Hello, thank you so much for confirmation, it was so frustrating for me, because it seems to be working fine for everyone but me, I am not sure if it is a bug or a protection system, because of the boot message "Dont buy carts from ali express" and the only way to play it on original consoles (like the majority of my consoles) is using a flash cart. But I am glad that you confirmed my TMSS suspect, I also double checked the rom header on $100 looking for SEGA text, but it is there, so the doubt is, BUG or FEATURE, maybe on version 1.2, I already posted about the TMSS issue on the comments, but no reply from H0ffman so far. thank you again for your help, I can relax now :D
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nice one H0ffman, I am glad you are aware of the TMSS issue, here is the flash PCB with SRAM you need: https://es.aliexpress.com/item/1005008591123623.html?spm=a2g0o.productlist.main.8.44216db7QQBTSp&algo_pvid=348f644c-f3e4-4e52-93ea-9d2dfe3647af&algo_exp_id=348f644c-f3e4-4e52-93ea-9d2dfe3647af-7&pdp_ext_f=%7B%22order%22%3A%2223%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21MXN%21120.68%21107.90%21%21%2144.12%2139.45%21%402103246617484530063751688ef1b1%2112000045891054488%21sea%21MX%21862716286%21X&curPageLogUid=pDmq5CBZS5Nm&utparam-url=scene%3Asearch%7Cquery_from%3A