The Powkiddy A20 is a portrait-style handheld that, despite its powerful Amlogic S905D3 chip, suffers from a lack of dedicated custom firmware (CFW) compared to its peers. While the hardware is capable of impressive N64 and PSP performance, the user experience is hampered by a clunky, proprietary Android-based interface. Custom Firmware Status
As of late 2024 and early 2025, there is no official community-supported custom firmware (like ArkOS or JelOS/ROCKNIX) specifically for the Powkiddy A20.
Default Software: The device ships with an Android 9-based "Powkiddy Box" (Pandora's Box style).
Community Workarounds: Users typically bypass the stock frontend by installing a custom Android launcher like ATV Launcher or DIG, though setting up RetroArch remains a manual, often frustrating process.
The "Frustrating" Gap: Unlike other Powkiddy devices (e.g., the RGB30 or RGB20S) which have mature ArkOS support, the A20 requires significant tinkering just to fix basic issues like broken button mapping. Hardware Performance Review
CPU/RAM: The S905D3 quad-core processor (1.9 GHz) and 2GB LPDDR4 RAM are its biggest strengths. It noticeably outperforms standard RK3326-based devices in N64 and PSP emulation.
Display: A bright 3.5-inch 640x480 IPS screen with good viewing angles. However, it is not laminated, leading to a visible gap between the glass and the display. powkiddy a20 custom firmware
Build Quality: Often criticized as feeling "cheap" or "plastic". The buttons are stiff and clicky, and the analog stick is a non-recessed Switch-style slider that lacks L3/R3 functionality.
Battery: The 3000 mAh battery offers roughly 3 to 4 hours of gameplay, which is lower than many modern competitors. Summary of Pros and Cons
Superior Power: Handles N64 and PSP better than many budget vertical handhelds.
Software Frustration: Stock Android firmware is poorly translated and difficult to navigate. Good Screen: High-resolution 640x480 IPS display.
No True CFW: Lack of a "flash-and-play" custom OS like ArkOS or EmuELEC.
Connectivity: Features internal Wi-Fi, Bluetooth 5.0, and HDMI out. Poor Controls: Stiff D-pad and "loud" clicky buttons. The Powkiddy A20 is a portrait-style handheld that,
For a more comprehensive setup, most users refer to the Retro Game Corps Guide to clean up the stock Android experience. A New Portrait Handheld with Power! - PowKiddy A20 Review
Review: Breathing New Life into a Budget Handheld – The Powkiddy A20 Custom Firmware Experience
The Powkiddy A20 is an enigma in the budget handheld market. On paper, it boasts impressive specs for its price point—dual sticks, a decent screen, and a form factor that mimics modern console controllers. However, like many budget devices, it is often hampered by restrictive stock firmware, a confusing user interface, and subpar default settings.
For the enthusiast community, the release of custom firmware (CFW) for the A20 was the moment the device truly launched. Here is a review of the Powkiddy A20 custom firmware experience, examining whether it fixes the device's shortcomings and makes it a must-own.
The most active development right now is happening on the EmuELEC fork for the A311D chipset. The specific build you want is labeled EmuELEC-Amlogic-a311d.a20-4.6. Here is what this firmware offers specifically for the A20:
Patched Kernel: The CFW introduces a custom kernel with performance governor enabled by default. It also unlocks the fan controller, allowing you to set a custom fan curve using a script (no more melted fingers on the left grip). Dolphin (GC/Wii): The CFW uses a Vulkan backend
Optimized Cores:
Hotkey Fixes: On stock firmware, the volume keys sometimes conflict with RetroArch hotkeys. CFW remaps these so that Select + Start properly exits games without changing your volume.
Wifi > Internal Adapter and reboot twice.Upon boot, you will land in EmulationStation.
Start -> Network Settings. This is required for scraping box art.Controller Settings. Set your "Hotkey Enable" button to Select. Set Start as the exit combo modifier.F1 to go to the file manager, then Tools -> Terminal). Type echo 100 > /sys/class/thermal/cooling_device0/cur_state (This sets fan to 100% for testing). Save a script for auto-control later.As of mid-2024, there is no dedicated, mainstream custom firmware (like AmberELEC, ArkOS, or JELOS) specifically built for the Powkiddy A20.
Why? The A20 uses an outdated 32-bit Rockchip RK3128 with only 1GB of RAM. Most developers have moved on to RK3326 or newer chipsets. However, all hope is not lost.
Options > Advanced > Screen Rotation in RetroOZ. Set it to 1 (or 3). If using ArkOS, edit the boot.ini file on the boot partition and change rotate=0 to rotate=2.Custom firmware for the Powkiddy A20 can yield significant improvements in usability and emulation capability, but it requires careful work on the bootloader, kernel/device tree, and root filesystem. The safest path is SD-bootable rootfs modifications and iterative testing; full eMMC flashing should only be done after thorough backups and successful SD testing. Use community builds where available, back up original firmware, and keep a tested recovery image.
If you'd like, I can:
(End of article)