Hacking EZ-FLASH Junior TestFlight

EZ-Flash2 · Jan 5, 2021

Olly C said:
Thanks for confirming, that's a risk I'm fine with taking then

I can give you some feedback if you like too? I have a Japanese SGB2 and a PAL SGB using both on a Super NT.

If there's any specifics you want testing send me a PM and I'll try them out for you.

No problem, you can feel free to test, positive feedback you can even reply directly in this thread, leave the negative to me.

Olly C · Jan 5, 2021

EZ-Flash2 said:
No problem, you can feel free to test, positive feedback you can even reply directly in this thread, leave the negative to me.

Okay, well only positive feedback so far...

The firmware update went smoothly, I haven't had any speed or hanging issues, I'm using a 32GB SanDisk Ultra A1 10 card.

I first tested a game I owned the original cart for which was Tetris Plus, the border and custom colours loaded fine.

Then I tried Donkey Kong which is one of the most significant difference SGB enhanced games, worked fine too.

Then I tried Street Fighter 2 which changes border between each stage, that worked fine too.

The cart loads using the same as usual, one cartridge button reset press to pop the Super Game Boy logo, then a second to load the flash cart.

Saves seem to work fine as well still, a single cartridge reset press and it restarts the EZ Flash Junior and saves.

Then the final thing I wanted to test was Space Invaders which has the SGB exclusive full Arcade game on the Game Boy cart that gets pushed to the SNES itself via the SGB, this was the thing I was least optimistic about because I'd watched a video before where a different flash cart didn't allow it, but it works fine! Pushes the Arcade Space Invaders game to the Super NT and plays fine too

An example of King of Fighters with the regular firmware:

And then with the SGB Beta firmware:

Some of the Street Fighter stages:

Takeshineale128 · Jan 15, 2021

is it possible to sort the file/roms to A-Z and hide the mac (._) when copying roms from a mac

EZ-Flash2 · Jan 15, 2021

JosephNeale said:
is it possible to sort the file/roms to A-Z and hid the mac ._ when copying roms from a mac

about remove macOS autogenerated file. you can download the CleanMyDrive 2 from Mac Appstore for free. it can remove any autogenerated files when you ejecting your SD card.

Shadow#1 · Jan 15, 2021

JosephNeale said:
is it possible to sort the file/roms to A-Z and hid the mac ._ when copying roms from a mac

Nope use a toc app like fat sort

realtimesave · Jan 15, 2021

I tried this and I have to tap reset on the cart 3 times to get it to work, kinda gay if you ask me. lol

Mugen_rvlp · Jan 16, 2021

Hello i've bought an EZflash Jr few days ago, I can't make it boot
stuck on MicroSD initial error

Try firmware 4 / 5 / 4-13 test / 4-20 test
on GBA / GBA SP / GB Dmg

same problem, have you got any clues to unlock the situation please ?
Sandisk 32Gb formatted FAT32 in 32kb size allocation
Same with a 64gb Transcend

ez80a · Jan 17, 2021

Mugen_rvlp said:
Hello i've bought an EZflash Jr few days ago, I can't make it boot
stuck on MicroSD initial error

Try firmware 4 / 5 / 4-13 test / 4-20 test
on GBA / GBA SP / GB Dmg

same problem, have you got any clues to unlock the situation please ?
Sandisk 32Gb formatted FAT32 in 32kb size allocation
Same with a 64gb Transcend

Do not use 64GB uSD card, only 4-32GB.

Use some tool to zero-fill/repartition uSD card and format again as FAT32, 32k cluster.
(I've used dmde and windows console tool called diskpart for doing these tasks. Beware: Check twice what you're doing with these - you may accidentally erase wrong disk

)

After all... Put as first file ezgb.dat and some rom known to be working in emulator and try again.

Be sure to use fresh, branded batteries or bench supply, if you have one.

Mugen_rvlp · Jan 18, 2021

Thanks for the reply, on windows i've downloaded and use SD Card Formatter, and it works !

victoriemini · Jan 30, 2021

I've done some interesting fixes on top of the latest update, i'm creating a thread right now listing them, maybe you want to check it out =]

kirbyhammer_7 · Feb 1, 2021

Hey there, I just ordered my EZ Flash Junior and will start using it by the end of this month. I plan to play *lots* of Pokemon Crystal, and other games. With that said, should I use FW4 or FW5_7-31?

Reading older posts on here it seems that the clock gets off by just a little bit, just a minute or so every 12 days, which really won't bother me, but it is unclear if that is on FW4 or if that was fixed in FW5. Are there any disadvantages to using FW5? If not, I will probably just use that. If the clock is only off by that little amount though on FW4, I can totally just use FW4.

Additionally, I see some people saying Class 4 cards are slower, but others saying that the Class 4 cards are just fine. I intend to use the same Class 4 4GB Toshiba card (from a New 3DS) that other people here have verified as working, but should I drop a couple bucks on a Class 10 so I don't have to worry about it?

Any thoughts? Thank ya

DrunkenMonk · Feb 1, 2021

kirbyhammer_7 said:
Hey there, I just ordered my EZ Flash Junior and will start using it by the end of this month. I plan to play *lots* of Pokemon Crystal, and other games. With that said, should I use FW4 or FW5_7-31?

Reading older posts on here it seems that the clock gets off by just a little bit, just a minute or so every 12 days, which really won't bother me, but it is unclear if that is on FW4 or if that was fixed in FW5. Are there any disadvantages to using FW5? If not, I will probably just use that. If the clock is only off by that little amount though on FW4, I can totally just use FW4.

Additionally, I see some people saying Class 4 cards are slower, but others saying that the Class 4 cards are just fine. I intend to use the same Class 4 4GB Toshiba card (from a New 3DS) that other people here have verified as working, but should I drop a couple bucks on a Class 10 so I don't have to worry about it?

Any thoughts? Thank ya

Don't attempt to use a class 4 with FW5, issues with speed are apparent with that FW. The clock function changed pretty dramatically between FW4 and FW5, but FW4 should be stable for standard crystal/gold/silver, the only issues are encountered with advanced usage of RTC, such as Pokemon Prism

short version: your 4gb class 4 card should work fine and you should use FW4

kirbyhammer_7 · Feb 1, 2021

DrunkenMonk said:
Don't attempt to use a class 4 with FW5, issues with speed are apparent with that FW. The clock function changed pretty dramatically between FW4 and FW5, but FW4 should be stable for standard crystal/gold/silver, the only issues are encountered with advanced usage of RTC, such as Pokemon Prism

short version: your 4gb class 4 card should work fine and you should use FW4

Good to know! Thanks for the help. I will use FW4 and just re-adjust the clock as needed until a stable FW5 is up and I get a class 10.

Jayro · Feb 4, 2021

Is FW5 released yet? If it is, I don't know where to snag it.

Shadow#1 · Feb 4, 2021

Jayro said:
Is FW5 released yet? If it is, I don't know where to snag it.

Not final and official site

Jayro · Feb 4, 2021

Ok, thanks. I'll wait for the final stable release, as I'm already running the RC.

kirbyhammer_7 · Feb 6, 2021

Just got my Game Boy Color (CGB-001), atomic purple, and the flash cart doesn't work. I'm far enough out too I may not be able to return it, and I am livid.

I have:
Reformatted the SD and retried copying the FW files (like ten times)
Tried FW4 and FWRC5
Tried cleaning the cartridge and the system
Made a "SAVER" file on the root

I am:
Using a CGB-001
Using a Toshiba 4GB Micro SDHC that was confirmed working by others here.

I also tried a Lexar 32GB class 10, to no avail.

The system only boots to the "Game Boy" screen, and only has the (R), not the Nintendo logo. If it wasn't detecting the cartridge at all it would just show a black bar where the Nintendo logo would be, so it should be detecting the cart fine.

Any way to fix this?

Jayro · Feb 6, 2021

kirbyhammer_7 said:
Just got my Game Boy Color (CGB-001), atomic purple, and the flash cart doesn't work. I'm far enough out too I may not be able to return it, and I am livid.

I have:
Reformatted the SD and retried copying the FW files (like ten times)
Tried FW4 and FWRC5
Tried cleaning the cartridge and the system
Made a "SAVER" file on the root

I am:
Using a CGB-001
Using a Toshiba 4GB Micro SDHC that was confirmed working by others here.

I also tried a Lexar 32GB class 10, to no avail.

The system only boots to the "Game Boy" screen, and only has the (R), not the Nintendo logo. If it wasn't detecting the cartridge at all it would just show a black bar where the Nintendo logo would be, so it should be detecting the cart fine.

Any way to fix this?

How was the SD card formatted?

I used the default formatter in Windows, with FAT32 and a 64KB cluster size, and it works wonders.

kirbyhammer_7 · Feb 6, 2021

Jayro said:
How was the SD card formatted?

I used the default formatter in Windows, with FAT32 and a 64KB cluster size, and it works wonders.

Hmm I appreciate the suggestion. I could be mistaken, but I don't see a 64KB cluster size option for FAT32, are you referring to FAT?

EDIT: I was using FAT32 32kb cluster before. Gonna try FAT because why not, will update you.

Jayro · Feb 6, 2021

kirbyhammer_7 said:
Hmm I appreciate the suggestion. I could be mistaken, but I don't see a 64KB cluster size option for FAT32, are you referring to FAT?

EDIT: I was using FAT32 32kb cluster before. Gonna try FAT because why not, will update you.

It's very likely that I may have gotten the two mixed up, but yeah. Keep me posted. I have more suggestions we can try later if it doesn't work.

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