Why Features Security Languages Download GitHub

Allwinner H616 Custom Rom Upd • Easy & Free

Native Windows app. Dark by default. Remembers everything you had open. No telemetry, no login, no nonsense.

Download for Windows View source

v1.2.0 · ~2 MB · Windows 10/11 · GPL-3.0

Program.cs
config.json
notes.md
1using System;
2
3namespace Caret;
4
5class Program
6{
7 static void Main(string[] args)
8 {
9 // just opens. no splash screen. no tip of the day.
10 Console.WriteLine("hello, world");
11 }
12}
Ln 10, Col 42  |  4 selected C#  ·  UTF-8  ·  CRLF  ·  100%
Background

Why build another text editor?

In 2025 the Notepad++ update infrastructure was compromised. That was the push to finally write something from scratch — something small, something we could read top to bottom and actually trust.

Caret is built with C# and WPF. It's a single executable. No plugins, no extension marketplace, no auto-updater phoning home. You download it, you run it, you edit text. That's the whole deal.

It won't replace your IDE. It's not trying to. It's the thing you open when you need to look at a log file, tweak a config, jot something down, or write a quick script. It should open before you finish clicking.

Allwinner H616: The Custom ROM Upgrade — A Complete Story

Final Checklist for Success

By following this guide and taking the necessary precautions, you can successfully update a custom ROM on your Allwinner H616-based device and enjoy new features, improved performance, or a refreshed user experience.

Security Vulnerabilities:

Factory ROMs often ship with "test keys" and wide-open ADB (Android Debug Bridge) ports, making them inherently insecure out of the box. Available Custom Software Solutions

  1. PhoenixSuit will begin formatting the flash.
  2. A progress bar will appear: 0% -> 25% (Erasing) -> 75% (Writing) -> 100% (Verifying).
  3. Do NOT unplug the cable during this process. A failure here (red bar) usually means a bad USB cable or wrong short pin.

U-Boot

Allwinner H616 Custom Rom Upd • Easy & Free

Allwinner H616: The Custom ROM Upgrade — A Complete Story

Final Checklist for Success

By following this guide and taking the necessary precautions, you can successfully update a custom ROM on your Allwinner H616-based device and enjoy new features, improved performance, or a refreshed user experience.

Security Vulnerabilities:

Factory ROMs often ship with "test keys" and wide-open ADB (Android Debug Bridge) ports, making them inherently insecure out of the box. Available Custom Software Solutions allwinner h616 custom rom upd

  1. PhoenixSuit will begin formatting the flash.
  2. A progress bar will appear: 0% -> 25% (Erasing) -> 75% (Writing) -> 100% (Verifying).
  3. Do NOT unplug the cable during this process. A failure here (red bar) usually means a bad USB cable or wrong short pin.

U-Boot

Languages

Syntax highlighting for the languages you actually use.

Detected automatically from file extension or content.

C# C C++ Python JavaScript TypeScript Java HTML CSS XML JSON SQL PHP PowerShell Markdown Rust Go Kotlin Swift Shell / Bash YAML TOML Dockerfile Diff / Patch + more
Keyboard

Shortcuts you already know.

Standard keybindings. No custom chord system to memorize.

FindCtrl+F
ReplaceCtrl+H
Go to lineCtrl+G
Duplicate lineCtrl+D
Move line upAlt+Up
Move line downAlt+Down
Toggle commentCtrl+/
Zoom inCtrl+Scroll
New tabCtrl+N
Close tabCtrl+W
Backup ManagerCtrl+B
Get it

Download Caret

Windows 10/11 · x64 · Free and open source.

Installer

Desktop shortcut + right-click integration

Download .exe

Build from source

Requires .NET 10 SDK

dotnet build