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https://github.com/qnblackcat/How-to-Downgrade-apps-on-AppStore-with-iTunes-and-Charles-Proxy.git
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Nguyễn Đạt
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README.md
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README.md
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[II. Requirements](#requirements)
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[III. Let's get into it](#getintoit)
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[III. Get Started](#getintoit)
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[1. Preparing](#preparing)
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[2. Install Charles Proxy Cerfificate](#cert)
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[3. Create the Breakpoint](#breakpoint)
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## I. Notes
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<a name="Notes"></a>
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<a name="Notes"/>
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- The Guide seems complicated, but you only need to do Step 1 to 3 for the first time. And there are 4 steps in total.
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- The Guide seems complicated, but you only need to do Step 1 to 3 for the first time. And there are 5 steps in total.
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- Jailbreak is **NOT** needed. Since the iPA comes directly from iTunes, it's encrypted and can be installed without Sideload. The IPA is 100% legit.
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- You can get the old version of any apps on AppStore as long as that version is still **available** on AppStore.
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## II. Requirements
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<a name="requirements"></a>
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<a name="requirements"/>
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- **iTunes 12.6.5** - the latest version of iTunes that supports download apps. Download here (directly from Apple).
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- **A Windows machine**: Windows XP/7/10 are supported, not tested on Windows 11 yet.
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_(Why Windows only? - Apple killed iTunes 12.6.5 on macOS. Even if you manage to get iTunes 12.6.5 on your Mac, the download feature just will does not work.)_
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> _(Why Windows only? - Apple killed iTunes 12.6.5 on macOS. Even if you manage to get iTunes 12.6.5 on your Mac, the download feature just will does not work.)_
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- **Charles Proxy**. I use version 4.2.7 but I don't think it's matter. _(No need to crack Charles Proxy)_
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- **An Apple ID for iTunes**. Use a clone ID if you like. Keep in mind that if you switch to another ID, you'll need to re-do the procedure from **Step 3**.
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- The `Build Number Version` of the app you want to downgrade. It is a chain of 9 numbers representing the version of the application. You always can get the `Build number Version` most apps on AppStore from [Tool Lantency](https://tools.lancely.tech/apple/app-search). See more info in pictures below:
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- Pic 1, 2, 3
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- **An Apple ID for iTunes**. Use a clone ID if you like. Keep in mind that if you switch to another ID, you'll need to re-do the process from **Step 3**.
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## III. Let's get into it
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<a name="getintoit"></a>
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### 1. Preparing.
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## III. Get Started
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<a name="getintoit"/>
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### Step 1. Preparing
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<a name="preparing"/>
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- Nothing special about Charles Proxy so I'll focus on iTunes.
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- After you install iTunes succesfully, go to **Edit** => **Preferences** => **Avanced** => Untick **Check for new software updates automatically** to prevent iTunes from asking for update.
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- If you get an error about **Library.itl** when opening iTunes: Go to `“C:\Users\Username\My Music\iTunes\”` and delete the existed **Library.itl**
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- Login into iTunes with your prepared Apple ID.
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- pic 4
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### 2. Install Charles Root Certificate
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- pic 5678
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### 3. Create a Breakpoint
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- Login into iTunes with your prepared Apple ID: **Account** => **Sign-in**
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- The `Build Number Version` of the version you want to downgrade. You can get the `Build number Version` of most apps on AppStore from [Tool Lantency](https://tools.lancely.tech/apple/app-search). See more info in pictures below:
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### Step 2. Install Charles Root Certificate
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<a name="cert"/>
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_**Congrats! You just installed Charles Certificate!**_
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### Step 3. Create the Breakpoint
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<a name="breakpoint"/>
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_(This is where the fun begins!)_
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1. Open iTunes & Charles Proxy
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2. Search for the app you want to downgrade. I will get the IPA of **Facebook v161.0** as an example
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3. Select **Get** or **Download** to download **Facebook**. This is not the version we want so we'll delete it.
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4. Now, go to **Charles Proxy**, we'll see a list of domains. **Find a domain that has a form of** `“p**-buy.itunes.apple.com”`, `**` is two-random numbers. As you can see in my picture below, mine is `“p31-buy.itunes.apple.com”`. Right-click on it and select **Enable SSL Proxying**
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5. Enable the Breakpoint
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- Go back to iTunes and download Facebook again. This is still not a version we want, so we'll delete it.
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- In Charles Proxy, you'll see a new `p31-buy.itunes.apple.com` address **with the blue icon at the top of the line**. Expand this address to `buyProduct`. And then following the pictures:
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### Step 4. Get the old version of the appplication (IPA)
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<a name="getipa"/>
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- **Note: You ONLY need to do the first 3 steps once. The next time you download an old version of any apps, you'll start from this step (Step 4).**
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- Go back to iTunes and download Facebook, again! **Charles Proxy** will automatically show the **Breakpoint popup.** Select **Edit Request** => **XML Text** => Replace the current `Build Number Version` of Facebook with the `Build Number` of **Facebook v161.0**: `826067593` => **Execute** => **Execute**. Now iTunes will download **Facebook v161.0** istead of the latest version.
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> But how do I know the `Build Number` of **Facebook v161.0**? - Read [Preparing Section](#preparing) carefully!
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- How do I know the `Build Number` of **Facebook v161.0**? - Read [Preparing Section](#preparing) carefully!
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### Step 5. Install the downloaded IPA.
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<a name="installipa"/>
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- We've finished the hardest part!👊 The IPA will be saved at ```C:\Users\<User>\Music\iTunes\iTunes Media\Mobile Applications```
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> _**Pro Tips:**_ Instead of going to the location above, **iTunes** => **Library** => Right-click on the app => **Open in Explorer**
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-
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