom-i9190-i...17-1-for-s4-mini.4045147/page-5#post-82015861

Some other threads discussing how TWRP cannot work (yet) with Android 10:

https://xdaforums.com/t/softbrick-a...ineageos-17-1-galaxy-note-3-sm-n9005.4229291/

https://xdaforums.com/t/twrp-restore-and-lineage-17-1.4161435/

https://xdaforums.com/t/full-nandroid-backup-solution-for-lineageos-17.4201221/

https://xdaforums.com/t/tips-for-preserving-twrp-from-pie-to-q.4179385/

- some cosmetics: the trebuchet icons are HUGE and too close to each other on the Homescreen. When choosing some more condensed Grid, it won't apply to the applications drawer, but only for the Homescreen (really dumb)

- then, for the Dark Theme - the black background for the Settings, Phone App, Messages, Application Drawer is actually dark grey and not "OLED-friendly" pure black

- oh, just noticed, the notification LED doesn't change the color while the phone charges over 80-90% if the screen is off. Only after waking up the screen, then the LED changes the color

Now the good news, LOS17.1 looks stable and working fine - using it extensively for a few days now - cheers to the devs!. Worth mentioning that I started with lineage-17.1-20210503-nightly-s3ve3gxx-signed.zip and I flashed it over LOS16 - like:

- booted the phone in TWRP

- went on Wipe -> Format Data

- then again on Wipe > Advanced Wipe -> and wiped system & data & cache & Dalvik cache

- then got into the Install menu and chose the lineage-17.1 file from the SDCard and flashed it & rebooted

- that's it

Finally:

- I'm still restarting the phone after a full charge, as it was advised under LOS16, not knowing if the issue with the proper sleep/doze mode was resolved in LOS17.1

- there was a post in this thread where a user complained about "Slow charging". I saw that status message myself after the first LOS17.1 reboot, but it vanished after I started configuring the phone and performing some more reboots. Now it says "charging". I guess it's some default thing from Android 10 - just telling that the phone isn't capable of fast charging.

- then , recently there was some exchange related to the boot loader version required for LOS17.1. Well I suppose it's the same required for LOS16 - the I9301IXCUARA1 from the Greek ROM:

I9301IXCUARA1_I9301ICOSARA1_I9301IXXUAPG1_HOME.tar

I have this boot image version from before I started using LOS16. Besides, you might need to flash that stock ROM several times - or use some App to check if the boot was updated after the first flashing. And, that Greek ROM is heavily bloated (COSMOTE mobile operator), but that shouldn't bother anyone, it's just useful for the latest boot loader, anyway you flash LOS17.1 over it :)