newRPL - Updated to build 1510 [official build remains at 1487]
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07-29-2021, 02:35 PM
Post: #138
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RE: newRPL - Updated to build 1487 [ including official build]
(07-29-2021 11:51 AM)Alejandro Paz(Germany) Wrote: Hei, I'd like to give it (finally) a try using a 39gs. My question is how should I strip the binary (newrpl39.bin) so I can flash it using a jlink (I "added" a jtag connector to my 39gs). The file doesn't have any extra headers. The ROM merely changes the "KINPOHP39G+IMAGE" string at the beginning of the file with "Kinposhcopyright" (total 16 bytes changed). This is checked to see if the ROM is valid, so you need to do it or the calculator won't boot. Once you replace that string, just write the whole file to 0x4000. Make sure you DON'T erase the blocks at 0 thru 0x3fff since that's the bootloader and it's not included in the rom file. Best of luck. |
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