Repurposing Old Smartphones: When Reusing Makes More Sense Than Recycling

When looking at the specifications of smartphones that have been released over the past years, it’s remarkable to see how aspects like CPU cores, clockspeeds and GPU performance have improved during this time, with even new budget smartphones offering a lot of computing power, as well as a smattering of sensors. Perhaps even more remarkable is that of the approximately 1.5 billion smartphones sold each year, many will be discarded again after a mere two years of use. This seems rather wasteful, and a recent paper by Jennifer Switzer and colleagues proposes that a so-called Computational Carbon Intensity (CCI) metric should be used to determine when it makes more sense to recycle a device than to keep using it.

What complicates the decision of when it makes more sense to reuse than recycle is that there are many ways to define when a device is no longer ‘fit for purpose’. It could be argued that the average smartphone is still more than good enough after two years to be continued as a smartphone for another few years at least, or at least until the manufacturer stops supplying updates. Beyond the use as a smartphone, they’re still devices with a screen, WiFi connection and a capable processor, which should make it suitable for a myriad of roles.

Unfortunately, as we have seen with the disaster that was Samsung’s ‘upcycling’ concept a few years ago, or Google’s defunct Project Ara, as promising as the whole idea of ‘reuse, upcycle, recycle’ sounds, establishing an industry standard here is frustratingly complicated. Worse, over the years smartphones have become ever more sealed-up, glued-together devices that complicate the ‘reuse’ narrative.

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Hackaday Links: September 4, 2022

Say what you will about Tesla, but there’s little doubt that the electric vehicle maker inspires a certain degree of fanaticism in owners. We’re used to the ones who can’t stop going on about neck-snapping acceleration and a sci-fi interior. But the ones we didn’t see coming are those who feel their cars are so bad that they need to stage a hunger strike to get the attention of Tesla. The strike is being organized by a group of Tesla owners in Norway, who on their website enumerate a long list of grievances, including design defects, manufacturing issues, quality control problems, and customer service complaints. It’s not clear how many people are in the group, although we assume at least 18, as that’s the number of Tesla cars they used to spell out “HELP” in a parking lot. It’s also not clear how or even if the group is really off their feed, or if this is just a stunt to get the attention of Tesla honcho and notorious social media gadfly Elon Musk.

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The Huge Apple Toolkit For Fixing Your IPhone

It’s been a frequent criticism of Apple, that their products are difficult to repair. They’ve hit back with a self-repair program for iPhones, and should you wish to take advantage of it they will hire you a tool kit. Not the iFixit box you might expect, instead they give you two hefty suitcases that contain 36 Kg of tools and equipment. Yes, you can repair an iPhone, but they ensure that it’s not for the faint-hearted.

In the kit is an impressive array of everything you might need for your iDevice, including the proper heat plate and press for the job. None of that messing about with a hot air gun for your $49 rental cost and $1200 if you don’t return the tools, but it remains an impossibly difficult and expensive process for all but the most dedicated of Apple fanboy technicians.

The sense from the Verge article is that Apple have had their arm twisted to the extent that they must provide a repair option, but they’ve gone to extravagant lengths to make it something nobody in their right mind would pursue. There’s an attraction in the idea of playing with a fully-equipped Apple repair kit for a few days, but maybe it’s not worth the cost.

Even without the Apple toolkit, it’s still possible to upgrade your iPhone.

Thanks [Nikolai Ivanov] for the tip.

Hackaday Podcast 163: Movie Sound, Defeating Dymo DRM, 3DP Guitar Neck, Biometrics Bereft Of Big Brother

Join Hackaday Editor-in-Chief Elliot Williams and Assignments Editor Kristina Panos as we spend an hour or so dissecting some of the more righteous hacks and projects from the previous week. We’ll discuss a DIY TPM module that satisfies Windows 11, argue whether modern guts belong in retrocomputer builds even if it makes them more practical, and marvel at the various ways that sound has been encoded on film. We’ll also rock out to the idea of a 3D-printed guitar neck, map out some paths to defeating DYMO DRM, and admire a smart watch that has every sensor imaginable and lasts 36+ hours on a charge. Finally, we’ll sing the praises of RS-485 and talk about our tool collections that rival our own Dan Maloney’s catalogue of crimpers.

Check out the links below if you want to follow along, and as always, tell us what you think about this episode in the comments below!

Direct download the show, so you can listen on the go!

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the Caps Wiki logo, showing a few bulging capacitors, with "Caps Wiki" text under it

Caps Wiki: Place For You To Share Your Repair Notes

A right-to-repair battle is being waged in courts. The results of it, we might not see for a decade. The Caps Wiki is a project tackling our repairability problem from the opposite end – making it easy to share information with anyone who wants to repair something. Started by [Shelby], it’s heavily inspired by his vintage tech repairs experience that he’s been sharing for years on the [Tech Tangents] YouTube channel.

When repairing a device, there are many unknowns. How to disassemble it? What are the safety precautions? Which replacement parts should you get? A sporadic assortment of YouTube videos, iFixit pages and forum posts might help you here, but you have to dig them up and, often, meticulously look for the specific information that you’re missing.

The Caps Wiki talks a lot about capacitor replacement repairs – but not just that. Any device, even modern ones, deserves a place on the Caps Wiki, only named like this because capacitor repairs are such a staple of vintage device repair. You could make a few notes about something you’re fixing, and have them serve as help and guideline for newcomers. With time, this won’t just become a valuable resource for quick repairs and old tech revival, but also a treasure trove of datapoints, letting us do research like “which capacitors brands or models tend to pass away prematurely”. Plus, it also talks about topics like mains-powered device repair safety or capacitor nuances!

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Classic IPods Are Super Upgradeable In 2022

The classic iPod was the MP3 player to beat back in the day, loaded with storage and with its characteristic click-wheel interface. [Ellie] had an iPod Video laying around, one of the more capable models that came out near the end of the product’s run, and set out upgrading it for duty in the pandemic-wracked badlands of 2022. 

The iPod in question was a 5.5th generation model, prized for being the last to feature the Wolfson DAC with its good audio quality. [Ellie] used the ever-helpful iFixit guide to learn how to disassemble the device safely. Careful hands and a spudger are key to avoid marring the pressed-together metal case.

Once opened, an iFlash Quad board was installed inside that lets the iPod use up to four micro SD cards for storage instead of the original hard disk drive. With two 512 GB cards installed, [Ellie] won’t be short of storage. A new battery was then subbed in, along with a fancy clear front casing for the aesthetic charm of it all.

After the hardware modifications were complete, the iPod needed to be restored with iTunes to start working again. She then installed the open source Rockbox firmware, which opens up the capabilities of the hardware immensely. Perhaps best of all, it can play DOOM! Alternatively, you can use the clickwheel to control the volume on your MacBook if you so desire.

[Ellie’s] project goes to show that modifying an iPod these days can be a fun weekend build thanks to the great software and hardware now available. It’s wonderful to see that the platform still has such great support years after it has been discontinued. If you really want to look back though, take a gander at the early prototype of Apple’s breakout MP3 player.

An image describing parts of a Tesla modem board

LTE Modem Transplant For A Tesla Imported Into Europe

When modern connected cars cross continents, novel compatibility problems crop up. [Oleg Kutkov], being an experienced engineer, didn’t fret when an USA-tailored LTE modem worked poorly on his Tesla fresh off its USA-Europe import journey, and walks us through his journey of replacing the modem with another Tesla modem module that’s compatible with European LTE bands.

[Oleg]’s post goes through different parts on the board and shows you how they’re needed in the bigger picture of the Tesla’s Media Computer Unit (MCU), even removing the LTE modem’s shield to describe the ICs underneath it, iFixit teardown diagram style! A notable highlight would be an SIM-on-chip, essentially, a SIM card in an oh-so-popular DFN package, and thankfully, replacing it with a socket for a regular SIM card on some extender wires has proven fruitful. The resulting Tesla can now enjoy Internet connectivity at speeds beyond those provided by EDGE. The write-up should be a great guide for others Tesla owners facing the same problem, but it also helps us make electric cars be less alike black boxes in our collective awareness.

Not all consequences of Tesla design decisions are this minor; for instance, this year, we’ve described a popular eMMC failure mode of Tesla cars and how Tesla failed to address it. Thankfully, Tesla cars are becoming more of a hacker community target, whether it’s building a computer-vision-assisted robot to plug in a charging cable, getting it repaired for a fraction of the dealership cost, or even assembling your own Tesla from salvage parts!