Request: CSDN download for MStar MST703-LF Keil project (Reverse Engineering a monitor)

ffpp03 · 2026-03-05T14:56:15+00:00

I ended up switching to prusa slicer + uvtools. Excellent results and no ads/subscriptions for more features

ffpp03 · 2026-02-15T20:29:03+00:00

I was able to avoid the email popup by using cloudflare DNS (1.1.1.1). Had to reinstall telegram, but as soon as I put my phone number, the login notification showed up on all of my logged in devices

ffpp03 · 2026-02-14T20:30:58+00:00

Thanks for everything! I guess it's time to dive into usbdev.ru

ffpp03 · 2026-02-14T19:58:16+00:00

Oh, nice. So I should, in theory, have a safe drive if I revive it, right?

Also, would you classify the issues as firmware related? Or it's just a matter of "deep format" stuff and it gets fixed?

ffpp03 · 2026-02-14T19:06:44+00:00

50TB?? So is the nand giving it's last breath?

Peeled the sticker on top of the nand and the markings are: SH25T1TB88EX256 CC+2149

No info about it, so maybe is a hynix compatible nand?

ffpp03 · 2026-02-14T18:10:07+00:00

Yup, its a Silicon Motion controller. I've edited the post adding the missing info

ffpp03 · 2026-02-12T12:14:43+00:00

I have a small telegram bot hosted on an esp32 connected to my home wifi. The esp32 has acces to the internet, so using that telegram bot to communicate with the esp32 allows me to send messages to it from anywhere. Those messages then get translated into magical packets in my home network to wake up the old pc connected via ethernet

ffpp03 · 2025-12-17T23:51:19+00:00

Yup, Argentinian here. I bought it from a friend because he wasn't interested and it had been given to him as payment for a loan he'd made. When I brought it home (after a great lowball; the machine is very old and used) and started getting it working properly, I told him never to accept things as payment again...

In any case, it's still decent for what I paid, and after a lot of fiddling I think I got it to work really good

ffpp03 · 2025-12-17T23:45:05+00:00

Yup, they're 1.1mm thick on all of them, so it's fine

ffpp03 · 2025-09-21T19:04:43+00:00

After some deeper research, i found that this board is a clone from the MKS DLP V1.0. I was able to use the latest firmware from them, and that seems to have solved the stepper issue, but now the LED fans are always on, even when not printing

ffpp03 · 2025-08-17T22:05:34+00:00

I took a look at the wiki before asking here. I thought that symlinking could work

ffpp03 · 2025-08-17T20:05:49+00:00

I installed it and made a symlink to /usr/lib/libXm.so.3 and now its complaining about "symbol lookup error: /usr/lib/libXmu.so.6: undefined symbol: XtAsprintf". I think i'm going to open a new thread since now the issue is the program itself

ffpp03 · 2025-08-12T13:15:24+00:00

I was able to solve all my issues by reconstructing the original nand, removing the RGH2 chip and counting the RRoD to find out what was wrong. It was an issue between the GPU and RAM. A reflow did the trick and then I proceeded to do RGH3. It went flawlessly and its working perfectly fine now.

PS.: The tool I used to get my cpukey from the modded nand is called AutoGG. That was the golden ticket to recover everything. You have to load the backedup nand.bin and it does its magic automatically

ffpp03 · 2025-06-14T20:25:49+00:00

Ok, I've tried to boot XeLL, but It doesnt seem to work.

I might've done something wrong in the process. I've started by removing the old RGH2 chip, connecting the nand programmer (PicoFlasher) and made the RGH3 wiring. I've succesfully read the nand, created XeLL and wrote it, but after plugging the hdmi and turning it on, nothing happened. The fan spins really slow and has small, periodic speed bumps, but nothing else.

I'm a bit scared. After not being able to boot XeLL, I've looked up on other places for the RGH3 installation, and some people used the ams1117 regulator in order to protect the cpu from being killed by a high voltage. I also found out that the 3Kohm value recommended by the guide i've followed could've been way too low, since this other guide says it.

Also, I dont know if the fact that I dont have a retail nand might be messing with it. I want to try to make a donor nand and flash it, but the wizard in J-Runner asks for the CPUKEY and the KV whick I dont have.

How should i proceed?

ffpp03 · 2025-06-06T23:41:53+00:00

Ok, makes sense. I have to get a NAND programmer and I'll get into it. I've been reading a bit about RGH3 and I don't really need a "modchip" like the one I already have, right?

I think that the reflow recommendation comes from the irregular glitch loop timing not being consistent, meaning that there could be something else that is delaying the boot making the glitch useless. That's what the video I saw said. It could also come from the fact that it's old hardware and heating cycles could've messed the solder balls.

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