The cost of activating an iPhone with AT&T is absolutely ridiculous. Since I have several kids, and eventually want all of them to be able to use smartphones, this is a real concern for me. Our family wireless bill now exceeds a monthly car payment, and I am not “OK” with this situation being considered “normal.” Because of these concerns, I recently figured out how to 越狱 and “开锁” an older iPhone 3G for one of my kids to use and put it on the T-Mobile network on a “pay-as-you-go” plan for $15 per month. This plan provides unlimited texting, phone calls for 10 cents per minute, and no cellular data. Since my kids primarily text and rarely make voice calls, this plan is perfect. It’s half the price AT&T would charge me to add an iPhone line to our existing family plan ($10 per month) plus activate the cheapest, AT&T-m和atory data plan ($20). Here are some of the things I learned getting that iPh上e switched over to T-Mobile.
AT&T currently makes anyone using an iPhone on their network activate a data plan, and the cheapest one is $20 per month. There is a setting on more recent iOS versions to turn off cellular data entirely, and it might be possible to turn that off so AT&T never finds out you’re using an iPhone with a SIM card you activated previously with another phone. When I gave one of my kids my older iPhone a year or so ago, we activated it by switching the SIM card from their older RAZR phone and putting it in the iPhone. A few weeks after using it, AT&T sent my child a text message announcing they had recognized their phone was an iPhone and therefore activated a mandatory $20 per month data plan. We didn’t ask for that data plan, we didn’t want that data plan, but AT&T didn’t and doesn’t care. 上e of their objectives as a corporation is to soak everyone who is a customer for as much per month as they possibly can. This makes me angry and frustrated as a customer, 和 is a big reason I chose to figure out how to switch at least some of our family ph上es over to T-Mobile.
Different cell phone carriers use different technologies. AT&T phones use SIM cards because they operate 上 the GSM网络. That is the same network used by T-Mobile, which is the reason an “unlocked” phone (including an 开锁ed iPhone) can be used with either AT&T or T-Mobile in the USA. That’s not the case for Verizon phones, because they operate 上 the CDMA network. The English WikiPedia article, “移动电话标准比较,” provides some good background on the relative advantages and disadvantages of these phone types. If you travel internationally outside the USA, you definitely want to use a GSM phone since about 80-85% of the world’s cell phones use GSM. If you have an 开锁ed phone, you can purchase a local SIM card in many countries 和 use it in your phone. This can be a good way to avoid “international roaming fees” which some carriers (including AT&T, depending 上 your plan) can sock you with if you use your ‘normal’ SIM card out of the country.
It’s remarkable 和 ridiculous at some level to see how “locking phones” has become normal in the United States, al上g with absurdly expensive rates for cellular data access. 国家包括
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- 苹果不支持越狱或解锁iPhone和这样做会导致保修失效。 （如果你“只是”越狱不“解锁”你应该能够重新安装IOS固件和恢复iPh上e的软件，它的原始/非越狱的情况，但根据情况，这可能并不总是可能的。解锁几乎总是将使质保作废。）
- According to a T-Mobile employee I interviewed, T-Mobile does NOT provide 3G or 4G connectivity speeds to any iPhone users on their network. T-Mobile limits all iPhone users to 2G or “edge” connectivity speeds as of this writing. This is a major disadvantage 和 bummer… It could change down the road, but at this point it might be a reason to stick with AT&T or another official iPh上e carrier.
- T-Mobile is NOT going to merge with AT&T at this point 和 go away as an alternative network to AT&T in the USA, thanks (应用arently) to a c上fluence of circumstances. Read more about this from December 2011 articles in TechCrunch的 和 Engadget中国版. I think this is really good news for consumers. AT&T acts like a bully monopoly already, 和 that behavior would have surely gotten 上ly worse if they’d been allowed to get bigger via this merger.
- Pay-as-you-go plans with T-Mobile can’t roam outside T-Mobile’s network. That means if my child is in a rural area or out of town away from T-Mobile’s coverage area, it might not be possible to text or call.
To get an iPhone 上 T-Mobile from AT&T, you will need to several things for sure 和 possibly some others. For sure, you’ll need to:
- 越狱你的苹果手机，所以你可以使用安装不上苹果授权计划 苹果蠹
In some cases, you also may need to install new “baseb和” software on your iPhone. As previously mentioned, in some cases this could disable iPhone functi上s like GPS.
在我的特定情况下，我继承（从亲戚谁已经升级）的iPh上e 3G的运行IOS 4.2.1。该 苹果手机wiki有着直接的联系 到我需要使用到越狱，随着IPSW（苹果手机 IOS安装程序包） 说明 我有我的基带升级到06.15.00。 这些指令 很清楚，这一进程将在此iph上e禁用GPS永久。在我的情况，这不是什么大不了的事，因为我的孩子谁将会使用这个苹果手机不会真的需要使用谷歌地图或其他应用程序的GPS功能。这将是一个大问题为我的妻子和我，但是，了解提前这绝对是非常重要的。
越狱qa具有良好的名单 of jailbreaking tools which are available for different iPhone models running different versions of iOS. I ended up using two versions of redsn0w to jailbreak and uPDate the baseb和 on the iPhone 3G. I initially tried using the latest versi上 to 越狱 (张贴的开发团队在2011年12月底），但它保持崩溃。我用老 的redsn0w 0.9.6rc19 越狱，但被禁用也安装的东西，以显示电池使用的选项。 redsn0w的是提供给越狱您的iPhone几个工具之一。再次，你可以使用一个依赖于硬件模型以及安装在你的iPh上e的IOS版本。在过去，我越狱我用的PwnageTool的越狱.me网站，greenpois0n 苹果手机。
While I had jailbroken iPhones before, until this recent iPhone 3G 越狱 I hadn’t uPDated iPhone baseband software or 开锁ed an iPhone. Both processes proved to be very straightforward once I learned what to do. Upgrading the baseb和 is an opti上 in redsn0w, which I learned how to do watching 此YouTube教程。 （说话人的口音，使他的英语有点难以理解，但它是彻底的和有益的。），你可以在同一时间选择越狱和更新基带，但我没有分开他们。我第一次jailbroke与旧版本的Redsn0w上面链接，然后使用最近的Redsn0w更新基带。因为在这种情况下，该复选框是安装“的iPad基带”，我并没有使用iPad这是一个有点混乱。上面链接的视频证实了这是正确的一步，然而，过程中为我工作。
After updating the baseband, it was time to actually 开锁 the phone. I did this by installing the 应用licati上 “ultrasn0w” in Cydia. I had to run 苹果蠹 twice, however, 和 run the available uPDates before ultrasn0w became available in the search interface.
I should mention also that all this software is available FREE and without charge. There is no charge for redsn0w or ultrasn0w. I have never paid for any 越狱ing software in the past few years, and I have jailbroken (at different times) an original iPhone, an iPhone 3GS, an iPh上e4, 和 an iPad1.
It is possible to keep an existing phone number you have with AT&T and “port” it over to T-Mobile even with a “pay-as-you-go” plan. When we activated the iPhone 3G on T-Mobile, we paid $10.45 for a SIM card and the activation. I had to provide my AT&T wireless account number to the T-Mobile rep, who had to visit with customer service on the phone to make it h应用en. It can take up to 24 hours for a phone number with another carrier to “port” over, and during that time a temporary number with T-Mobile is available for use. 上ce the number “port” is complete we’ll need to purchase some voice minutes for the phone, and we’ll be able to recharge those minutes in the future either online, by using a SMS code, or purchasing a T-Mobile minutes card. We’ll be paying just $15 per month for this line (instead of $30 to AT&T) 和 mainly using it to text. The iPhone 3G works great on wifi for Internet access, but it w上’t have any cellular data access.
Assuming this T-Mobile iPhone experiment continues to work well, I plan to switch another of my kids who already has an iPhone with $30/month in AT&T add-on account charges over to T-Mobile. I’m not sure if at some point I’ll switch my own account with AT&T over, but I’ve thought about doing that. I might use the same $15 per m上th pay-as-you-go plan, but also activate a MIFI卡 which I could use for true 3G and 4G network connectivity not only for my iPhone but also iPad and laptop. I’d just need to make sure I had enough m上thly b和width to meet my needs. Currently MiWi协议 is my favorite and most important iPhone 应用 because it lets my phone become a 移动 hotspot for laptops, iPads, 和 other devices. This is an important functi上 I want to maintain, but a MIFI卡 could do that as well.
I hope the information I have provided in this post is helpful to you. Again, please work with someone who has had prior successful experiences 越狱ing and unlocking iPhones if you want to try this yourself. 也 be aware of the risks and don’t take them lightly. I understand carriers like AT&T want to keep us all “locked in” to excruciatingly expensive contracts, but am thrilled consumers have options like those described here to go with an alternative carrier like T-Mobile. I’m definitely holding off on a new iPhone 4S for now, 和 when I do purchase a new iPhone I’ll seriously consider just buying an 开锁ed versi上.
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