Features:

- Overclock flex mod for Game Boy Advance
- Provides easier wire free installation
- up to 170% clock speed increase
- Compatible with IPS screen mods
- Medium difficulty level, soldering & crystal removal required.

Description:

The robot_retro GBA overclocker flex mod provides a simple way of overclocking or underclocking your Gameboy advance.

The installation process has been simplified by eliminating the manual wiring process (with the exception of a single optional LED indicator wire).

NOTE: Whilst the wire free installation makes it much easier, it should be noted that the crstal will need to be removed, ideally with hot air.

Highlights:

- Capable of over and underclocking to 30%, 50%, 75%, 130%, 150% or 170% of base clock.
- Increase speed = Press Start and Up
- Decease speed = Press Start and Right
- Easy flex installation with optional wire link to LED DL2A. 
- Power LED will blink faster when overclocked and slower when underclocked.  Base speed is a solid green LED.
- Top speed can be set to 170%, 150% or 130%

The regular install has a maximum speed of 170%.  This is suitable for the stock LCD, Funnyplaying v2 or Hispeedido v2 (non-laminated) kits.

If using the Hispeedido Laminated v5, bridge solder jumper S1 to limit the speed to 150%.

If using Funnyplaying 3.0 Inch Laminated, bridge solder jumper S2 to limit the speed to 130%.

Other Features:

Very low power consumption.  Measured as <15mA using the Nordic Power Profiler Kit II.
Accurate base clock (4.194Mhz).  Measured as >0.01% accurate. 
There is will no difference between this mod and the original GBA crystal at stock speeds.

Installation:

Remove the GBA crystal.  Recommended to use a hot air station for this step.

Install the flex as per photos. 

Solder the points shown within the pink circles (total of 6 solder points).  It is recommended to use flux for this step.

OPTIONAL: Run and wire between the flex and test point DL2A (both shown inside the yellow circles).  This will make the power LED blink faster/slower when over or underclocking.

Speed Limiting:

- Bridge solder jumper S1 to limit the speed to 150%.
- Bridge solder jumper S2 to limit the speed to 130%.
- Developed in collaboration with RJS FPGA