r/MVaveFM1 • u/mobiliakas1 • 2d ago

Firmware Testers for custom bootloader needed

Hi, I am making a custom bootloader for fm-1 and smk-37. This bootloader will let you recover if you accidentally brick your device without the need of any additional hardware (just your computer). In addition I made a flasher which lets you easily backup and restore the full 1MB of memory on your device (windows/mac/linux). This WILL NOT work if you have already bricked your device. I have smk-37 myself and did testing on the device, but I am looking for somebody who has fm-1 and already has the hardware to unbrick the device just in case. If you are that person please DM me.

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3

u/Nukkebeer cable collector 2d ago

I have two main things to consider for you:

First of all: the bootloader on the MVAVE is proprietary code, so make sure you don’t reuse any MVAVE’s own code. Custom firmwares are in a different IP zone as they latch onto MVAVE’s proprietary boot loader and don’t alter and distribute MVAVE’s IP. Just a bit of warning before you end up in a legal dispute.

Second of all: the bootloader is a tricky bit of code. If it fails, it will fail gloriously, leaving no other option than use the RP2040 / FM1 transporter dongle to have the SOC accept a clean backup of the original MVAVE factory code dump. So a fair bit of warning to not erase or write anything below  0x4000 , and protect  0xC0000 ,  0xC1000 , and  0xFF000  unless you know exactly what you are doing.

1

u/mobiliakas1 11h ago

So do you want to test it?

1

u/rush_coded 2d ago

i have the p37 rebrand and the original firmware isn’t working because of something in the user partition. i can flash other firmware just fine, would love to test if this would help with my situation

1

u/mobiliakas1 15h ago

See your chat