每周一次，我们从HTG提示框中收集一些提示，并与更多读者分享；本周，我们将通过流程图、降级iOS和滚动自己的DIY烙铁笔来选购Kindle。

使用流程图选购kindle

Andrea写了一篇以Kindle为中心的购物小贴士：

So after much deliberating on the topic, I finally got around to doing some shopping for a shiny new Kindle. You can imagine my surprise! The last time I went Kindle shopping was around this time last year and my opti*** were limited to the Kindle Keyboard (**all!) or the Kindle DX (big!). There have been some serious changes in Kindle land and it was a bit tricky to sort out exactly what I was getting if I went with one model over another (touch? keyboard? with ads? without ads?). I found this super handy flowchart to help me pick. I figured I can’t be the only one looking for an ebook reader this holiday season. Keep up the good work!

这个流程图不仅对于购买Kindle的人来说很方便，而且对于那些想找一个角落，想仔细检查Kindle的功能的人来说，它也是一个很好的参考点。谢谢分享！

使用ifaith降级ios

Brainz写文章时，重点放在降低iOS级别上：

This might be a bit specific for the tips post ya’ll do every week but this tip/program has been so useful to me I just had to share. As of the iOS 5 updates it’s impossible to downgrade. This might not be a big deal for the average user but for jailbreakers and modders it’s a huge deal. Historically you could jump back to prior versi*** if you needed to for whatever reason (like you found out that a cutting edge jailbreak wouldn’t work anymore and you needed to go back in time, so to speak). This is where iFaith comes in. iFaith lets you backup the SHSH blog from your present iOS version and keep it safe and sound (think of your SHSH blog as like the key to unlocking old versi*** of iOS). You can now upgrade without fear, knowing that you can go back in time! Here’s a step-by-step tutorial to using the app.

虽然你是对的，但这是一个非常集中的提示，非常有用。我们有一些越狱装置，很快就会得到治疗。谢谢你的来信！

diy焊锡笔，焊接轻松舒适

本写了以下提示：

I love all the DIY electronics posts you guys share. I have a soldering-related tip for the tips box. I gutted a couple old pens and mechanical pencils, following this guide here, to serve as “soldering pens”. They’re super handy. Instead of holding the solder in your hand you can instead hold the pen case as a way of easily directing the solder. In addition to the tips in the tutorial link I shared (he only uses a hollow pen) I’d suggest going to a drafting store and getting a large bore mechanical pencil. I found that a 1mm size drafting pencil would actually feed the solder with the mechanical action. Pretty neat!

这样的技巧让我们想从工作台上扬起灰尘，重新开始弯曲电路。谢谢分享！

有什么小窍门可以分享吗？给我们发邮件[email protected]你可能会在头版看到你的建议。