jingleslacks
Member
Last Activity: 05-29-2024, 03:13 PM
Joined: 02-02-2024
Location: Des Moines
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Yes, but a couple others in the thread have the same issue as you, and flashing this chip didn't help. We have moved onto the microcontroller, but it is protected.... -
Can you mark it on the picture? I won't be home to mess this it for a week, and I the photo quality isn't great when I enlarge my pic....Leave a comment:
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Which chip in the picture are you referring to?
Some things may be "well documented," but we're new at this, and don't know. We're learning as we go. Lots of trial and error. I have had success with a few different LG speakers, but this Marshall is a different beast....Leave a comment:
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With these types of devices, in order to use the USB port, the firmware has to contain a file telling it to run/download. The alternative is a button combination. For example, if you copied your firmware and saved it onto a USB, and I plugged it into my speaker, the speaker wouldn't know what to do with it. I'm looking forward to seeing how this method works.
I'm also curious as to why my demo unit has different firmware in multiple chips. If STM32F030CCT6 has the firmware that is controlling / limiting the features, why would MX25U3235F have completely different firmware since that function...Leave a comment:
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What do those numbers mean? Is there a way around it? Like with a password or something?...Leave a comment:
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Can you share more of this software and pin info? I'm only familiar with CH341a programmer and Neoprogrammer. I can start experimenting with mine if I know what I'm doing....Leave a comment:
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I was really hoping that wasn't the case. In my experience so far with speakers, the firmware has been in a bios/cmos/nor type of chip. I haven't had to do anything with micro controllers. I have had very bad luck desoldering chips. I'm going to have to practice a bit more while attempting not to destroy my live unit....Leave a comment:
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I believe this is the case. There isn't enough information about it. When I try Google, it mostly shows reviews or where to buy. Not much talk about firmware or chips. I'll keep searching....Leave a comment:
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I'm still skeptical though because I have seen posts of people posting early edition units that looked like the demo unit. Apparently, there were a bunch of issues, so I'm wondering if that is what brought about the change. Even if it wouldn't fully flash the same as a live unit, there are some features that should work- such as the ability to power it off and on. Features that would affect volume, amplifier, etc, would make sense to not be fully compatible....Leave a comment:
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This is the firmware from my live unit. This site doesn't allow .bin files, so I tried this format. I don't know much about altering/sending files, so let me know if it opens properly. Then, let me know if it works. Also, if you're able to access your micro controller, and want to share that file...
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Top = Live unit
Bottom = demo
Not much difference, really. The demo unit is older, so I believe that the differences are due to age upgrades rather than disabling functions. The firmware on the chips is significantly different. The ribbon cable on the the live unit is narrower, but I think that's an upgrade also. I don't know if there are limiting functions in the microcontroller, but that would defeat the purpose of having different firmware code in the first place. I REALLY don't what to unsolder that....Leave a comment:
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I can try to share the file when I get home and learn how to do it properly....Leave a comment:
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Did you buy yours new? I don't think your firmware is defective. Sounds like you also have a store demo unit. Does it work if you use Aux or RCA?...Leave a comment:
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Marshall Stanmore II - chip flash
Hey Friends!
I have both a live and demo unit. Demo unit firmware disables Bluetooth, power toggle, and other settings. Resets via button combos will not work on these. Reaching out to Marshall is not an option either.
I copied my live CMOS chip and flashed it to the demo unit, but that didn't fix it (MX25U3235F) This has worked for other devices in the past. I'm not a chip expert, but I'm assuming the firmware is stored in another chip.
If anyone has any experience or ideas, let's hear them!
Stanmore II
Stanmore 2... -
LG Xboom PL5 & PL7 speakers - flash assistance
Hey Friends!
I need help flashing the bios chips on my PL5 and PL7 speakers. I found a thread about a similar model (PK)- which was extremely helpful, and taught me how to successfully do my RP4. There is only 1 chip that even looks like a bios chip, so I was pretty sure I had the right one. Plus, I'm getting a proper voltage from it. After some research, it seems that it's an eeprom instead of bios/spi. I don't really know the difference. I've tried NeoProgrammer and AsProgrammer, but neither have the chip listed. I'm very new at this, so any wisdom would be appreciated.... -
I'm having the same problem with my PL5 and PL7 (newer version.) I'm also still learning and could use assistance....Leave a comment:
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I realised that I just posted my previous in the wrong forum since I have a Stanmore II. In other news, I found these in another group. Hope they help...
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Hi Friends,
I'm not too bright, and I could use some guidance. I don't know a lot of part names or terminology, but I'm trying to follow along. I was measuring voltage across my chips, and my cat got curious and a bit too close to the exposed electronics. I turned my head for a second to shoo him away. In that moment, I was met with a tiny pop, flame and smoke from my leads shorting something. I'm pretty sure I fried the chip. I don't know it's sole purpose, but now I'm not getting any real measurable voltage to that board. My (what I think is my BIOS chip) was getting 1.8V- now...Leave a comment:
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I stumbled across this site while trying to fix an speaker- extremely helpful!Leave a comment:
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