请问HN：我如何可以在线学习手机维修？
背景：我更喜欢小型手机，目前使用的是iPhone 13 Mini，计划再用三年。可惜电池一直在耗尽，我已经换了第二块电池。我更倾向于自己修理，因为大多数当地商店提供的电池质量较差，而且我有点担心把手机留在那里。我的屏幕也坏了，后玻璃也破了。我在考虑从阿里巴巴国际站（Aliexpress）订购一些替换零件，并想知道除了ifixit上针对特定手机的指南，还有没有其他好的学习资源。
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Context:<p>I prefer smaller phones and currently use an iPhone 13 Mini which I plan on using for another 3 years. Sadly the battery keeps on dying and I'm on my second battery. I prefer repairing myself since most of the local shops provide lower quality batteries and I'm a bit paranoid of leaving phone there. My screen is also broken and also the back glass. I'm thinking of ordering few replacement parts from Aliexpress and was wondering if there are any good resources to learn other than phone specific guides on ifixit.