#Problem Description 1:
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Mar 31, 2020 3uTools-Forum. Welcome to 3uTools forum. Here you can find all information about iOS and 3uTools. Skip to content. Jan 06, 2020 iPhone Activation iCloud Bypass Using 3utools 2020 ( Full Tutorial ),iPhone iCloud Unlock iPad/iPod/Apple Watch/ iPhone 4/4s/5/5c/5s/6/6s/6 plus/7/7 plus/8/8 plus/X/XS/XS Max/XR/X, Supported With.
Even though replug iDevice to PC repeatedly, 3uTools still fails in connecting iDevice with error 'Connection Timeout'. Please keep reading to figure out how to fix it.
Solutions:
1. Please check if your USB cable has following problems:
If any above mentioned situation exists, you are suggested to change to a new geniune cable or plug in the backward USB port. If the problem persists, you can try another computer.
2. Click 'Repair Driver' as the picture below.
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3. iDevice's free storage should not be less than 200M. Head to Settings > General > iPhone Storage to check the storage.
4. This is not ideal, but if none of above tips fix your issues, the last resort is to turn off Windows Firewall.
Control Panel → System & Security → Windows Firewall, then select 'Turn off Windows Firewall'.
# Problem Description 2
When you connect your device with a computer for the first time, an alert asks whether you trust the PC. If you accidentally tap 'Untrust' or forget to tap 'Trust' in time, 3uTools will prompt 'Failed to Trust' or 'Trust Timeout'.
Solution: To fix this, you can replug your device and then tap 'Trust' on your device.
# Problem description 3
If you enable USB Accessories in iOS 11.4.1 or later, your device should have this pop-up since your iPhone was locked over one hour. And it probably one of the reasons caused you failed to connect your device with 3uTools.
Solution: Just unlock your iPhone and tap 'Trust'. The toggle next to USB Accessories is off by default.
3uTools V2.31 brings Wi-Fi connection to users, check here to enable it!
You could turn off the feature through Settings-- select Face ID & Passcode (or Touch ID & Passcode if not using an iPhone X). Then, scroll down to the Allow Access When Locked section.
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1. For iDevice color
3uTools could only read the iDevice factory color instead of the current panel color. To know whether the panel or case is replaced or not, you can visually check if the actual color of the device matches to factory color read by 3uTools.
2. For hard disk capacity
(1) Upgrade Capacity: It refers to upgrading the internal hard disk(ROM) with a larger capacity version. For example, an iDevice with 16GB capacity could be upgraded to 128GB capacity.
(2) Change Hard disk: The original hard disk of iDevice may be damaged, and it has to be replaced.
(3) Remove Hard Disk: The hard disk may be dismantled to change the factory data technically.
3. For sales model
(1) Apple Replaced Device: It is a brand new device for after-sales replacement from Apple.
(2) Apple Refurbished Device: It refers to the device refurbished and re-sold by Apple, “ Apple Certified Refurbished Products” can be reached on Apple official website.
(3) Demo Device: As the name implies, demo device is exhibited in Apple Store or retail stores, customers will try out demo devices.
4. For iDevice screen
The sole screen serial number can not be read, thus, 3uTools can not verify if the device screen is replaced or not. The display accessories assembly includes the LCD display, touch screen, front camera, earpiece, sensor and other accessories. Most repair men would not replace the camera from old assembly to the new assembly, because it may easily get damaged to dismantle the assembly. In short, if a repair man want to replace the display accessories assembly, he may need to replace the whole one.
Therefore, if the factory value of front camera does not match to the detected value, the screen display may be changed.
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5. For Model number
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![3utools 3utools](https://www.3u.com/upload/20151130/1448872718615043489.png)
The model number of a device begins with a variable first letter representing the source of the device (replacement, engraved, etc.). If the read value of Model Number is “User’s decision needed”, you could find the model number on the back of your device, or you could go to Settings - General - Regulatory to know the model number.
6. For abnormal test results
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![Tutorial 3utools pc Tutorial 3utools pc](/uploads/1/2/6/1/126133231/574525136.png)
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If the test results of battery serial number, front camera, rear camera or Touch ID serial number are abnormal , the main board or hard disk of device may be changed.
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