slavetothesound
Member
Last Activity: 01-13-2025, 09:03 AM
Joined: 04-02-2024
Location: Bozeman, MT
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Actually I hit retry enough times and got it to read the GigaDevice in between warnings about pin mismatches and overcurrent protection. Unfortunately all four reads resulted in different files. I might finally have to learn to solder....
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I've just picked up a locked 800 G9 mini from eBay planning to give this a shot, but I'm not sure the T48 even supports these two chips, yet. I selected the closest sounding one in Xgpro, the GD25B256E @WSON8 but couldn't get it to read. Could also be that the WSON8 probe / pogo adapter is much more difficult to use than the SOIC clips, I'll admit I'm a complete amateur at this.
Am I going to need to wait for a software update? I don't know much about chips but it seems the closest things in the compatibility list for the T48/T56 are:
1) MX25L25673GZ4i-08G
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Ohhhhh there’s a password complexity requirement that I was not aware of. Everything works!
Thanks you all for your help. It turns out my test password just wasn’t good enough. I wish software engineers would provide more helpful error messages in their programs.Leave a comment:
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It booted with a message like “finishing the final step of your bios update”, then reboots. It seems to be the same as before - the BIOS is still unlocked, but I can't access the MEBx configuration. I enter the default password “admin” and it prompts for a new password, but errors when it goes to save the new password.
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Thanks for this! Should have time to try this out tomorrow evening....Leave a comment:
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is there more than one chip I should read from? I’ve only read from the chip in the far bottom left. The one labeled BUOS was something like ‘70’ or ‘17’ repeating. Can’t remember exactly....
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Here's the firmware I originally read from the device before unlocking. Read twice to verify. It still shows errors in ME Analyzer. I'm guessing this was modified or corrupted before I acquired the device on /r/homelabsales.
Guessing at the relevant bits of output from ME Analyzer:
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MXL1515LDX...
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- [LIST=1]
- Flashed the original working BIOS back.
- Machine boots with "There is a problem with the HP Endpoint Security Controller on the unit. The Endpoint Security Controller settings havebeen recovered to their default state."
- Flashed the unlocked BIOS again.
- Machine Boots, BIOS are unlocked.
- Updated BIOS to latest version (ME and USBC also updated).
- [B]The Management Engine section of the BIOS is still locked.. Any ideas how to go about unlocking this? BIOS current state attached.[/B]
- I also had a look at the BIOS files in ME Analyzer and there are some errors about corruption
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Thought about it a little bit... I have the original password protected BIOS saved. I will try to flash that back and see if the situation improves.Leave a comment:
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HP ProDesk 600 G6 Mini BIOS unlocked - now EC can't find valid firmware
I Used a T48 and RCUnlocker to remove password from the BIOS on a previously fully functional HP ProDesk 600 G6 Mini. Everything went very smoothly and I was able to boot the machine and install an OS. I then unplugged the machine and put it on the shelf for a week.
Now when I boot the machine, it does not POST. It plays 5.2 beep codes which are interpreted as:
I read the firmware with the T48 and it is different than what I flashed to it, so I flashed the unlocked firmware that I had saved. No change. I could use some advice on next steps to take.
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Nevermind...
I tried a different CPU - a 10500T instead of the 11500T. There were some memory initialization warnings, but after a couple of restarts the thing is working just fine.
Lessons learned: The HP 800 G6 Mini probably DOES NOT work with 11th gen CPUs (11500T) - note that I do not have an LGA1200 motherboard to verify that the CPU is good, but I did install it in other HP 800 G6 machines and had the same results.Leave a comment:
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HP 800 G6 mini - no POST, no video, no beeps
Emboldened by an easy experience using my new T48 to remove bios password from a used machine of the same model (thanks badcaps), I ordered an ‘as-is’ HP 800 G6 Mini thinking it might be an easy fix. Now it looks like the bios chip has been removed and soldered back already, so I think I might be wasting my time with this board - someone more skilled has already tried…
Anyway, the fans spin up on this guy and there are a couple LEDs on the board, but there is no other sign of life. No video, no beep pattern, no keyboard. Since there’s so little feedback, I’m feeling out... -
hello from the pacific northwest. I'm here to learn some things and hopefully repair some locked BIOS on a used computer. Just ordered a T48 and looking forward to getting thoroughly confused while reading manuals I don't understand!Leave a comment:
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