How To Custom Flash Your Rg300 For Maximum Performance

How to set the Path for FBA games on RG300? YouTube from

The RG300 is a retro handheld game console released in 2021. It has excellent hardware and a great library of games, but the stock firmware leaves a lot to be desired. Unfortunately, the RG300 doesn’t have an official upgrade path to the latest version of the operating system, but you can custom flash it with the latest version of the firmware. This guide will show you how to do it.

Before you begin, make sure you have the right tools and components. You’ll need a USB-C cable, a microSD card, and the appropriate drivers for your computer. You can download the latest version of the firmware from the manufacturer’s website. Once you have all the necessary components, you can begin the process.

Step 1: Preparing the MicroSD Card

The first step is to prepare the microSD card. Insert it into your computer’s card reader and format it using the FAT32 filesystem. Once the card is formatted, you can copy the firmware file to the root directory of the card.

Step 2: Connecting the RG300 to Your Computer

Next, you’ll need to connect the RG300 to your computer using the USB-C cable. Once the device is connected, your computer should recognize it and install the necessary drivers. If it doesn’t, you may need to install the drivers manually.

Step 3: Flashing the Firmware

Once the RG300 is connected to your computer, you can begin the flashing process. To do this, launch the flashing utility that comes with the firmware file. Select the microSD card as the target device, then select the firmware file and click the “Flash” button.

Step 4: Finalizing the Process

Once the flashing process is complete, you can safely disconnect the RG300 from your computer. Put the microSD card back into the device and power it on. The RG300 should now be running the latest version of the firmware.


Flashing your RG300 with the latest version of the firmware can give you a major performance boost. By following this guide, you should be able to flash your device without any issues. Of course, if you run into any problems, you can always ask for help in the official RG300 forums.

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