Joseph Hewitt
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jhewitt.net
Joseph Hewitt
@jhewitt.net
Cybersecurity consultant with an interest in electronics. British, but now living in The Netherlands. Creator of the ESP32 wardriver: wardriver.uk
Noticed quite a drop at the load balancer that handles my incoming traffic but it seems to be slightly improving again.
November 18, 2025 at 11:49 AM
Nice! I used to travel on the D line a lot, and that Jumbo on the right always looked weird to me so I recognized this spot immediately.
November 6, 2025 at 6:55 PM
I'm both surprised and completely not surprised at the same time. It's funny to the point of being sad how much stuff like this ends up on the market.
October 7, 2025 at 10:13 AM
I did a quick writeup which is here: jhewitt.net/thinkpad_x13...

I'll probably clean it up/improve it later, but I'm done with this for today :)
thinkpad_x13_reset_supervisor_password [Joseph's Projects]
jhewitt.net
October 6, 2025 at 11:11 PM
Thanks for sharing, I was reading about a similar method earlier. To be honest I spent the entire day researching this because it should be easy for this generation of ThinkPad but somehow nobody has documented this specific PCB revision, so I ended up down a couple of rabbit holes 😅
October 6, 2025 at 7:52 PM
Obviously you should only do this to laptops you legally own and have the rights to modify.

But if you happen to have an old-ish Thinkpad with a supervisor password which you have, uh, forgotten, then maybe just using a piece of wire connected to ground is all you need to fix it :)
October 6, 2025 at 7:36 PM
I've had some inconsistent results with the ESP32 boards. Some of them seem to have better radios than others. Same for the antennas and pigtail SMA cables, especially when bought from aliexpress etc.
October 2, 2025 at 11:35 AM
Yeah, sorry about that. It is usually faster than that but is always slower than I would like 😅

By the way, it is generally ok to unplug it to cancel it even if it tells you not to. That warning is mostly there "just in case" because I can't 100% guarantee it is safe.
October 2, 2025 at 11:26 AM
Me fixing computer issues: *hours of research and a journey of learning*

Me fixing plumbing issues: fuck it put a bucket under it
September 20, 2025 at 11:29 AM
It works. Also running 3rd party firmware (Rockbox) now.
February 19, 2025 at 10:11 PM
Opened it up and removed the mechanical hard drive. I'm going to replace it with an iFlash Solo which lets me insert an SD card for storage instead of a spinning disk.
February 18, 2025 at 6:56 PM
The person I bought it off was a reseller rather than the original owner, and they synced stuff onto it presumably to test it, so it's possible the gap between 2010-2022 is simply because they overwrote it.

Anyway cool to see it has been mostly well used.
February 13, 2025 at 6:41 PM
I used photorec to extract the files since the iPod had been reset, then used ffprobe to pull out the metadata from media files.

For each file synced with iTunes, you get something like this since iTunes often leaves quite some metadata. This makes it easy to see when syncs happened.
February 13, 2025 at 6:41 PM
I saw a large increase in PM1, PM2.5, and PM10. So it's safe to say this would reach my lungs. I'm not a medical expert so I have no idea what affect that would have long-term.

One solution is to use purified water, but that feels like a waste of money. I returned the device and will keep looking.
January 11, 2025 at 2:45 PM
It's not my design but appears to be the HackerBoxes version which is based on my design. See here: hackerboxes.com/products/hac...
HackerBox #0089 - Wispy
Wispy threads of radio waves surround us in tapestries of information awaiting collection!  Explore parallel, multicore microcontroller systems for collecting Radio Frequency signals including Wi-Fi a...
hackerboxes.com
December 3, 2024 at 5:52 AM