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Try looking for help on laptopu.ro
WBR

Reading your post, i suspect the problem may be the bricked chip which was disconnected while previous "write" attempt due to an intermittent hardware contact somewhere. Check the reset pin of the CPU. If that doesn't work, try using a new firmware chip.

Hello, No that's not the problem. i actually never got to the point of burning firmware. also BSL is separate from the main flash memory.
I'm getting help from all the community i know. so far it seems it's a hardware failure. either USB or crystal. I'll be testing crystal soon

Reading your post, i suspect the problem may be the bricked chip which was disconnected while previous "write" attempt due to an intermittent hardware contact somewhere. Check the reset pin of the CPU. If that doesn't work, try using a new firmware chip.

I'm building a new desktop PC, a Core Ultra 9 285k with an Asus Z-890 motherboard. I paid an exorbitant price for 32GB of 6400 MHz CL32 RAM, essentially triple what it cost a few months ago.
Unfortunately, this situation is set to get worse. SSDs are also rapidly rising in price, and all products that use memory are set to increase significantly.
A few days ago, Raspberry Pi announced its new price list, with a steep increase for the various models based on the RAM installed.

SSDs are now twice what they was in July and is still rising. I am dual booting my system with two Windows OS. The secondary system set up to never be connected to the net for running Altium and other software that is know for notoriously calling home. I ordered/built my system in July 2025 and the thought was. Why not throw in an extra SATA SSD just to do that. They are so cheap anyway.

I'm building a new desktop PC, a Core Ultra 9 285k with an Asus Z-890 motherboard. I paid an exorbitant price for 32GB of 6400 MHz CL32 RAM, essentially triple what it cost a few months ago.
Unfortunately, this situation is set to get worse. SSDs are also rapidly rising in price, and all products that use memory are set to increase significantly.
A few days ago, Raspberry Pi announced its new price list, with a steep increase for the various models based on the RAM installed.

I built myself a new PC in summer last year after watching prices for half a year and procrastinating. 128GB RAM, 5700 TI GPU, 2x4TB nVME. I also upgraded the RAM in my HP mini that I use in the living room from 32GB to 64GB.

The 32GB RAM upgrade is now four times the price I paid. I simply couldn't afford to build the PC at today's prices. At a quick look, it's well over double the price.

For once in my life, I got my timing right on the pricing.

Things are going from bad to worse. My 6400MT/s CL32 kit cost more than four times more than when I bought it in June. And a 64 GB kit is in the range of a Nvidia RTX 5080 GPU. 

Check this
https://en.eeworld.com.cn/news/mcu/eic163572.html

I suggest to use rtx51 instead.

Thanks for the suggestion.
Unfortunately, RTX51 is discontinued & last version of it doesn't support the Nuvoton/Megawin controllers I wish to use.

While my application isn't super complex, I need real-time response for 1 task, which I am unable to get through normal superloop/interrupt structure. For the same reason, I would prefer Preemptive kernel over cooperative.

_sam_des

I suggest to use rtx51 instead.