A magnetic hook can recover a submerged iPhone 12, but knowing how strong Apple's MagSafe magnets are can make it easier to build your own.
In a somewhat nerve-wracking, but entertaining story related to Apple's MagSafe technology, a submerged iPhone 12 was retrieved after being dropped in a canal. This didn't involve the owner going for a swim. Instead, a magnetic fishing rod was cobbled together and the expensive device was rescued from the watery depths. With a little research into Apple's MagSafe Guidelines, it might be possible to make one that may work even better.
Every model of the iPhone 12, from the tiny iPhone 12 mini to the largest iPhone ever made, the iPhone 12 Pro Max, uses the same MagSafe connection for wireless charging, allowing precise positioning that delivers power twice as fast as the Qi chargers used by the previous generation of the iPhone. This magnetic capability opens up the possibility for accessories that connect to the iPhone securely but come off easily with firm pressure.
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Apple's MagSafe technology helped at last one iPhone owner recover their phone after dropping it in a canal, as explained by Frederik Riedel, who improvised a MagSafe fishing rod using a collection of magnets of unknown strength. After hauling various bits of metal debris from the canal, the iPhone was finally caught. There were some tense moments described as the iPhone neared the surface only to come loose and drop to the muddy bottom again. Eventually, the iPhone 12 was recovered and was still working thanks to its water resistance. Riedel's experience along with some specifications from Apple's Accessory Design Guide can help anyone interested in a MagSafe fishing rod, build their own.
While Riedel used a random assortment of magnets, knowing how much magnetic force is needed might be more helpful. A magnet that is too strong might become semi-permanently stuck to a heavy piece of metal or iron grating underwater. A magnet that is too weak won't be able to lift an iPhone. Apple recommends N48H grade neodymium magnets for MagSafe accessory makers, which are much stronger than common refrigerator magnets but not the strongest available. We know that an iPhone 12 can be lifted by a MagSafe charger, so that is a good starting place. Apple's Accessory Design Guide suggests a maximum force of 1.1-kilograms, which is about two and a half pounds before the magnetic hold begins to release. However, a stronger magnet would be wise since the goal in this instance is to lift an iPhone through moving water.
A powerful neodymium magnet in a casing with a place to attach a line or cord can be purchased for about $15. The more common and weaker ceramic magnets are often available locally at big box stores and combining enough to lift three to five pounds will work. Naturally, a fishing line or cord and a rod or stick will be needed to attach the magnet and suspend it over the water while 'fishing' for the submerged iPhone. It's important to note that dragging the bottom will likely retrieve plenty of unwanted scrap, and perhaps some interesting items, if the search area is too wide, so identifying the approximate location where the drop happened is important to speed the process. Murky water will make this harder and if there is growth at the bottom, it might be impossible to pull an iPhone from the depths. Clearly, even the best MagSafe fishing rod will require time and patience to achieve success, but given the price of an iPhone 12 and the potential loss of data, it may be worth the effort.
Next: How Apple Might Use MagSafe As An iPhone Replacement For Lightning
Alan is a Tech Writer living in Nova Scotia, Canada. A tech-enthusiast since his youth, Alan stays current on what is new and what is next. With over 30 years experience in computer, video and photo equipment, you can expect useful tips and insights in his writing. Alan has a degree in programming, many years focused on design, editing, and animation. A period of managing logistics and e-commerce operations for a mobile accessories company rounds out a diverse background. Alan is a true jack of all digital trades in this ever-changing computer-enriched world. To stay flexible in mind and in body, he practices yoga, light cardio, and eats a whole food diet, based on minimally processed plants.