Additional information
The following ROMs can be easily created using Xgecu's T48. I'll add photos later.
1, Model: Apple IIe Enhanced ROMs
ROM storage location:
https://mirrors.apple2.org.za/Apple II Documentation Project/Computers/Apple II/Apple IIe/ROM Images/
Method:
In order to change the specifications from the initial IIe model to the Enhanced IIe model, you will need to flash and replace the three ROMs.
CD ROM: 342-0404-A
EPROM 27C64
EF ROM: 342-0303-A
EPROM 27C64
CD and EF ROMs will have the Apple ROM numbers above. The EPROM used is 27C64 (2764 is the same), and the capacity is 8KB. For example, ST M27C64A is relatively easy to obtain.
Video ROM includes text characters, so there are various hacked specifications. General US specification is following.
Video ROM: 342-0265-A
EPROM 27C32
EPROM 27C32 is 4KB. For example: TI NMC27C32BQ and ST M27C32A are relatively easy to obtain.
As shown in Drake's video, first point the EPROM in Xgecu's flasher APP, then point it to the ROM's ".bin" file downloaded above to flash it.
2, Model: Apple IIc ROM4x
*ROM0,3 and 4 are same way
ROM storage location:
https://downloads.reactivemicro.com/Apple II Items/ROM_and_JEDEC/IIc/
Project page:
https://github.com/mgcaret/rom4x
Method:
EPROM uses 32KB of 27C256 for the ROM4x. Example: ST M27C256B is relatively easy to obtain, but it is also a discontinued product, so we will use a recycled one. I don’t recommend buying just one EPROM, so buy several EPROMs in case the product is defective. *Many Chinese sellers probably sell sets of 5 or 10 pcs.
As shown in Drake's video, first point the EPROM in Xgecu's flasher APP, then point it to the ROM's .bin file downloaded above to flash it.
*There are two ROM4x .bin files in the above ROM storage location, but there was no big difference no matter which one was used in my experience. Please use a later version just in case.
In addition, to make IIc ROM4x, change the two jumper solders on the mother board. The positions are W1 and W2.
Reference link;
https://www.apple2faq.com/apple2faq...g6dHxvxYdH9SbyCvsA-Zr1-_e0wyenW6WFG-cKSsxj_oM
Tips:
- Compatible EPROMs are available from many manufacturers. In rare cases, the output pin specifications may be different, so please check the data sheet. The EPROM example given above should work well.
- If a pin error occurs, clean the pin with nail file stick, In my case, I stole it from my daughter's makeup box...lol
- In some cases, eBay or Ali sellers, they sells products without erasing the EPROMs, so it is convenient to have a UV eraser available. *It is difficult to erase in sunlight. Fluorescent lights for disinfection are the most efficient. UV LEDs have different frequencies and are often useless.