Hello Everyone,
I have an original GBA (40-pin model) and I've replaced the original screen with AGS 101 model b screen that I've bought on aliexpress. Both screen and adapter are model b and the small wire from the adapter is soldered to DA1. Everything works perfectly—there is no ghosting or interlace problems but I've noticed that rechargeable batteries last under 10 hours with New EZ-Flash IV. I've decided to measure the current draw to see exactly how hungry is EZ-Flash IV.
Test Results:
GBA + original cartridge = 120mA
GBA + EZ-Flash IV = 200mA in menu and when loading a game into SRAM; around 210-220mA when in game (loaded either from NOR or SRAM), however there were instances when the consumption briefly jumped to 250mA (during animations)
Conclusion:
EZ-Flash IV is very power hungry as it uses 100mA during normal operation—it is almost like you have another GBA on top of the first one. One other thing that I've noticed is that this flash cart is very sensitive to voltage when it comes to writing games to NOR. I only use rechargeable AA batteries and two of those have a bit more than 2.4V, which isn't enough to write the games into NOR—what happens is that it looks like the game is being written to NOR, but when the process completes there is simply nothing there. I was only able to write games to NOR by using GBA power adapter (3V) that's plugged into a wall socket.
One other problem with NOR is that while I can load a game from it while having less than 2.4V (red light on) I can't load savegame properly once I'm inside the game—it loads the savegame with all kinds of graphical artifacts and sound goes awry. If the light on GBA is green (above 2.4V) the savegames load without problems. As the rechargeable batteries relatively quickly drop below 2.4V playing games from NOR is simply not practical for me because of these issues, so I'm sticking with loading them into SRAM on each play session.
I have an original GBA (40-pin model) and I've replaced the original screen with AGS 101 model b screen that I've bought on aliexpress. Both screen and adapter are model b and the small wire from the adapter is soldered to DA1. Everything works perfectly—there is no ghosting or interlace problems but I've noticed that rechargeable batteries last under 10 hours with New EZ-Flash IV. I've decided to measure the current draw to see exactly how hungry is EZ-Flash IV.
Test Results:
GBA + original cartridge = 120mA
GBA + EZ-Flash IV = 200mA in menu and when loading a game into SRAM; around 210-220mA when in game (loaded either from NOR or SRAM), however there were instances when the consumption briefly jumped to 250mA (during animations)
Conclusion:
EZ-Flash IV is very power hungry as it uses 100mA during normal operation—it is almost like you have another GBA on top of the first one. One other thing that I've noticed is that this flash cart is very sensitive to voltage when it comes to writing games to NOR. I only use rechargeable AA batteries and two of those have a bit more than 2.4V, which isn't enough to write the games into NOR—what happens is that it looks like the game is being written to NOR, but when the process completes there is simply nothing there. I was only able to write games to NOR by using GBA power adapter (3V) that's plugged into a wall socket.
One other problem with NOR is that while I can load a game from it while having less than 2.4V (red light on) I can't load savegame properly once I'm inside the game—it loads the savegame with all kinds of graphical artifacts and sound goes awry. If the light on GBA is green (above 2.4V) the savegames load without problems. As the rechargeable batteries relatively quickly drop below 2.4V playing games from NOR is simply not practical for me because of these issues, so I'm sticking with loading them into SRAM on each play session.