[Samsung Galaxy S10/S10+/S10 5G/E Cross Device Deve] metaxda:
After losing a day, trying to figure out my issues,

eg. phone "boot looping", entering download mode was not always consistent, etc.

I have figured out a few things,

and running iodéOS for the last few days now.

Here are some findings:

• Power Off

To power off, I must have a powered USB-C cable plugged into the phone,

and then press POWER + VOLUME DOWN buttons for ~7 seconds.

Once I see the charging logo, for a few seconds, I can let go of the buttons.

• Bootloader Mode

Assuming my Recovery is functional, to get into Download mode,

while the phone is off, plug in USB-C earphones.

( I tried other USB-C cables or OTG, but I did not get consistent results)

It only worked for me, by plugging in USB-C earphones.

Then, press continuously on POWER + VOLUME UP + BIXBY buttons,

and keep pressing, until I got to the Recovery,...and then I chose 'Reboot To Bootloader'.

Once in 'Bootloader Mode', I could flash using Odin.

• "Bootloop" Issues

My issues with the iodéOS not booting correctly, started because of my need to access Play Store.

This was my successful interaction with MicroG and a de-Googled ROM,

after trying in other years, to go down this path, but having a 'spare phone' now, meant I could pursue this objective.

I was trying to download some Apps (eg. a paid app that has train timetables) through Aurora Store,

Since I had no experience with Aurora Store before,

I saw the price of the app (which I had paid for many years ago already).

I panicked, and without clicking on the app, I shutdown the phone

and flashed "Phonesky_magiskv2.zip" (from Page #1 of this thread).

This was a Magisk module, since I did this a few times,

I learnt/discovered that this module didn't play nicely with the ROM,

no matter which Recovery I had (LOS-based or TWRP).

• Lygisk Root

So, I stopped flashing "Phonesky" (which was probably expecting Magisk)

and I proceeded with iodéOS as normal, flashing it with the LOS recovery.

I read more into Magisk vs Lygisk, and learnt more about

Samsung Exynos phones which have this encrypted /data folder,

which is what Lygisk is meant to address,

I got the canary release and it's been stable.

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My issue now with iodéOS ROM , is there are certain paid Apps from Play Store, which I need.

Some of these apps, need to connect to the Play Store for licence verification,

eg. Titanium Root Licence Key.

I tested my paid SD Maid and SD Maid Pro apps through Aurora Store,

and they work, but Titanium Backup does not.

I restored Titanium Backup Pro [Ti Pro] (with the Pro Key) through Swift Backup (which was through Aurora Store), on the iodéOS, but still, Ti Pro cannot check the licence and won't run.

Ti Pro was my favourite before I started facing issues on newer Android,

as I also use Swift Backup for troublesome Apps these days,

but there some things that I still like about TiPro.

I've also discovered AppDash (which looks great by the way, by a well-respected XDA developer ;) )

and installed that successfully via Aurora Store in iodéOS .

However, I'm still looking for advice from anyone,

who can run paid PlayStore Apps on iodéOS.