Your Samsung Galaxy phone is stuck in a bootloop after attempting to uninstall Magisk, a common issue that can occur after modifying the system. Don't worry, there are steps you can take to troubleshoot and potentially fix this problem. Here's a guide to help you recover your device:

**Understanding the Issue:**
Bootloop occurs when your phone constantly restarts itself, usually getting stuck on a specific screen like the Samsung Galaxy logo. This often happens after installing custom software, like Magisk, which modifies system files.

**Troubleshooting Steps:**

1. **Safe Mode:** Try booting your phone into Safe Mode. This disables all third-party apps, allowing you to determine if a conflicting app is causing the issue. To enter Safe Mode, usually long-press the power button and select 'Safe Mode' from the power menu. If your phone boots normally in Safe Mode, uninstall recently installed apps one by one to identify the culprit.

2. **Reinstall Magisk:** If you suspect the Magisk removal is causing the problem, consider reinstalling it using a different method or version.

3. **Repair Mode:** Utilize Samsung's Repair Mode by accessing the Recovery Menu (usually by pressing Volume Up + Power button) and selecting 'Repair Mode'. This might help fix minor system corruptions.

4. **Factory Reset:** As a last resort, perform a factory reset. This will erase all data on your phone, so ensure to back up any important files beforehand. Find the 'Wipe Data/Factory Reset' option in the Recovery Menu and follow the on-screen instructions.

**Seek Professional Help:**
If none of these steps resolve the bootloop, it's recommended to contact Samsung support or a qualified repair technician. They can diagnose the issue further and offer a more tailored solution.

**Prevention Tips:**

* **Back Up Regularly:** Always back up your phone data before making significant system changes.
* **Research Thoroughly:** Before installing custom software like Magisk, research thoroughly and understand the potential risks and consequences.
* **Use Trusted Sources:** Download Magisk and other modifications only from reputable sources to minimize the risk of encountering corrupted or malicious files.

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