I found an old Samsung Note 4 of mine which I flashed a few years ago (Lineage OS if memory serves me right) and which I wanted to reuse for my son.

It is unfortunately stuck in a boot loop:

1. If booted normally, it goes though the "Samsung Galaxy Note 4" initial screen (black and white and then after some time there is a vibration and it reboots (in a loop)

2. If booted with HomePowerVolume-Up, a blue `RECOVERY BOOTING...." appears together with the Samsung Note 4 screen above, then it reboots (in a loop)

3. If booted with HomePowerVolume-Down it goes into Download Mode

I tried to flashed the latest TWRP (3.2.3) via Odin - no changes

What is the reason of such a boot loop? Is there a bootloader missing? (I found a bootlader and flashed it, the flash was successful but the problem is still the same)

My main goal is to boot into TWRP in order to wipe and reinstall a new Lineage OS

I found an old Samsung Note 4 of mine which I flashed a few years ago (Lineage OS if memory serves me right) and which I wanted to reuse for my son.

It is unfortunately stuck in a boot loop:

1. If booted normally, it goes though the "Samsung Galaxy Note 4" initial screen (black and white and then after some time there is a vibration and it reboots (in a loop)

2. If booted with HomePowerVolume-Up, a blue `RECOVERY BOOTING...." appears together with the Samsung Note 4 screen above, then it reboots (in a loop)

3. If booted with HomePowerVolume-Down it goes into Download Mode

I tried to flashed the latest TWRP (3.2.3) via Odin - no changes

What is the reason of such a boot loop? Is there a bootloader missing? (I found a bootlader and flashed it, the flash was successful but the problem is still the same)

My main goal is to boot into TWRP in order to wipe and reinstall a new Lineage OS

Note: Following up on the comments and answer, I wanted to clarify a few things:

• the Note worked fine with Lineage OS installed
• it was then left aside
• it was then (not sure here) probably wiped via TWRP (the only thing sure is that at most the wipe functionality of TWRP was used, to do a factory reset). This is new information obtained after the one who had the phone in hands told exactly what she has done.
• and then the problems started

This is to make it clear that it used to have a functional TWRP and a functional Lineage OS, then a wipe in TWRP occured, and then it cannot boot to TWRP (or Lineage)