But the thread mentioned an exploit: "CID 15" or "Shop Samsung" models. Mine wasn't one. After two days of frantic Googling, I found a guide. It wasn't an unlock; it was a bypass using a leaked engineering kernel. The risk: bricking the phone into a permanent "Secure Fail: Kernel" state.
Next, . This is the custom recovery that lets you flash ROMs. I downloaded twrp-3.6.0_9-0-noblelte.img.tar and flashed it via Odin.
I had downloaded (Android 12L) and NikGapps (Google Apps) on my PC. The Note 5's USB port was finicky—one slight movement and the connection dropped. custom rom samsung note 5
The custom ROM journey on the Note 5 wasn't about getting a new phone. It was about rebellion against planned obsolescence. For 3 glorious months, a 7-year-old phone ran circles around budget 2022 phones. It was frustrating, terrifying, and utterly glorious. Would I do it again? In a heartbeat. Just... with a shorter USB cable.
I wanted to throw it away. But then, I saw a glimmer of hope on XDA Developers: "LineageOS 19.1 (Android 12L) for Samsung Note 5 - Unofficial." But the thread mentioned an exploit: "CID 15"
The journey began.
I used a (hardware JTAG) to revive it, but the cost was more than the phone's worth. I buried the Note 5 in a drawer, but this time, with honor. It wasn't an unlock; it was a bypass
The screen went black. No download mode. No recovery. Nothing. The Note 5 was a hard brick—the eMMC chip corrupted.