[sudo-discuss] Re: Chromebook Unlocking at Sudoroom Sunday 11AM

I left a pattern that might work in the screw bag for the opened laptop. Also, the laser is working well now. I tensioned the belt pictured below before cutting, but I actually didn't do a test cut before so I suppose it could've been something else. But if nobody used it between sunday night and monday night, then pretty sure this was the needed fix for the squiggly line problem: [image: IMG_20230522_214007_1.jpg] The wider/squiggly lines were what I was getting before on Sunday, and the thinner lines were made last night. [image: IMG_20230522_223909.jpg] Paige On Sun, May 21, 2023, 10:59 PM Jake via sudo-discuss < sudo-discuss(a)sudoroom.org&gt; wrote: > Since Tom figured out how to fix the chromebooks by reflashing them, today > we > focused on finding the BIOS chip pins on the accessible side of the board > (which we need to access to get to the Write Protect screw anyway) > > turns out we can get to all the pins of the BIOS chip from the bottom of > the > board and Paige is making a laser-cut pattern for a piece of acrylic that > will > hold pogo pins, which will touch those contact points when aligned with the > board by two scews. Then we can hit "reflash" and when that's done, move > onto the next chromebook. > > these are what pogo pins look like in use: > https://blog.tindie.com/tag/pogo-pins/ > > https://wiki.mrchromebox.tech/Unbricking > our model is "candy" something? I don't know maybe Tom knows, i'm > focusing on > the electrical connections described above. > > -jake > > On Fri, 19 May 2023, Peter Mui via sudo-discuss wrote: > >> Hi Tom and cc: Sudoers: >> >> Thanks for for organizing this. I'm still hoping that FUSD will unlock the >> Chromebooks so check occasionally as you process them to make sure they're >> still locked. >> >> Also see: >> USPIRG’s petition to extend the life of Chromebooks: >> >> https://docs.google.com/forms/d/e/1FAIpQLSc-QGoW0UzE0t0oUsKzM6Xsxft1kHM-d6b… >> For more background see “Chromebook Churn”: >> >> https://pirg.org/edfund/resources/chromebook-churn-report-highlights-proble… >> And Fixit Clinic's efforts to keep already AUEed Chrombooks in service >> as >> general purpose computing devices: >> >> https://docs.google.com/document/d/1JSbGXhJFJeABWVOn1wO4M6bPT-gPBLV4oQ85xMy… >> >> Maybe we can launch a broader "Keep 'Dem Chromebooks" public good program >> at Sudoroom and get a bunch of Linux-enhanced Chromebooks in circulation >> in the community to improve digital literacy, digital equity, and digital >> inclusion? >> >> Cheers, -Peter >> >> -------- Forwarded Message -------- >> Subject: Digest for berkeleylug(a)googlegroups.com - 1 update in 1 >> topic >> Date: Fri, 19 May 2023 11:11:34 +0000 >> From: berkeleylug(a)googlegroups.com >> To: Digest recipients &lt;berkeleylug(a)googlegroups.com&gt; >> >> >> >> berkeleylug(a)googlegroups.com < >> >> https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!fo… > >> Google Groups >> < >> https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!o… > >> < >> https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!o… >> >> >> Topic digest >> View all topics < >> >> https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!fo… > >> >> * Pi.BerkeleyLUG: This Sunday Raspberry Pi meeting at SudoRoom >> <#group_thread_0> - 1 Update >> >> Pi.BerkeleyLUG: This Sunday Raspberry Pi meeting at SudoRoom >> < >> http://groups.google.com/group/berkeleylug/t/f48694e818adf03f?utm_source=di… >> >> tom r lopes &lt;tomrlopes(a)gmail.com&gt;om>: May 18 09:24PM -0700 >> >> This Sunday 21 May 2023 from 11am to about 2pm at SudoRoom in Oakland. >> >> SudoRoom is on Shattuck Ave between 51st and Telegraph >> 4799 Shattuck Ave., Oakland, CA 94609 >> The entrance is on the corner of Shattuck and 48th >> >> >> https://drive.google.com/file/d/1wtxH4mtxL2HUe3y5JXJlhe7iqSDnikT8/view?usp=… >> >> >> The project this time is converting chromebooks to Linux. Peter Mui of >> Fixit Clinic was given a stack of EOL chromebooks from the Fremont school >> district. Unfortunately they neglected to unlock them first. But I have >> found that the bios can be reflashed so you can boot a Linux installer >> bypassing the Google check. I had a thought of using a Pi to do the >> flash >> as PI gpio can do SPI. But most of the chromebooks have 1.8V bios chips >> while the PI has 3.3V gpio. I probably have level shifters but I have >> recently dumped stuff unorganized into storage. So I will likely not find >> them in time. For now I am using a USB programmer with an 1.8V adapter. >> >> Yes I will also try to be online at meet.jit.si/Pi.BerkeleyLUG This >> will be >> a conference room mic and speaker in a shared space so maybe some >> background >> noise. >> >> Thomas >> >> P.S. You may be interested: SudoRoom has a hardware hack night every >> Tuesday from 7pm >> Also It's a Fixit Clinic. >> >> Back to top <#digest_top> >> You received this digest because you're subscribed to updates for this >> group. >> You can change your settings on the group membership page < >> >> https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!fo…